LOW VOLTAGE Systems - Melbourne Airport
Transcript of LOW VOLTAGE Systems - Melbourne Airport
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13/12/2019
TECHNICAL STANDARD
MAS-ELC-001
LOW VOLTAGE SYSTEMS
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DISCLAIMER
This Standard has been developed by Australia Pacific Airports (Melbourne) Pty Ltd (Melbourne
Airport) for use in the construction and maintenance of works at Melbourne Airport in order to:
Provide guidance to persons planning and performing those works as to airport specific
requirements; and
Promote consistency in utilities infrastructure across the airport generally.
While Melbourne Airport expects users to comply with this Standard, users should keep in mind that
in some circumstances a higher standard than the minimum set out in this Standard may be
warranted. In particular, users are also required to:
Exercise their professional judgement as to whether this Standard is appropriate to the
particular circumstances;
Bring to the task their knowledge of other relevant industry standards and practices that
should also apply; and
Request from Melbourne Airport, authority to depart from this Standard, and advise why such
departure is appropriate.
The use of the information contained in this Standard is at the user’s sole risk. Melbourne Airport,
officers, employees and agents:
Make no representations, express or implied, as to the accuracy of the information contained
in this Standard;
Accept no liability for any use of the information contained in this Standard or reliance placed
on it; and
Make no representations, either express or implied, as to the suitability of the information
contained in this Standard for any particular purpose.
Melbourne Airport does not endorse, or in any respect warrant, any third party products or services by
virtue of any information, material or content referred to, included in, or linked to from this Standard.
Please note that this Standard may be updated from time to time without notice and shall be subject
to Periodic Review as part of the Melbourne Airport Document Control Process (MAS-GEN-002).
Users are required to check they are referring to the most recent version.
Copyright in this document belongs to Melbourne Airport.
Document Number MAS-ELC-001
Approver J. Mansfield Date 09/11/2018
Maintainer C. Berriman Date 13/12/2019
Version Rev 2 Revision Date 13/12/2019
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CONTENTS
1 INTRODUCTION ...................................................................................................................................... 6
1.1 Purpose ........................................................................................................................................... 6
2 SCOPE ....................................................................................................................................................... 7
2.1 Mandatory and Non-Mandatory Requirements ......................................................................... 7
2.2 Limits of Standard ......................................................................................................................... 7
2.3 Deviation from Standard ............................................................................................................... 7
3 REFERENCES .......................................................................................................................................... 8
3.1 Statutory Documents .................................................................................................................... 8
3.2 Australian Standards ..................................................................................................................... 8
3.3 APAM Standards ........................................................................................................................... 9
3.4 APAM Drawings ........................................................................................................................... 10
3.5 Rules, Codes of Practice and Guidelines ................................................................................ 11
3.6 Selection and Interpretation of Standards ............................................................................... 11
4 DEFINITIONS .......................................................................................................................................... 12
4.1 Terms and Definitions ................................................................................................................. 12
4.2 Abbreviations ............................................................................................................................... 15
5 GENERAL REQUIREMENTS ............................................................................................................... 17
5.1 Sustainability ................................................................................................................................ 17
5.2 Safety in Design ........................................................................................................................... 17
5.3 Fitness for Purpose ..................................................................................................................... 17
5.4 Life Cycle Costing ....................................................................................................................... 17
5.5 Maintainability .............................................................................................................................. 18
5.6 Testing and Commissioning....................................................................................................... 19
5.7 Durability ....................................................................................................................................... 19
5.8 Asset Management ..................................................................................................................... 20
5.9 Building Information Modelling (BIM)........................................................................................ 20
5.10 APAM Accredited Suppliers and Specialists ........................................................................... 20
5.11 Electrical Service Level .............................................................................................................. 21
6 DESIGN PHILOSOPHY ......................................................................................................................... 22
6.1 Service / Consumer Mains ......................................................................................................... 22
6.2 Main LV Switch Rooms .............................................................................................................. 23
6.3 Electrical Service Level .............................................................................................................. 25
6.3.1 Safety Services ................................................................................................................. 25
6.3.2 Service Level .................................................................................................................... 25
6.3.3 Mechanical Electrical switchboards ................................................................................ 25
6.3.4 Assembly Colour Coding .................................................................................................. 26
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6.4 Main LV Switchboards (MSB) .................................................................................................... 26
6.4.1 APAM Standard Specification ..................................................................................... 27
6.5 Main Distribution Switchboard (MDB) ...................................................................................... 27
6.5.1 APAM Standard Specification ..................................................................................... 28
6.6 Supply Distribution Authority (SDA) .......................................................................................... 28
6.6.1 APAM Standard Specification ..................................................................................... 28
6.7 Distribution Board (DB) ............................................................................................................... 28
6.7.1 Tenant Distribution Boards .......................................................................................... 28
6.7.2 Categories of DB ........................................................................................................... 29
6.7.3 APAM Standard Specification ..................................................................................... 30
6.7.4 Communications with Switchboards and Distribution Boards ................................ 30
6.8 Sub-Main Cabling ........................................................................................................................ 30
6.9 Final Circuit Wiring ...................................................................................................................... 31
6.9.1 Cable Sizing................................................................................................................... 31
6.9.2 Cable De-Rating Factors ............................................................................................. 31
6.10 Redundant Services .................................................................................................................... 32
6.11 Documentation, Quality Assurance and ongoing Maintenance ............................................ 32
7 OPERATIONAL PHILOSOPHY ............................................................................................................ 34
8 ELECTRICAL SUPPLY ......................................................................................................................... 36
8.1 General ......................................................................................................................................... 36
8.2 Supply Arrangement ................................................................................................................... 36
8.3 Load Rating .................................................................................................................................. 36
8.3.1 Spare Capacity .............................................................................................................. 36
8.4 Fault Rating .................................................................................................................................. 36
8.5 Supply Quality .............................................................................................................................. 36
8.5.1 Power Factor ................................................................................................................. 36
8.5.2 Harmonics ...................................................................................................................... 36
8.5.3 Load Balance................................................................................................................. 37
8.6 Metering ........................................................................................................................................ 37
8.7 Load Shedding ............................................................................................................................. 37
8.8 Surge Protection .......................................................................................................................... 37
8.9 Electro-Magnetic Compatibility (EMC) ..................................................................................... 38
9 SERVICE MAINS .................................................................................................................................... 39
9.1 General ......................................................................................................................................... 39
9.2 Mains Cabling .............................................................................................................................. 39
9.2.1 Essential ......................................................................................................................... 39
9.2.2 Non-Essential ................................................................................................................ 39
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9.3 Cable Reticulation ....................................................................................................................... 39
9.3.1 Cable Trays ................................................................................................................... 39
9.3.2 Underground .................................................................................................................. 40
9.3.3 Diverse Paths ................................................................................................................ 41
10 PROTECTION & DISCRIMINATION ................................................................................................... 42
10.1 Prospective Short Circuit Current (PSCC) ............................................................................... 42
10.2 Protection ...................................................................................................................................... 42
10.2.1 Air Circuit Breakers ....................................................................................................... 42
10.2.2 Moulded Case Circuit Breakers .................................................................................. 42
10.2.3 Miniature Circuit Breakers ........................................................................................... 43
10.2.4 Cascade Protection ...................................................................................................... 43
10.3 Discrimination ............................................................................................................................... 43
10.4 Selectivity ...................................................................................................................................... 43
11 METERING .............................................................................................................................................. 44
11.1 Approach ...................................................................................................................................... 44
11.1.1 Loads................................................................................................................................ 44
11.1.2 Connections ..................................................................................................................... 44
11.1.3 Tenancies ......................................................................................................................... 45
11.2 Check Metering ............................................................................................................................ 45
11.2.1 Power quality meters ...................................................................................................... 45
11.2.2 Check Meters ................................................................................................................... 45
11.3 Energy Metering .......................................................................................................................... 46
11.4 Supply Authority – Tariff/Revenue Metering ............................................................................ 47
11.5 NCC Section J Metering ............................................................................................................. 47
11.6 Mechanical Services and HVAC Metering ............................................................................... 48
12 NOMENCLATURE ................................................................................................................................. 49
12.1 Electrical fixtures labelling .......................................................................................................... 49
12.2 Cable Details labelling ................................................................................................................ 50
13 EARTHING & BONDING ....................................................................................................................... 51
13.1 General ......................................................................................................................................... 51
13.2 MEN Earthing System ................................................................................................................ 51
13.2.1 Protective Earthing (PE) .............................................................................................. 51
13.2.2 Functional Earthing (FE) .............................................................................................. 52
13.2.3 Earthing Conductor Size (csa) .................................................................................... 52
Appendix A Standard Drawings and Details .............................................................................................. 53
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1 INTRODUCTION
1.1 Purpose
The purpose of this design standard is to specify the minimum design and safe working requirements
for the low voltage reticulation systems within all buildings and facilities at Melbourne Airport.
This standard applies to all electrical works within the boundary of APAM. All tenants,
concessionaires and government agencies are bound by the provisions of the standard.
Building activity at the airport, and any corresponding electrical works, that fall within the coverage of
the (Commonwealth) Airports Act may require the issue of Airport Lessee Consent. Compliance with
this standard forms part of the Airport Lessee Consent.
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2 SCOPE
The scope of this standard covers the design and installation of low voltage reticulation systems
including, sources of supply, cables (types, selection, segregation, routing, wiring method etc.), cable
enclosures and support systems, switchboards, circuit protection, voltage drops and fault operation.
National standards, international standards and national legislation shall take precedence over this
standard where they present a higher level of service or protection.
2.1 Mandatory and Non-Mandatory Requirements
The following language key describes the requirements of imperative statements within this Standard.
The word:
Shall - describes mandatory requirements;
Should - describes non-mandatory best practice recommendations; and
May - describes possible options that are not mandatory or best practice.
2.2 Limits of Standard
Users of this Standard shall explicitly demonstrate compliance with this Standard. Compliance shall
be demonstrated through:
Adopting appropriate standards and providing explicit reasons for their selection; or
Providing an explicit, evidence based, business case supporting compliance with this standard.
The general statement “in accordance with Melbourne Airport Standards”, shall not be deemed
acceptable without further detail.
2.3 Deviation from Standard
Where the requirements of this Standard are not able to be met through the design process, a request
for deviation shall be made. Requests for deviation shall explicitly state the areas where a proposal
does not comply. As a minimum, submissions shall include detailed commentary on:
The reason for deviation from this Standard;
How the deviation complies with all other mandatory standards or regulations; and
Any impacts on safety, reliability, ongoing cost, operability and maintenance.
Deviations from any part of this Standard shall be submitted in writing to the relevant APAM
stakeholders for endorsement before they are implemented or incorporated into a design. Approval of
a deviation from this Standard is not guaranteed and is unlikely to be granted without a compelling
reason. Approval of a deviation shall not constitute approval of the same approach in the future.
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3 REFERENCES
This standard is issued to illustrate the requirements and rules applying to LV electrical installations
carried out at APAM.
This standard’s requirements are mandatory conditions for the supply of electrical services, and apply
to all electrical works within the boundary of APAM.
Unless specifically noted to the contrary, Acts, Regulations and Codes refer to those issued in
Victoria.
3.1 Statutory Documents
Electricity Safety Act, 1998.
Electricity Safety (Installations) Regulations, 2009.
Electricity Safety (Equipment) Regulations, 2009.
Electricity Safety (Registration and Licensing) Regulations, 2010.
Electricity Safety (Electric Line Clearance) Regulations, 2010.
Electricity Safety (Cathodic Protection) Regulations, 2009.
Electricity Safety (Management) Regulations, 2009.
Electricity Supply Act, 1995.
National Construction Code.
3.2 Australian Standards
AS/CA S009: 2013 Installation Requirements for Customer Cabling (Wiring rules).
AS/NZS 1284 Electricity Metering.
AS/NZS 1768-2007 Lightning Protection.
AS/NZS 3000-2018 Electrical Installations (known as the Australian/New Zealand Wiring Rules).
AS/NZS 3008.1.1 2017 Electrical installations – Selection of cables – Cables for alternating voltages up to and including 0.6/1kV – Typical Australian installation conditions.
AS/NZS 3011 Parts 1 and 2, Secondary batteries.
AS/NZS 3012 Construction and demolition sites.
AS/NZS 3013-2005 Electrical installations – Classification of the fire and mechanical performance of wiring system elements.
AS/NZS 61439.1:2016 Low voltage switchgear and control gear assemblies – General Rules.
AS/NZS 3760-2010 In-service safety inspection and testing of electrical equipment.
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AS 3851 The calculation of short-circuit currents in three-phase a.c. systems.
AS 4070 Recommended practices for low-voltage electrical installations and equipment in MEN systems from transient over-voltages.
AS/NZS 4536-1999 (R2014)
Life cycle costing - An application guide.
AS 4777.1-2016 Grid connection of energy systems via inverters.
AS/NZS 4836-2011 Safe working on low-voltage electrical installations.
AS/NZS 5033 - 2014 Installation of photovoltaic (PV) arrays.
AS 60529 Degree of protection provided by enclosures (IP Code).
AS/NZS 61558.1-2008 Safety of power transformers, power supplies, reactors and similar products - general requirements and test (IEC 61558-1 Ed 2, MOD).
AS/NZS 62040.1.1 Uninterruptible power systems (UPS).
3.3 APAM Standards
This technical design standard shall be read in conjunction with the following APAM Standards:
Standard Ref Title
MAS-GEN-4 Maintainability
MAS-GEN-5 CAD
MAS-GEN-6 Asset ID Information
MAS-GEN-7 GIS
MAS-GEN-8 BIM
MAS-MCH-001 Mechanical Services
MAS-MCH-002 Mobile Plant
MAS-MCH-007 BMS and Automated Controls
MAS-MCH-022 Aerobridges
MAS-ELC-002 High Voltage Systems
MAS-ELC-003 LV Switchboards – Technical Specification
MAS-ELC-004 High Voltage Safety and Operational Procedures
MAS-ELC-005 Aeronautical Ground Lighting
MAS-ELC-006 EMCS Standard
MAS-FPR-001 Fire Protection, Public Address, EWIS and Hearing Loops
MAS-ICT-001 Communications Room Design Specification
MAS-ICT-006 Structured Cabling Standard
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3.4 APAM Drawings
The following Standard drawings are provided for reference in Appendix A.
Drawing No. Title
MELBAIR-UTL-AP-LEX-DR-ET-0032
OPTION 1 - MAIN LOW VOLTAGE SWITCHBOARD FRONT CONNECT - GENERAL ARRANGEMENT
MELBAIR-UTL-AP-LEX-DR-ET-0033
OPTION 2 - MAIN LOW VOLTAGE SWITCHBOARD BACK TO BACK - GENERAL ARRANGEMENT
MELBAIR-UTL-AP-LEX-DR-ET-0034
MAIN LOW VOLTAGE SWITCHBOARD SINGLE LINE DIAGRAM
MELBAIR-UTL-AP-LEX-DR-ET-0035
MAIN SWITCHBOARD (MDB) GENERAL ARRANGEMENT
MELBAIR-UTL-AP-LEX-DR-ET-0036
MAIN SWITCHBOARD (MDB) SINGLE LINE DIAGRAM
MELBAIR-UTL-AP-LEX-DR-ET-0037
SDA SWITCHBOARD TYPE A & TYPE B GENERAL ARRANGEMENT
MELBAIR-UTL-AP-LEX-DR-ET-0038
SDA SWITCHBOARD AND SDA CT METER PANEL SINGLE LINE DIAGRAM
MELBAIR-UTL-AP-LEX-DR-ET-0039
OPTION 1 - MAIN LOW VOLTAGE SWITCHBOARD FRONT CONNECT - ROOM LAYOUT
MELBAIR-UTL-AP-LEX-DR-ET-0040
OPTION 2 - MAIN LOW VOLTAGE SWITCHBOARD BACK TO BACK - ROOM LAYOUT
MELBAIR-UTL-AP-LEX-DR-ET-0041
MDB & SDA SWITCHROOM LAYOUT
MELBAIR-UTL-AP-LEX-DR-ET-0042
MDB ESS & N/ESS & FINAL DB CUPBOARD LAYOUTS
MELBAIR-UTL-AP-LEX-DR-ET-0043
MAIN LOW VOLTAGE SWITCHBOARD SINGLE LINE DIAGRAM WITH NETWORK COMMUNICATIONS CONNECTIONS OVERLAY
MELBAIR-UTL-AP-LEX-DR-ET-0044
MAIN DISTRIBUTION SWITCHBOARD (MDB) SINGLE LINE DIAGRAM WITH NETWORK COMMUNICATIONS CONNECTIONS OVERLAY
MELBAIR-UTL-AP-LEX-DR-ET-0045
SDA SWITCHBOARDS AND SDA CT METER PANEL SINGLE LINE DIAGRAM WITH NETWORK COMMUNICATIONS CONNECTIONS OVERLAY
MELBAIR-UTL-AP-LEX-DR-ET-0046
MAIN LOW VOLTAGE SWITCHBOARD NETWORK CONNECTION BLOCK DIAGRAM
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3.5 Rules, Codes of Practice and Guidelines
Electricity Distribution Code.
Electricity System Code.
Electricity Retail Code.
Electricity Customer Metering Code.
Victorian Service and Installation Rules, 2014 (inc Amt 1 – 2017).
Codes of Practice and Guidelines published by ESV.
Codes of Practice – Safe Electrical Work Low Voltage Electrical Installations.
3.6 Selection and Interpretation of Standards
All electrical work shall be carried out in compliance with appropriate legislation and standards and
APAM requirements. The order of precedence shall be as follows:
Legislation,
Standards required by legislation,
APAM standards,
Consultants shall accept responsibility for the selection and use of relevant Australian, International
and APAM standards. Although a number of standards and drawings are specified in this document
they are not definitive and it is the responsibility of Consultants to fully acquaint themselves with the
various standards and select those that are relevant in meeting specific APAM project requirements.
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4 DEFINITIONS
4.1 Terms and Definitions
Acronym Definition
Aero Refers to the Airport itself as opposed to the Business park and surrounds.
Airside Areas of Melbourne Airport, including the airfield, apron and parts of the terminal buildings to which access is controlled.
Circuit breaker A switch that automatically interrupts the flow of electric current if the current exceeds a pre-set limit, measured in amperes. Circuit breakers are used most often as a safety precaution where excessive current through a circuit could be experienced. However, it is utilised to protect the electrical infrastructure. Unlike fuses, they can usually be reset and re-used.
Consumer’s mains These are the conductors between the point of attachment and the service equipment. They are determined in accordance with the Victorian Service and Installation Rules and AS/NZS 3000.
Contractor
The term Contractor, in the context of this standard, means either a building or electrical contractor responsible for and licensed by Energy Safe Victoria, to undertake electrical work referred to herein.
Criticality A measure of the Service Level that an electrical system is designed to provide. In levels of descending criticality: Aero Critical; Aero Essential; Aero Non-Essential.
Critical An electrical load that is required to:
Stay ON through short duration mains outages
Stay ON through Medium duration mains outages
Stay ON through Long duration mains outages
Stay ON through Extended mains outages
Designer A competent skilled person to undertake design work on an APAM project. Designers may be APAM employees, contractors, consultants or employed by consultants.
Discrimination Electrical discrimination is achieved when a lower rated protective device (circuit breaker or fuse) located closer to an electrical fault, operates before a higher rated circuit breaker which is further away (upstream) from the lower rated device and the fault. Without discrimination, if an upstream protective device operated before or at the same time as the downstream device, then circuits that do not have a fault would also trip.
Distribution board (DB) This is a switchboard that is downstream from a major switchboard, such as the Installation Supply Main Switchboard. Its purpose is to be located in a targeted electrical load area thus reducing the required cable sizes and to better deal with volt drop issues.
Essential An electrical load that shall:
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Acronym Definition
Experience a mains outage through short duration mains outages
Stay ON through Medium duration mains outages
Stay ON through Long duration mains outages
Stay ON through Extended mains outages
Earthing system This includes the earth grid and all conductors, piping, electrodes, clamps and other metalwork connected thereto. Whereas the Local Electricity Distributors generally use a Multiple Earthed Neutral (MEN) earthing system.
Electrical fixture A power outlet, light fitting (or group of fittings), permanently connected electrical equipment that is supplied by an electrical circuit for its operation or for the operation of devices connected thereto.
Electrolysis Refers to the process where corrosion occurs to a buried metal structure when DC current leaves the structure to enter the electrolyte of the surrounding soil. The degree and rapidity of electrolytic action depends upon the amount of current flowing, and the type of soluble salts found in the surrounding soil. Chlorides or nitrates in a clayey or loamy soil favour electrolytic action, whereas minimum electrolytic corrosion occurs in clean, dry sand.
High voltage (HV) this is a voltage exceeding 1000 Vac or 1500 Vdc.
IP rating This is the Ingress Protection rating which denotes the environmental protection provided by enclosures e.g. switchboard panels. The IP rating normally has two numbers (refer to AS 60529):
the first digit represents protection against ingress of solid objects
the second digit represents protection against ingress of liquids
Life-cycle costing A procurement costing technique that considers all life cycle costs. The aim is to determine the lowest cost of ownership of a fixed asset (initial price, installation, operation, maintenance, upgrading, disposal, and other costs) during the asset's economic life.
Like for like replacement This is a change in an installation element, usually considered to be minimal in nature, not requiring confirmatory validation testing e.g. replacing an existing water heater with one of similar rating but which may differ in appearance and manufacturer. In all situations safety must not be compromised.
Local electricity distributor This is an organisation which owns and controls the principal distribution system in the Distribution District in which the installation is located. In general, it owns and controls the wiring, poles and associated infrastructure which conveys electricity to a consumer. APAM is an Electrical Distributor but never the Local Electricity Distributor.
Low voltage (LV) This is a voltage exceeding 50 Vac or 120 Vdc but not exceeding 1000 Vac or 1500 Vdc
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Acronym Definition
Main switchboard (MSB) This is the first low voltage switchboard between the transformer terminals and the low voltage installation. The MSB is owned by APAM and is the location to establish the one and only connection between earth and neutral.
Main Distribution Switchboard (MDB)
This is a single panel, frame, or assembly of panels on which are mounted, on the face, back, or both, switches, over-current and protective devices, busbars, and instruments. Switchboards may be accessible from the front or rear and have top or bottom cable entry provisions. Where access is restricted, large switchboards are often manufactured in transportable sections for site assembly.
Non - Essential An electrical load that shall:
Experience a mains outage through Short duration mains outages
Experience a mains outage through Medium duration mains outages
Experience a mains outage through Long duration mains outages
Stay ON through Extended mains outages
Prospective fault level Refers to the maximum current (r.m.s) that is expected to flow into a short circuit at a stated point on an electrical system, which may be expressed in kA or in MVA.
Quality assurance (QA) Refers to a program for the systematic monitoring and evaluation of the various aspects of a project, service, or facility to ensure that required standards and outcomes are met and delivered. This requirement applies to both design and electrical work on site.
Residual current device (RCD)
A circuit-breaking device installed in electrical equipment to protect the operator from electrocution by sensing currents leaking to earth. Circuit breakers with fixed 10mA or 30mA coils are commonly used.
Service equipment
This is the metering and control equipment supplied and installed as specified in either APAM's or the Local Electricity Distributor's service and installation rules. It may include service fuses, circuit breakers, meters, current transformers, and links.
Uninterruptible Power Supply (UPS)
A system for sustaining continuity of mains power to the connected loads during loss of mains power incidents of both Short duration and Medium duration.
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4.2 Abbreviations
The standard has used the following abbreviations and definitions.
Acronym Definition
A Amp
A.C. Alternating Current
ACMA Australian Communications and Media Authority
APAM Australia Pacific Airports (Melbourne) Pty Ltd
AS/NZS Australian Standard/New Zealand Standard
BCA Building Code of Australia (now the NCC)
BIM Building Information modelling
BMS Building Management System
CASA Civil Aviation Safety Authority
CCTV Closed Circuit Television
DB Distribution Board
EMC Electromagnetic Compatibility
EMI Electro Magnetic Interference
GPO General Purpose Outlet
HLI High Level Interface
HMI Human Machine Interface
HV High Voltage
IP Internet Protocol and also, Ingress Protection
kA Kilo Amperes
kV Kilo Volts
LCC Life Cycle Costing
LED Light Emitting Diode
LSZH Low Smoke Zero Halogen
LV Low Voltage
MDB Main Distribution Boards
MODBUS A computer communications protocol used for connecting industrial electronic devices
MSSB Mechanical Services Switchboard
NCC National Construction Code
OHS Occupational Health and Safety
PIR Passive Infra-Red Detector (IAS movement detector)
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Acronym Definition
POE/PoE Power Over Ethernet
PTTA Partially Type Tested Assembly
SCADA Supervisory Control and Data Acquisition
SiD Safety in Design
SPD Surge Protection Device
UPS Uninterruptible Power Supply
VFC Voltage Free Contact
VSD Variable Speed Drive
WAN Wide Area Network
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5 GENERAL REQUIREMENTS
5.1 Sustainability
Users of this Standard shall demonstrate that consideration for the whole of life has been undertaken
ensuring sustainability has been optimised. Whole of life includes implementation and operation
through to decommissioning and disposal.
Works in accordance with this Standard shall consider both its effect on and how it will be affected by
the following:
Economic.
Social.
Environmental.
Security.
Operation and Maintenance.
The User of this Standard shall make use of historical, current and projected / forecasted information
when assessing the Sustainable Design for the whole of life.
Users shall apply the principles of harm minimisation. Wherein scientific doubt shall not be used as a
reason to avoid undertaking preventative measures.
5.2 Safety in Design
All design and construction activities shall appropriately consider and incorporate safety in design and
construction. This shall include construction work, accessibility, operational and maintenance
consideration. Refer to Work Health and Safety Act 2011 and Work Health and Safety Regulation
2011.
5.3 Fitness for Purpose
All services, equipment and devices to be installed on APAM projects shall be fit for the intended
operational purpose.
Fitness-for-purpose refers to fitness for the specifically intended purpose by APAM in the context of
their existing and ongoing operations.
The fitness-for-purpose shall incorporate the life cycle cost elements of Section 5.4. In particular,
accessibility, maintainability, operational factors to ensure ease of maintenance, minimisation of
energy consumption, economic considerations and effective utilisation of operational personnel.
5.4 Life Cycle Costing
A whole of life view shall be taken for all design decisions taken during the design of LV reticulation
systems. Consequently, the specification and selection of systems, products and materials shall be
considered over a product life cycle and not merely based on initial capital cost. Therefore, Life Cycle
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Costing (LCC) shall consider the initial capital cost, operational costs (e.g. energy usage and cost),
longevity and maintenance costs. This can be described as:
LCC = Cost of (initial capital + repairs + maintenance + operation + energy + disposal)
Where:
Initial Capital Cost includes removal of redundant existing equipment and cabling, design, project
management, installation/construction, testing and commissioning and handover.
Repairs include unplanned non-maintenance activities e.g. broken wires, equipment failure etc.
Maintenance includes such items as recurrent work (e.g. lamp replacement), lubrication, calibration,
software upgrade or replacement. Note that some systems or equipment elements may have a
reduced life compared with the rest of the installation. These need to be replaced at appropriate times
and due allowance is required to be made in maintenance plans and procedures.
Operation relates to those activities that are required to ensure proper on-going functionality of the
installation and equipment. It is important that Designers consider this aspect fully; otherwise
additional downtime, staffing and shift work may be unnecessarily required.
Energy is total energy (usually in kWh) required to effectively operate the plant, system or installation
over their operational life.
Disposal is the activity incurred at the end of the equipment or installation life and includes
demolition, removal from site and appropriate disposal. In addition, some equipment may contain
toxic or hazardous components which may require to be disposed by specialist organisations at
significant cost.
In most instances there are competing products, services and systems available in the market and it
is expected that various options are considered and suitable recommendations and selections made
on a life cycle costing basis. Any design change shall be able to be justified in this way.
LCC is required to consider that equipment or systems may have elements incorporating different
useful lives. It is expected that comparative LCC be demonstrated as the basis for the selection of all
systems, products and materials when fitness-for-purpose has been established.
Refer to AS/NZS 4536-1999 Life Cycle Costing for guidance of what factors shall be considered in
assessing life cycle costs.
5.5 Maintainability
All LV electrical systems and equipment shall be designed to easily facilitate safe and efficient
maintenance to be carried out by competent APAM staff and Licensed Electrical Contractors.
Due consideration shall be made regarding equipment location and clearances to ensure safe
working practises can be implemented during routine maintenance.
Ensure that all As-Built documentation and Operation and Maintenance manuals are created or
updated as part of the project works.
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5.6 Testing and Commissioning
Prior to permanent connection to supply, all installation work carried out shall be tested, and a test
report completed and forwarded to the relevant Electrical Inspector and APAM’s Electrical Authority.
This shall be carried out by the installing Registered Electrical Contractor (or another electrical
contractor engaged by the installing electrical contractor to undertake this work on their behalf).
The tests are required to check that the installation is safe and that it complies with the relevant
Australian Standards. APAM may also specify additional particular tests for individual projects. Refer
to AS/NZS 3670 – in-service safety inspection and testing of electrical equipment.
Testing shall also be undertaken in order to verify compliance with all legislation, standards and
requirements.
After testing is completed, all electrical installations, systems and sub-systems shall be commissioned
in accordance with a check list of actions or activities that are specifically developed for the project.
Note that the Contractor shall undertake all relevant pre-commissioning tests prior to inviting
appropriate parties, including APAM, to witness site testing and commissioning.
Confirm that circuit protective devices are sized and adjusted as required to properly protect the
installed circuits and electrical network.
Three-phase electrical installations shall be tested at all three-phase switchboards and three-phase
outlets to ensure proper phase sequence is present; if not, modify to achieve this.
All commissioning results shall be documented in a clear and concise manner stating the measured
values obtained (where relevant), set points and alarm status, as well as other required features and
whether the tests passed or failed, or what remedial action was taken. The results of the testing and
commissioning shall be bound in a report, a copy of which shall be forwarded to APAM.
If installation or system failure is observed during testing and commissioning, after modifications are
effected, re-testing shall be repeated until satisfactory outcomes and installation or system operation
are achieved and documented as described above.
Allow a minimum of one week’s notice to inspect any work that is to be concealed to enable
photographic records and measurements to be taken.
Contractors shall provide all tools and equipment required to undertake the requisite testing and
commissioning of the installations or systems.
Test instruments shall be certified as to their accuracy; calibration dates shall be stated as well as by
whom calibrations were undertaken.
5.7 Durability
The minimum design life requirements for LV Reticulation systems shall be:
LV switchboards and electrical systems 25 years
Cabling and support systems 25 years
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5.8 Asset Management
APAM aims to maintain international best practice in Asset Management by aligning out projects and
standards with ISO55000. The APAM Design Standards for LV Reticulation aims to deliver assets
that provide lowest lifecycle costs for APAM and our stakeholders. To achieve our objectives,
accurate Asset Information is crucial. The lifecycle management of our assets is governed by our
Asset Management Framework, which defines the APAM Asset Management Policy, Strategic Asset
Management Plan and the Asset Management Plan – LV Reticulation.
The Asset Management Plan – LV Reticulation (AMP) defines the minimum Asset Management
System Requirements that form part of the Contractor’s deliverable, including but not limited to:
As-built Drawings (CAD Standard)
BIM model (BIM Standard)
Asset Data Files (Data Standard)
SCADA Schematics (SCADA Standard)
A comprehensive list of deliverables can be found in the various APAM Technical Specifications.
5.9 Building Information Modelling (BIM)
APAM’s approach to BIM is aligned with industry BIM standards for information production and
delivery specifically NATSPEC, ISO19650 & PAS1192.
All works are to be implemented and delivered in accordance with APAM Employers Information
Requirements (EIR) for Digital Engineering (MAS-GEN-008). This is the overarching technical
standard for all projects throughout APAM, it outlines all technical deliverables, process, procedures,
file types, set up standards for all BIM, GIS and CAD data. Any questions or queries on information
inside this standard should be written to [email protected]
5.10 APAM Accredited Suppliers and Specialists
APAM aims to maintain consistency with design and operational practices. The following
stakeholder’s / specialist suppliers are to be coordinated with during design development of LV
distribution systems;
APAM HV Team – for revenue metering requirements as all meters are EDMI and free-issued to project delivery team
Systems Insight – for Standby Generation interfaces and PLC load management
Schneider – Building Management System (BMS) interfaces
Schneider – Electrical Management System (EMS / SCADA) interfaces
Accredited suppliers for low voltage installations please refer to APAM LV Switchboard Specification
(reference MAS-ELC-003).
Accredited suppliers for high voltage installations please refer to APAM HV Standard (reference MAS-
ELC-002) for accredited suppliers.
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5.11 Electrical Service Level
Electrical Low Voltage Systems are designed to align with the overall airport power network. It is vital
that electrical loads are supported by the appropriate infrastructure to ensure an appropriate
continuity of electrical supply.
APAM recognises four categories of outage based on the duration of loss of mains.
Short Outage Medium Outage Long Outage Extended Outage
DURATION ms to seconds
< 180 seconds
Seconds to
minutes
180 s to 10 m
Minutes to Tens
Of Minutes
10 m to 45 m
Longer than
45 minutes
> 45 m
POSSIBLE CAUSE
Dips, sags, upstream switching
Trips, switching failure, network problems, faults.
Transformer failure, busbar or
network problems, faults.
Zone transformer failure, major
network problems.
The design of airport – wide electrical systems is based on having two HV networks, one of which has
standby generators providing essential power over a HV network.
Some substations are equipped with dual transformers, one of which is powered via the network that
is supported by the generators. This is designated the “Essential” supply transformer.
It is understood and accepted that certain load categories can and will experience a mains outage for
the time it takes for the generator supply to be switched automatically through to the LV load
switchboard. Other load categories can and will experience a mains outage for periods while
automatic transfer switches operate to reinstate mains power. Still other load categories can and will
experience a mains outage for longer periods where the time without power is the time required for
the networks and transfer switches to be manually reconfigured.
The most critical loads must be supplied via an uninterruptible power supply that automatically
bridges the loss of mains power until such time as the generator supply is switched automatically
through to support the LV load.
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6 DESIGN PHILOSOPHY
This section describes the fundamental design philosophies to be used in designing or augmenting
the LV reticulation systems for APAM. This Standard shall be read in conjunction with the HV
Reticulation Design Standard, which covers the specific requirements for substations and HV
networks.
The design philosophy for the APAM LV reticulation system within the Terminal Buildings is based on
a 3 level distribution system, which provides a distributed load centre arrangement. The 3 distribution
levels comprise of:
Level 1 HV/LV Substation and Main LV Switchboard.
Level 2 Distributed Main Distribution Switchboards.
Level 3 Final Distribution Boards.
Figure 1 - LV Distribution Philosophy
6.1 Service / Consumer Mains
Service / Consumer mains shall be provided between the main LV switchboard (MSB) and the
transformer terminals. Service / Consumer mains shall be designed in a similar manner for both the
Essential and Non-essential services. Mains cabling shall be reticulated overhead on suitably sized
cable trays / ladders or underground using cable trenches / pits / conduits. The total overall length of
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mains cabling shall be kept to an absolute minimum to minimise the total volt drop across the cable.
The maximum allowable volt drop across mains cables shall be less than 1%.
Service / Consumer mains shall be sized in accordance with AS/NZS 3008.1.1:2017 and fully rated to
the installed substation / transformer capacity.
Service / Consumer mains shall be designed to achieve a minimum classification of WS52W in
accordance with AS/NZS 3013-2005.
6.2 Main LV Switch Rooms
All main LV switchrooms will be ventilated or cooled to maintain internal room temperatures below
25°C during normal operating conditions.
All main LV switchrooms will be constructed to provide a minimum fire rating of FRL 120/120/120 and
sized to provide clearances in accordance AS/NZS 3000:2007.
Figure 2 - Typical LV Switchroom Layout - Option 1
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Figure 3 - Typical LV Switchroom Layout - Option 2
No services, other than electrical and communications, shall be routed through switchrooms. Cooling
or ventilation shall be provided where PFC and / or AHF equipment is installed in the Switchroom.
Main LV switchrooms shall be provided with the following services and facilities:
Two points of egress at diagonally opposite positions where required.
VESDA
Rubber mats
LED Lighting providing a minimum average maintained illuminance of 360 lux at floor level.
Emergency and Escape Lighting to AS 2293.1: 2005
No automatic switching of lights.
GPO every 5m of wall
UPS GPO’s
Laminated framed copy of the Single Line Diagram shall be fixed to a wall. This shall be updated and replaced each time a change is made to the installation.
Spares cabinet.
Double data point adjacent to each entry door.
Visual and audible alarms.
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6.3 Electrical Service Level
6.3.1 SAFETY SERVICES
The term “Service Level” as used by APAM does not change or reduce in any way the requirements
for “Safety Services” as defined by AS 3000 1.45.104
6.3.2 SERVICE LEVEL
APAM designates all electrical loads into the following categories of Service Level.
SERVICE LEVEL Short Outage Medium Outage Long Outage Extended Outage
CASA Must stay ON Must stay ON Must stay ON Must stay ON
Aero Critical Must stay ON Must stay ON Must stay ON Must stay ON
Aero Essential Outage acceptable Must stay ON Must stay ON Must stay ON
Aero Non-Essential
Outage acceptable Outage acceptable Outage acceptable Must stay ON
Business Park Outage acceptable Outage acceptable Outage acceptable Must stay ON
Loads that are required to stay ON during an extended outage must at least be supported by manual
switching to alternative equipment options and/or manual connection to standby power generation
equipment. If necessary, designs must include permanent provisions for portable standby generators
to be manually but speedily connected to the load.
Loads that are required to stay ON during a long outage must at least be supported by permanently
installed automatic standby power generation and manual changeover switching.
Loads that are required to stay ON during a medium outage must at least be supported by some form
of automatic change over to an alternative LV electrical supply.
Loads that are required to stay ON during a short outage must be supported by some form of
automatic uninterruptible LV electrical supply such that the load is fully supported. This is in addition
to the backup systems that are required to provide support for the longer duration events. For
example, Aero Critical loads will require UPS backup along with connection to a generator supported
essential network as well as automatic switching of power to ensure continuity of supply. A minimum
battery support of 20 minutes (10 minutes outage plus a further 10 minutes for switching contingency)
must be provided, longer if required by the characteristics of the project.
6.3.3 MECHANICAL ELECTRICAL SWITCHBOARDS
The requirements set out above apply equally to Mechanical Electrical switchboards of all types.
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6.3.4 ASSEMBLY COLOUR CODING
APAM has adopted a simple electrical assembly enclosure colour coding scheme to assist staff to
easily identify equipment. All electrical equipment must be coloured according to function.
SERVICE LEVEL COLOUR REQUIREMENT
Non-Essential Light Grey RAL 7035
Essential / UPS Pebble Grey RAL 7032
Life Safety Signal Red RAL 3001
Mechanical Electrical
(applies to HVAC, Hydraulic, compressed air etc.)
Signal Orange RAL 2010
Enclosure – Outdoor Deep Stone Y55
6.4 Main LV Switchboards (MSB)
All MSB’s shall be constructed to achieve a minimum of Form 3b in accordance with AS/NZS 61439.1
and shall be partially type test assemblies (PTTA).
MSB’s shall be rated to the calculated maximum demand plus a minimum of 25% spare capacity for
future additional supplies. The MSB will also be provided with a minimum of 20% spare circuit
breakers fitted as part of the original fabrication; these circuit breakers shall be a mix of sizes with
ratings ranging from 160 A TP to 630 A TP. The MSB shall be constructed to be fully extendable on
both the essential and non-essential sections.
MSB shall be dual section providing essential and non-essential services with inter-connection via a
bus-section switch. Each section shall be arranged to provide dedicated tiers in accordance with the
table below.
Table 1 - Typical MSB Arrangement
MSB Section MSB Tier Load Type Minimum Circuit Breaker Rating (Trip/Frame)
Essential Tier E1 Life Safety Services 30A / 160A
Tier E2 Main Distribution Boards 630A / 630A
Tier E3 Large Mechanical Services 250A / 400A
Tier E4 Main Distribution Boards 630A / 630A
Tier E5 Large Aviation/ICT Services 250A / 400A
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MSB Section MSB Tier Load Type Minimum Circuit Breaker Rating (Trip/Frame)
Tier E6 Local Services 250A / 400A
Non-Essential Tier N1 SDA Switchboard Services 400A / 400A
Tier N2 SDA CT Panels 250A / 400A
Tier N3 Main Distribution Boards 630A / 630A
Tier N4 Large Mechanical Services 250A / 400A
Tier N5 Large Aviation Services 250A / 400A
Tier N6 Local Services 250A / 400A
Each tier shall be provided with its own tier isolator enabling individual tiers to be isolated minimising
disruption to other supplies during routine maintenance and termination of new supplies.
Incoming ACB’s and Tier Isolator E1 shall be locked ‘ON’ and labelled in accordance with AS/NZS
3000 clause 7.2.4.1 to facilitate switching by authorised persons only.
MSB shall be designed with a minimum fault rating of 100kA for 1 second to enable APAM’s make
before break switching procedure to be safely operated. Refer to APAM Document No. MAS-PRO-
ELC-001. Use a manual captured key process, based on 2 out of 3 keys, with the third key located
with the Supply Authority.
All ACB’s and Essential Circuit breakers shall be motorised and inter-connected to the SCADA
system for automatic and remote operations; they will also be fully withdrawable type enabling safe
and efficient replacement of devices during maintenance and emergency situation.
6.4.1 APAM Standard Specification
Refer to APAM Technical Specification – Document No. MAS-ELC-003 for the minimum specification
requirements associated with Main LV Switchboards.
6.5 Main Distribution Switchboard (MDB)
All MDBs shall be constructed to achieve a minimum of Form 3b in accordance with AS/NZS 61439.1
and shall be partially type test assemblies (PTTA).
Two types of MDBs shall be provided, these are classified as:
Essential MDB,
Non-Essential MDB.
MDB’s shall be rated to the calculated maximum demand plus a minimum of 25% spare capacity for
future additional supplies. The MDB will also be provided with a minimum of 20% spare circuit
breakers (160A / 250A) fitted as part of the original fabrication.
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MDB’s shall be painted to match their function: either Light Grey RAL 7035 for non-essential circuits or Pebble Grey RAL 7032 for essential circuits.
6.5.1 APAM Standard Specification
Refer to APAM Technical Specification – Document No. MAS-ELC-003 for the minimum specification
requirements associated with Main Distribution Switchboards (MDB).
6.6 Supply Distribution Authority (SDA)
Supply Distribution Authority (SDA) switchboards shall be provided to service all metered tenancy
supplies. Two standard SDA arrangements are available to be used, these comprise of:
12 Meter Assembly,
6-Meter assembly.
Refer to APAM standard drawing MELBAIR-UTL-AP-LEX-DR-ET-0038.
6.6.1 APAM Standard Specification
Refer to APAM Technical Specification – Document No. MAS-ELC-003 for the minimum specification
requirements associated with SDA Switchboards.
6.7 Distribution Board (DB)
Local MCB distribution boards shall be provided to supply local final circuits throughout APAM’s
facilities.
Distribution boards shall be dual chassis enabling the segregation of lighting and general power final
circuits. Each chassis shall be provided with its own main isolator allowing each chassis to be
separately isolated without the need to the entire DB to be shut off.
DB’s shall be rated to the calculated maximum demand plus a minimum of 25% spare capacity for
future additional supplies. The DB will also be provided with a minimum of 20% spare circuit breakers
fitted as part of the original fabrication.
All DBs will be provided with digital multi-function meters with MODBUS communication links back to
the APAM SCADA/EMCS network for the purpose of energy management / monitoring.
6.7.1 Tenant Distribution Boards
Tenant DBs shall be provided within each tenancy area in accordance with Table 2 below. The Tenant
DB will be an unequipped shell comprising of main isolator. The internal busbar chassis shall be
provided by the tenant as part of their fit-out works.
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Table 2 - Tenant DB Requirements
Type Rating Phases No. of Poles
Supplied From Comments
1 80A Single 24 SDA Switchboard Type A or B
Small Tenancy < 200sqm
2 63A Three 48 SDA Switchboard Type A or B
Medium Tenancy < 300sqm
3 100A Three 48 SDA CT Panel Medium Tenancy < 300sqm
4 160A Three 72 SDA CT Panel Large Tenancy < 400sqm
5 250A Three 96 SDA CT Panel Major Tenancy > 400sqm
6.7.2 Categories of DB
The airport requires a variety of DB types. These are classified as:
Essential
Lighting and Power DBs
Mechanical Plant
Apron Lighting DBs
Apron Services DBs
Aero Bridges
Communications Rooms
Border Force DBs
Baggage Handling
UPS DBs
Fire and Life Safety Services
X-Ray equipment DBs
Non-Essential
Tenant DBs
Lighting and Power DBs
Mechanical Plant
Street Lighting Pillars
External Services Pillars
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Electrically and physically separate Essential and Non-Essential DBs are to be provided where project
requirements dictate: multiple chassis combined in a single assembly/enclosure are not permitted.
Similarly, separate UPS DB’s are to be provided to house UPS sub circuits.
6.7.3 APAM Standard Specification
Refer to APAM Technical Specification – Document No. MAS-ELC-003 for the minimum specification
requirements associated with Distribution Boards.
6.7.4 Communications with Switchboards and Distribution Boards
There is a requirement for all Switchboards and Distribution Boards to be metered. There is a further
requirement for other forms of instrumentation to be added.
Provision is to be made in every switchboard and DB to connect to the APAM SCADA/EMCS
network.
Provide a segregated enclosure at least 250 mm x 250 mm in each DB rated 100 A or below.
Provide a segregated enclosure with separate hinged door/cover at least 400 mm x 400 mm in
each DB or MSB rated above 100 A.
Provide a UPS power point in each of these enclosures terminating in a single unswitched GPO.
Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label.
Provide CAT 6 RJ45 data outlet in each of these enclosures.
Connect the CAT 6 data point to the nearest APAM structured cabling/BMS patch panel using
CAT 6 structured cabling. Clearly label.
6.8 Sub-Main Cabling
Sub-main cabling shall be designed in accordance with the design criteria table below and shall
incorporate a minimum of 25% spare capacity.
Table 3 - Sub-main cabling requirements
Category Supply from Supply to Maximum Rating (A)
Maximum Permissible Volt Drop (%)
Cable Type
Essential MSB MDB 630A 2% WS52W
Essential MSB MSSB 400A 2% WS52W
Essential MDB DB 160A 2% WS52W
Essential MSSB Equipment 200A 2% WS52W
Essential DB Final Circuit 30A 1.5% WS52W
Non-Essential MSB MDB 630A 2% LSZH
Non-Essential MSB MSSB 400A 2% LSZH
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Category Supply from Supply to Maximum Rating (A)
Maximum Permissible Volt Drop (%)
Cable Type
Non-Essential MDB DB 160A 2% LSZH
Non-Essential MSSB Equipment 200A 2% LSZH
Non-Essential DB Final Circuit 30A 1.5% LSZH
6.9 Final Circuit Wiring
Final circuit wiring shall be in accordance with AS/NZS 3000, developed for an MEN System.
Designers must accommodate the necessary short circuit current and fault loop impedance for
effective operation of circuit protective devices (CPD) and ensure that the volt drop in the earth-
neutral return path is less than 50V under fault condition. This may be required for reduction of fault
loop impedance to ensure effective operation of the CPD within the required automatic clearing time.
Minimum size cables for power circuits shall be 2.5mm². Upsize as required by AS 3008.
Minimum cable size for lighting circuits shall be 2.5mm².
Minimum size control wiring is 1.5mm².
A separate fully sized neutral shall be run with each circuit. When sizing neutral conductors
consideration shall be given to the presence and impact of harmonic currents.
The maximum voltage drop on final circuits shall not exceed 1.5% of the nominal voltage, unless
specifically approved otherwise by APAM. Normally approval will be given if the length of the final
circuit is longer than usual or if the installation’s electrical load is small and the total voltage drop does
not exceed 5% or 7%.
6.9.1 Cable Sizing
Cables shall be selected in accordance with AS/NZS 3008.1.1, based on:
current carrying capacity, taking into account de-rating factors for “method of installation”, “grouping of circuits” and “external influences”
earth fault loop impedance
voltage drop
cable short circuit rating
Working calculations for cable selection shall be provided to APAM.
The cable size selected shall concurrently address both volt drop requirements and fault current
design needs and the ability of circuit breakers to trip on overload and fault (i.e. cable sizes may need
to be larger on long cable runs).
6.9.2 Cable De-Rating Factors
Particular attention is required regarding the de-rating of cables where these are bunched or grouped
together on cable routes or at congested cable areas such as switchboards.
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Conduits and cables shall be arranged in such a manner as to permit sufficient space between them
for the cooling of the cables and to provide the required current rating without being affected by:
heating from other current carrying conductors
self-heating due to inadequate air circulation around the cables
Specified cable ratings for stated cable sizes shall be maintained throughout the cable routes by
utilising the appropriate spacing and installation method, as determined from AS/NZS 3008.1.
6.10 Redundant Services
All redundant LV services comprising of sub-mains, switchboards, distribution boards, final circuit
wiring and accessories shall be in isolated, disconnected, stripped-out and removed from site as part
of any redevelopment and refurbishment project. Under no circumstances are redundant services to
be left within the installation.
6.11 Documentation, Quality Assurance and ongoing
Maintenance
When an electrical project is implemented, it is normally part of a larger project, which may be a new
build project, a property/facilities project, part of an expansion or refurbishment, or relocation.
Regardless of the project type, each electrical installation must be fully documented and recorded to
ensure that it has the visibility and understanding of the larger Facilities and IT teams and their
consultants.
Details are to be provided in relation to ongoing and pro-active monitoring of each facility. Based on
this, it is intended that the monitoring of all facilities is standardised as specified to ensure that APAM
Facilities staff know what is being monitored and how it is being monitored. IT and Facilities staff will
approve details of the monitoring system during planning and implementation activities.
The project responsible for the implementation of the facility into the Airport Precinct must ensure that
details of all assets are properly recorded and captured. Asset capturing of equipment and systems
deployed into the facility should be included and incorporated with existing asset capturing and
management regimes, and reviewed by IT Facilities by the planning and implementation teams.
The project implementing the facility should ensure that drawings fully describing the new space, how
this incorporates into other spaces, including how all facilities interconnect should be updated and/or
provided and if feasible, incorporated in the Airport mapping systems, including location information
for each facility on the mapping system. The final layout map will be approved by APAM, as would
any subsequent additions.
As built drawings for each facility shall be provided to APAM. The following is the minimum
documentation that must be provided for approval during the design and construction stages and in
“as-constructed” versions prior to hand over:
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Document type Concept
design stage
Schematic
design stage
Final design
stage
As constructed
Dimensioned GA Plan X X X X
Containment plan X X X
Long and short Section X X X
3 D Views X
Elevation on each wall X X
Power Single Line Diagram X X X X
Communications
interconnection diagram
X X X X
Fibre core connections and
allocations
X X
Cable Lengths X X
Data sheets for all
equipment
X X
Connection and installation
details
X X
UPS manual X
Battery data sheet X X
Battery limit diagram X X X X
BMS interface diagram X X X
SCADA interface diagram X X
Fire services plan X X X X
Security services plan
(EACS) (CCTV)
X X X X
Schedule of finishes X X
Operation and Maintenance
Manual
X
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7 OPERATIONAL PHILOSOPHY
Melbourne Airport’s Low Voltage (LV) network comprises multiple HV/LV substations distributed
around the airport to service various load centres. These substations operate at 22kV with
transformers stepping the voltage down to 400V.
Three main terminal high voltage substations; Sub 1 (Terminals 2 and 3), Sub 100 (Terminal 1) and
Sub 200 (Terminal 4) include essential bus (mission critical loads such as life safety, security and
aviation operations) and non-essential bus (non-critical loads).
The essential bus is supplied with backup generators in case of mains failure;
Sub 1 and Sub 100 backup generation consist of diesel generators which operate in island mode during mains failure (and briefly in parallel during restoration of load to mains supply).
Sub 200 generators (tri-generation plant) are designed to run either in island mode (for backup power supply) or in parallel with the mains.
During mains failure, the PLC load management system will shed all loads, and then incrementally
stage essential loads on as generator power is available. During mains return the generators
synchronise to mains for a seamless transfer.
Within the Terminal Precinct, HV substations are configured with an Essential HV-LV arrangement
and Non-Essential HV-LV arrangement that can be bus-tied at either HV or LV for operational
requirements. The substations are sized so that during bus-tied arrangement they cannot be
overloaded in an N-1 configuration.
Switching between LV essential and non-essential mains switchboards are also performed through
make-before-break switching procedures. Make before Break switching is only performed by APAM
HV operators. Three pole transfer switches are employed. All switching is carried out by APAM or
APAM’s approved facility manager with an approved switching method statement. Provision for HMI /
remote switching facilities is to be considered during design development. This procedure results in
the need for higher fault rated main switchboards (100kA for 1 second).
The overall design philosophy is that the airport must continue to operate under mains failure
conditions. It is accepted that this operation will be under reduced standards. To this end the following
loads must be connected to an essential circuit:
All life safety services (FDCIE; control rooms; fireman’s lifts; smoke extraction fans; staircase
pressurisation fans; etc.)
All emergency and EXIT lighting.
50% of all common area lighting.
All apron services.
All baggage handling services.
All air handling services including toilet extraction systems.
Small power connections to loads such as ticketing equipment
UPS supplies, including internal and external bypass circuits.
All cooling equipment for control rooms and ITS rooms.
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All CASA and Border Protection DB’s.
Hearing augmentation equipment (if not on UPS circuits)
The following loads must be connected to a UPS circuit:
All ITS Room circuits except lighting and HVAC.
All SCADA equipment.
All HVAC, MSB and MSSB controls.
All BMS equipment.
All EACS equipment.
All Wi-Fi equipment
Apron lighting
All DAS equipment
All PID equipment
All security scanning equipment
Metering equipment and infrastructure
The Airport requires energy usage to be comprehensively metered and to this end two site wide
metering systems are deployed. The first carries out revenue metering for energy cost recovery while
the second provides APAM staff the ability to check usage, balance energy accounting, and
determine usage by major load groups. All loads are to be metered in one or more ways, including:
Revenue metering (for onward billing).
Check metering
Energy metering for tuning and efficiency purposes.
Detailed Metering requirements are set out in this document and the various specialist technical
specifications.
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8 ELECTRICAL SUPPLY
8.1 General
Electrical supply shall be derived from the local APAM substation and associated main LV
switchboard (MSB).
8.2 Supply Arrangement
The electrical supply will be:
400V, 3 phase and neutral, 50Hz, a.c (+10% to -6% tolerance).
230V, 1 phase and neutral, 50Hz, a.c (+10% to -6% tolerance).
8.3 Load Rating
To match maximum transformer rating within connected substation.
8.3.1 Spare Capacity
Minimum of 25% spare capacity.
8.4 Fault Rating
It is the Designer’s responsibility to determine the fault levels for the purposes of specifying the
appropriate electrical equipment and system capability.
The prospective fault level shall be based on APAM requirement to parallel transformers during the
‘make before break’ switching operation.
8.5 Supply Quality
8.5.1 Power Factor
The minimum system power factor at the common point of coupling shall be no less than 0.9 lag.
8.5.2 Harmonics
Harmonics within the LV reticulation system shall be limited to a total harmonic distortion THD(v) of
5%. This shall be as measured at the relevant substation LV incomer.
Designers shall include provision on the main LV switchboard for connection of active harmonic
power conditioners.
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8.5.3 Load Balance
The electrical load on the LV reticulation system shall be balanced across all three phases of the
electrical installation in accordance with the Electricity Distribution Code.
The current in each phase of a three phase electrical installation shall not deviate from the average of
the three phase currents by more than 5%.
8.6 Metering
Energy metering shall be provided in accordance with the APAM Smart Metering Design Standard.
Three types of metering are required:
1. Revenue metering
2. Energy monitoring
3. Check metering
Refer to details set out in the Metering Chapter in this document.
8.7 Load Shedding
The intent of the load staging scheme is that, in the event of a supply outage, site essential loads can
be supplied from the on-site generation as the generation is brought up to full output. In the case,
essential loads most critical to life safety and airport operations will be reinstated first. Load staging
will then progressively reconnect lower priority essential loads, until the maximum amount of essential
load is supplied by the on-site generation.
The load priority designed within the LV reticulation system shall be in accordance with the Table 1
listed in the APAM Load Staging Priority Order document.
All projects with new essential load requirements shall engage Systems Insight to review and update
the Load Staging Priorities in conjunction with APAM HV.
8.8 Surge Protection
Electronic surge protection devices (SPD) shall be installed in the LV electrical system to ensure
safety of people, protection of equipment and continuity of supply.
SPDs shall be installed near to the origin of the installation or in the main LV switchboard. Additional
SPDs may be necessary to protect sensitive equipment and external services which have a high risk
of lightning strike. These secondary SPDs shall be coordinated with the primary SPD.
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8.9 Electro-Magnetic Compatibility (EMC)
The electromagnetic environment surrounding the LV installation is particularly challenging in that the
airport is surrounded by radio, radar and various fixed and mobile transmitters.
AS/NZS 61000 does not identify a specific category for airports. LV equipment supplied shall have an
electromagnetic compatibility level suitable for a location Class 6 (as defined by AS/NZS 61000.2.5)
with the added requirement that the following will be in close proximity:
Broadcast transmitters located within 100 m.
Audio and hearing aid transmitters in the immediate vicinity.
Powerful mobile transmitters (both handheld and aircraft based).
Wi-Fi access points.
Radar transmitters within 1.5 Km.
Various LV electrical mains cables
Substation within 100 m.
On-site standby generation.
.
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9 SERVICE MAINS
9.1 General
Cable reticulation of mains cables shall be approved by APAM and shall assess the following factors
in selecting the most appropriate design solution:
access, including access to all connection points for control functions
future proofing
cable size
voltage drop and anticipated prospective fault levels
protection against mechanical and fire damage
influence and impact of other elements
9.2 Mains Cabling
9.2.1 Essential
Cables shall be stranded insulated copper conductors.
Insulation is 0.6/1kV XLPE, minimum X-90 grade.
Essential mains cabling shall comply with the requirements for WS52W classification.
9.2.2 Non-Essential
Cables shall be stranded insulated copper conductors.
Insulation is 0.6/1kV XLPE, minimum X-90 grade.
9.3 Cable Reticulation
9.3.1 Cable Trays
For all non-underground cable routes consisting of multiple mains and sub-mains cables shall be
installed on heavy duty cable trays or ladders. Any reference to cable trays shall equally apply to
cable ladders.
Cable trays shall be perforated steel and hot dipped galvanised, have purpose made tees, bends etc.,
and be from the same manufacturer. These shall be sized to cater for the required cable runs, with an
allowance of 25% spare space for future cabling.
Cable trays shall be appropriately earthed.
Cable trays shall be designed to meet WS52W classification where supporting cables of this
classification.
Where cable trays carry other than electrical cables and conduits, the required separation distances
or physical isolation shall be provided. Cable trays shall provide the necessary segregation from other
services.
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Where exposed to the outside environment, cable trays shall be provided with covers to provide
additional protection to cables.
Any vermin or bird proofing shall have appropriate hinged access gates with locks at appropriate
centres to enable maintenance access.
Cable trays shall be run in such a manner as to follow the structural members of building. Tee-offs
shall be implemented in a manner that has minimum visual impact on the building or facility in which
they are installed.
The height and disposition of cable tray runs shall give due consideration to safe and easy
accessibility by ladder, preferably located so access can occur without impact to public, occupied or
tenancy areas.
Cables shall be neatly installed on cable trays, utilising proprietary straps and fixings. Cable spacing
shall be in accordance with AS 3008 and de-rating shall be avoided. A 25% spare capacity shall be
provided.
Segregation of cable systems is an important design issue that needs to be carefully considered to
ensure the correct de-rating factors are applied during cable sizing.
Suitable cable tray and ladder supports shall be installed to manufacturer’s recommendations and
instructions, and shall adequately carry the anticipated cables load for the present and future, with
minimum deflection.
9.3.2 Underground
Service mains installed underground shall have the route identified by suitable markers. In addition,
suitable “as-built” drawings shall be provided to accurately record locations in 3D, as well as access
points, change of direction, electrical elements, pits, jointing boxes.
The philosophy for underground cable route marking and identification shall follow the arrangements
detailed in the following standards;
AS/NZS 3000.
Mains cables installed underground shall be enclosed in conduit, for mechanical protection, from the
point of supply to the Main LV Switchboard. Conduit shall be “weather set” at the Point of Attachment
and securely saddled as required by AS/NZS 3000.
Cables run underground shall comprise single core double insulated cable, enclosed in heavy duty
rigid UPVC conduit of 150mm minimum diameter, suitably sealed to prevent ingress of water.
Suitable pits (with covers) shall be installed to assist with installation of mains cables. These shall be
suitably sealed, drained and where possible located above water collection points. Pits shall be
interconnected and accessed by means of appropriate heavy duty UPVC conduits.
Pits are required to address a number of practical site conditions, which include the following:
suitable and accessible LV pits, with a type and dimensions to Civil design for specified
minimum bend radius.
maximum spacing between pits to suit pulling tension of the cable types and size
bell-mouthed ducts
lid classification to AS/NZS 3996 based on trafficability requirements and location
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removable lids with the aid of special tools
load rating of multiple lids to AS 3902
defining confined space - where on entry to a pit, the head and shoulders of a person may
pass below the upper level of the pit or ground level.
9.3.3 Diverse Paths
Essential and non-essential cables shall be segregated and reticulated via completely diverse paths
up to the point of termination / equipment location, so that adequate security of supply for critical
supplies is provided.
As a general rule a minimum horizontal separation distance of 2m shall be provided. In instances
such as service tunnels, which have a reduced width, then where possible the following “diagonally
opposed” philosophy will be implemented. Where this is not possible due to other services, then high
and low level reticulation routes are to be used to maximise separation distances.
Figure 4 - Service Tunnel Diverse Pathways
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10 PROTECTION & DISCRIMINATION
10.1 Prospective Short Circuit Current (PSCC)
To determine the required fault capability of switchboards and associated equipment Designers shall
determine the prospective fault levels at the required switchboard locations.
It is the Designer’s responsibility to determine the fault levels for the purposes of specifying the
appropriate electrical equipment and system capability.
For new works. Designers shall provide working calculations to APAM to demonstrate that the
appropriate equipment and switchgear has been specified. Calculations shall be made at all required
switchboard locations (including mechanical services switchboards and others, as may be required).
In this regard, documented data in the form of either calculations or measurement of both maximum
and minimum symmetrical three-phase fault and phase-to-earth fault levels shall be provided.
Where a design is connected to existing circuitry/installation a recalculation of all fault levels for all
affected parts is required.
10.2 Protection
10.2.1 Air Circuit Breakers
Air circuit breakers (ACBs) shall be used on all circuits with a load rating greater than 800Amps.
All ACBs shall be provided with fully adjustable electronic trip units providing the following functions
as a minimum:
Current Setting (Long Time) – Ir,
Tripping Delay (Long Time) – tr,
Pick-up (Short Time) – Isd,
Tripping Delay (Short Time) – tsd,
Pick-up (Instantaneous) – Ii.
All ACBs shall be fully withdrawable
10.2.2 Moulded Case Circuit Breakers
Moulded case circuit breakers (MCCBs) shall be used on all circuits with a load rating between
100Amps and 800Amps.
All MCCBs shall be provided with fully adjustable electronic trip units providing the following functions as a minimum:
Current Setting (Long Time) – Ir,
Tripping Delay (Long Time) – tr,
Pick-up (Short Time) – Isd,
Tripping Delay (Short Time) – tsd,
Pick-up (Instantaneous) – Ii.
All Essential MCCBs shall be fully withdrawable.
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10.2.3 Miniature Circuit Breakers
Miniature circuit breakers (MCBs) shall be used on all circuits with a load rating less than 100Amps.
MCB minimum breaking capacity shall be => 10kA
MCBs shall be DIN-T type
MCBs shall provide the option for integral MCB/RCD functionality, with RCD trip sensitivity of 30mA or
100mA depending on application.
10.2.4 Cascade Protection
Cascade protection is the use of the current limiting capacity characteristics of an upstream circuit
breaker to permit installation of lower-rated and therefore lower-cost circuit breakers downstream.
Cascading can only be used as part of the design when supported by manufacturer’s laboratory tests
and circuit breaker cascade protection tables. Circuit breakers must be from the same manufacturer
and selected in accordance with the cascade tables.
The use of a protective device possessing a breaking capacity less than the prospective short-circuit
current at its installation point is permitted as long as another device is installed upstream with at least
the necessary breaking capacity.
In this case, the characteristics of the two devices must be coordinated in such a way that the energy
let through by the upstream device is not more than that which can be withstood by the downstream
device and the cables protected by these devices without damage.
10.3 Discrimination
The design philosophy shall provide full energy discrimination of all circuit protective devices (CPD) in
series with one another.
The technique of circuit breaker protection coordination that is dependent on the characteristics of the
CPD as permitted by Clause 2.3.4.5 of AS/NZS 3000 must be supported by data obtained from the
manufacturer’s type testing of the devices and accepted by APAM prior to implementation.
Designers shall provide a detailed discrimination study and or sufficient working calculations and time-
current curves and such other necessary information required to demonstrate that correct
discrimination has been achieved between upstream and downstream protective devices.
10.4 Selectivity
The importance of achieving discrimination between protective devices is that selectivity is introduced
in LV system protection. Selectivity is required to ensure that, where a number of protective devices
are effectively in series, the protective device closest to a fault interrupts the circuit first, thus
minimising system disruptions.
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11 METERING
11.1 Approach
The Airport requires energy usage to be comprehensively metered and to this end two site wide
metering systems are deployed. The first carries out Tariff/Revenue metering for energy cost recovery
while the second provides APAM staff the ability to check Energy usage, balance energy accounting,
and determine usage by major load groups. All loads are to be metered in one or more ways,
including:
Tariff/Revenue metering (for onward billing). Connected to Melbourne Airports SMART
metering platform
Check metering. Connected to Melbourne Airports SCADA system.
Energy metering for HVAC tuning and energy efficiency purposes. Connected to Melbourne
Airports SCADA system.
National Construction Code (NCC/BCA) Section J compliant metering must be provided.
Revenue metering is not confined to the direct metering of tenant rented areas but is also used for
certain common areas where costs are apportioned across one or more different tenants.
Detailed Metering requirements are set out in this document and the various specialist technical
specifications. Refer to the APAM Smart Metering Design Standard.
11.1.1 LOADS
Meters are to be installed and circuits arranged so that at least the following load types can be
monitored:
Tenants
Aviation loads
APAM common use areas which are in turn to be split into the following separately metered
groups:
o Mechanical plant: cooling and air handling plant.
o Lighting
o Small power loads
o Major plant and vertical transportation
o Aero bridges
o Ground power units
11.1.2 CONNECTIONS
Each meter shall be connected to the Schneider EMCS/SCADA. The meters shall be directly
connected to the APAM LAN (Modbus over IP) or via a Link 150 gateway.
The contractor installing the meters shall obtain and assign a Modbus address to each meter and
enter an allocated IP address into the gateway or meter.
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Network cabling from the switchboard gateway to the APAM Comms rooms shall be provided by an
approved ICT contractor as part of the project.
The EMCS/SCADA software update for all new meters shall be carried out by the Airport approved
specialist software provider as part of the project.
11.1.3 TENANCIES
Tenant areas shall be designed so that all dedicated tenant services (MSSB’s; HVAC plant including
AHU’s; hydraulic plant and equipment; ventilation; refrigeration; extraction; kitchen equipment) are
supplied from Tenant switchboards located behind the Tenant meter(s). Refer to the Section
Tariff/Revenue Metering below for Tenant Metering requirements.
11.2 Check Metering
Check metering is required to be installed to:
Provide power quality monitoring at substation Main Switchboard level
Provide “tier” metering at each MSB tier (preferably via MCB mounted protection relay unit)
Provide the ability to check downstream meters at all Main Distribution switchboards and all
SDA (Supply Distribution Authority) switchboards.
11.2.1 POWER QUALITY METERS
Power quality meters are to be installed on all main substation transformer feeder circuits. Meters and
associated CT’s are to be located in or adjacent to the LV MSB’s.
Each meter shall be capable of monitoring and recording the following events:
Voltage surges
Voltage sags
Voltage spikes
Interruptions
Harmonics V
Harmonics I
Meters shall be connected to the Melbourne Airports SCADA/EMCS system
11.2.2 CHECK METERS
Digital smart meters (with local LCD back-lit display) shall be fitted to measure the circuit supplying
each Main Distribution switchboard and all SDA (Supply Distribution Authority) switchboards.
Alternatively, it is preferred that circuit breakers with integral electronic modules that provide a
metering function can be used.
These meters shall have the ability for remote access via MODBUS TCP/IP communication protocol
over Ethernet. A shuttered RJ45 outlet, together with requisite communication cabling, shall be
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provided within the meter compartment for meter connection. Suitable separation shall be maintained
between communication and power cables.
Refer to MAS-ELC-006 for further details and interfacing requirements with EMCS/SCADA.
Where available, local wireless connection within any given factory built switchboard assembly to a
local TCP/IP access node can be used. The node housing compartment shall be provided with a data
outlet as described above.
The meters shall have current inputs limited to 5 amperes and be capable of monitoring the following
parameters which shall include, but not necessarily be limited to, single and 3-phase:
volts, (V)
current, (A)
active power (kW),
apparent power (kVA)
energy (kWh)
power factor (-1 to +1),
total harmonic distortion (volts) THDvv
total harmonic distortion (current) THDii
11.3 Energy Metering
All low voltage switchboards shall incorporate digital smart meters (with local LCD back-lit display).
These shall have the ability for remote access via MODBUS TCP/IP communication protocol over
Ethernet. A shuttered RJ45 outlet, together with requisite communication cabling, shall be provided
within the meter compartment for meter connection. Where deemed suitable, provide a serial gateway
to collect signals from several meters. Suitable separation shall be maintained between
communication and power cables.
The meters shall have current inputs limited to 5 amperes and be capable of monitoring the following
parameters which shall include, but not necessarily be limited to, single and 3-phase:
volts,
current,
active power (kW),
apparent power (kVA)
reactive power (kVAR)
energy (kWh)
power factor (-1 to +1), ,
total harmonic distortion (current) THDi,
total harmonic distortion (volts) THDv,
frequency.
Suitable DIN rail mounted terminal blocks shall be provided with appropriate shorting links.
Cables for metering shall be multi-strand copper, 2.5mm² minimum cross-sectional area.
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Current transformers (CTs) shall be provided with a 5 ampere secondary and have a rated
classification of 0.5M. Both wires from each CT shall be brought to the terminal block and be
separately terminated. CT polarities shall be clearly labelled. Final bridging, or otherwise, shall be
undertaken to suit. Appropriate fuse or circuit breaker protection shall be provided.
The meters shall be mounted on hinged lockable doors in a separate enclosed compartment of the
switchboard, which shall also incorporate the terminal block to which voltage and CT wiring shall be
wired. Wiring from the terminal block to the meters shall be by means of a flexible loom.
11.4 Supply Authority – Tariff/Revenue Metering
Tariff/Revenue metering is required for new customers (e.g. tenancies) and for monitoring of aviation
energy usage (such as baggage systems and processing as these loads are audited for airline
commercial agreements). The Tariff meter / CT combination shall deliver Class 0.5 accuracy. Tariff
meters shall be NMI approved and will be free-issued by APAM and will be interfaced to Melbourne
Airports SMART metering platform. Refer to switchboard general arrangements for further
information.
Substation incoming LV feeder connections shall be equipped with revenue meters.
Check meters will be used for monitoring non-tariff metered loads for asset management purposes
and will be interfaced to the EMS / SCADA system. Refer to switchboard general arrangements for
further information.
An Agreement for electricity supply shall be undertaken between the customer and APAM. Before
commencement of works requiring a provision of new metering or alteration to existing metering the
customer’s authorised representative shall notify APAM. Metering is the responsibility of the
customer, who must contact APAM Electrical Services. In accordance with the Retail Metering Code,
customers who seek electricity retail other than APAM shall be responsible through their retailer, for
the provision, installation, commissioning, testing and maintenance of the metering equipment. In this
case, the meter supplier shall provide complete details of the proposed metering installation as part of
the permit application process.
APAM shall nominate the distribution board from which the customers supply will be taken. It is
required that the metering be installed as close as practicable to the point of supply. The customers
REC will be responsible for the provision and installation of the meter panel, the design of which shall
be submitted to APAM for approval. Meter panels must conform to AS 1795. Supplies above 90A are
required to be CT metered.
APAM may, at APAM’s discretion, nominate outgoing circuits that are required to be equipped with
metering.
11.5 NCC Section J Metering
The NCC 2019 requires that buildings over 2,500m2 must have separate energy meters with time use
data recording for mechanical services.
The meters must be connected to and interfaced with the EMS / SCADA system. This system collates
the metering data to a single monitoring system where the it can be stored, analysed and reviewed.
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All new works will therefore be required to separately meter all mechanical services and record the
data back to the EMS/SCADA system.
11.6 Mechanical Services and HVAC Metering
Metering and monitoring of the mechanical services and HVAC systems is required for building
compliance, energy apportionment and building tuning purposes.
The following systems shall be individually (or grouped) for monitoring purposes:
Chiller Plant
Boiler Plant
Cooling Tower Plant
CHW Pumps (primary, secondary and tertiary)
HTHHW Pumps (primary, secondary and tertiary)
CCW Pumps
Air Handling Units
Ventilation fans
Ancillary mechanical equipment (chemical treatment, BMS etc)
Hydraulic Services
Virtual meters shall be configured for the above systems to group consumption data as required by
APAM e.g. individual CHW pumps may be grouped into primary, secondary or tertiary.
The data provided shall be interfaced to the EMCS SCADA System as a priority.
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12 NOMENCLATURE
The format of switchboard labelling shall depict its location and function in a symbolic format (utilising
acronyms) as shown in Table 4, unless otherwise required by AS/NZS 3000.
Table 4: Switchboard Labelling
Facility Level Substation Source Type of Board Sequence No. Essential / Non-Essential
LABEL 1 LABEL 2
T3 L1 SUB-Number MSB 01 ESS / NE
T2 GF SUB-Number MDB 01 ESS / NE
T2 L1 SUB-Number SDA 02 ESS / NE
T4 MZ SUB-Number DB 04 ESS / NE
T1 L2 SUB-Number MSSB 01 ESS / NE
Labelling of switchgear is to have four levels, as indicated below;
Label 1: T3-L2-SS102
Label 2: MSB-01-ESS (larger font)
Label 3: Fed from: Source and CB number.
Label 4: Cable length
12.1 Electrical fixtures labelling
Electrical fixtures e.g. GPOs, light switches, permanently connected electrical equipment,
switchboards, circuit breakers, contactors and other electrical devices shall be labelled.
Labelling of the fixtures circuit shall follow on from that used to denote the switchboard supplying
them. The fixture shall comprise of the switchboard descriptor followed by the circuit breaker number
supplying the fixture.
Where a wall switch controls a number of luminaires, only the wall switch needs to be labelled.
Taking an example above, if a fixture is supplied from circuit breaker number 07; circuit designation
would be as follows:
DB-04-NE-07
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12.2 Cable Details labelling
Electrical cables labels shall include:
Cable origin and destination, for example: Mast DN3 Essential fed from Sub 18A Essential
Floodlight DB CB 14.
Cable size, for example: 2x4x1c 240mm2 XLPE + E etc
Provide durable traffolyte labels fitted to each core and sheath, permanently marked with numbers
and letters.
Identify cables and trefoil groups at each end with durable non-ferrous tags clipped around each cable
or trefoil group.
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13 EARTHING & BONDING
13.1 General
Earthing and bonding arrangements shall be provided in accordance with AS/NZS 3000:2018 to
perform the following functions enabling the safe operation of the electrical installation:
Enable automatic disconnection of supply in the event of a short- circuit to earth fault.
Enable automatic disconnection of supply in the event of excessive earth leakage current.
Enable equipment requiring an earth reference to function correctly through functional earth (FE) arrangements.
Equipotential bonding between extraneous conductive elements to mitigate voltage differences between exposed conductive parts of the installation.
Provide an effective and reliable low impedance fault path capable of carrying earth fault and earth leakage currents without danger or failure from thermal, electromechanical, mechanical, environmental and other external influences.
13.2 MEN Earthing System
The protective earthing system required to be installed within APAM’s facilities is to be a multiple
earthed neutral (MEN) distribution system. The MEN earthing system will be provided in accordance
with AS/NZS 3000:2007 and is the usual earthing system used in Australia.
Under the MEN system the neutral conductor of the distribution system is earthed at the source of
supply, at regular intervals throughout the system and at each electrical installation connected to the
system. Within the electrical installation, the earthing system is separated from the neutral conductor
and is arranged for the connection of the exposed conductive parts of equipment.
The MEN system as a TN-C-S system with the letters signifying-
T the distribution system is directly connected to earth at the neutral point of the supply
transformer
N the exposed conductive parts are connected to the earthed point of the distribution
system-at the MEN connection
C the neutral and protective conductor functions are combined in a single conductor (the
neutral conductor of the distribution system)
S the protective conductor function is separated from the neutral separate conductors
within the installation.
13.2.1 Protective Earthing (PE)
Fault protection by means of automatic disconnection of supply is intended to limit a prospective
touch voltage may arise between simultaneously accessible conductive parts during fault conditions.
Automatic disconnection during fault conditions is achieved by:
the provision of protective earthing (PE) in which exposed conductive parts are connected via conductors or similar medium to the earthed neutral of the distribution system; and
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in the event of a fault current or excessive earth leakage current flowing in the protective earthing system, overcurrent or earth leakage current protective devices (RCDs) operate to disconnect the affected part of the installation within the specified time and touch voltage limits.
13.2.2 Functional Earthing (FE)
Sensitive IT Equipment may require connection to a ‘clean earth’ system for purposes of correct
operation rather than the safety conditions associated with protective earthing.
In such cases functional earthing (FE) conductors are not required to be selected and installed to
withstand fault currents or to be identified in the same manner as a protective earthing conductor.
Functional earthing (FE) conductors shall be insulated from all protective earthing conductors and
shall only be connected together at the Main LV Earth Bar within the substation.
Functional earthing conductors will be provided in accordance with AS/ACIF S009
(Telecommunications Reference Conductor) and colour coded and clearly labelled to avoid the risk of
cross connection with the protective earthing system.
13.2.3 Earthing Conductor Size (csa)
The cross-sectional area (csa) of a protective earthing conductor shall be sized in accordance with
AS/NZS3000:2007 Clause 5.3.3 and will provide the following characteristics:
adequate current-carrying capacity for prospective fault currents for a time at least equal to the operating time of the associated overcurrent protective device; and
appropriate earth fault-loop impedance; and
adequate mechanical strength and resistance to external influences.
The minimum cross sectional area (csa) of a protective earthing conductor shall be in accordance
with Table 5.1 of AS/NZS 3000:2007.
The selection of copper or aluminium conductors shall be assessed in accordance with potential risks
associated with dissimilar metals and bi-metallic corrosion, especially when considering earthing
conductors for equipotential bonding purposes.
(UNCONTROLLED WHEN PRINTED) MAS-ELC-001
TECHNICAL STANDARD
13/12/2019 LOW VOLTAGE Systems 53 of 54
APPENDIX A STANDARD DRAWINGS AND DETAILS
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
GLAND PLATE
TIER E1 - SAFETY SERVICES
E1/F
TIER E2 - MDBs TIER E3 - LARGE MECHANICAL
TIER ISOL
E4/D
E4/C
E4/B
E4/A
TIER E4 - MDBs
TIER ISOL
E1/E
E1/D
E1/C
E1/B
E1/A
TIER ISOL
E2/D
E2/C
E2/B
E2/A
TIER ISOL
800
GLAND PLATE
ESSENTIALINCOMER
BUS-TIE
REVENUEMETER
ATSCONTROLLER
INCOMING CABLESCOMPARTMNET
INCOMING CABLESCOMPARTMNET
CABLEWAY
CABLEWAY
CABLEWAY
CABLEWAY
PROVISION FORFUTURE EXPANSION
FUTURE EXPANSION
GLAND PLATE GLAND PLATEGLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE
CABLEWAY
TIER N4 - LARGE MECHANICAL
N3/D
N3/C
N3/B
N3/A
TIER N3 - MDBs TIER N2 -SDA CT PANELS TIER N1 - SDA SWITCHBOARDS
TIER ISOL TIER ISOL TIER ISOL TIER ISOL
NON-ESSENTIALINCOMER
INCOMING CABLESCOMPARTMNET
REVENUEMETER
CABLEWAY
CABLEWAY
CABLEWAY
CABLEWAY
TIER N5 - LARGE AVIATION / ICT
TIER ISOL TIER ISOL
CABLEWAY
TIER N6 - LOCAL SERVICES
GLAND PLATE GLAND PLATE
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
100
500
300
900
700
1100
1300
1500
1700
2100
1900
00
200
00
400
600
800
FUTURE EXPANSION
TIER E5 - AVIATION / ICT
TIER ISOL TIER ISOL
CABLEWAY
CABLEWAY
TIER E6 - LOCAL SERVICES
GLAND PLATE GLAND PLATE
N1/E
N1/F
N1/D
N1/C
N1/B
N1/A
N5/E
N5/F
N5/D
N5/C
N5/B
N5/A
N2/E
N2/F
N2/D
N2/C
N2/B
N2/A
N4/E
N4/F
N4/D
N4/C
N4/B
N4/A
N6/E
N6/F
N6/D
N6/C
N6/B
N6/A
E3/E
E3/F
E3/D
E3/C
E3/B
E3/A
E5/E
E5/F
E5/D
E5/C
E5/B
E5/A
E6/E
E6/F
E6/D
E6/C
E6/B
E6/A
NON-ESSENTIALCOMMUNICATIONSCOMPARTMENT
ESSENTIALCOMMUNICATIONSCOMPARTMENT
INCOMINGCOMMUNICATIONSCABLES
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CLA
IM
ER
:T
his inform
ation is supplied by A
ustralia P
acific A
irports (M
elbourne) P
ty Ltd and is reproducedhere for inform
ation only. T
he inform
ation
show
n m
ust be verified for accuracy and com
pleteness by necessary investigation, site inspection and m
easurem
ent. M
elbourne A
irport ow
ns the
copyright to this draw
ing and the inform
ation contained in it. R
eproduction of, or any dealing in, this draw
ing, or the inform
ation it contains, is prohibited.
EXAMD EXAMD
F
OPTION 1 - MAIN LOW VOLTAGE SWITCHBOARD
FRONT CONNECT - GENERAL ARRANGEMENT
_AHT A23/10/2017FOR INFORMATION ONLY
_IMW B10/07/2018SWITCHBOARD COLOURS AMENDED
400 600 400 (FUTURE EXPANSION)(FUTURE EXPANSION)
15000
_IMW C06/12/2018SWITCHBOARD LAYOUT AMENDED
OPTION 1 - MAIN LV SWITCHBOARDFRONT ELEVATION
NTS
OPTION 1 - MAIN LV SWITCHBOARDPLAN VIEW
NTS
OPTION 1 - MAIN LV SWITCHBOARDSIDE ELEVATION
NTS
600 400 600 400 600 400 600 400 600 800 800 800 600 400 600 400 600 400 600 400 600 400 600 400600
_MK D26/02/2019FOR INFORMATION ONLY
_TM E27/09/2019FOR INFORMATION ONLY
_AA F22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0032
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
GLAND PLATE
E1/F
TIER E2 - MAIN DISTRIBUTION BOARDS
TIER ISOL
E4/D
E4/C
E4/B
E4/A
TIER ISOL
E1/E
E1/D
E1/C
E1/B
E1/A
TIER ISOL
E2/D
E2/C
E2/B
E2/A
TIER ISOL
800
GLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATE
ESSENTIALINCOMER
BUS-TIE
REVENUEMETER
ATSCONTROLLER
INCOMING CABLESCOMPARTMNET
INCOMING CABLESCOMPARTMNET
CABLEWAY
CABLEWAY
CABLEWAY
CABLEWAY
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
100
500
300
900
700
1100
1300
1500
1700
2100
1900
CABLEWAY
TIER N4 - LARGE MECHANICAL
N3/D
N3/C
N3/B
N3/A
TIER N3 - MAIN DISTRIBUTION BOARDS TIER N2 -SDA CT PANELS TIER N1 - SDA SWITCHBOARDS
TIER ISOL TIER ISOL TIER ISOL TIER ISOL
CABLEWAY
CABLEWAY
CABLEWAY
NON-ESSENTIALINCOMER
INCOMING CABLESCOMPARTMNET
REVENUEMETER
200
400
600
GLAND PLATE
800
GLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATE
FRONT OFBOARD
REAR OFBOARD
PROVISION FORFUTURE EXPANSION
PROVISION FORFUTURE EXPANSION
FUTURE EXPANSION
FUTURE EXPANSION
E6/E
E6/F
E6/D
E6/C
E6/B
E6/A
E5/E
E5/F
E5/D
E5/C
E5/B
E5/A
E3/E
E3/F
E3/D
E3/C
E3/B
E3/A
TIER ISOL TIER ISOL
CABLEWAY
CABLEWAY
TIER E3 - LARGE MECHANICAL TIER E4 - MAIN DISTRIBUTION BOARDS TIER E5 - AVIATION / ICT TIER E6 - LOCAL SERVICESTIER E1 - SAFETY SERVICES
N1/E
N1/F
N1/D
N1/C
N1/B
N1/A
N2/E
N2/F
N2/D
N2/C
N2/B
N2/A
N4/E
N4/F
N4/D
N4/C
N4/B
N4/A
CABLEWAY
TIER N5 - LARGE AVIATION
TIER ISOL
N5/E
N5/F
N5/D
N5/C
N5/B
N5/A
CABLEWAY
TIER N6 - LOCAL SERVICES
TIER ISOL
N6/E
N6/F
N6/D
N6/C
N6/B
N6/A
GLAND PLATE
GLAND PLATE
GLAND PLATE
GLAND PLATE
INCOMING COMMUNICATIONSCABLES
BUSBARCHAMBER
ESSENTIALCOMMUNICATIONS
COMPARTMENT
NON-ESSENTIALCOMMUNICATIONS
COMPARTMENT
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CLA
IM
ER
:T
his inform
ation is supplied by A
ustralia P
acific A
irports (M
elbourne) P
ty Ltd and is reproducedhere for inform
ation only. T
he inform
ation
show
n m
ust be verified for accuracy and com
pleteness by necessary investigation, site inspection and m
easurem
ent. M
elbourne A
irport ow
ns the
copyright to this draw
ing and the inform
ation contained in it. R
eproduction of, or any dealing in, this draw
ing, or the inform
ation it contains, is prohibited.
EXAMD EXAMD
E
A
OPTION 2 - MAIN LOW VOLTAGE SWITCHBOARD
BACK TO BACK - GENERAL ARRANGEMENT
_AHT 23/10/2017FOR INFORMATION ONLY
_IMW B10/07/2018SWITCHBOARD COLOURS AMENDED
800 800 600 400 600 400 600 400 600 400 600 400 600 400
7600
800 800
_IMW C06/12/2018SWITCHBOARD LAYOUT AMENDED
OPTION 2 - MAIN LV SWITCHBOARDFRONT ELEVATION
SCALE : NTS
OPTION 2 - MAIN LV SWITCHBOARDREAR ELEVATION
SCALE : NTS
OPTION 2 - MAIN LV SWITCHBOARDPLAN VIEW
SCALE : NTS
OPTION 2 - MAIN LV SWITCHBOARDSIDE ELEVATION
SCALE : NTS
_MK D26/02/2019FOR INFORMATION ONLY
_TM D27/09/2019FOR INFORMATION ONLY
_AA E22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0033
DENOTES CIRCUIT BREAKERLOCKED IN "ON" POSITION
LEGEND:
K KEY INTERLOCK
AUTOMATIC TRANSFER SYSTEM
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
MECHANICAL SERVICES SWITCHBOARD (MSSB)
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SUPPLY DISTRIBUTION AUTHORITY (SDA)
DISTRIBUTION BOARD (DB)
EM
MSSB
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:1. 'LARGE' DENOTES >= 250AMPS.
2. NUMBER OF TIERS PER GROUP TO SUIT THE QUANTITY OF REQUIREDOUTGOING WAYS INCLUDING 20% SPARE CAPACITY.
3. ONLY TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BE FEDDIRECTLY FROM THE MSB. TYPE A 6 METER PANEL SDA SWITCHBOARDSSHALL BE SUPPLIED FROM MDBS.
4. CURRENT RATINGS INDICATED ARE EXAMPLES ONLY AND SHOULD BESELECTED BASED ON DETAIL DESIGN REQUIREMENTS.
5. INTERFACE REQUIREMENTS WITH GENERATOR CONTROLS PLC ANDLOAD MANAGEMENT TO BE DETERMINED DURING PROJECT DESIGN.
6. ESSENTIAL SERVICES CIRCUIT BREAKERS TO BE MOTORISED ANDINTERFACED WITH GENERATOR CONTROL PLC IN LINE WITHGENERATOR LOAD MANAGEMENT STRATEGY.
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
BHS - BAGGAGE HANDLING SYSTEM
GPU - GROUND POWER UNIT
MCCB - MOULDED CASE CIRCUIT BREAKER
ACB - AIR CIRCUIT BREAKER
AHF - ACTIVE HARMONIC FILTER
PFC - POWER FACTOR CORRECTION
L&P - LIGHT & POWER
SP - SURGE PROTECTION
RM
K K
K
2MVA22kV/433V
ACB3200AN/C
2MVA22kV/433V
RM
ACB3200A
N/C
BUS-TIE3200A
N/O
MAIN LOW VOLTAGE SWITCHBOARD
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N4LARGE MECHANICAL
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
TIER N2SDA CT PANELS
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
REFER TO TYPICAL SDA SWITCHBOARDSCHEMATIC DRAWING AD26125
REFER TO TYPICAL SDA CT PANELSCHEMATIC DRAWING AD26125
TIER N1SDA SWITCHBOARDS
2000:5
APAM EMCS NETWORKSMART METER PLATFORM RM
2000:5
APAM EMCS NETWORKSMART METER PLATFORM
TIER N3MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
PFC
MCCB
400AxxxA
AHF
MCCB
250AxxxA
SUBSTATIONL&P DB
MCCB
400AxxxA
SP
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER N6LOCAL SERVICES
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
MMMMM APAM EMCSNETWORK
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
ICT
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N5LARGE AVIATION / ICT
M
CONTINUEDBELOW
MAIN LOW VOLTAGE SWITCHBOARD
CONTINUEDABOVE
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB MCCB
160AxxxA
MCCB
160AxxxA
ALL LIFE SAFETY SERVICES TIER ISOLATOR TO BE LOCKED 'ON'
TIER E1SAFETY SERVICES
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E2MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E3LARGE MECHANICAL
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E4MAINDISTRIBUTIONBOARDS
M M M
MCCB
400AxxxA
ICT
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E5AVIATION / ICT
MCCB MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER E6LOCAL SERVICES
MCCB
PFC AHF
SUBSTATIONL&P DB
SP
M M
MCCB
630A630A
M
CIRCUIT BREAKER WITHBUILT-IN METER FUNCTIONALITY
M
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
400A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
M M M M M M M M M M M M M M M MM M M M M M M M M M
MOTORISED CIRCUIT BREAKER(WITHDRAWABLE)
M
M
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
E
_AHT A
MAIN LOW VOLTAGE SWITCHBOARD
SINGLE LINE DIAGRAM
23/10/2017
SINGLE LINE DIAGRAM UPDATED_IMW B06/12/2018
FOR INFORMATION ONLY _MK C26/02/2019
FOR INFORMATION ONLY _TM D27/09/2019
_AA E22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0034
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
MDB-XXX-XXX
INCOMER
GLAND PLATEGLAND PLATE
CABLEWAY
CABLEWAY
GLAND PLATE
N1/D
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
GLAND PLATEGLAND PLATE
CABLEWAY
CABLEWAY
GLAND PLATE
N1/E
N1/B
N1/F
N1/C N1/H
CT METER PANEL
MDB-XXX-XXX
E1/FE1/A
E1/GE1/B
E1/HE1/C
N1/G
NON-ESSENTIALCOMMUNICATIONSCOMPARTMENT
N1/A
INCOMER
E1/D
E1/E
NON-ESSENTIALCOMMUNICATIONSCOMPARTMENT
CT METER PANEL
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
E
_AHT A
MAIN DISTRIBUTION SWITCHBOARD (MDB)
GENERAL ARANGEMENT
23/10/2017
_IMW B10/07/2018SWITCHBOARD COLOURS AMENDED
MAIN DISTRIBUTION SWITCHBOARD (MDB)(NON-ESSENTIAL)
FRONT ELEVATIONNTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(ESSENTIAL)
FRONT ELEVATIONNTS
400 600 600 400 NOM 600 400 600 600 400 NOM 600
399.7298 600.1305 600 400
NOM
2200
NOM 2000
NOM
2200
NOM 2000
_IMW C06/12/2018SWITCHBOARD LAYOUT AMENDED
MAIN DISTRIBUTION SWITCHBOARD (MDB)(NON-ESSENTIAL)
PLAN VIEWNTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(ESSENTIAL)PLAN VIEW
NTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(ESSENTIAL)
SIDE ELEVATIONNTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(NON-ESSENTIAL)SIDE ELEVATION
NTS
_MK D26/02/2019FOR INFORMATION ONLY
_TM E27/09/2019FOR INFORMATION ONLY
_AA F22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0035
MAIN DISTRIBUTION BOARD (MDB)(ESSENTIAL)
MAIN DISTRIBUTION BOARD (MDB)(NON-ESSENTIAL)
LEGEND:
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
DISTRIBUTION BOARD (DB)
EM
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
M APAM EMCS NETWORK M APAM EMCS NETWORK
MAINISOLATOR
630A
MAINISOLATOR
630A
MCCB160A
20% EQUIPPEDSPARES
20% EQUIPPEDSPARES
MCCB160A
MCCB160A
MCCB160A
MCCB250A
MCCB200A
MCCB160A
MCCB200A
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB SDASWITCHBOARD
TYPE A
SDA CTMETERPANEL
(<=250A)
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB MSSB ICT
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
MCCB - MOULDED CASE CIRCUIT BREAKER
1. COMPOSITION/QUANTITY OF SWITCHBOARDS SUPPLIED FROM THE MDBSHALL SUIT THE REQUIREMENTS AT THE MDB LOCATION.
2. ONLY TYPE A 6 METER PANEL SDA SWITCHBOARDS SHALL BE FED FROMTHE MDB. TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BESUPPLIED FROM THE MSB.
RM
MCCB160A 160A
MCCB MCCB160A
MCCB160A
MCCB200A
MCCB200A
MCCB160A
MCCB200A
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
D
_AHT A
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SINGLE LINE DIAGRAM
23/10/2017
_IMW B06/12/2018SINGLE LINE DIAGRAM UPDATED
FOR INFORMATION ONLY _MK C26/02/2019
FOR INFORMATION ONLY TM C27/09/2019
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0036
MAIN SWITCHPOWERDISTRIBUTION
METERING
MAIN SWITCHPOWERDISTRIBUTION
METERING
POWERDISTRIBUTION
METERING
TENANT #1 TENANT #2
TENANT #3 TENANT #4
TENANT #5 TENANT #6
TENANT #1 TENANT #2 TENANT #3 TENANT #4
TENANT #5 TENANT #6 TENANT #7 TENANT #8
TENANT #9 TENANT #10 TENANT #11 TENANT #12
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
D
_AHT A
SDA SWITCHBOARD TYPE A & TYPE B
GENERAL ARRANGEMENT
23/10/2017
NOM
1400
NOM
600
100
NOM
2100
NOM 1000NOM 450 NOM 1800
NOM
600
100
NOM
2100
TYPE A SDA SWITCHBOARDFRONT ELEVATION
NTS
SDA SWITCHBOARDSIDE ELEVATION
NTS
TYPE A SDA SWITCHBOARDFRONT ELEVATION
(EXTERNAL DOORS NOT SHOWN)NTS
TYPE B SDA SWITCHBOARDFRONT ELEVATION
(EXTERNAL DOORS NOT SHOWN)NTS
TYPE B SDA SWITCHBOARDFRONT ELEVATION
NTS
_IMW B06/12/2018SWITCHBOARD LAYOUT AMENDED
_TM C27/09/2019SWITCHBOARD LAYOUT AMENDED
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0037
SDA SWITCHBOARDTYPE A - 6 METER SDA MAIN
SWITCH
TENANT #1 TENANT #2 TENANT #3 TENANT #4 TENANT #5
SDA SWITCHBOARDTYPE B - 12 METER SDA MAIN
SWITCH
TENANT #1 TENANT #2 TENANT #3 TENANT #4 TENANT #5 TENANT #6 TENANT #7 TENANT #8 TENANT #9 TENANT #10 TENANT #11 TENANT #12TENANT #6
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
MCCB63A
MCCB63A
ISOL400A
MCCB63A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
ISOL200A
MCCB63A
LEGEND:ISOLATOR
CIRCUIT BREAKER
CURRENT TRANSFORMER (CT)
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
ABBREVIATIONS:
RM
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
FROM MDB FROM MSB
MCCB - MOULDED CASE CIRCUIT BREAKER
1. SDA CT METER PANEL ISOLATOR RATING TO MATCH THE TENANCY DB TYPE.REFER TO MAS-ELC-001 SECTION 6.6.1.
2. SDA CT METER PANELS RATED > 200A SHALL BE FED DIRECTLY FROM THE MSB.SDA CT METER PANELS <= 200A SHALL BE FED FROM MDBS.
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
MCCB80A
RM
APAM EMCSNETWORKSMART METERPLATFORM
SDA CT METER PANEL
FROM MSB or MDB
MAIN ISOLATOR100A to 400A
TO TENANCY DBTYPES 3 to 5
DISTRIBUTION BOARD (DB)
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
D
_AHT A23/10/2017
SDA SWITCHBOARDS AND SDA CT METER PANEL
SINGLE LINE DIAGRAM
_IMW B06/12/2018SINGLE LINE DIAGRAM UPDATED
FOR INFORMATION ONLY _MK C26/02/2019
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0038
MSB
1
A
2
3
MDB - NON-ESSMDB - ESS UPS BATT
APRONLIGHTINGUPS DB SUB DB
PFC AHF
-
-
1
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
MSB
MDB - NON-ESSMDB - ESSAHFPFC
APRONLIGHTINGUPS DB
SUB DB
UPS BATT
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
A
MSBAHF
SCALE 1 : 50OPTION 1 - MAIN SWITCHBOARD ROOM LAYOUT
SCALESECTION
1 : 502
SCALESECTION
1 : 503
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CLA
IM
ER
:T
his inform
ation is supplied by A
ustralia P
acific A
irports (M
elbourne) P
ty Ltd and is reproducedhere for inform
ation only. T
he inform
ation
show
n m
ust be verified for accuracy and com
pleteness by necessary investigation, site inspection and m
easurem
ent. M
elbourne A
irport ow
ns the
copyright to this draw
ing and the inform
ation contained in it. R
eproduction of, or any dealing in, this draw
ing, or the inform
ation it contains, is prohibited.
EXAMD EXAMD
D
_ A
OPTION 1 - MAIN LOW VOLTAGE SWITCHBOARD
FRONT CONNECT - ROOM LAYOUT
SD 23/10/2017
- -
1000 15000 1000
800
1600
1000
600
1200
_IMW B06/12/2018SWITCHBOARD LAYOUT AMENDED
17000
600
600
_MK C26/02/2019FOR INFORMATION ONLY
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0039
MSB
2
B3
4
-
-
MDB - NON-ESSMDB - ESS AHF PFC
SUBDB
APRONLTGUPD DB
UPS
BATT
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
2
MSB
DBMDB - NON-ESSMDB - ESS
AHFPFC
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
MSB
DB
B
AHF
BATT UPS
SCALE 1 : 50OPTION 2 - MAIN SWITCHBOARD ROOM LAYOUT
SCALESECTION
1 : 503
SCALESECTION
1 : 504
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
C
_ ASD
OPTION 2 - MAIN LOW VOLTAGE SWITCHBOARD
BACK TO BACK - ROOM LAYOUT
23/10/2017
--
(T.P. VERSION)
76001000
1600
800
800
1600
600
600
2200
1300
2200
1300
1000
600
1000
600
600
_IMW B06/12/2018SWITCHBOARD LAYOUT AMENDED
600
_AA C22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0040
MDB
MDB
3
C3
4
N/ESS
ESS
-
SDA
SWITCH
BOAR
D
-
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
3
N/ESS
SDAESS
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
C
SDA N/ESSESS
SCALE 1 : 50MDB & SDA ROOM LAYOUT
NOT TO SCALEMDB & SDA 3D VIEW
SCALESECTION
1 : 503
SCALESECTION
1 : 504
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_ ASD
MDB & SDA
SWITCHROOM LAYOUT
23/10/2017
- -
600
600
600
600
600
600900600
2200
1300
2100
1400
2100
1400
2200
1300
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0041
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
ESS N/ESS
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
D
N/ESS
5
E7
8
ESS N/ESS
-
-
SDA CTMETERPANEL
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
ESS N/ESS SDA CTMETERPANEL
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
E
MDB MDB
4
D3
4
ESS N/ESS
-
-
SCALE 1 : 50MDB CUPBOARD LAYOUT
NOT TO SCALEMDB CUPBOARD 3D VIEW
SCALESECTION
1 : 50-3
SCALESECTION
1 : 50-4
SCALE 1 : 50FINAL DB CUPBOARD LAYOUT
NOT TO SCALEFINAL DB 3D VIEW
SCALESECTION
1 : 50-7
SCALESECTION
1 : 50-8
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
C
_ ASD
MDB ESS & N/ESS & FINAL DB
CUPBOARD LAYOUTS
23/10/2017
550 550 550
2000 390 2000
1600
3000
2200
600 700
2200
800
2700
2000
1620 380190
2700
1000
1000
1200
600
600
GENERAL NOTES:1. MDB/SDA/DB ROOMS ARE PREFERRED TO CUPBOARDS. WHERE BOARDS
ARE TO BE INSTALLED WITHIN CUPBOARDS, LOCATION TO BE REVIEWEDSO NOT ACCESSED OFF MAIN CIRCULATION PATHS.
NOTE:ENSURE CLEAR OPENING FOR DB DOORS. NOINFRINGEMENT WITH CUPBOARD DOORS/HINGES
NOTE:ENSURE CLEAR OPENING FOR MDB DOORS. NOINFRINGEMENT WITH CUPBOARD DOORS/HINGES
FOR INFORMATION ONLY _ BTM 29/09/2019
_AA C22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0042
DENOTES CIRCUIT BREAKERLOCKED IN "ON" POSITION
LEGEND:
K KEY INTERLOCK
AUTOMATIC TRANSFER SYSTEM
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
MECHANICAL SERVICES SWITCHBOARD (MSSB)
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SUPPLY DISTRIBUTION AUTHORITY (SDA)
DISTRIBUTION BOARD (DB)
EM
MSSB
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:1. 'LARGE' DENOTES >= 250AMPS.
2. NUMBER OF TIERS PER GROUP TO SUIT THE QUANTITY OF REQUIREDOUTGOING WAYS INCLUDING 20% SPARE CAPACITY.
3. ONLY TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BE FEDDIRECTLY FROM THE MSB. TYPE A 6 METER PANEL SDA SWITCHBOARDSSHALL BE SUPPLIED FROM MDBS.
4. CURRENT RATINGS INDICATED ARE EXAMPLES ONLY AND SHOULD BESELECTED BASED ON DETAIL DESIGN REQUIREMENTS.
5. INTERFACE REQUIREMENTS WITH GENERATOR CONTROLS PLC ANDLOAD MANAGEMENT TO BE DETERMINED DURING PROJECT DESIGN.
6. ESSENTIAL SERVICES CIRCUIT BREAKERS TO BE MOTORISED ANDINTERFACED WITH GENERATOR CONTROL PLC IN LINE WITHGENERATOR LOAD MANAGEMENT STRATEGY.
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
BHS - BAGGAGE HANDLING SYSTEM
GPU - GROUND POWER UNIT
MCCB - MOULDED CASE CIRCUIT BREAKER
ACB - AIR CIRCUIT BREAKER
AHF - ACTIVE HARMONIC FILTER
PFC - POWER FACTOR CORRECTION
L&P - LIGHT & POWER
SP - SURGE PROTECTION
RM
K K
K
2MVA22kV/433V
ACB3200AN/C
2MVA22kV/433V
RM
ACB3200A
N/C
MAIN LOW VOLTAGE SWITCHBOARD
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N4LARGE MECHANICAL
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
TIER N2SDA CT PANELS
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
REFER TO TYPICAL SDA SWITCHBOARDSCHEMATIC DRAWING AD26125
REFER TO TYPICAL SDA CT PANELSCHEMATIC DRAWING AD26125
TIER N1SDA SWITCHBOARDS
2000:5
APAM EMCS NETWORKSMART METER PLATFORM RM
2000:5
APAM EMCS NETWORKSMART METER PLATFORM
TIER N3MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
PFC
MCCB
400AxxxA
AHF
MCCB
250AxxxA
SUBSTATIONL&P DB
MCCB
400AxxxA
SP
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER N6LOCAL SERVICES
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
MMMMM APAM EMCSNETWORK
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
ICT
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N5LARGE AVIATION / ICT
M
CONTINUEDBELOW
MAIN LOW VOLTAGE SWITCHBOARD
CONTINUEDABOVE
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB MCCB
160AxxxA
MCCB
160AxxxA
ALL LIFE SAFETY SERVICES TIER ISOLATOR TO BE LOCKED 'ON'
TIER E1SAFETY SERVICES
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E2MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E3LARGE MECHANICAL
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E4MAINDISTRIBUTIONBOARDS
M M M
MCCB
400AxxxA
ICT
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E5AVIATION / ICT
MCCB MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER E6LOCAL SERVICES
MCCB
PFC AHF
SUBSTATIONL&P DB
SP
M M
MCCB
630A630A
M
CIRCUIT BREAKER WITHBUILT-IN METER FUNCTIONALITY
M
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
400A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
M M M M M M M M M M M M M M M MM M M M M M M M M M
MOTORISED CIRCUIT BREAKER(WITHDRAWABLE)
M
BUS-TIE3200A
N/OM
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
MAIN LOW VOLTAGE SWITCHBOARD SINGLE LINE
DIAGRAM WITH NETWORK COMMUNICATIONS
CONNECTIONS OVERLAY
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0043
EDMI Smart Meter(Supplied by APAM)
MCCBs (Typical):Schneider NSX fitted withPowerTag NSX Meters
Si-D
Wireless toSmartlinkGateway (Upto 20 devices)DIN-Railed
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
TierDisplay
(By Smart MeterContractor)
(By Smart MeterContractor)
MasterpactMTZ ACB(with Ethernet)
FDM128
Si-D
Tier DisplayTierDisplay
TierDisplay
TierDisplay
FDM128 FDM128TierDisplay
TierDisplay
TierDisplay
TierDisplay
TierDisplay
TierDisplay
FDM128
TierDisplay
FDM128 FDM128
APAM EMCS NETWORK
ConneXium8Port Switch
FDM128
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Si-D
FDM128 FDM128Si-D
FDM128 FDM128FDM128
Ethernet
EthernetInterfaceIFE IFE IFE IFE IFE IFE
IFE IFE IFE IFE IFE IFE
MasterpactMTZ ACB(with Ethernet)
ULP, Typical
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
MasterpactMTZ ACB(with Ethernet)
ConneXium8Port Switch
APAM EMS NETWORK
ConneXium8Port Switch
ConneXium8Port Switch
EDMI Smart Meter(Supplied by APAM)
MAIN DISTRIBUTION BOARD (MDB)(ESSENTIAL)
MAIN DISTRIBUTION BOARD (MDB)(NON-ESSENTIAL)
LEGEND:
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
DISTRIBUTION BOARD (DB)
EM
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
M APAM EMCS NETWORK M APAM EMCS NETWORK
MAINISOLATOR
630A
MAINISOLATOR
630A
MCCB160A
20% EQUIPPEDSPARES
20% EQUIPPEDSPARES
MCCB160A
MCCB160A
MCCB160A
MCCB250A
MCCB200A
MCCB160A
MCCB200A
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB SDASWITCHBOARD
TYPE A
SDA CTMETERPANEL
(<=250A)
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB MSSB ICT
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
MCCB - MOULDED CASE CIRCUIT BREAKER
1. COMPOSITION/QUANTITY OF SWITCHBOARDS SUPPLIED FROM THE MDBSHALL SUIT THE REQUIREMENTS AT THE MDB LOCATION.
2. ONLY TYPE A 6 METER PANEL SDA SWITCHBOARDS SHALL BE FED FROMTHE MDB. TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BESUPPLIED FROM THE MSB.
RM
MCCB160A 160A
MCCB MCCB160A
MCCB160A
MCCB200A
MCCB200A
MCCB160A
MCCB200A
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SINGLE LINE DIAGRAM WITH NETWORK
COMMUNICATIONS CONNECTIONS OVERLAY
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0044
(By Smart MeterContractor)
Moxa MB3170
APAM ECMSNETWORK
MCCBs (Typical):Schneider NSX fitted withPowerTag NSX Meters
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Si-D
ConneXium4Port Switch
Serial toModbus TCPEthernet
(By Smart MeterContractor)
APAM EMSNETWORK
MCCBs (Typical):Schneider NSX fitted withPowerTag NSX Meters
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Si-D
ConneXium4Port Switch
Serial toModbus TCP
Ethernet Moxa MB3170
MAINSWITCH
TENANT #3 TENANT #4 TENANT #5
SDA SWITCHBOARDTYPE B - 12 METER SDA MAIN
SWITCH
TENANT #1 TENANT #2 TENANT #3 TENANT #4 TENANT #5 TENANT #6 TENANT #7 TENANT #8 TENANT #9 TENANT #10 TENANT #11 TENANT #12TENANT #6
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
MCCB63A
MCCB63A
ISOL400A
MCCB63A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
ISOL200A
MCCB63A
LEGEND:ISOLATOR
CIRCUIT BREAKER
CURRENT TRANSFORMER (CT)
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
ABBREVIATIONS:
RM
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
FROM MDB FROM MSB
MCCB - MOULDED CASE CIRCUIT BREAKER
1. SDA CT METER PANEL ISOLATOR RATING TO MATCH THE TENANCY DB TYPE.REFER TO MAS-ELC-001 SECTION 6.6.1.
2. SDA CT METER PANELS RATED > 200A SHALL BE FED DIRECTLY FROM THE MSB.SDA CT METER PANELS <= 200A SHALL BE FED FROM MDBS.
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
MCCB80A
RM
APAM EMCSNETWORKSMART METERPLATFORM
SDA CT METER PANEL
FROM MSB or MDB
MAIN ISOLATOR100A to 400A
TO TENANCY DBTYPES 3 to 5
DISTRIBUTION BOARD (DB)
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
ILE
$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
SDA SWITCHBOARDS AND SDA CT METER PANEL
SINGLE LINE DIAGRAM WITH NETWORK
COMMUNICATIONS CONNECTIONS OVERLAY
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0045
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
MoxaMB3170
Serial toModbusTCP
APAM EMCSNETWORK
EthernetModbus ModbusMoxa
MB3170
Serial toModbusTCP
Ethernet
(By Smart Meter Contractor)
MoxaMB3170
Serial toModbusTCP
APAM EMCSNETWORK
Ethernet
APAM EMCSNETWORK
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
MAIN LOW VOLTAGE SWITCHBOARD NETWORK
CONNECTION BLOCK DIAGRAM
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0046
Incoming SupplyRevenue MeterEDMI Smart Meter(Provided by APAM)
Tier Outgoing WaysSchneider NSX
Schneider ConneXiumSwitches (Din Railed)
Tier MeterDisplaySchneiderFDM128
Wireless Smartlink GatewaysSchneider Si-D (Din Railed)
MSBNON-ESSENTIAL
TIERS
Ethernet
APAM - MSB Network Connection Diagram
TYPICAL NON-ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
MSB ESSENTIALTIERS
Main Non-Essential ACBSchneider MasterpactMTZ2
Schneider ConneXiumSwitches (Din Railed)
APAM EMS NETWORK
Main Essential ACBSchneider MasterpactMTZ2
Main Bus-Tie ACBSchneider MasterpactMTZ2
APAM EMS NETWORK
Ethernet
IFE EthernetInterface
Tier Outgoing WaysSchneider NSX
Tier MeterDisplaySchneiderFDM128
TYPICAL NON-ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
IFE EthernetInterface
Tier Outgoing WaysSchneider NSX
Tier MeterDisplaySchneiderFDM128
TYPICAL ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
IFE EthernetInterface
Tier Outgoing WaysSchneider NSX
Tier MeterDisplaySchneiderFDM128
TYPICAL ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
IFE EthernetInterface
Incoming SupplyRevenue MeterEDMI Smart Meter(Provided by APAM)
(UNCONTROLLED WHEN PRINTED) MAS-ELC-001
TECHNICAL STANDARD
13/12/2019 LOW VOLTAGE Systems 54 of 54
GHD
Level 8, 180 Lonsdale Street, Melbourne, VIC 3000 T:+61 3 8687 8000 F:+61 3 8687 8111 E: [email protected]
© GHD 2019
This document is and shall remain the property of GHD. The document may only be used for the purpose for which it was commissioned and in accordance with the Terms of Engagement for the commission. Unauthorised use of this document in any form whatsoever is prohibited.
C:\Users\dmurray1\Dropbox\APAM DRAFT Standards\MAS-ELC-001_Design Standard_LV Systems_Rev 2 APAM Approved.docx
Document Status
Version 3
Revision
Author Reviewer Approved for Issue
Name Signature Name Signature Date
00 DC C Berriman CB* D Collins DC* May 17
01 DC C Berriman CB* D Collins DC* Jan 18
02 TP C Berriman CB* C Berriman CB* Sep 19
03 TP C Berriman CB* C Berriman CB* Dec 19