T HR TE 21001 ST Telecommunications Equipment …ST Telecommunications Equipment Rooms T HR TE 21001...
Transcript of T HR TE 21001 ST Telecommunications Equipment …ST Telecommunications Equipment Rooms T HR TE 21001...
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Telecommunications Equipment Rooms
T HR TE 21001 ST
Standard
Version 1.0 Issued Date: 17 March 2014 Effective Date: 17 March 2014
Important Warning
This document is one of a set of standards developed solely and specifically for use on the rail network owned or managed by the NSW Government and its agencies. It is not suitable for any other purpose. You must not use or adapt it or rely upon it in any way unless you are authorised in writing to do so by a relevant NSW Government agency.
If this document forms part of a contract with, or is a condition of approval by, a NSW Government agency, use of the document is subject to the terms of the contract or approval.
This document may not be current. Current standards are available for download from the Asset Standards Authority website at www.asa.transport.nsw.gov.au.
© State of NSW through Transport for NSW
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© State of NSW through Transport for NSW
Standard Approval Owner: T. Payne, Lead Telecommunications Engineer Authorised by: D. Spiteri, Chief Engineer Approved by: G. Bradshaw, Principal Manager Network Standards and Services on behalf of the
Asset Standards Authority Configuration Control Board
Document Control Version Summary of Change 1.0 Initial release
For queries regarding this document
www.asa.transport.nsw.gov.au
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Preface The Asset Standards Authority (ASA) develops, controls, maintains, and publishes standards
and documentation for transport assets for New South Wales, using expertise from the
engineering functions of the ASA and industry.
The Asset Standards Authority publications include the network and asset standards for NSW
Rail Assets. Currently ASA publications include RailCorp engineering standards that were
applicable to the Transport for New South Wales (TfNSW) rail assets as at 30 June 2013.
This standard supersedes RailCorp standard ESM 107 Telecommunications Equipment Rooms
and is a first issue by the Asset Standards Authority. The changes to previous content in
ESM 107 include the following:
replacement of RailCorp organisation roles and processes with those applicable to the
current ASA organisational context
minor amendments and clarification to content
conversion of the standard to ASA format and style
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Table of contents
1. Introduction .......................................................................................................................................6
2. Purpose ..............................................................................................................................................6
2.1 Scope..................................................................................................................................................6 2.2 Application.........................................................................................................................................6
3. Version history ..................................................................................................................................7
4. References .........................................................................................................................................7
5. Terms and definitions.......................................................................................................................8
6. General ...............................................................................................................................................9
7. Design report requirements .............................................................................................................9
8. Categories..........................................................................................................................................9
9. Dimensioning of the communications room................................................................................10
10. Dimensioning of ac and dc distribution boards ..........................................................................10
10.1 AC distribution ................................................................................................................................10 10.2 DC distribution ................................................................................................................................11
11. Construction ....................................................................................................................................11
11.1 Building code...................................................................................................................................11 11.2 Freestanding telecommunications buildings...............................................................................11 11.3 Building wall / floor .........................................................................................................................12 11.4 Dust and floor paint ........................................................................................................................12 11.5 Room security .................................................................................................................................12 11.6 Lighting ............................................................................................................................................12 11.7 Rodent proofing ..............................................................................................................................12
12. Location restrictions.......................................................................................................................13
12.1 EPR zone..........................................................................................................................................13 12.2 Catch points.....................................................................................................................................13 12.3 Flood levels......................................................................................................................................13 12.4 Locating underground station telecommunications equipment rooms at ground
level ..................................................................................................................................................13
13. Access..............................................................................................................................................13
13.1 Access times ...................................................................................................................................13 13.2 Vehicular access .............................................................................................................................13 13.3 Personnel access............................................................................................................................14
14. Environment ....................................................................................................................................14
15. Fire protection .................................................................................................................................14
16. Amenities .........................................................................................................................................15
17. Security ............................................................................................................................................15
17.1 Locks ................................................................................................................................................15 17.2 Electronic security systems...........................................................................................................15
18. Earthing............................................................................................................................................15
19. Rack layout and construction........................................................................................................16
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19.1 Minimum working space ................................................................................................................16 19.2 Clearance and pathways ................................................................................................................16 19.3 Equipment suites beyond 6000 mm..............................................................................................16
20. Cables...............................................................................................................................................17
20.1 Cable entry.......................................................................................................................................17 20.2 Cable.................................................................................................................................................18
21. Main distribution frame verticals (and copper cable terminations)...........................................18
22. Equipment decommissioning and removal..................................................................................19
23. Third party access...........................................................................................................................19
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1. Introduction
Telecommunications equipment rooms are required to house both the current and future
telecommunications requirements of the TfNSW rail network. New construction, extensions and
upgrades of existing telecommunications equipment rooms, or installation within a building
space, need to conform to a standard. This document defines the standard for these facilities.
2. Purpose
The purpose of this document is to provide a standard for the design and construction of TfNSW
rail telecommunications equipment rooms.
2.1 Scope
The scope of this document is:
to define the standard for the various categories of telecommunications equipment rooms
to set the diversity requirements for telecommunications equipment rooms
to provide a detailed link to all updated standards associated with telecommunications
equipment rooms
to provide access / security standard
to provide the facilities for asset management / renewals
2.2 Application
All new railway stations shall be provided with a telecommunications equipment room in
accordance with this standard. Such a room need not be on the platform or within the structure
of other station buildings, but shall be as closely as practicable associated with the station.
This is in addition to any station services equipment room and carrier room provided for that
station. A new telecommunications equipment room may not be required in some
circumstances if there is an existing telecommunications equipment room within 500 m from the
proposed new rail train station facility. This is subject to the approval of the Lead Engineer
Telecommunications that the existing equipment room meets all the conditions of the above
scope.
All upgrade works on new or existing telecommunications equipment rooms shall be in
accordance with this standard.
Certain clauses of this standard apply to the ongoing management of telecommunications
equipment rooms.
This standard does not apply to rooms dedicated to station services equipment such as public
address, help point, CCTV systems or public carrier equipment rooms and facilities.
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Building construction shall be in accordance with Australian Building Codes Board, National
Construction Code Series 2012 which shall take precedence over the requirements of this
Standard.
All electrical works shall be in accordance with AS/NZS 3000 Electrical installations (Wiring
Rules) which shall take precedence over the requirements of this Standard.
Telecommunications cabling shall be in accordance with AS/ACIF S009 Installation
requirements for customer cabling (Wiring Rules) which shall take precedence over this
standard.
3. Version history
Initial release.
4. References
Australian and International Standards
AS/ACIF S0008 Requirements for customer cabling products
AS/ACIF S0009 Installation requirements for customer cabling (Wiring Rules)
AS 2201 Intruder Alarm Systems
AS2293 Emergency escape lighting and exit signs
AS 2444 Portable fire extinguishers and fire blankets – Selection and location
AS/NZS 3000 Electrical installations (known as Australian/New Zealand Wiring Rules)
AS/NZS 3015 Electrical installations – Extra-low voltage d.c. power supplies and service
earthing within public telecommunications networks
AS/NZS 3835 Earth Potential Rise – Protection of Telecommunications network users,
personnel and plant – Code of practice
Building Code of Australia. Volumes One and Two. Building Code of Australia Board HB 29-
2007/Amdt 1-2010 Communications cabling manual - Module 2: Communications cabling
handbook
Transport standards as published on the ASA website
EP 12 10 00 20 SP Low Voltage Distribution Earthing
EP 12 10 00 22 SP Buildings and Structures Under Overhead Lines
RSS-004 Signalling and Control Room Facilities (RailCorp Security Standard)
SPC 511 Boundary Fences
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SPG 0705 Signalling Construction Specifications) Construction of Cable Routes and Associated
Civil Works
SPG 0708 Small Buildings and Location Cases
TC 00 1317 01 TR -Design Guidelines for High Availability Power Supply Systems
T HR TE 01001 ST Communications Outdoor Cabling Standard
T HR TE 21002 ST Communications Earthing and Surge Suppression Standard
5. Terms and definitions
The following definitions apply in this document:
carrier room a telecommunications equipment room for the use of public telecommunications
carriers
station services equipment room a room dedicated to station services such as the public
address system, help points, station lan, passenger information system, ticketing system, CCTV
etc
telecommunications equipment room a room or building with the primary purpose of housing
telecommunications infrastructure
ac alternating current
ACMA Australian Communications and Media Authority
AEO Authorised Engineering Organisation
ASA Asset Standards Authority
ATM asynchronous transfer mode
ATS automatic transfer switch
BD building distributor
dc direct current
DDF digital distribution frame
EPR earth potential rise
GPO general purpose 10A rated socket outlet (general purpose outlet)
HV high voltage
IDF intermediate distribution frame
IP internet protocol
LV low voltage
MDF main distribution frame
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O&M operations and maintenance
OCDN operations critical data network
PVC polyvinyl chloride
RTOC Rail Technology Operations Centre
TfNSW Transport for NSW
UPS uninterruptible power supply
6. General
Requirements of this standard must be adhered to unless noted as non-mandatory or unless
approval is gained via a request to the ASA for concession to this standard.
All works shall be ACMA compliant.
7. Design report requirements
A design report shall be produced for the design of telecommunications rooms. This design
report must address, as a minimum:
cable entry arrangements
room and equipment layout (includes proposed and future equipment racks)
ac and dc power arrangements
The design report shall be submitted for review and approval by the AEO, prior to construction.
8. Categories
Telecommunications equipment rooms shall be categorised, by the Lead Engineer
Telecommunications by way of their criticality to the TfNSW Rail telecommunications networks
as follows:
Network criticality
network core
major network edge
minor network edge
network access
The default categorisation shall be by way of TfNSW’s OCDN network categorisation of sites.
Network criticality categorisation shall also take into consideration the importance or location of
the room. (e.g. a major switching centre for radio networks is considered to be a Network Core).
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Room size
Rooms shall be further categorised as small, medium or large dependant on the floor space
within the room.
small room – a room with 12 m² or less internal floor space.
medium room – a room with more 12 m² and less than 22 m² internal floor space
large room – a room with more than 22 m² floor space.
Cable termination capacity
minor cable centre – a room where external cable terminations would not exceed 500
copper pairs or 300 fibre cores
significant cable centre – a room other than a minor cable centre
9. Dimensioning of the communications room
The dimensioning of the communications room and the building construction type (double brick,
pre-cast concrete etc) shall take into consideration all likely applications of the room over at
least the following ten years. This shall include cabling, data network, telephony, radio and
transmission requirements.
To facilitate the temporary simultaneous operation of old and new systems during the
installation, testing and commissioning phases, telecommunications equipment rooms shall also
have a minimum of two rack spaces reserved for replacement of existing equipment.
10. Dimensioning of ac and dc distribution boards
AC and dc distribution boards shall be dimensioned in accordance with the planned loads and
the physical size of the room.
10.1 AC distribution
AC distribution shall allow for:
the known load plus having adequate capacity to fully equip the room. The typical
equipment to be powered includes air conditioning, battery chargers, UPS equipment,
lighting and double GPOs. The planned ac power capacity shall be based on the
assumption that at least one double GPO of 3 A 240 V load, will be provided per
unequipped rack space, to allow for test equipment to be connected for servicing each
suite. All the double GPOs shall be installed at a minimum height of 300 mm above floor
level and they shall not be used for powering equipment.
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at core or edge sites, the main ac distribution board shall be fed from an ATS, that
automatically switches between two separate ac supplies (rail/rail or rail/council or
council/council)
This ac supply shall be 3-phase at network core and major edge sites, to allow the loads
to be balanced more effectively
provision shall be made in the ac distribution for the future connection of ac surge
suppression devices for individual circuits as required.
10.2 DC distribution
DC distribution shall allow for:
the known load and number of circuits for known or expected equipment to be installed
minimum of four circuit breaker positions per other unequipped rack space
If the room contains two or more suites (e.g. at network core and major edge sites), the dc
distribution of the room shall be provided by suite distribution sub-boards.
11. Construction
11.1 Building code
Telecommunications equipment rooms shall be built to the standards laid down in the Building
Code of Australia. They shall also conform to local council requirements.
11.2 Freestanding telecommunications buildings
Freestanding telecommunications buildings shall be built in accordance with the following
clauses of SPG 0708 Small Buildings and Location Cases:
1 General
2.1 Common Requirements -General
2.2.3 240 volt Electrical Services
2.5 Construction Aspects
2.6 Site and Site Works
3 Small Brick Buildings
Note that Battery Rooms & Air Compressor Rooms are not required
and Fire Protection is to be in accordance with Clause 14 of this
Standard.)
or
4 Pre-fabricated Concrete Bungalows (as applicable)
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In addition, note that:
Additional security fencing is only required where the site is
not already fenced to an equivalent standard.
Plumbing is not allowed in Telecommunications Equipment
Rooms, unless for a fire prevention system for that room.
11.3 Building wall / floor
The walls and floor shall be suitably strong to support cable ladders / trays and equipment
mounting, using standard masonry anchors.
The floor shall be painted with concrete sealing paint, it shall not use linoleum or vinyl tiles.
The floor loading shall include an allowance of 50% additional footprint, adjacent to the existing
or proposed power supply, with similar loading to the existing or proposed power supply.
Core sites shall be provided with computer flooring.
11.4 Dust and floor paint
The room shall be designed to minimise dust ingress. The floor paint used shall reduce dust,
avoid trip hazards, and reduce electrical hazards.
11.5 Room security
The room shall be secure and shall conform to the requirements of Section 17. All remote sites
which are located off the rail corridor shall have double skin steel door and a security grill door.
A key shall be required to lock the steel skin door. Padlocks shall not be used.
All security fencings for the rooms shall comply with SPC 511 Boundary Fences.
11.6 Lighting
Suitably bright lighting shall be provided. Adequate overhead lighting shall be installed
throughout the telecommunications equipment room to enable installation and maintenance
staff to operate without the use of extra portable lighting.
See also SPG 0708 Small Buildings and Location Cases.
11.7 Rodent proofing
Closed doors and other openings (in particular, cable entries), shall be sealed to prevent the
entry of rats, spiders and snakes.
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12. Location restrictions
12.1 EPR zone
Telecommunications equipment rooms shall not be located within an EPR hazard zone
(i.e. where the EPR may exceed 430 V ac under power system fault conditions).
12.2 Catch points
Telecommunications equipment rooms shall not be positioned where there is a possibility that
the room may be damaged by a train derailed by catch points
12.3 Flood levels
The room shall be positioned in such a manner that the floor of the room is at least 100 mm
above the 1 in 100 year flood level.
12.4 Locating underground station telecommunications equipment rooms at ground level
Due to the high risk of dust contamination at platform or track levels, all new
telecommunications equipment rooms in underground stations shall be positioned to ground
level.
As train brake dust finds its way into everything, where there is an opportunity, and where it is
feasible, existing platform or track level telecommunications equipment rooms at underground
stations shall be re-located.
13. Access
13.1 Access times
Telecommunications equipment rooms shall be located to allow twenty-four hour a day seven
days a week (24 x 7) access for both personnel and vehicles.
13.2 Vehicular access
Vehicular access is required to all freestanding communications buildings. Where necessary, a
suitable low maintenance access road shall be designed by an AEO and built to the relevant
transport standards. Such access shall not require the crossing of railway tracks at other than
approved level crossings.
Sufficient space is to be provided within the compound for parking and turning a vehicle, and
unloading of equipment.
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13.3 Personnel access
External doors to buildings shall open outwards onto a safe, level surface. There shall be a
concrete landing outside the door.
Where the telecommunications equipment room is in close proximity to the track, a fixed fence
or handrail must be installed to prevent accidental stepping into the danger zone.
Wherever practicable, sites are to be situated so that entry to the rail corridor is not necessary.
For example, sites should be fenced with the gate opening to outside the rail corridor.
Permanent lighting is to be provided for walk ways unless deemed unnecessary via a request to
the ASA for concession to this standard due to the nature of the environment and terrain.
Access shall not require the crossing of railway tracks at other than approved level crossings.
14. Environment
Room environment (with active equipment) shall be maintained between 18 °C and 24 °C and
between 30% and 55% relative humility. The building construction shall minimise the need for
air conditioning to meet this requirement. All new buildings or building extensions shall
incorporate double roofs with ventilation for heat dissipation, and other features, such as sun-
shields, to reduce the need for air-conditioning, in the architectural design / construction.
15. Fire protection
All sites shall have fire protection, in the form of approved fire monitoring and alarm facilities,
which shall be in accordance with any relevant requirements of the Building Code of Australia.
The protection for each site must be individually approved by the AEO.
Portable fire extinguishers shall be selected and installed in accordance with the requirements
of AS 2444 Portable fire extinguishers and fire blankets – Selection and location.
Illuminated emergency exit signage to Standard AS2293 Emergency escape lighting and exit
signs shall be provided where required by the Building Code of Australia and in all rooms with
greater than 20 m² floor area.
Generally gas fire suppression systems are not required in telecommunications equipment
rooms.
Where gas fire suppression is determined to be required due to the criticality of the site, the
system shall:
be designed in accordance with ATS 5587.7 Guidelines – Fire Safety Engineering Part 7:
Detection, activation and suppression
use inert non-toxic gaseous flooding agents
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have appropriate warnings and evacuation plan signposted immediately inside and
outside the room
have full documentation loaded onto the relevant Asset Management System
16. Amenities
In general, all storage cabinets, kitchen and toilet facilities and other amenities shall be outside
the telecommunications equipment room.
All first aid should be managed by the individuals working in the telecommunications equipment
rooms, that is, personnel should take a first aid kit with them, or have one in the vehicle.
Chairs or stools are to be provided for staff visiting the room.
Fold down benches or tables are to be provided to support laptop computers and test
equipment.
17. Security
17.1 Locks
A 'Falcon' series lock (specific lock to be nominated by the AEO) is to be fitted to the door,
unless remote or electronic access control is deemed mandatory by other relevant codes or
standards.
17.2 Electronic security systems
Any security system installed shall comply with the requirements of the appropriate regulatory
authority and the appropriate parts of AS 2201 Intruder alarm systems.
Security systems may include:
intruder detection -as a minimum there should be door contacts on all doors and remote
sensing unit to bring the alarms back to the RTOC.
access control – with remote door lock activation.
security cameras – IP zoom /tilt (rev) based cameras at all locations.
a combination of the above – perimeter alarm shall be considered for remote sites.
18. Earthing
Earthing and lightning protection shall be installed at all communications rooms according to the
provisions outlined in T HR TE 00109 ST Communications Earthing and Surge Suppression.
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19. Rack layout and construction
19.1 Minimum working space
A minimum working space of 1000 mm (preferably 1200 mm) at the front of the BD shall be
provided in telecommunications equipment rooms requiring regular operation and maintenance
activity.
The minimum size for the equipment room shall consider at least the ten year requirement of
the communications equipment room. See Section 8 Categories.
The layout used for the equipment racks shall provide for adequate rear access for technicians
to work comfortably. As a minimum, a clearance of 900 mm between each suite of racks shall
be provided.
19.2 Clearance and pathways
Equipment racks, which require operation and maintenance access, shall have a minimum
900 mm clearance. If operation and maintenance access is required at the rear or either side,
then these also require 900 mm minimum clearance.
Where an equipment manufacturer or vendor specifies a greater clearance than 900 mm due to
the special nature of the equipment, then the specified clearance shall be allowed for.
Where the depth of the equipment rack or the equipment installed in the rack is greater than
600 mm, a further 300 mm clearance greater than the maximum depth of equipment is required.
Shelves are to be used for heavy or awkward equipment. Supporting heavy equipment with rack
screws only is discouraged.
Where equipment is mounted on a sliding tray or drawer for ease of operation and
maintenance, a clearance of 750 mm greater than the maximum extended depth from the rack
shall be allowed for.
A pathway required for emergency egress from an equipment room shall have a minimum
1000 mm clear width at all points.
The side of a rack may be positioned within 900 mm of a wall provided the space between the
rack and the wall is not required for emergency egress or for equipment access.
19.3 Equipment suites beyond 6000 mm
Equipment suites shall not extend beyond 6000 mm unless a break of at least 900 mm is
provided at no more than 6000 mm intervals.
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20. Cables
20.1 Cable entry
20.1.1 Diverse entries
Diverse cable entries are required for core and major edge telecommunications equipment
rooms to provide trunk optical fibre path diversity.
Diversity shall be achieved by cable entries at opposite ends of the wall on which the main
distribution frame is mounted.
Diverse cable entries are not mandatory for local area distribution of optical fibre or copper
communications service cables or for copper main trunk cables. However, diverse entries for
these cables should be considered if required for effective management of cable distribution or
where it is possible that the bulk of cables terminating at the location would congest a single
entry making work difficult.
20.1.2 Cable entry capacity
Long term requirements shall be considered when dimensioning cable entries. 100% spare
capacity shall be allowed over the 10 year projected requirement.
Table 1shows minimum requirements for cable entries. An equivalent capacity in other sizes of
conduits may be used to facilitate, for example, blowing fibre in a continuous conduit run.
Table 1 - minimum requirements for cable entries
Type of Site Minimum Total Conduits (**)
Minimum Required Configuration
Network Core 20 x 100 mm Two diverse entries
Major Edge 16 x 100 mm Two diverse entries
Minor Edge 12 x 100 mm Two diverse entries OR where diverse entries are impractical, a single entry with minimum unprotected (unduplicated) cable route.
Access 4 x 100 mm Single entry
** This minimum requirement may not be sufficient for the
requirements for a particular site. The proposed site capacity
should consider the requirement of future technology / equipment
and upgrade of assets. There shall be spare conduits at all times.
Each site shall have the approval of the AEO.
Note that in the case of diverse entries, the total conduit count
should be divided between the entries to suit the particular
installation. For example, the second entry may have less conduits
than the first (main) entry, where it is not proposed to use the
second entry for copper cable distribution
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20.1.3 Cable entry pits
All cable entry pits shall have minimum internal dimensions of
1500 mm x 1500 mm x 1200 mm deep for a main telecommunications equipment room
(network core and major network edge) access pit
or
1200 mm x 1200 mm x 1200 mm deep for a minor telecommunications equipment room
(network access and minor network edge)
Each cable entry pit will have an adjoining optical fibre slack coil storage pit of
1200 mm x 700 mm x 700 mm deep. A minor cable entry may be appropriate for the diverse
entry where a second entry is not proposed for copper cable distribution.
Design of communications cable entry arrangements shall be coordinated with Signals and
Electrical designs wherever combined service cable routes or buildings are used.
Communications cable pits shall not be shared with LV (including Signals) or HV services pits.
20.2 Cable
All telecommunications cabling shall meet the requirements of T HR TE 00102 ST
Communication Outdoor Cabling and AS/ACIF S008 Requirements for customer cabling
products.
All cables shall be installed in accordance with AS/ACIF S009 Installation requirements for
customer cabling.
All communications cables installed in underground locations shall have low smoke, low toxicity,
halogen free and flame-retardant sheaths.
21. Main distribution frame verticals (and copper cable terminations)
All telecommunications equipment rooms shall be fitted with an appropriately sized main
distribution frame (MDF). Any space reserved for future MDF installation shall not be used for
other purposes unless a request to the ASA for concession to this standard is obtained. In
general, it is advisable to install the whole MDF framework in one installation task. This will
provide adequate design for future jumper wires field or link cables / cable leads management.
All core and edge telecommunications equipment rooms shall be fitted with an appropriately
sized DDF for E1 services etc. Access telecommunications equipment rooms may be fitted with
a DDF where necessary.
For copper cable termination, a minimum of four verticals will be required, with at least two of
them to be installed initially, one each of the 55 way Krone vertical for local and equipment
cables.
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22. Equipment decommissioning and removal
All unused equipment shall be removed or recovered from site within a reasonable time from
the date of its de-commissioning. Any time longer than three months for this is considered
unreasonable without a strategic reason for a longer hold time before removal.
Scope for removal and recovery shall include:
the equipment
interconnecting links between all sites
repair and repaint all damaged floor, wall or cable trays
all cabling associated with the equipment to power supplies, earth points, MDF, optical
connections, alarm & supervisory connections, etc
any equipment racking or cable tray no longer required for other purposes
update of site and cable records associated with the equipment and its cabling
update of floor plans and rack layout drawings and services records
23. Third party access
Generally, third party equipment is not allowed in telecommunications equipment rooms unless
required to support the TfNSW telecommunications network and approved by the Lead
Telecommunications Engineer.
© State of NSW through Transport for NSW