55-SAMSS-004

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Primary contact: Cox, Robert Lee on 966-3-8733341

Copyright©Saudi Aramco 2011. All rights reserved.

Materials System Specification

55-SAMSS-004 27 April 2011

Modular Building for ESP Equipment

Document Responsibility: Electric Submersible Pump Standards Committee

Saudi Aramco DeskTop Standards

Table of Contents

1 Scope............................................................. 2

2 Conflicts and Deviations................................. 2

3 References..................................................... 2

4 Definitions...................................................... 3

5 General.......................................................... 3

6 Service Conditions......................................... 4

7 Construction Features.................................... 5

8 Equipment Layout.......................................... 7

9 HVAC System................................................ 7

10 Electrical Service........................................... 8

11 Grounding/Bonding........................................ 9

12 Lighting........................................................ 10

13 Cable Entrance............................................ 10

14 Shipping....................................................... 11 Appendix A........................................................... 12

Document Responsibility: Electric Submersible Pump Standards Committee 55-SAMSS-004

Issue Date: 27 April 2011

Next Planned Update: 27 April 2016 Modular Building for ESP Equipment

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1 Scope

This Specification defines the mandatory requirements for a pre-fabricated,

transportable building containing all necessary equipment to power and control an

Electrical Submersible Pump (ESP) system in crude oil service. The building will be

installed outdoors in an offshore or onshore environment.

2 Conflicts and Deviations

2.1 If there are any conflicts between this specification and associated purchasing,

project or engineering documents, this specification shall take precedence.

2.2 Direct all requests to deviate from this specification in writing to the Company

or Buyer Representative, who shall follow internal company waiver procedure.

2.3 The designation “Commentary” is used to label a sub-paragraph that contains

comments that are explanatory or advisory. These comments are not mandatory,

except to the extent that they explain mandatory requirements contained in this

specification.

3 References

The following is a summary of all the documents which have been mentioned within

this specification. Full compliance to these documents is not necessarily required.

Whether the entire document or specific part(s) of these documents are applicable have

been identified throughout this specification.

3.1 Saudi Aramco References

Saudi Aramco Materials System Specification

16-SAMSS-518 Low Voltage Panelboards

3.2 Industry Codes and Standards

American Institute of Steel Construction

AISC Manual of Steel Construction

American National Standards Institute

ANSI/NFPA 70 National Electrical Code

American Welding Society

AWS D1.1 Structural Welding Code

http://standards/docs/SAMSS/PDF/16-SAMSS-518.pdf




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International Code Council (ICC)

ICC IBC International Building Code

International Electrotechnical Committee

IEC 60529 Degrees of Protection Provided by Enclosures

National Electrical Manufacturers Association

NEMA 250 Enclosures for Electrical Equipment

4 Definitions

ESP: Electric Submersible Pump.

Crude Oil Service: Directly producing crude oil or producing water in support of

crude oil production.

HVAC: Heating, Ventilating, Air-Conditioning.

Hot-dip galvanized: Meets the requirements of ASTM A123.

Corrosive Environment: Offshore, or onshore within 5 km of coastline.

Offshore: Overwater.

Onshore: On-land.

Specification: The main body of this document. Does not include the information

contained within the Appendices.

Stainless steel: Either 316 series or 317 series stainless steel material.

5 General

5.1 Words in bold font are defined in Section 4.

5.2 Whenever this specification requires compliance to a third party document

(e.g., ANSI, UL, IEC, etc.), this document shall be the edition which was in

effect on the date of the Quotation Request.

5.3 This specification shall take precedence over any referenced third party

document.

5.4 All documentation shall be in English.

5.5 All temperatures shall be in Celsius units (unless specified otherwise).




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5.6 Oil-filled equipment (e.g. transformers, switches) shall not be installed inside

the building.

5.7 The specific equipment that is expected to be installed within the building shall

be specified within the purchasing documents.

6 Service Conditions

The building shall be designed to operate continuously under the following conditions:

6.1 Ambient air temperature:

6.1.1 Maximum: 45 degrees.

6.1.2 Minimum: 0 degrees.

6.1.3 Average (over one month): 45 degrees.

6.2 Relative humidity (condensing):

6.2.1 24 hour average: 95%.

6.2.2 1 month average: 90%.

6.2.3 Maximum: 100%.

6.3 Earthquakes: None. Site Class D per IBC or ASCE 7

6.4 Electrical Area Classification: Unclassified

6.5 Sand and dust storms, fog, airborne contaminants:

6.5.1 NaCl to 300ppm. MgCl to 50ppm.

6.5.2 Dust concentrations of 1 mg/m³. 95% of dust particles are less than

20 micrometers in diameter. 50% of dust particles are less than

1.5 micrometers in diameter. Compound in dust include sodium,

magnesium, silicon and aluminum.

6.5.3 Pollutants (worst case): H2S-5 ppm, SO2-10 ppm, CO-100 ppm,

NOx-5 ppm and hydrocarbons-150 ppm.

6.5.4 For offshore installations, accumulation of wetted salt (NaCl) and

windborne seawater salt spray.




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6.6 Wind – maximum:

6.6.1 Two second gust: 32.6 m/sec (73 mph)

6.6.2 One minute withstand: 28.3 m/sec (63 mph).

6.7 Rain: Minimal. Occasional heavy rainstorms.

6.8 Directly exposed to sun.

Exception to 6.8:

Unless indicated otherwise in purchasing documents.

6.9 Altitude: Less than 1000 meters.

6.10 Corrosive Environment.

Exception to 6.10:

Unless indicated otherwise in purchasing documents.

7 Construction Features

7.1 The building shall be fabricated, and all building equipment and services

integrated at the building manufacturer‟s site.

7.2 Building dimensions and weight shall allow the building to be transported to,

and installed at the site as one complete unit without field assembly.

7.3 No windows shall be installed in the building exterior.

7.4 When installed offshore, all exterior metal hardware shall be either stainless

steel or hot-dip galvanized steel.

7.5 Building exterior shall have a minimum two hour fire rating.

7.6 Floor shall be constructed of 6.4mm (0.25 in) minimum thickness steel plate

with a finish of non-skid paint.

7.7 Outside building cladding shall be either non-metallic or pre-coated by the

cladding manufacturer to be suitable for the site environment.

7.8 Roof design shall not allow standing water or excessive accumulation of

dust/dirt. Water drainage off roof shall be controlled away from cable/raceway

entrances, personnel doors and equipment doors/panels.

7.9 Building shall be insulated and vapor protected.




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7.10 A minimum of two personnel doors shall be installed with the following

characteristics:

7.10.1 Locations shall be based upon site conditions and to minimize the

possibility of personnel being trapped inside the building.

7.10.2 Doors shall open outwards. Industrial grade automatic door closures

shall be installed.

7.10.3 Door operation from inside shall be via panic hardware.

7.11 An equipment door or removable wall panel(s) shall be provided to allow

installation or removal of all equipment (present and known future) inside the

building. Location of door and/or panel shall be based upon site conditions.

7.12 The support skid for the building shall be as follows:

7.12.1 Steel design shall be in accordance with the AISC requirements.

7.12.2 If a corrosive environment, skid shall be hot-dip galvanized after the

completion of the welding and drilling associated with the fabrication

of the skid structure. It is acceptable to drill holes in the galvanized

skid structure to attach small accessories (e.g., cable clamps) provided

the bare metal is touched-up with zinc-rich paint.

7.12.3 For a corrosive environment, stainless steel hardware shall be used

for the assembly of the complete skid and for the attachment of any

accessories.

7.12.4 Welding shall be in accordance with AWS D1.1 requirements.

A continuous fillet weld (not to exceed 3.2 mm (1/8 in)) shall be used

to seal all adjoining members.

7.12.5 Skid shall be designed to resist, without damage to associated

equipment, all loads and stresses resulting from lifting and handling.

Maximum deflection of the base during lifting and transporting shall

not exceed L/240.

7.12.6 Base shall be of the skid-type welded construction, rigidly braced with

welded cross members and integral permanent provisions for multiple

point lifting. Base shall be welded to the building fame. Jacking

facilities shall be provided for base leveling.

7.12.7 Two ground pads shall be welded to the base at diagonally-opposed

corners. Each pad shall have drilled for connection of grounding lugs

with ½ inch bolt.




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7.13 Hot-dip galvanized or stainless steel surfaces shall not be painted or coated.

7.14 Where dissimilar metals are in contact, the contact points shall be suitably

protected to prevent corrosion due to galvanic action.

8 Equipment Layout

8.1 Equipment access shall be provided per equipment manufacturers

recommendations.

8.2 Spacing shall allow equipment with hinged doors to have the door fully opened.

8.3 Devices on the exterior of the equipment/compartment doors which require

manual operation or viewing (e.g., switches, pushbuttons, displays, etc.) shall be

mounted a maximum of 1700 mm from the interior floor.

9 HVAC System

9.1 Two, 100% redundant HVAC units shall be installed. Each 100% HVAC unit

shall be completely independent (i.e., complete removal/failure of one unit will

not affect the capability of the other unit to maintain the environmental

requirements inside the building).

9.2 Shall be industrial grade split condenser/evaporator type.

9.3 Based upon the above “Site Conditions” each 100% HVAC system shall be

designed to continuously maintain the following environment conditions inside

the building:

9.3.1 Dry Bulb Temperature: 30°C

9.3.2 Relative Humidity: 50%.

9.4 Heat loading/Air-conditioning calculations shall assume all equipment (installed

and known future) is operating at 100% capacity and also include 10% extra

growth capacity.

9.5 Shall be designed to maintain a positive pressure (0.25 inches of water gauge)

inside the building after complete field installation and hook-up. A differential

pressure switch shall be provided. This switch shall incorporate an electrical

contact which will activate if the differential pressure between the outside and

the inside of the building drops below a preset level. This contact will be

connected at the site by the Buyer.

9.6 The control system shall include an automatic “alternator” system to ensure both

100% units have equal operating time.




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9.7 HVAC components shall not be installed on the roof of the building.

All outdoor serviceable components shall be maintainable from grade level.

9.8 For offshore applications, all HVAC components external to the building shall

be suitable for long-term exposure to highly corrosive seawater mist.

9.9 A thermostat shall be installed that shall be manually adjustable over the

operating range.

9.10 Main power consuming elements of the HVAC system (i.e., compressor, heater,

etc.) shall operate on three phase power; either 208 V or 480 V.

10 Electrical Service

10.1 Building electrical installation shall comply with industry standard NFPA 70

(i.e., NEC)

10.2 Buyer shall supply a 480V, 3 phase, 3 wire service to the building. This shall be

field terminated to a building manufacturer provided three phase manually

operated safety switch inside the building. Building supplier shall inform the

Buyer of the amperage requirement of this service a maximum of four weeks

after award of building order.

10.3 Building shall have an electrical distribution system with the following

characteristics:

10.3.1 A 480/208/120 V, 3 phase, 4 wire dry type distribution transformer

shall be connected to the above safety switch. Minimum rating of the

transformer shall be 100 kVA. This transformer shall be installed

inside the building.

10.3.2 The secondary of the transformer shall feed a 208/120 V, 3 phase,

4 wire distribution panel with the following characteristics:

10.3.2.1 Shall be sized to deliver the full kVA rating of the

transformer.

10.3.2.2 Branch circuits shall be resettable circuit breakers.

10.3.2.3 Panel shall be a minimum size of 24 poles.

10.3.2.4 The panel shall have a minimum of 10 spare pole spaces.

10.3.2.5 Panelboard shall meet 16-SAMSS-518.

http://standards/docs/SAMSS/PDF/16-SAMSS-518.pdf




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10.3.3 120V service receptacles shall be installed inside the building per the

following:

10.3.3.1 Receptacles shall be specification grade duplex grounding

receptacles of the NEMA 5-15R type.

10.3.3.2 Receptacles shall be mounted on the wall surface at a

nominal height of 1 meter above the interior floor.

10.3.3.3 The number of receptacles shall allow a tool with a 6 meter

cord, at any location in the building, to access a receptacle.

10.3.3.4 A maximum of three receptacles shall be installed on a

15 A branch circuit.

10.3.4 If the HVAC operates at 480V, provision for separate isolation and

circuit protection for each HVAC system shall be provided.

11 Grounding/Bonding

11.1 A minimum of one copper equipment/safety grounding bus shall be installed per

the following:

11.1.1 Shall be installed on the interior wall approximately 300 mm above the

floor and standing-off the wall surface.

11.1.2 Each end of the bus shall be connected to a green insulated copper.

11.1.3 Each conductor shall be terminated to diagonal corners of the building

external steel base frame.

11.1.4 Interior equipment grounding shall be terminated on this bus.

11.1.5 The Buyer will field connect the site safety grounding network to the

building base frame to complete the safety grounding system.

11.2 A minimum of one copper instrument grounding bus shall be installed per the

following:

11.2.1 Shall be installed on the interior wall approximately 300 mm above the

floor and standing-off the wall surface.

11.2.2 Shall be installed on stand-off insulators.

11.2.3 All instrumentation signal grounds for the internal equipment shall be

terminated to this bus.




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11.2.4 The Buyer will field connect this bus to an instrumentation grade,

isolated ground network to complete the instrumentation grounding

system.

12 Lighting

12.1 Fluorescent task lighting shall be installed per the following:

12.1.1 Provide a minimum of 500 lux on all horizontal and vertical work

surfaces and the horizontal surface of floor.

12.1.2 This lighting level shall be based upon a combined lamp lumen

depreciation and luminaire dirt depreciation of 65%.

12.1.3 Lighting shall be switched by a multiple-way switches located at each

of the man-doors indicated above.

12.2 Emergency lighting shall be provided to allow a safe exit of personnel from the

building in case of complete power loss to the building. This lighting shall

provide a minimum of 100 lux, 760 mm above floor level.

13 Cable Entrance

13.1 All necessary entrances shall be provided for the Buyer‟s field installed

electrical/instrumentation systems (i.e., cables, conduits raceways, etc.), as per

the following:

13.1.1 Shall enter/exit through the walls.

13.1.2 The manufacturer shall request the Buyer to provide details of the

Buyer installed cabling/raceways.

13.1.3 Entrance design shall allow for the environmental sealing of the cable

at the entrances, allow for ease of future cable installations and allow

for maintaining the integrity of the fire integrity of the building.

13.2 Junction boxes mounted outside the building shall meet the following

requirements:

13.2.1 Be equipped with either:

12.3.1.1 A breather and drain mechanism.

12.3.1.2 For sheet metal enclosures, the above or a 5mm hole drilled

in the bottom of the enclosure.




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13.2.2 Be certified and labeled by a third-party certification organization as

meeting the below NEMA or IP criteria.

13.2.3 If installed in a corrosive environment:

12.3.3.1 Be NEMA 250 Type 4X or IP6X per IEC 60529 with „X‟

being a numeral between „4‟ and „8‟.

12.3.3.2 Box material and external hardware such as fasteners (bolts,

screws), hinges and locking devices shall be stainless steel.

13.2.4 If not installed in a corrosive environment:

Be NEMA 250 Type 4 or IP6X per IEC 60529 with „X‟ being a

numeral between „4‟ and „8‟.

14 Shipping

Building shall be designed to be transported to, and installed at the site as one complete

unit without requiring field assembly.

Revision Summary 27 April 2011 New Saudi Aramco Materials System Specification.




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Appendix A

This is a summary of the Buyer interface responsibilities mentioned in this

specification. It is for reference purposes and should not be considered completely

accurate. Additional buyer connection will be identified within the purchasing

documents.

Connection of 480 V service to disconnect.

Connection of instrument ground to instrument bus.

Connection of equipment ground to building support structure.

Connection of differential pressure switch contact.

55-SAMSS-004

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