TABLE OF CONTENTS - Neptune Energy · The cabinet shall be executed as a complete enclosure and shall be provided with internal iron angle or channel frame work of sufficient strength

Neptune Energy Netherlands B.V.

Specification 611 rev. 7 Page 2 of 18

TABLE OF CONTENTS

1.0 INTRODUCTION ............................................................................................................................. 3

2.0 STANDARDS, CODES AND REGULATIONS ................................................................................ 4

3.0 CERTIFICATION .............................................................................................................................. 5

4.0 AREA CLASSIFICATION/ENVIRONMENT ................................................................................... 6

5.0 DRAWINGS AND SPECIFICATIONS ............................................................................................. 7

6.0 DESIGN REQUIREMENTS .............................................................................................................. 8

7.0 FABRICATION ............................................................................................................................... 13

8.0 TERMINATION ............................................................................................................................. 14

9.0 WIRING ......................................................................................................................................... 15

10.0 EARTHING .................................................................................................................................... 16

11.0 INSPECTION AND TESTING ....................................................................................................... 17

12.0 CRATING AND SHIPPING ........................................................................................................... 18



1.0 INTRODUCTION

This specification describes the minimum requirements for the assembly of an

electrical/instrumentation cabinet (out or inside room) and the fabrication of the cabinet itself.

Field cable marshalling, system power supplies and related racking, mounting and wiring

supports for installation in a system cabinet are also subject to this specification.



2.0 STANDARDS, CODES AND REGULATIONS

All equipment specified herein shall conform in design, material and performance with the latest

editions (with amendments) of the following Codes and Standards current at time of order

placement.

2.1 Dutch rules for working environment (ARBO arbeidsomstandigheden wet).

Dutch Mine Regulations 31 October 2002 (Mijnbouw Wet, staatsblad 542).

Directive 94/9/EC (ATEX 95) Equipment and protective systems intended for use in potential

explosive atmospheres.

The latest CENELEC standards.

The Regulations of “Het Nederlandse Normalisatie Instituut“ (NEN) as applicable as such but

not limited to:

NEN 1010 Safety provisions for Low Voltage Installations.

NEN-EN-50110 Operation of electrical installations

EN 50014 Electrical apparatus for potentially explosive atmospheres.

thru

EN 50020 + Exclusive EN 50021 for EExn Equipment

EN 50028 +

EN 50039

IEC 60079-10 Electrical apparatus for explosive atmosphere – part 10: Classification of

hazardous areas

IEC 60079-14 Electrical apparatus for explosive atmosphere – part 14: Electrical installations

in hazardous areas

IEC 60079-17 Electrical apparatus for explosive atmosphere – part 17: Inspection and

maintenance of electrical installations in hazardous areas

IEC 60051 Recommendations for direct acting indicating electrical measuring

instruments and their accessories

IEC 60204-1 Electrical equipment of industrial machines

IEC 60529 Classification of degrees of protection provided by enclosures

VDE 0875 Regulations for the radio interference suppression of Appliances, Machines

and Installations for rated Frequencies from 0 to 20 kc/s

EMC International Electromagnetic Compatibility

EU Certification conform European Rules, including 'CE' marking

2.2 GENERAL SPECIFICATIONS

610 General Specification for General Construction of Electrical, Instrumentation

and Telecommunication installations.

Ж 612 General Specification for Instrument Inspection, Pre-commissioning and

Commissioning

525 General Specification for Painting and Coating.

Latest revision of above referenced specifications can be found on

https://www.neptuneenergy.com/en/about-us/supply-chain/suppliers-to-neptune-energy-

netherlands-bv

https://www.neptuneenergy.com/en/about-us/supply-chain/suppliers-to-neptune-energy-netherlands-bv

https://www.neptuneenergy.com/en/about-us/supply-chain/suppliers-to-neptune-energy-netherlands-bv



3.0 CERTIFICATION

Equipment located in hazardous areas shall be certified in accordance with ATEX directive

94/9/EC. Only equipment with certification issued by the notified bodies will be accepted.



4.0 AREA CLASSIFICATION/ENVIRONMENT

The location of the plant is an offshore platform in the Dutch sector of the North Sea.

The following environmental conditions apply:

Protected area:

Area classification : non-hazard

Maximum temperature : +35 °C

Ж Daily average temperature : +20 °C

Minimum temperature : +10 °C

Relative humidity : up to 100%

Air quality : saline

Ж Degrees of Protection : IP-41

Unprotected area:

Area classification : hazard (Zone 0, 1, or 2)

Maximum temperature : +26 °C

Daily average temperature : +15 °C

Minimum temperature : -20 °C

Relative humidity : up to 100%

Air quality : saline and moist

Ж Degrees of Protection : IP-56



5.0 DRAWINGS AND SPECIFICATIONS

5.1 The following drawings shall be supplied by the system cabinet's supplier ('Supplier'), as a

minimum:

general arrangement of the panel(s)

termination diagrams, hook-up drawings, etc.

datasheets of each type of equipment installed on this panel

Bill of Material.

Ж 5.2 In general Supplier shall produce all new drawings as can be regarded practical to clarify

Installation details. These drawings shall be returned to Company's representative after

completion. All new drawings shall be formatted for AutoCAD 2006.

5.3 Supplier shall supply drawings as specified in the SDR (Supplier Document Requirements) for

the relevant specification. During the project Supplier shall keep an up-to-date record of all

changes in the installation and show these changes on the relevant drawings. Buyer shall have

access to these documents at all times.



6.0 DESIGN REQUIREMENTS

6.1 The system cabinet shall be configured in accordance with the requirements as specified herein.

However, Supplier shall be responsible for the proper working of the system.

6.2 No deviations from the requirements of this specification are allowed unless itemised in

Supplier's quotation and subsequently approved in writing.

6.3 Should any conflict occur as a result of complying with the specification, the order of

precedence shall be as follows:

this specification;

national standards.

6.4 CABINET REQUIREMENTS

The installation of wiring, piping and tubing, etc. in the cabinet(s) shall be in accordance with

industrial standard's neat and good working practice and shall be arranged such as to allow for

easy removal and/or maintenance of installed equipment and instruments.

The cabinet shall be executed as a complete enclosure and shall be provided with internal iron

angle or channel frame work of sufficient strength to support the internal system.

The cabinet shall be constructed as follows:

Outdoor installation:

The panels shall be made of 316L stainless steel plate, thickness minimum 3 mm.

Ж The carbon steel framing supports and other construction parts shall be anti-corrosion treated

and painted in accordance with Buyer’s Painting and Coating Specification (number 525, latest

edition). The enclosure classification shall be minimum IP-56.

Generally, all material shall be selected suitable for the environment conditions as described in

section 4 of this specification

Ж Indoor installation:

The panels shall be made of mild steel plate, thickness minimum 3 mm for the front plate to

receive panel mounted instruments. The panels shall be reinforced against buckling.

The enclosure classification shall be IP-41 as a minimum.

The cabinet(s) shall be provided with front and/or back access door(s) mounted on hinges. The

door(s) shall have "T" type door handles without locks.

The cabinet(s) shall be furnished with proper mounting assembly suitable for mounting in the

specified area/location. A plinth, minimum 100 mm, shall be provided for free-standing type

cabinet(s). For wall mounting type, the cabinet(s) shall be provided with the suitable mounting

brackets assembly.

The cabinet(s) shall also be provided with lifting eyes on the top of the cabinet for lifting

purposes.



Cable entries, such as MCT's (multi cable transit), Ex'd' cable glands and bulkhead connectors,

etc. for interfaces with other systems, shall also be part of this system cabinet. Buyer will advise

the size and numbers of the entries which have interfaces with Buyer's systems.

Ж Before shipment all cable entries shall be covered, providing IP-41 degree of protection.

6.5 POWER SUPPLY

Depending on the project specification, the following power supply systems are available on

the platform:

Ж Electrical supply:

a) 24V DC

b) 48V DC

c) 120V DC

d) 220V/230V AC 50 Hz

e) 380V/400V AC 50 Hz

Air supply:

Dry air with minimum/normal/maximum pressure of: 4/6/10 Barg.

Hydraulic supply:

As per project specification.

Ж For electrical services, the cabinet shall be provided with terminals to receive the required power

supplies. This power distribution system shall be furnished with a pad lockable main switch. If

required, sub-distribution by means of circuit breakers shall be incorporated. Buyer will provide

the power supply to the cabinet/panel terminals.

The cabinet shall also be provided with a service lighting fixture and socket outlet connected to

230V AC power supply. Furthermore a drawing pocket shall be installed.

Details of the power consumption of the cabinet shall be provided to enable Buyer to calculate

the required size of the power supply cables and fuses.

Ж 6.6 ELECTROMAGNETIC COMPATIBILITY (EMC)

All equipment and installations shall comply with the electromagnetic compatibility

requirements both in emission and immunity.

As a consequence the two main aspects of EMC arise:

Electromagnetic emission (Radiated or Conducted Emission)

Devices have to be designed in a way that emitting electromagnetic disturbances do not

interfere with the process control systems, operation of radio, telecommunication and other

devices in accordance with their purpose.

Electromagnetic immunity/interference (Radiated or Conducted Susceptibility)

Devices have to be designed in a way that they have adequate immunity to electromagnetic

interferences and operation in accordance with their purpose is possible.



To comply with EMC the above mentioned aspects have to be observed during the construction

of electrical, instrumentation and telecommunication installations.

Attention shall be given to:

Devices designed and constructed to fulfil the demands of EMC. No changes shall be made at

the construction these devices. As example variable speed drives.

Cables connected to these devices shall be suitable (screening) to fulfil the Electro Magnetic

Compatibility.

Connection of cables to these devices. Prescription of manufacturer has to be followed. When

cables are connected wrongly the device will no longer be Electro Magnetic Compatible.

When cables enter a device through a multi cable transit, this multi cable transit shall be

suitable to fulfil the demands of MCT.

Neptune Energy standard is Roxtec EMC sealing system.

The modules (blocks) contain a conductive foil which establishes a full 360o low transfer

impedance contact with the cable screen.

The frames shall be constructed of stainless steel to make contact with the conductive foil of

the modules.

6.7 COOLING

Cooling shall be adequate for the environment as detailed in Section 4.0. It is Supplier's

responsibility to provide heat dissipation calculations showing that the temperature inside the

cabinet does not exceed 40°C under the maximum load conditions at maximum ambient

temperature. When applicable, Supplier shall supply a forced cooling ventilation system to be

installed in the system.

6.8 SPARAGE

Wire and cable trunking and/or supporting shall have a minimum of 25% spare capacity on

completion, including known future installations.



Ж 6.9 TUBING AND FITTINGS

For all tubing and fitting connections and supporting see general specification 610 section 8.3.

All incoming and outgoing tubing shall be connected to bulkhead couplings. The bulkhead

coupling shall be tagged with tube number and service/function.

All tubing shall be of 904-L stainless steel, imperial sized (inch), and shall be selected for the

applicable pressure ratings specified and sized adequately for the required capacity and duty.

Tubing shall be in compliance with the following:

Material : ASTM B 677 Grade TP 904-L.

Execution : Seamless, Bright annealed.

Hardness : HRB-80 max.

Marking : Material grade, heat number, O.D. and W.T.

: Marking to be free of chlorides, zinc, lead or copper.

Thickness : As a minimum 0.049” W.T. shall be used.

Certification : According to EN 10204/3.1.B.

Manufacturer : As per preferred Suppliers list of general specification 610.

Installation : For installation of tubing refer to chapter 8.3 of general specification 610.

All fittings shall be of 316-L stainless steel, imperial sized (inch/NPT), and shall be selected for

the applicable pressure ratings specified and sized adequately for the tubing described above.

Contractor shall insure that all instrument fitters are certified for “Swagelok” twin ferrule fittings.

All tube connections shall be inspected by a third party invited by Company.

Fittings shall be manufactured by Swagelok.

All bolts, nuts and washers shall be stainless steel A4

As sealant material, Teflon tape or SWAK shall be used.

The tubing shall be secured to the tray with "STAUFF" type PP-ACHV (black) fastening blocks at

(maximum) 0.6 metres intervals. Blocks with stainless steel cover plates, bolts and nuts shall be

delivered and supplied by the Contractor. To prevent corrosion between the “Stauff” blocs and

the SS tubing Molykote 111 shall be applied on top and bottom “Stauff” bloc before the

installation of the top “Stauff” bloc .After fastening the bulging should be removed.

This shall be done on all “Stauff” blocs (e.g. process, instrument air and hydraulic tubing).

The contractor shall ensure that all “Stauff” blocks (incl. Neptune Energy supplied items) shall

be kept clean and free of dirt, dust and blasting grid during fabrication, Neptune Energy shall

have the right to supervise the preventive measures and precautions carried out by contractor

In case of any doubt “Stauff” blocks shall be reinstated by contractor.



6.10 PAINTING

The cabinet shall have standard finish and painted 'grey' in accordance with RAL 7035. Painting

shall be in accordance with Manufacturer's Standard.

Supplier shall include in his supply sufficient primer and finish paint to repair approximately 5

percent of the surface of the equipment, at site, in case of damage (minimum quantity 1 kg).

Stainless steel cabinet for outdoor use shall be painted in compliance with Buyer’s Painting and

Coating specification (525, latest revision).

6.11 IDENTIFICATION

Supplier shall furnish one white nameplate, fixed to the cabinet, in black letters, stating the tag

number of the cabinet, description, manufacturer, year, power supply, order number, name

Supplier.

Instrument nameplates shall be made of corrosion resistant weatherproof material with black

letters with a minimum height of 5 mm on a white background. Inscription shall be in the English

language.

Permanent nameplates shall also be provided identifying each instrument, instrument switch,

meter, relays, control switch, indication lights, etc. in accordance with IEC regulations.



7.0 FABRICATION

7.1 Conventional industry standards shall be followed in the assembly and a good workmanship

used in fabricating this cabinet. Supplier shall use a quality control method to assure that the

cabinet is assembled and wired in accordance with the drawings.

7.2 A connection function check shall be made on a 100% basis before the cabinet is

energised/pressurised. The unit shall be cleared of all defects before presenting it to Buyer for

acceptance.



8.0 TERMINATION

Ж 8.1 Input/output terminals shall preferably be Phoenix-Contact of the Clip line series and shall be

fitted to terminal rails located on a mounting plate in the cabinet. I.S. terminals shall be coloured

blue. There shall be a physical segregation between the I.S. circuits and the non-I.S. circuits in

the cabinet in accordance with the applicable standards. All terminals shall be elevated at least

30 mm from the terminal rails.

8.2 Terminals for voltage levels >50V AC or 120V AC shall be physically segregated from all other

terminals and shall be fitted with a personnel protection cover clearly labelled.

8.3 Terminals shall be of the non-self loosening type, shall be nickel plated and only accept one

wire. Terminals to accommodate wiring by others shall be sized to accept 1.5 mm² wires for

signal cables and wires of a minimum 4 mm² for power cables. The terminals shall be of a

separation type whereby the input circuit can be separated from the other circuit without

shutdown the system.

8.4 Sockets and terminals for input/output connections shall be arranged and labelled according

to the documents and drawings provided by Buyer with Purchase Order. Each shall be identified

by a securely fixed label which is clearly visible after site cabling is complete.

8.5 Cable screens of instrument cables are to be connected to the instrument earth bar which shall

be supplied and installed by the cabinet Supplier. All earth connections within Supplier's scope

of responsibility shall be made and shall be suitable and in accordance with the system

requirements. Note that earth bars for I.S. and non-I.S. earth connections shall be separately

installed within the cabinet, as detailed in section 10.

8.6 All powered outputs to solenoid valves, indicating lamps and the like shall be fused on the

positive side of the power supply.



9.0 WIRING

Ж 9.1 All wires within the panel that are connected to terminal strips used for convenience in internal

wiring, or wires terminating on device terminals not otherwise marked, and wires terminating

on terminal strips for external connections shall be marked with permanent type wire markers

bearing the number of the terminal row and/or the device terminal to which it is connected.

Wire markers shall be of the interlockable type. Thermal Transfer Technology can be used to

print on heat shrinkable sleeves or ribbons.

Wires connected to terminal rows shall be marked with terminal row/terminal number.

Wires connected to relays, plc’s, circuit breakers, etc. shall be marked with the numbers of the

relevant devices.

9.2 All control wiring within the panel shall be of stranded wire 0.5 mm² with an insulation rating of

500V and a minimum of 2.5 mm² for power busses.

9.3 Wire pins make AMP-pidg or bootlace ferrules shall be used.

9.4 Systems operating at different voltage levels are to be fully segregated.

9.5 Wiring to the swing-out rack(s) and door(s) shall be properly secured in wire looms by using

spiral lacing or equal.

9.6 All intrinsically safe equipment and wiring shall be segregated. Overall insulating sheath of

intrinsically safe wiring shall be blue. Trunking shall also be segregated and coloured blue.

9.7 Internal wiring shall be by single core, insulated wires, with the following colours:

black colour - AC/DC wiring, power supplies

grey colour - electronic signal, incoming and outgoing contacts

blue colour - intrinsically safe wiring

9.8 Wiring shall be housed in a system of plastic wireducts. A separate duct is required for the

following:

AC wiring, power supply, incoming and outgoing contacts (grey colour)

Electronics signal wiring (grey colour)

Intrinsically safe wiring (blue colour)

A 50 mm distance is required between the intrinsically safe wiring and the other wiring types.



10.0 EARTHING

10.1 Where a number of electrical components are to be earthed, parallel earthing shall be employed

and not series looping of equipment.

10.2 On equipment, earth conductor connections, which are regularly disconnected for maintenance

of the equipment, shall be made with screw type solderless connectors. Other connections shall

be made with crimp type connectors.

10.3 Bolted earth connections shall be made with corrosion-proof materials with spring washers

and/or locknuts fitted.

10.4 When equipment earthing or bonding jumpers are not bare copper but insulated, the colour of

the insulation shall be yellow/green.

10.5 Minimum size of earth conductors shall be 2.5 mm² (for safety grounding).

10.6 An isolated earthbar (clean or instrument earth) and a non-isolated earthbar (dirty or plant

earth) to which equipment earthing is connected shall be supplied. The earthbars shall be

supplied with bolts and washers size M10 to accommodate Buyer's external earth connections.

Screens, armouring and earth wires of instrument cables shall be connected to an isolated earth

bar, cabinets and power cable armouring shall be connected to a non-isolated earth bar.

10.7 All electrical joints made for earthing shall be accessible and checked for tightness and electrical

contact (clean, not corroded).

10.8 Instrument earth wire and sleeving shall be coloured yellow/black and dirty earth wire and

sleeving shall be coloured yellow/green.

10.9 Removable parts (e.g. links to doors) shall be earthed by means of a flexible earth wire with

yellow/green insulation.



11.0 INSPECTION AND TESTING

11.1 Buyer's representative and/or Certifying Authorities representatives shall have the right of

access to the units at any time during fabrication, to ensure that the materials and workmanship

are in accordance with this specification, the applicable drawings and design codes, and that

fabrication is being performed to the required standard.

11.2 The responsibility for inspection and testing rests with Supplier. Supplier shall notify Buyer in

writing with a minimum of ten (10) days before any testing, enabling Buyer's representative to

be present to witness such tests.

Buyer reserves the right to witness such inspections and testing, which are necessary to achieve

certification/documentation requirements.

Inspection and/or witnessing of tests and release of units for shipment shall in no way relieve

Supplier of any responsibilities and guarantees as to the provisions of this specification.

Written permission must be obtained for any phase of inspection or testing to be waived.

11.3 Supplier shall provide a detailed test procedure for Buyer's review and approval at least four(4)

weeks prior to Supplier's test programme. The test programme shall ensure that all the testing

required is identified, performed and documented. The tests to be carried out shall include, but

not be limited to, the following:

Mechanical check on proper installation, nameplates engraving for insulation, damage,

accessibility of installed equipment, compliance to the specification.

Electrical circuits shall be checked for continuity, insulation testing within the voltage extremes

and earth fault.

A full functional test of the complete system using approved simulating devices. Supplier

shall provide all temporary wiring, required to perform a complete functional test.

11.4 Factory Acceptance Test

Supplier shall present a fault free system for the Factory Acceptance Test (FAT) to Buyer or

Buyer's representative. The FAT procedure shall include the handing over of all records made

during the construction period such as test results, list of changes, 'as-built' drawings,

calibration certificates and any other relevant documentation. The tests shall be fully

documented and recorded including any equipment failures, repairs or replacement, in the

Manufacturer's Record Book.

Any malfunctions of equipment shall be rectified and retested, at Supplier's expense and to the

satisfaction of Buyer, as part of the testing.

Sufficient time, ample space and necessary assistance shall be provided by Supplier to ensure

inspection and testing to the satisfaction of Buyer or his representative.



12.0 CRATING AND SHIPPING

After the cabinet has been checked in Supplier's workshop and is found to be to Buyer's

satisfaction, Supplier shall prepare the cabinet for shipment.

Ж Packing and protection shall be sufficient to protect the cabinet and its contents for a period of

3 months when stored in an unheated warehouse following delivery.

Special attention shall be taken when equipment is shipped to an offshore location, the package

shall than be seaworthy as per requisition.

In general, the mounted instruments can remain in the cabinet if shipping instructions by the

instrument manufacturer are followed and moving parts are secured and kept from vibrating

during transit.

Fragile parts shall be packaged separately in sturdy boxes with suitable shock absorbing

material to prevent these items from being crushed or jarred during transit.

Documents

TABLE OF CONTENTS - Neptune Energy · The cabinet shall be executed as a complete enclosure and shall be provided with internal iron angle or channel frame work of sufficient strength