34-samss-913

Previous Issue: 16 February 2009 Next Planned Update: 16 February 2012 Revised paragraphs are indicated in the right margin of 22 Primary contact: Balhareth, Hamad Salem on 966-3-8736389

Copyright©Saudi Aramco 2009. All rights reserved.

Materials System Specification

34-SAMSS-913 7 September 2009 Instrumentation and Thermocouple Cable

Instrumentation Standards Committee Members Al-Juaib, Mohammed Khalifah, Chairman Tuin, Rienk , Vice Chairman Fadley, Gary Lowell Falkenberg, Anton Raymond Grainger, John Francis Jumah, Yousif Ahmed Khalifa, Ali Hussain Qarni, Mahdi Ali Qaffas, Saleh Abdal Wahab Trembley, Robert James Mahmood, Balal Chetia, Manoj Mathew, Vinod Sahan, Fawaz Adnan Faer Al Sharif, Hisham Mohammed Saleem, Hesham Salem Harbi, Ahmed Saad Dakhil, Tareq Khalil Ell, Steven Tal

Saudi Aramco DeskTop Standards Table of Contents 1 Scope............................................................. 2 2 Conflicts and Deviations................................ 2 3 References..................................................... 2 4 Engineering Units........................................... 4 5 Definitions...................................................... 4 6 Cable Specifications....................................... 5 7 Marking........................................................ 19 8 Testing......................................................... 20 9 Other Miscellaneous Requirements............ 21

Document Responsibility: Instrumentation Standards Committee 34-SAMSS-913

Issue Date: 7 September 2009

Next Planned Update: 16 February 2012 Instrumentation and Thermocouple Cable

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1 Scope

This specification defines the minimum requirements for instrumentation and

thermocouple extension cable for signaling and control purposes. Cables for data

highway applications are outside the scope of this Specification.

2 Conflicts and Deviations

2.1 Any conflicts between this specification and other applicable Saudi Aramco

Materials System Specifications (SAMSSs), Engineering Standards (SAESs),

Standard Drawings, (SASDs), or industry standards, codes, and forms shall be

resolved in writing by the Company or Buyer Representative through the

Manager, Process and Control Systems Department of Saudi Aramco, Dhahran.

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

or Buyer Representative, who shall follow internal company procedure

SAEP-302 and forward such requests to the Manager, Process and Control

Systems Department of Saudi Aramco, Dhahran.

2.3 It is recognized that continuing improvements and developments in the areas of

insulation materials and cable construction may impact this Specification.

Materials and construction methods considered by the manufacturer to be

equivalent to or superior to that which is specified in this document may be

proposed by the supplier to the Company or Buyer Representative, who shall

forward such proposals to the Supervisor, Instrumentation Unit, Process

Instrumentation Division, P&CSD for further processing.

3 References

Materials or equipment supplied to this specification shall comply with the latest edition

of the references listed below, unless otherwise noted.

3.1 Saudi Aramco References

Saudi Aramco Engineering Procedure

SAEP-302 Instructions for Obtaining a Waiver of a

Mandatory Saudi Aramco Engineering

Requirement

Saudi Aramco Inspection Requirements

Form 175-347600 Instrumentation and Thermocouple Cable

Saudi Aramco Forms and Data Sheets

Form NMR-7930 Nonmaterial Requirements

http://standards/docs/Saep/PDF/SAEP-302.PDF

http://standards/docs/Saep/PDF/SAEP-302.PDF

http://standards/docs/Inspection_Requirements/PDF/175-347600.PDF

http://standards/docs/Nonmaterial_Requirements/PDF/SA-7930.PDF




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Form 8020-913-ENG ISS-Instrumentation and Thermocouple Cables

3.2 Industry Codes and Standards

American National Standards Institute

ANSI MC96.1 Temperature Measurement Thermocouples

American Society for Testing and Materials

ASTM B3 Standard Specification for Soft or Annealed

Copper Wire

ASTM B33 Standard Specification for Tinned Soft or

Annealed Copper Wire for Electrical Purposes

Fieldbus Foundation

FF-844 H1 CableTest Specification

British Standard

BS 6387 Performance Requirements for Cables Required to

Maintain Circuit Integrity under Fire

Conditions

Institute of Electrical and Electronics Engineers

IEEE 383 Type Test of Class IE Electric Cables, Field

Splices, and Connections for Nuclear Power

Generating Stations

Insulated Cable Engineers Association

ICEA S-95-658 Standard for Nonshielded Power Cables Rated

2000 Volts or Less For The Distribution Of

Electrical Energy

International Electrotechnical Commission

IEC 61158 - 2 Fieldbus Standard for Use in Industrial Control

Systems - Part 2: Physical Layer Specification

and Service Definition

Military Specification

MIL-W-25038 General Specification for High Temp, Fire

Resistant, and Flight Critical Electrical Wire

National Fire Protection Association

http://standards/docs/Forms_Data_Sheets/XLS/SA-8020-913.xls

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http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=BSI+BS+6387+-+1994&RefGroupId=30

http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=IEEE+383+-+2003&RefGroupId=30

http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=ICEA+S-95-658+-+1999&RefGroupId=30

http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=IEC+61158-2+-+2007&RefGroupId=30




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NFPA 70 National Electrical Code (NEC)

Underwriters Laboratories, Inc.

UL 13 Power Limited Circuit Cables and Power Limited

Fire Protective Signalling Cables

UL 1277 Electrical Power and Control Tray Cables with

Optional Optical Fiber Members

UL 1709 Protection for Resistance to Rapid-Temperature-

Rise Fires

UL 2250 Instrumentation Tray Cable

4 Engineering Units

All dimensions and measurements shall be in the “International System of Units” (SI),

and may be followed by the equivalent value in English units bracketed in parentheses

( ). When not critical, the equivalent dimensions and measurements may be rounded off

to their nearest practical value.

5 Definitions

Crosslink: A process in which chemical bonds are established between long chain

polymer molecules. When applied to polyolefin materials, the material properties

change from thermoplastic to thermoset plastic.

ITC: Instrumentation tray cable, per NFPA 70, NEC Article 727.

PLTC: Power-limited tray cable, per NFPA 70, NEC Article 725.

Polyolefin: In terms of wire insulation, a plastic formulation consisting of polyethylene

and additives such as flame retardants, antioxidants, stabilizers and crosslinking

enhancers.

PVC: Polyvinyl chloride.

TC: Tray cable, per NFPA 70, NEC Article 340.

XPLE: Crosslinked polyethylene. This term is generically used to describe a

crosslinked blend of polyethylene and performance enhancing additives, irrespective of

the polyethylene content (refer to Polyolefin, above).

XLPO: Crosslinked polyolefin. This name is technically given to a crosslinked

polyethylene/additive blend where the polyethylene content is less than 50%.

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6 Cable Specifications

6.1 General

Instrumentation and thermocouple cable covered by this Specification comprise

six general groups as follows:

Group 1 - Single twisted pair/triad, unshielded

Group 2 - Single twisted pair/triad, shielded

Group 3 - Multipair/triad, unshielded with or without overall shield

Group 4 - Multipair/triad, individual and overall shields

Group 5 - Thermocouple extension wire

Group 6 - Fireproof cable

Group 7 FOUNDATION Fieldbus (FF) cables.

Due to differences in manufacturing and design, some cables will require fillers,

binders and separator tapes. These components shall be provided whenever they

comprise an integral part of the standard design of the cable. The utilization of

these components shall not constitute a deviation from this Specification.

6.2 Group 1 - Single Twisted Pair/Triad, Unshielded

6.2.1 Conductor

Stranded, circular copper, per ASTM B3, 7 strands minimum; tinned,

per ASTM B33, if primary insulation may corrode unprotected copper

(e.g., unstabilized XLPO/XLPE) or if otherwise specified.

6.2.2 Conductor Size

16 AWG or as specified on Form 8020-913-ENG, Line Item 13.

6.2.3 Primary Insulation Material

Flame retardant PVC, nylon- jacketed PVC (For Type TC cables only)

or thermoset crosslinked polyolefin (XLPO or XLPE), minimum

temperature rating 90°C.

6.2.4 Primary Insulation Voltage Rating

300 V for Type PLTC and Type ITC Cable.

600 V for Type TC Cable.

6.2.5 Primary Insulation Thickness

0.38 mm (15 mils) minimum average thickness for Types PLTC and

ITC Cables.







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0.76 mm (30 mils) minimum average thickness for PVC or

XLPO/XLPE Type TC Cable

0.50 mm (20 mils) minimum average thickness for Nylon-jacketed

PVC Type TC Cable.

6.2.6 Assembly

Two insulated conductors uniformly twisted into a pair or three

insulated conductors uniformly twisted into a triad.

6.2.7 Lay of Twist

40 to 60 mm.

6.2.8 Color Code

One black wire, one white wire for pairs; one black wire, one white

wire, one red wire for triads; or as specified on Form 8020-913-ENG,

Line Item 14.

6.2.9 Jacket Material

Flame retardant PVC, minimum temperature rating 90°C.

6.2.10 Jacket Thickness

Minimum thickness per UL 13, paragraph 13.1 for Type PLTC

Minimum thickness per UL 1277, paragraph 11.3 for Type TC

Minimum thickness per UL 2250, paragraph 16.3 for Type ITC.

6.2.11 Jacket Application

Extruded over conductor assembly.

6.2.12 Jacket Color

Non-intrinsically safe applications: Manufacturer's standard other than

blue.

Intrinsically safe applications: Blue

6.3 Group 2 - Single Twisted Pair/Triad, Shielded

6.3.1 Conductor








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ITC Cables.


XLPO/XLPE Type TC Cable.


PVC Type TC Cable.

6.3.6 Assembly



6.3.7 Lay of Twist

40 to 60 mm.

6.3.8 Color Code



Line Item 14.








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6.3.9 Shield Material

Aluminum foil bonded to non-hygroscopic polyester (Mylar) tape,

either foil free edge or equal-width foil and tape, per Manufacturer's

standard.

6.3.10 Shield Thickness

0.022 mm (0.85 mil) minimum.

6.3.11 Shield Application

Helical, minimum 25% overlap, to provide 100% coverage and

electrical isolation from conductors.

6.3.12 Shield Drain Wire Conductor

Stranded, circular tinned copper, per ASTM B33, 7 strands minimum.

6.3.13 Shield Drain Wire Size

Manufacturer's standard, with minimum size one even gauge size

smaller than conductor size.

6.3.14 Shield Drain Wire Application

In continuous contact with shield foil.









6.3.18 Jacket Color


blue.








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6.4 Group 3 - Multipair/triad, Unshielded, with or without Overall Shield

6.4.1 Conductor















ITC Cables.




PVC Type TC Cable.

6.4.6 Assembly



6.4.7 Lay of Twist

40 to 60 mm.







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6.4.8 Color Code



Line Item 14.

6.4.9 Number of Pairs or Triads

Refer to Form 8020-913-ENG, line item 12. Manufacturer's standard

products, meeting or exceeding this number is acceptable upon

approval of Buyer.

6.4.10 Pair/triad Identification

Number designation continuously stamped on white conductor.

6.4.11 Cable Assembly

Single grouped assembly, per Manufacturer's standard.

6.4.12 Communication Wire

Not required. If provided, shall be Manufacturer's standard size;

insulation same as primary insulation; orange color.

6.4.13 Overall Shield Material

When offered as Manufacturer's standard construction, aluminum foil

bonded to non-hygroscopic polyester (Mylar) tape, either: foil free-

edge or equal-width foil and tape, per Manufacturer's standard.

6.4.14 Overall Shield Thickness


6.4.15 Overall Shield Application


electrical isolation from conductors.

6.4.16 Overall Shield Drain Wire Conductor








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6.4.17 Overall Shield Drain Wire Size



6.4.18 Overall Shield Drain Wire Application









Extruded over assembly.

6.4.22 Jacket Color


blue.


6.5 Group 4 - Multipair/triad, Individual and Overall Shields

6.5.1 Conductor















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ITC Cables.




PVC Type TC Cable.

6.5.6 Assembly



6.5.7 Lay of Twist

40 to 60 mm.

6.5.8 Color Code



Line Item 14.

6.5.9 Number of Pairs or Triads



approval of Buyer.

6.5.10 Pair/triad Identification

Number designation continuously stamped on white conductor






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6.5.13 Individual Shield Material


either: foil free-edge or equal-width foil and tape, per Manufacturer's

standard.

6.5.14 Individual Shield Thickness


6.5.15 Individual Shield Application


electrical isolation from other shields and conductors.

6.5.16 Individual Shield Drain Wire Conductor


6.5.17 Individual Shield Drain Wire Size



6.5.18 Individual Shield Drain Wire Application





standard.







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electrical isolation from conductors and other shields.
















6.5.28 Jacket Color


blue.


6.6 Group 5 - Thermocouple Extension Wire

6.6.1 Conductor

Solid thermocouple extension wire per ANSI MC96.1.









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16 AWG for single pair; 18 AWG for multiple pair; or as specified on

Form 8020-913-ENG, Line Item 13.


Flame retardant PVC or thermoset crosslinked polyolefin (XLPO or

XLPE), minimum temperature rating 90°C.


300 V.


0.38 mm (15 mils) minimum average thickness.

6.6.6 Assembly

Two insulated conductors uniformly twisted into a pair.

6.6.7 Lay of Twist

40 to 60 mm.

6.6.8 Color Code

Per ANSI MC96.1.

6.6.9 Number of Pairs



approval of Buyer.

6.6.10 Pair Identification

Number designation continuously stamped on conductor (Multiple pair

only).









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6.6.13 Individual Shield Material



standard.

6.6.14 Individual Shield Thickness


6.6.15 Individual Shield Application


electrical isolation from other shields and conductors.

6.6.16 Individual Shield Drain Wire Conductor

Solid or stranded (7 strands minimum), circular tinned copper, per

ASTM B33.

6.6.17 Individual Shield Drain Wire Size



6.6.18 Individual Shield Drain Wire Application





standard.







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electrical isolation from conductors and other shields.











Minimum thickness per UL 13, paragraph 13.1 for Type PLTC.



6.6.28 Jacket Color

Per ANSI MC96.1.

6.7 Group 6 - Fireproof Cable

When the instrument installation is required to be fireproofed, cables which

maintain signal integrity for a duration of 20 minutes when tested in accordance

with UL 1709 may be specified in lieu of externally fireproofing conventional

cables. Silicon dioxide- and magnesium oxide-insulated cables, as well as fire

resistant polymer-alloy jacketed cables meeting the above test criteria may be

considered. Fireproof cable shall be specified on Form

8020-913-ENG, Line Item 23.

Commentary Note:

Cable meeting MIL-W-25038 or BS 6387 is considered technically acceptable for fireproof service.




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6.8 Group 7 - FOUNDATION™ Fieldbus Cables

6.8.1 Trunk ( Homerun ) Cables

6.8.1.1 The trunk cables shall conform to parameters specified in

IEC 61158 - 2 section 12.8.2.

6.8.1.2 All the applicable sections in Group 4 shall also be met

except the color coding shall be as specified in section 6.8.3.

6.8.1.3 All FF cables shall be compliant to FF-844, H1 Cable Test

Specification and shall be registered by Fieldbus Foundation.

6.8.2 Spur Cables

6.8.2.1 Spur cables shall meet sections 6.8.1.1 and 6.8.1.3 above.

6.8.2.2 Spur cables shall also meet the applicable cable specifications

in Group 2 above.

Exception:

1) The color coding shall be as specified in section 6.8.3.

2) The spur conductor size shall be 18 AWG as specified in IEC-61158-2.

6.8.3 Color Coding

6.8.3.1 For all FF cables, spur and trunk, the outer jacket color shall

be orange.

6.8.3.2 For all armored FF cables, spur and trunk, the inner and outer

jacket color of the armored cable shall be orange.

6.8.3.3 For all FF cables, spur and trunk, the conductor color code

shall be black and white with bare tinned copper conductor

for the drain/shield arrangement.

6.9 Options

The following options, when required, will be shown on Form 8020-913-ENG,

Line Items 27 through 36.

6.9.1 Direct Burial Cable

Cable intended for direct burial service shall be so designated on Form

8020-913-ENG, Line Item 27. The Manufacturer shall certify that the

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cable is suitable for direct burial service and is moisture and abrasion

resistant.

6.9.2 Oil Resistant Cable

Cable intended for applications where it may be exposed to

hydrocarbon oil shall be so designated on Form 8020-913-ENG, Line

Item 28. The manufacturer shall certify that the cable is resistant to

hydrocarbon oil or as indicated on the specification sheet.

6.9.3 Armored Cable

Armored cable shall have served steel wire or interlocked steel armor

under an extruded PVC outer jacket. Steel armor shall be galvanized.

Exception:

UL listed Type MC cable with corrugated aluminum armor may be used in offshore applications. The aluminum armor shall be covered with an outer PVC jacket.

6.9.4 Capacitance, Inductance, Resistance, L/R Ratio

Cables for applications which require mutual capacitance, conductor-

to-ground capacitance, resistance and/or L/R (inductance-to-resistance)

ratio to be within specified limits shall comply with the values listed on

Form 8020-913-ENG, Line Items 31 through 36.

7 Marking

7.1 Outer Jacket Marking

The following information shall be clearly marked on the outer jacket of the

cable, in no specific order:

a) Manufacturer's name, trade name, catalog or type number

b) Number of pairs/triads

c) Conductor size in mm² or AWG

d) Voltage rating (300 or 600 V)

e) Type of cable (PLTC, TC or equivalent)

f) Approval mark of listing authority (UL, IEC, BS, DIN, or equivalent)






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g) “Sunlight resistant” designation, in Manufacturer's standard

nomenclature, for Type TC cable (Optional for Type PLTC cable)

h) “Direct burial” designation, if applicable per UL 13 or UL 1277, in

Manufacturer's standard nomenclature

i) “Oil resistant” designation, in manufacturer's standard nomenclature, for

Type TC Cable (preferred for Types ITC and PLTC Cable)

j) For FOUNDATION™ Fieldbus cables, “TYPE A” shall be marked. In

addition, all FF cables shall be listed as PLTC or ITC and shall bear any

other mandatory marking specified in FF-844.

7.2 Cable Reel Marking

Each reel shall have a weatherproof (metal or plastic) tag, securely attached to a

flange of the reel and plainly stating:

a) Manufacturer's trade name

b) Date of manufacture

c) Conductor size

d) Cable rating

e) Type of cable

f) Temperature designation

g) Minimum bend radius

h) Maximum pulling tension

i) Shipping length and diameter of cable

j) Saudi Aramco Purchase Order number

8 Testing

Type Tests: Each cable type shall be type tested, with the test conducted and certified

by an approved third party testing authority.

8.1 Physical Type Tests

a) Physical Properties Test for aged and unaged samples per UL 13, section

7; UL 1277, section 11, UL 2250, section 20, or equivalent.









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b) Cold Bend Test per UL 13, section 19; UL 1277, section 15, UL 2250,

section 23, or equivalent.

c) Flame Retardance Vertical Tray Test of 20.5 kW (70,000 Btu/h) per

IEEE 383, UL 13, UL 1277, UL 2250, or equivalent.

d) Crushing and water absorption tests for cables marked for direct burial per

UL 13, UL 1277, UL 2250, or equivalent.

8.2 Electrical Performance Tests

8.2.1 Spark Test

The insulation on cable conductors shall be spark tested in accordance

with UL 13 or equivalent for power limited tray cable (type PLTC), or

UL 1277 or equivalent for tray cable (type TC), or UL 2250 or

equivalent for instrumentation tray cable (type ITC).

8.2.2 Insulation Resistance

Insulation resistance of finished cables shall be tested in accordance with

dielectric withstand tests in UL 13, UL 1277, UL 2250, or equivalent.

8.2.3 Conductor Resistance

Nominal DC resistance of copper conductor instrumentation cable

shall be in accordance with UL 13, ICEA S-95-658 or equivalent.

Thermocouple extension cable is excluded from this test.

8.2.4 All Foundation Fieldbus (FF) cables shall be tested to ensure full

compliance to IEC 61158-2 Section 12.8.2 and FF-844 and shall be

registered by Fieldbus Foundation.

9 Other Miscellaneous Requirements

9.1 Inspection

Items manufactured to this Specification are subject to the minimum inspection

requirements as specified in Saudi Aramco Inspection Requirements Form

175-347600.

9.2 Nonmaterial Requirements

The supplier shall provide nonmaterial items as shown on Form NMR-7930.




http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=IEEE+383+-+2003&RefGroupId=30














http://linkmanager.ihs.com/LinkManagerService/LKMLink.aspx?LinkRefName=ICEA+S-95-658+-+1999&RefGroupId=30

http://standards/docs/Inspection_Requirements/PDF/175-347600.PDF

http://standards/docs/Nonmaterial_Requirements/PDF/SA-7930.PDF




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Revision Summary

16 February 2009 Revised the "Next Planned Update". Reaffirmed the contents of the document, and reissued with minor changes.

Streamline this document with the UL requirements for TC cables and allow Type MC cables with aluminum armor for offshore applications due to its light weight.

7 September 2009 Minor revision to meet the triennial revision and to streamline with SAES-J-904 which recently went through a major revision.

34-samss-913

Documents

instrumentation unit

references materials

cable specifications

cable construction

thermocouple cable page

industry standards

thermocouple extension

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