TRANSMISSION MATERIALS STANDARD SPECIFICATION
11-TMSS-10, Rev. 0
TABLE OF CONTENTS
1.0
SCOPE
2.0
CROSS REFERENCES
3.0
APPLICABLE CODES AND STANDARDS
4.0
DESIGN AND CONSTRUCTION REQUIREMENTS 4.1 4.2 4.3 4.4
5.0
General Ratings Materials Cable Marking and Identification
TESTS 5.1 5.2 5.3
Type (Design) Tests Routine (Production) Tests Special Tests
6.0
PACKING AND SHIPPING
7.0
DATA SCHEDULE
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 2 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
1.0
11-TMSS-10, Rev. 0
SCOPE This SEC Transmission Material Standard Specification (TMSS) specifies the minimum technical requirements for design, engineering, manufacture, inspection testing and performance of Power and/or Control Cables, rated 600/1000V, intended to be used in the system of Saudi Electricity Company (SEC), Saudi Arabia.
2.0
CROSS REFERENCES This Transmission Material Standard Specification shall be read in conjunction with the latest revision of SEC Transmission General Specification No. 01-TMSS-01 titled “General Requirements for all Equipments/Materials” which shall be considered as an integral part of this TMSS. This TMSS shall also be read in conjunction with SEC Transmission Purchase Order or Contract Schedules for project, as applicable.
3.0
APPLICABLE CODES AND STANDARDS The latest revision/amendments of the Codes and Standards listed hereunder shall be applicable for the equipment/material covered in this specification. In case of conflict, the vendor/manufacturer may propose equipment/materials conforming to one group of Industry Codes and Standards quoted hereunder without jeopardizing the requirements of this TMSS. 3.1
IEC 60227-1
Polyvinyl Chloride Insulated Cables of Rated Voltages up to and Including 450/750V, Part 1: General Requirements
3.2
IEC 60229
Tests on Cable Oversheaths which have a Special Protective Function and are applied by Extrusion.
3.2
IEC 60502-1
Power Cables with Extruded Insulation and their Accessories for Rated Voltages from 1 kV up to 30 kV, Part 1: Cables for Rated Voltages of 1 kV and 3 kV
3.3
ASTM B-3
Soft or Annealed Copper Wire
3.4
ASTM B-8
Concentric-Lay-Stranded Copper Conductors, Hard, Medium-Hard, or Soft
3.5
ASTM B-33
Tinned Soft or Annealed Copper Wire for Electrical Purposes
3.6
ANSI/NFPA 70
National Electrical Code
3.7
ICEA S-73-532 / NEMA WC 57
Standard for Control Cables
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 3 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
4.0
11-TMSS-10, Rev. 0
3.8
ICEA S-95-658 / NEMA WC 70
Standard for Non-Shielded Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
3.9
ICEA T-27-581/ NEMA WC 53
Standard Test Methods for Extruded Dielectric Power, Control, Instrumentation and Portable Cables
3.10
IEEE C37.122
Guide for Gas-Insulated Substations
3.11
UL 44
Standard for Safety Thermoset-Insulated Wires and Cables
3.12
UL 83
Standard for Safety Thermoplastic-Insulated Wires and Cables
3.13
UL 854
Standard for Safety Service-Entrance Cables
3.14
UL 1569
Standard for Safety Metal-Clad Cables
DESIGN AND CONSTRUCTION REQUIREMENTS 4.1
4.2
General 4.1.1
The cable shall be manufactured in accordance with above mentioned IEC standards or equivalent ICEA standards and shall meet or exceed the requirements of this specification in all respects.
4.1.2
The cable shall be designed for use in all low voltage power and/or control circuits and for installation in conduits, underground ducts or cable trays/raceways or for directly buried installations as specified in the Data Schedule.
4.1.3
For GIS applications, the control cable shall be properly shielded over the assembled cores per IEEE C37.122.1 in the 1-30 MHz frequency range.
Ratings The cable ratings shall be as specified in Data Schedule.
4.3
Materials 4.3.1
Conductor a.
11TMSS10R0/YM
Conductor material shall be either annealed copper or aluminum for power cables and annealed copper for control cables.
Date of Approval: March 18, 2006
PAGE NO. 4 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
4.3.2
11-TMSS-10, Rev. 0
b.
Conductors 4 mm² and larger shall be stranded. Conductors below 4 mm² may be stranded or solid as specified in the Data Schedule.
c.
When conductor tinning is specified in the Data Schedule, the requirements shall be as per ASTM B-33 or equivalent .
Insulation a.
The insulation material shall be PVC or XLPE as indicated in Data Schedule.
b.
The insulation shall be heat and moisture resistant, and flame retardant.
c.
The minimum average thickness of the insulation shall be as specified in Table 1.
d.
For multiconductor cables, fillers shall be of nonhygroscopic material compatible with the insulation and suitable for the operating temperature of the cables. Table 1: Minimum Average Thickness of Insulation Nominal Cross Sectional Area of Conductor (mm²) 1.5 - 2.5 4-6 10 - 16 25 - 35 50 70 95 120 150 185 240 300 400 500 630
4.3.3
Minimum Average Thickness of Insulation (mm) PVC XLPE 0.8 0.7 1.0 0.7 1.0 0.7 1.2 0.9 1.4 1.0 1.4 1.1 1.6 1.1 1.6 1.2 1.8 1.4 2.0 1.6 2.2 1.7 2.4 1.8 2.6 2.0 2.8 2.2 2.2
Binder When required, the binder (or separator) shall be a mylar tape, PVC binder tape or extruded PVC layer applied over the assembled cores. The average thickness of the binder shall not be less than 1 mm.
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 5 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
4.3.4
11-TMSS-10, Rev. 0
Metallic Shield When specified in the Data Schedule, the metallic shield shall be a helically applied flat bare copper tape.
4.3.5
Armor a.
For above ground installations, armor shall be a PVC jacketed, close-fitting, flexible, corrugated aluminum sheath, seamless or welded.
b.
For direct burial, the cable armor shall consist of close-fitting flexible corrugated impervious galvanized steel interlocked sheath.
c.
For power cable without grounding conductor, the total crosssectional area of the sheath (armor) shall be equal to the minimum acceptable area of ground conductor required for the circuit conductor size as listed in Table 2. Table 2: Size of Armor
Size of Circuit Conductor mm² 2.5 4 6 - 10 16 - 25 30 - 70 85 - 130 150 - 200 230 - 330 350 - 450 500 630 d.
4.3.6
AWG/kcmil 14 12 10 - 8 6-4 3 - 2/0 3/0 – 250 300 – 400 450 – 650 700 - 900 1000 1250
Size of Armor (Minimum Size of Ground Conductor) mm² AWG 2.5 14 4 12 6 10 10 8 16 6 25 4 35 3 35 2 50 1 70 1/0 -
Any bituminous or similar compound used as protective coating between the sheath and the jacket shall have softening temperature of 65°C.
Jacket The jacket shall be black, ST 2 type, extruded PVC per IEC 60502-1 with heat, moisture, oil, sunlight, acid, alkali and flame resistant properties. For flame retardancy, a minimum oxygen index level of 30 % is required.
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 6 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
4.4
11-TMSS-10, Rev. 0
Cable Marking and Identification 4.4.1
The outer surface of the cable shall be durably and legibly marked in English language and Arabic numerals at intervals of 1 (one) meter with the following minimum information: a.
Rated voltage
b.
Insulation Material
c.
Conductor material, number of cores and size in mm²
d.
Manufacturer's name or trademark and country of origin
e.
Year of manufacture
The marking shall start at a distance of 50 cm from the inner end of the cable. 4.4.2
The jacket of all cables, excluding building wires, shall be marked with the cumulative length at every one meter, with the highest length mark on the outer end of the cable. The length marking shall start at one meter distance from the inner end of the cable, and shall not coincide with the markings described in subclause 4.4.1.
11TMSS10R0/YM
4.4.3
Cables that cannot be conveniently marked because of physical limitations of the outer surface, shall be provided with a printed tag or tape attached to the cable.
4.4.4
On multiconductor power cable, each phase shall be permanently identified with different solid colors. Identification for 3-phase system without ground application shall be red, yellow, blue.
4.4.5
For systems with ground or neutral application, the black color shall indicate the neutral conductor.
4.4.6
Green with yellow stripe insulated conductor shall be used in equipment grounding.
4.4.7
Cores of multiconductor control cables shall be identified in accordance with section 4 of IEC 60227-1 or part 5 of ICEA S-73532 (NEMA WC 57), section E.3.1, Method I.
4.4.8
Color of single core cable or wire shall be as specified in Data Schedule.
Date of Approval: March 18, 2006
PAGE NO. 7 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
5.0
11-TMSS-10, Rev. 0
TESTS All test results shall be provided for review and acceptance by SEC. 5.1
Type (Design) Tests All type (design) tests prescribed in the IEC 60502-1 or ICEA T-27-581 (NEMA WC 53) shall be performed on a representative unit or on the first unit of every new design or rating to be supplied to SEC. In lieu of the actual type (design) tests, certified test reports of type (design) tests performed on an identical unit may be submitted to SEC for review and approval during bidding stage.
5.2
Routine (Production) Tests All routine (production) tests prescribed in IEC 60502-1 or ICEA T-27-581 (NEMA WC 53) standard shall be performed on all cables.
5.3
Special Tests If required in Data Schedule, special tests shall be performed on all cables in accordance with IEC 60502-1 or equivalent.
6.0
PACKING AND SHIPPING In addition to the applicable requirements of 01-TMSS-01, the following packing and shipping instructions are applicable. 6.1
The cable shall be delivered without splices on nonreturnable standard size reels properly packed and lagged externally to provide physical protection for the cable shipment and to facilitate field handling and long term storage. Wood lagging shall have a minimum thickness of 25 mm.
6.2
The cable ends shall be sealed with a waterproof, heat shrinkable plastic or elastomeric end cap with adhesive type sealing compound. Cable ends shall be properly secured to the reel.
6.3
Reel Markings 6.3.1
11TMSS10R0/YM
Cable reels/drums shall be marked in legible and indelible letters giving the following particulars: a.
Manufacturer’s name or trademark and country of origin
b.
Year of manufacture
c.
Type of cable
d.
Number of cores and conductor size in mm2
e.
Cable rating Date of Approval: March 18, 2006
PAGE NO. 8 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
6.3.2
11TMSS10R0/YM
f.
Shipping length and overall diameter of cable
g.
Minimum bending radius
h.
Maximum pulling tension
i.
Gross weight
j.
Dimensions of reel
k.
Direction of rolling of reel
l.
Serial number of reel
m.
J.O. number/contract number (if applicable)
n.
SEC purchase order number
o.
11-TMSS-10, Rev. 0
11-TMSS-10, Rev. 0
All markings shall appear on both sides of the reel.
Date of Approval: March 18, 2006
PAGE NO. 9 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
7.0
11-TMSS-10, Rev. 0
DATA SCHEDULE
POWER AND/OR CONTROL CABLE, COPPER OR ALUMINUM CONDUCTOR, 600/1000V RATING SEC Enquiry No.
Date:
SEC Purchase Order No. or Contract No.
Date:
SEC PTS No./Project Title with J.O. No. REFERENCE SECTION NO. 3.0
DESCRIPTION
'A'
'B'
'C'
APPLICABLE CODES AND STANDARDS Standards to which material shall conform
*
4.0
DESIGN AND CONSTRUCTION REQUIREMENTS
4.1
General Cable application (Power or Control) Cable installation (conduit, duct, trays, direct burial, GIS etc.) Voltage rating (kV)
*
Fault current duration (sec.) Available ground fault current (kA) (when shielded cable is required) Conductor DC resistance per km at 20°C (Ω)
'A''B''C'(*)-
*
SEC SPECIFIED DATA/PARAMETER. BIDDER/SUPPLIER/VENDOR/CONTRACTOR PROPOSED DATA/PARAMETERS. REMARKS SUPPORTING THE PROPOSED DEVIATION IN COLUMN 'B'. DATA/PARAMETER TO BE PROVIDED/PROPOSED BY THE BIDDER/SUPPLIER/ VENDOR/CONTRACTOR IN COLUMN 'B'.
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 10 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
7.0
11-TMSS-10, Rev. 0
DATA SCHEDULE
POWER AND/OR CONTROL CABLE, COPPER OR ALUMINUM CONDUCTOR, 600/1000V RATING REFERENCE SECTION NO. 4.0
4.3.1
DESCRIPTION
'A'
'B'
'C'
DESIGN AND CONSTRUCTION REQUIREMENTS (Continued) Conductor AC resistance per km at 20°C (Ω)
*
Minimum Insulation resistance per km at 20°C (MΩ)
*
Maximum permissible continuous conductor temperature (°C)
*
Maximum rated temperature of insulation material (°C)
*
Maximum permissible continuous jacket temperature (°C)
*
Conductor Material
Cu / Al
Conductor cross sectional area (mm²)
*
For conductors 4mm² and larger: Number of strands per conductor
*
Diameter of compacted strand (mm)
*
Number of conductors
*
For conductors below 4mm²: Stranding required ?
Yes / No
Number of strands per conductor
*
Diameter of compacted strand (mm)
*
Number of conductors
*
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 11 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
7.0
11-TMSS-10, Rev. 0
DATA SCHEDULE
POWER AND/OR CONTROL CABLE, COPPER OR ALUMINUM CONDUCTOR, 600/1000V RATING REFERENCE SECTION NO. 4.0
DESCRIPTION
'B'
'C'
DESIGN AND CONSTRUCTION REQUIREMENTS (Continued) Outer diameter of conductor (mm) Is conductor tinning required?
4.3.2
'A'
Insulation Material
* Yes / No PVC / XLPE
Minimum average thickness of insulation (mm)
*
Outer diameter over insulation (mm)
*
Insulation shield material, if any Thickness of insulation shield (mm)
*
4.3.3
Binder required ?
Yes / No
4.3.4
Metallic shield required ?
Yes / No
Thickness of metallic shield (mm) 4.3.5
Armor material, if any
4.3.6
Jacket Material
*
PVC
Average jacket thickness (mm)
*
Overall diameter of cable (mm)
*
4.4.7
Reference standard for core identification (IEC, ICEA)
*
4.4.8
Color of single core cable/wire (if applicable)
*
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 12 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
7.0
11-TMSS-10, Rev. 0
DATA SCHEDULE
POWER AND/OR CONTROL CABLE, COPPER OR ALUMINUM CONDUCTOR, 600/1000V RATING REFERENCE SECTION NO.
DESCRIPTION
'A'
5.0
TESTS
5.3
List of special tests, if required
6.0
PACKING AND SHIPPING
6.3
Cable weight (kg/km)
*
Reel and cable weight (kg)
*
Cable length per Reel (m)
*
'B'
'C'
Total quantity required (m) Cable reel diameter (mm)
*
Cable reel width (mm)
*
Maximum pulling tension (kN)
*
Minimum bending radius (mm)
*
11TMSS10R0/YM
Date of Approval: March 18, 2006
PAGE NO. 13 OF 14
TRANSMISSION MATERIALS STANDARD SPECIFICATION
7.0
11-TMSS-10, Rev. 0
DATA SCHEDULE
POWER AND/OR CONTROL CABLE, COPPER OR ALUMINUM CONDUCTOR, 600/1000V RATING A.
ADDITIONAL TECHNICAL INFORMATION OR FEATURES TO BE FURNISHED BY SEC:
B.
ADDITIONAL SUPPLEMENTARY DATA OR BIDDER/VENDOR/SUPPLIER/CONTRACTOR:
B.
OTHER PARTICULARS TO BE FILLED UP BY BIDDER/VENDOR/SUPPLIER/ CONTRACTOR:
FEATURES
Actual Manufacturer of Equipment/Material
PROPOSED
BY
Vendor/Supplier/ Contractor
Name of the Company Location and address
Name and Signature of authorized epresentative and date
Official Seal/Stamp of the Company & Date
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Date of Approval: March 18, 2006
PAGE NO. 14 OF 14
