Concentric Cable Copper S/C 10 16 25 Sq. mm PVC Insulated Single Phase Cu PVC
Concentric Cable Copper S/C 10 16 25 Sq. mm PVC Insulated Single Phase Cu PVC image
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Basic Info.
Product Description
SPECIFICATION FOR PVC INSULATED SINGLE PHASE CONCENTRIC COPPER CABLES (LOW VOLTAGE)
1. SCOPE
1.1 This specification is for PVC insulated single phase concentric cables with circular stranded copper conductors for operation up to and including 1000 Volts between phases
and 600 Volts to earth. The cable shall have a central phase conductor insulated with red PVC and concentric layer comprising bare wires (combined neutral-earth conductor),
both copper.
1.2 This specification covers the following sizes:-
10 sq. mm PVC insulated single phase concentric Copper cable
16 sq. mm PVC insulated single phase concentric Copper cable
25 sq. mm PVC insulated single phase concentric Copper cable
2. REFERENCES
The following documents were referred to during the preparation of this specification. In cases of conflict, the provisions of this specification shall take precedence.
Unless otherwise specified, the latest revision, edition and amendments shall apply. IEC 60502-1:- Power Cables with extruded insulation and their accessories for rated
voltages from 1kV (Um = 1.2kV) up to 30kV (Um = 36kV) – Part 1: Cables for rated voltages of 1kV (Um = 1.2kV0 and 3kV (Um = 3.6kV).
KS 04-1022:- Kenya Standard Specification for 600/1000V PVC-insulated single-phase concentric cables with copper or aluminum conductors for electricity supply.
3. MATERIAL AND CONSTRUCTION
3.1. The cable shall be designed and manufactured in accordance with IEC 60502-1 and Kenya Standard KS 04-1022.
3.2. Phase Conductor
3.2.1 The phase conductor shall be circular stranded annealed copper conductors (class 2) as specified in KS 04-1022. The phase conductor shall have a left-hand direction of lay.
3.2.2 The insulation of the phase conductor shall be red PVC compound specified in KS 04-1022. It shall be applied by an extrusion process and shall be spark tested in accordance with KS 04-1022.
3.2.3 The thickness of insulation, determined in accordance with KS 04-1022, shall be not less than the value given in Table 1 of this specification and the smallest of the measured values shall not fall below the value given in the said table by more than (10% + 0.1mm).
3.3. Concentric Layer
3.3.1 The neutral conductor shall be concentric and shall be manufactured from plain annealed copper wires in accordance with KS 04-1022. The number of wires and the resistance of the neutral conductor shall comply with Table 1 of this specification.
3.3.2 The concentric layer shall be applied with a right hand direction of lay.
3.4. Oversheath
3.4.1 The oversheath shall be an extruded layer of black PVC compound as specified in KS 04-1022. The oversheath shall be spark tested in accordance with KS 04-1022.
3.4.2 The minimum thickness of the oversheath shall not fall below the value given in Table 1 of this specification by an amount more than (15% + 0.1mm).
Dimensional Data
No Of Cores | Size (mm) | Conductor Stranding | Overall Diameter (mm) | Weight (kg/km) |
1 | 4 | 7/0.85 | 151 | |
1 | 6 | 7/1.04 | 9.3 | 185 |
1 | 10 | 7/1.35 | 11.0 | 280 |
1 | 16 | 7/1.7 | 12.10 | 397 |
1 | 25 | 11/1.7 | 14.4 | 596 |
1 | 35 | 15/1.7 | 16.0 | 789 |
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