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600/1000V Single Phase Concentric Cable With Stranded Copper Wire Neutral Conductors

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600/1000V Single Phase Concentric Cable With Stranded Copper Wire Neutral Conductors

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001

600/1000V Single Phase Concentric Cable With Stranded Copper Wire Neutral Conductors
 

1. SCOPE 

This Kenya Standard specifies requirements and dimensions for PVC-insulated single phase concentric cables for operation on an earthed neutral system at nominal voltages up-to and including 1 000 V between phases and 600 V to earth. The cables have a central phase conductor insulated with red PVC and a concentric layer comprising bare wires (neutral conductor). In any one cable both the phase and neutral conductors are of the same material i.e. both copper or both aluminium.

The cables are suitable for underground or general use in situations where the combination of ambient temperature and temperature-rise due to loading current results in a conductor temperature not exceeding 70 °C.

 

 2. REFERENCES 
The following standard contains provisions which, through reference in this text constitute provisions of this specification. Unless otherwise stated, the latest editions (including amendments) apply. 
ISO 9001: Quality Management System-Requirements 
ISO/IEC 17025: General requirements for the competence of testing and calibration laboratories. 
KS 04-1022:- Kenya Standard Specification for 600/1000V PVC-insulated single-phase 
concentric cables with copper or aluminum conductors for electricity supply.

 

3 .STANDARD SIZES AND CHARACTERISTICS 
The characteristics of the cables shall comply with table

Phase Conductor

Concentric

neutral

conductor

Minimum

lay length

mm

Oversheath

Thickness

mm

Approx.

overall

diameter

mm

Maximum

conductor dc

resistance per

1000m of cable

at 20°C

Nominal

area mm²

No. /Dia.

mm

Insulation

Thickness

mm

No. /Dia.

mm

Phase

ohms

Neutral

ohms

4

7/0.85

1.55

24/0.85

59

1.4

9.75

4.61

1.343

6

7/1.04

1.55

26/0.85

63

1.4

10.72

3.08

1.24

10 7/1.35 1.55 29/0.85 71 1.4 11.73 1.83 1.151

16

7/1.70

1.55

26/1.13

84

1.4

12.78

1.15

1.0074

25

7/2.14

1.60

29/1.13

95

1.5

14.88

0.727

0.629

35

19/1.53

1.65

27/1.35

109

1.6

16.75

0.524

0.473

CONCENTRIC CABLE SELECTION

Please contact us for technical support with the right cable selection for your power distribution projectsand to discuss your maintenance or project specific requirements.

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