Low Voltage Power Cable
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12/20kV CU/XLPE/SWA/PVC



12/20kV CU/XLPE/SWA/PVC(or PE) Power Cable

Description
Construction: Compacted stranded circular copper conductor, extruded semi-conducting compound as conductor screen, cross-linked polyethylene(XLPE) insulation, semi-conducting compound as insulation screen, copper tape or combination of copper wire and tape as metallic screen, three cores assembled together with non-hygroscopic polypropylene filler, wrapped with binder tape, PVC inner covering as armour bedding, steel wire armoured, PVC or PE outer sheath.

Operating Characteristics
Rated voltage U0/U(Um): 12/20(24)kV
U0 is the rated power frequency voltage between conductor and earth or metallic screen for which the cable is designed;
U is the rated power frequency voltage between conductors for which the cable is designed;
Um is the maximum value of the “highest system voltage” for which the equipment may be used.
Max. permissible continuous operating temperature of conductor: 90 °C
Max. temperature of conductor during short-circuit (5s max. duration) shall not exceed: 250 °C
The ambient temperature under installation should not be lower than: 0 °C

The bending radius of cable is recommended as following:
For single core cable: not less than 15 times of the diameter of cable
For three core cable: not less than 12 times of the diameter of cable
When the armoured single core cable used for Alternative Current(AC) system, the armour material should be non-magnetic.

Application
The cable is used for fixed installations such as electric power distribution networks or industrial installations, which is laid indoors, outdoors, in tunnel, in cable trench, or direct in ground, able to bear external mechanical force and certain pulling force.

Manufacturing Standards GB/T 12706-2008, IEC 60502-2

 Type Description No. of cores Nominal cross section of conductor
YJV32 Copper conductor/XLPE insulation/Steel Wire Armoured/PVC outer sheath Power Cable 1 or 3 35~800mm2
YJV33 Copper conductor/XLPE insulation/Steel Wire Armoured/PE outer sheath Power Cable 1 or 3 35~800mm2
ZA-YJV32 ZB-YJV32 ZC-YJV32 Copper conductor/XLPE insulation/Steel Wire Armoured flame-retardant Power Cable 1 or 3 35~800mm2
WDZA-YJY33 WDZB-YJY33 WDZC-YJY33 Copper conductor/XLPE insulation/Steel Wire Armoured Low Smoke Halogen Free or Zero Halogen (LSHF or LSZH) flame-retardant Power Cable 1 or 3 35~800mm2


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