6/10kV CU/XLPE/STA/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, double steel tape armoured, PVC or PE outer sheath.

Type	Description	No. of cores	Nominal cross section of conductor
YJV22	Copper conductor/XLPE insulation/Steel Tape Armoured/PVC outer sheath Power Cable	1 or 3	25~800mm2
YJV23	Copper conductor/XLPE insulation/Steel Tape Armoured/PE outer sheath Power Cable	1 or 3	25~800mm2
ZA-YJV22 ZB-YJV22 ZC-YJV22	Copper conductor/XLPE insulation/Steel Tape Armoured flame-retardant Power Cable	1 or 3	25~800mm2
WDZA-YJY23 WDZB-YJY23 WDZC-YJY23	Copper conductor/XLPE insulation/Steel Tape Armoured Low Smoke Halogen Free or Zero Halogen (LSHF or LSZH) flame-retardant Power Cable	1 or 3	25~800mm2

Operating Characteristics
Rated voltage U₀/U(U_m): 6/10(12)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;
U_m 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, but unable to bear large pulling force.

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