Rated voltage U0/U(Um): 6.35/11(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;
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.
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
|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|