PVC insulation electric wire         

1 Description
For single core PVC or XLPE insulated or covered aerial cable without messenger or neutral conductor, the phase conductor may be AAC or AAAC or ACSR or Copper.       

For more than one core PVC or XLPE insulated electric wire with or without messenger or neutral conductor and with or without street lighting conductor, the phase conductor and street lighting conductor are AAC with PVC insulation, and the messenger or neutral conductor is AAAC or ACSR with or without PVC(XLPE) insulation.

2 Operating Characteristics

Rated voltage: Up to and including 0.6/1(1.2)kV;  electric wire          

Max. permissible continuous operating temperature of conductor: 90oC(XLPE insulated), 70 oC (PE insulated), 70 oC (PVC insulated);

Max. temperature of electric wire during short-circuit ( 5s max. duration) shall not exceed: 250oC(XLPE insulated), 130 oC (PE insulated), 160 oC (PVC insulated);          

The ambient temperature under installation should not be lower than: -20 oC. 

The bending radius of cable is recommended as following:
When the diameter of cable is less than 25mm: not less than 4 times of the diameter of cable
When the diameter of electric wire is not less than 25mm: not less than 6 times of the diameter of cable
When the cable is used in alternative current system, the rated voltage of cable should be at least equal to the rated voltage of system; when the cable is used in direct current system, the rated voltage of system should not greater than 1.5 times of the rated voltage of electric wire .         

3 Application
PVC or XLPE insulated aerial cable as a new-type aerial cable is used for overhead electric power transmission, extensively used in rebuilding of electric wire and forest region electrified wire netting. It improves the safety and reliance of electrified wire netting.

4 Manufacturing Standards
GB/T 12527-2008, IEC 60502-1, BS 7870-5