Product Name: 0.6/1kV PVC Insulated Cable 

Standard:

Chinese standard GB/T12706.1-2002, equivalent to IEC60502.

Application:

This product is suitable for rated AC voltage U0/U: 0.6/1kV circuit for transmitting and distributing electricity.

Description and Application:

Technical Data：

Current Carrying Capacity：

Note: The screen-copper-tape and steel wire (including all copper wire for magnetism separation) of single-core steel wire armored power cable for AC system must be connected to earth well and effectively. 
The current carrying capacity is calculated by formulas of IEC. It is advised in the new edition of GB/T12706 that the current carrying capacity of steel wire armoured power cable with special structure is lower than that in IEC standard, so the cross-section should be enlarged appropriately.

Installation and Operation Condition:

In the Air
The distance between centers of single-core cables laid in parallel: cross-sectional area of conductor≤185mm²: 2 times of the cable diameter; cross-sectional area of conductor≥240 mm²: 90mm.
Circumstance air temperature: 40℃.
Max. continuous operating temperature of conductor:70℃.

Current carrying rating factors for different circumstance air temperature:

Direct in the Ground
The single-core cables are installed separately, the distance between the cable center is 2 times of the cable diameter.
Soil temperature: 25℃.
Max. continuous operating temperature of conductor: 70℃.
Thermal resistivity of soil:　1.0℃.m/W.
Depth of direct-buried: 0.7m.

Current carrying rating factors for different soil temperature: