1、 Executive standard: GB / T 12706.1 ~ 2 - 2008
2、 Purpose: suitable for power lines with rated voltage of 3.6/6kv and below.
3、 Service conditions:
1. The maximum temperature of cable conductor is 70 ° C;
2. In case of short circuit (the longest duration is not more than 5 s), the cross section of cable conductor is less than or equal to the maximum temperature of 300 mm conductor
Not more than 160 ° C, and the maximum temperature of the conductor whose cross-section is more than 300 mm shall not exceed 140 ° C;
3. When laying cables, the ambient temperature shall not be lower than 0 ° C, and the minimum bending radius is as follows:
Single core cable - 20d mm
Multicore cable - 15d mm
Where: D -- actual outer diameter of cable, mm