1.Manufacturing standard: MT 818-1999. 2.Application: The products are suitable for all kinds of equipments in coal mining as power connecting cable,rated voltage up to and including 8.7/10KV. 3.Environmental conditions: 1)The rated voltage Uo/U is 0.38/0.66KV, 0.66/1.14KV, 6/10KV and 8.7/10KV. 2)Permitted maximum continuous working temperature of the cable is 65 centigrade. 3)The minimum bending radius of the cable shall be 6 times of the outer diameter.