1.Manufacturing standard: GB/T 12706-2002 2.Application:The products are used for electric power transmission systems, operating at A.C rated voltage 35KV and below. 3.Environmental conditions: 1)Max. rated temperature of the cable conductor for PVC insulated cable is 70℃, for XLPE insulated cable is 90℃. 2)The max. short-circuit temperature of the cable conductor for PVC insulated cable shall not exceed 160℃, for XLPE insulated cable shall not exceed 250℃.(Max. sustaining period not exceeding 5s) 3)During installation,the temperature shall not be lower than 0℃. 4)Permitted min. bending radius of the cable: Single core cable:20(D+d)±5% mm; Multi-core cable:15(D+d)±5% mm. Remarks:D-the actual outer diameter of the cable; d-the actual outer diameter of the conductor.