1 ISO,CCC,IEC, ASTM, DIN, BS standard 2 3 Response within 12 hours 3 3x240 LV MV HV power The permitted working temperature of cable conductor for a long time is 90°C. When short circuit (the maximum holding time should not be more than 5 seconds), the highest temperature of cable conductor should not be more than 250°C. The cable should be laid at the condition when ambient temperature is not ...