Executive standard   
GB/T12706.1(equal to IEC60502)

Working conditions 
 　1.  Long-term working temperature of the cable should be no higher than 70℃.   
 　2.   The conductor temperature should be no higher than 160℃ at time of short circuit (It lasts no more than 5S).  
 　3.   Environment temperature should be no lower than 0℃ for laying the cable. 





Cable Length  
 It depends on final both agreements with ±0.5%