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The long-time permissible working temperature of cable conductive core is not more than 70 degrees.

2.During short circuit (max permanent time is not more than 5 seconds), the max temperature of cable conductor is not more than      165°C.3.The difference level of laying cable is not restricted.When laying the cable,ambient temperature is not lower than 0°C.4.They have  good chemical stability,and properties of acid resistance,alkali resistance,salt resistance,oil resistance,solvent resistance and flame resistance.