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1. Product Standard
GB12972-1991 "Rubber-sheathed Flexible Cable for Mining". Flame-retardant cables implement MT818-1999 "Flame-retardant cables for coal mines", and the flame-retardant performance test is implemented according to MT386-1995. For old-type cables and non-flammable cables with flame-retardant requirements, the words "MT386" or "flame-retardant" should be added when ordering.
2. Use characteristics
The long-term allowable working temperature of the cable conductor is 65℃.
Three, product performance
The insulation resistance constant Ki (20℃) of the finished product: should not be less than 734MΩ.km; the DC resistance of the finished conductor except for the electric drill cable should meet the requirements of the fifth soft copper conductor in GB/T3956-1997.
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