The c-bra overload fire-resistant safety wire independently developed by South cable company has the following features: 1. Overload does not ignite; 2. Short circuit does not burn; 3. Combustion does not short circuit.It is normally powered on after burning at 1000 ℃ for 3 hours, and meets the requirements of fire resistance (950 ℃).
According to the inspection of national building materials quality inspection center, the combustion performance of c-bra-450 / 750V 1 * 2.5 overload fire-resistant safety wire meets the requirements of B1 level, and the additional classification meets the requirements of d0, T0, A1.
According to gb31247-2014, the combustion performance of the product reaches B1 (d0, T0, A1).