The fire resistance wire is a wire that can continue to operate in the presence of a fire, and meanwhile, it can maintain the integrity of wire and cable lines and the normal operation of the line equipment. All insulating layers of the fire resistance wire are attached with close-fitting etchant, and the stripped edges are clean and tidy. This wire is widely used in high temperature and fire resistant environment.

This kind of fire relies on the fire-resistant and heat-resistant characteristics of the mica material in the fire-resistant layer to ensure that the cable works normally even in a fire. The Fire Resistant wire may be categorized according to the requirements for fire resistance characteristics which they meet, the test temperature selected and the duration of the test for resistance to fire alone.