The decoration of modern office buildings, hotels, restaurants, railway stations and other important public places is more and more luxurious, and the use of fuel is more and more; The country's large and medium-sized cities have built subway lines, such as these important public places require once the fire conditions, the wire can be a normal flow of electricity, transmission of various control signals and alarm signals for people to escape, automatic alarm, fire facilities start, rescue and emergency equipment use to provide valuable time, The fire-resistant wire is to ensure that the line is powered on normally in a certain time when the fire occurs, and to transmit various control signals and alarm signals. In order to meet the normal power supply of the channel lighting, emergency broadcast, fire alarm device, automatic fire fighting facilities and other emergency equipment in case of fire, so that personnel can be evacuated in time and the rescue work can be carried out normally. Therefore, the reliability of fire-resistant wires is very important.

Some people think that fire-resistant wires are non-burning wires, in fact, fire-resistant wires are not non-burning, fire-resistant wires are in the event of a fire, still can ensure that the line in a certain period of normal power, that is, under a certain flame temperature burning conditions; Normal transmission of power, transmission of various control signals, alarm signals within a certain time, so that lighting, fire alarm devices and other emergency equipment can continue to power within a certain time, so that rescue work can be carried out normally.