Fire-resistant power cable is a general term for wires and cables with fire-resistant function. They are usually divided into flame retardant power cables and fire resistant wire cables. However, there are often many people who cannot distinguish between flame-retardant cables and fire-resistant cables, and often confuse them. The following Tianxing cable Xiaobian will give you a detailed explanation of the difference between flame-retardant power cables and fire-resistant power cables.

Tianxing cable to distinguish the difference between flame retardant power cables and fire resistant power cables for you

Flame-retardant power cable is a kind of fire-resistant cable with better performance. It is machined from a copper core, copper sheath and magnesium oxide insulation material called MI (Mineral insulated cable). Cables are composed entirely of inorganic materials. The refractory layer and the refractory layer of ordinary refractory cable are composed of inorganic and general organic matter. Therefore, the fire resistance of MI cable is better than that of ordinary fire resistant cable, and corrosive gases will not be produced by incineration. MI cable has good fire resistance, can work for a long time at a high temperature of 250℃, and has explosion-proof, corrosion resistance, large current load, radiation resistance, high mechanical strength, small size, light weight characteristics. However, it is expensive and difficult to construct. This fire-resistant cable can be used in oil-irrigated areas, important wooden public buildings, high temperature places and other occasions with high fire resistance requirements and acceptable economic performance.

Fire resistant cable Fire resistant cable is divided into type A and type B, type A fire resistance is better than type B. Class B cables can withstand 90 minutes of incineration in a flame of 750 ° C to 800 ° C, and no voltage is generated when the cable is disconnected (that is, 3A fuses will not be blown). On the basis of improving the manufacturing process of refractory layer and adding refractory layer, Class A refractory cable is developed. It can withstand incineration for at least 90 minutes in a flame of 950 ° C to 1000 ° C, and the additional voltage will not damage the cable (i.e. the 3A fuse will not blow).

The difference between flame-retardant power cables and fire-resistant cables. Flame retardant cables maintain the electrical, physical and chemical functions of ordinary cables. They will self-extinguish, or when the cable ignites itself or the external fire source ignites, the fire will not continue to burn after the subside, or the burning time is very short, or the extended burning time is very short.

Qingdao Tianxing Cable Co., Ltd. is a technology enterprise specializing in the production of wire and cable in Shandong Province, with more than 150 sets of domestic excellent cable production equipment and testing equipment, excellent production technology, modern testing equipment, to ensure stable product quality and timely supply. The company's main products are power cable, mineral cable, high life wire and cable, radiation crosslinked cable, control cable, computer cable, photovoltaic cable, communication cable, data cable, low smoke halogen free cable, flame retardant series wire and cable.