Jinhuanyu wire and cable: can flame-retardant cable really not burn?
What kind of flame retardant cable do you imagine? Is it totally incombustible? In fact, it is not. Compared with ordinary cables, flame-retardant cables will have a higher ignition point, and will not catch fire like ordinary cables. Today, Jin Huanyu wire and cable editor will talk with you:
In case of wire and cable fire, flame-retardant cable can limit the combustion to a local range and extinguish it within a certain time without spreading, so as to protect other equipment and avoid greater losses.
Flame retardant cable is a new type of cable with flame retardant characteristics developed according to the actual production needs in recent years. This product is suitable for occasions with flame retardant requirements in fixed laying power transmission and distribution systems. For example: cable tunnel, cable interlayer, main control room, command center and other important occasions.
The structure of flame-retardant cable is the same as that of ordinary cable, with no difference in insulation materials. For example, the flame-retardant cable of Jinke Cable uses self-developed environment-friendly materials that do not contain any halogens and other toxic substances as insulation materials, so it also has low smoke generation and harmlessness. There is little smoke when burning, and no corrosive gas escapes, In case of fire, it is more conducive to our escape and has a safer guarantee for our lives.
According to the standards and requirements for flame retardancy test of cables, when flame retardant cables burn in bundles, the flame temperature exceeds 815 ℃, and the fire supply time is 40min. The performance requirements are: after the fire supply is stopped, the combustion should be extinguished naturally; Then wipe the sample, ignore the softening and deformation of any non-metallic materials, and measure the carbonization (combustion) length of the sample, which shall not exceed 2500mm. The flame-retardant cable of Jinke Cable adopts non oxide copper core, which has the advantages of high purity, low oxygen content, high conductivity, good processing performance, smooth appearance, round surface, no burr, crack, peeling and inclusion defects.
It can be seen that the flame-retardant cable has the characteristics of small combustion range in case of fire and self extinguishing in case of fire. It is not flame retardant cable that will not burn. When the current passes through the conductor, the existence of conductor resistance will cause conductor heating, which is called the thermal effect of current.
Using the thermal effect of current, various heating appliances can be made, such as electric furnaces, welding machines, ovens, electric soldering irons, electric irons, etc. This is a favorable aspect of the thermal effect of current. But in many cases, the thermal effect of current is harmful. For example, transformers, motors and cables will heat up due to the thermal effect of current during operation. If the current is not limited, the equipment will be damaged because its temperature rise exceeds the allowable limit.
The above content is Jinhuanyu wire and cable: will the flame retardant cable really not burn? I hope it will be helpful to everyone. To learn more about wires and cables, please visit the website of Shenzhen Jinhuanyu Wire and Cable Co., Ltd!
