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Time: 2017-02-17

Flame retardant cable

Flame retardant cable, as the name suggests, is the combustion, the spread of fire can be controlled in a certain range, and in a certain period of time to put out. This feature, combined with the low cost of the cable, makes the flame retardant cable widely used in the laying of fire cables. Perhaps, many people can not tell the difference between flame retardant cable and fire resistant cable, in fact, their respective characteristics are: flame retardant cable insulation, sheath, etc are using flame retardant properties of materials; The refractory cable is added with a refractory layer.

You might wonder, do flame-retardant cables really stop fires from spreading? How do you know if you're buying a flame-retardant cable? In accordance with the provisions of the experimental standards, the fire source removed, can be extinguished within a period of time is qualified flame retardant cable, but also need to check the flame retardant cable, that is, product specifications, laying mode and self-extinguishing time.

The market characteristics

As we all know, wire and cable are everywhere in People's Daily life, so the use of wire and cable will inevitably occur in the case of fire, so how to fire emergency? First of all, to close the main switch of the switch, cut off the power supply, because the fire of electrical appliances or lines may have been live, not power switch, will aggravate the fire, electric shock accident; Secondly, if the power cannot be cut off in time due to special reasons, choose non-conductive extinguishing agent, such as common carbon dioxide, 1211 fire extinguisher and so on. Finally, when putting out a fire, pay attention to the shortest distance. The voltage determines the shortest distance from the nozzle to the charged body. If larger buildings or objects catch fire, the safest way to prevent the spread of fire is to use a fire sense and automatic sprinkler device, can also be installed in the walls or iron pipe cable inside.

The installation of cables is so important that special attention should be paid to the following aspects when selecting and laying flame-retardant cables:

First of all, when low-halogen and low-smoke flame-retardant cables are on fire, they will emit halogen acid gas, which is corrosive and will increase the workload of firefighters, possibly delay the time of extinguishing the fire and bring a lot of unnecessary losses. Therefore, in public places with large number of people, non-halogen low-smoke flame-retardant cables should be laid, which can increase the safety factor of public places.

Second, there are three types of flame retardant cables, class A, B and C3. The appearance can not distinguish the category, so choose, choose the normal cable manufacturers.

Thirdly, halogen-free and low-smoke flame-retardant cables with low corrosion and smoke should be laid with a larger bending radius.

At present, cable fires often occur in power production sites, because the cables used in these places are all over every corner, some corners of the environment is harsh, using tunnels or overhead laying, layout density is relatively high, plus the cable in the process of operation in the state of heat. All these factors accelerate the market demand for flame retardant cable.

It is generally accepted that all kinds of losses caused by fires in buildings are caused by the use of inferior wires and cables. Therefore, regardless of the size of the wire and cable enterprises pay attention to the real cause of cable fire, pay attention to the production quality of cable products, but also to carry out effective fire control, to ensure a safe production environment.