The difference between environment-friendly cable and low smoke halogen free cable
Many places in the key project, such as fire fighting, monitoring, alarm and other places will use low smoke halogen free cable. Usually people will call it environmental cable. In fact, the environmental cable is not a low smoke halogen free cable. The following is the detailed analysis of the difference between the environmental cable and the low smoke non halogen cable.
1. Halogen free:
The use of green insulating layer, sheath and special oxygen barrier material not only has good electrical and physical mechanical properties, but also ensures the product without halogen and solves the "two pollution" of its combustion, and avoids the carcinogenic dioxin when the traditional PVC wire burns.
2. High flame retardancy:
The environmental protection cable fully guarantees its high requirements for fire protection. The cable is not easy to burn in fire, and can prevent the spread of fire and the expansion of disaster after burning.
3, low toxin:
Heavy metals which are harmful to human body in insulation and sheath without lead or cadmium will not pollute soil and water sources when cables are used or disposed of. After severe toxicity tests, the rats were safe under the prescribed experimental conditions.
4. No corrosive gases are produced:
In the production, use process and combustion, HCL and other gases are not produced in the production, use and combustion of the new type of special coating material. The emission of acid gas is less, and the damage to the personnel and equipment and equipment is small, and the environmental protection features are more obvious.
5, waterproof, anti ultraviolet:
Adopt special environmental protection material with molecular structure to ensure super low water absorption. Special UV absorbers make the products have good UV protection function. It ensures the safety and prolong the service life of the products. The first to launch the name of "environmental protection cable" is a Japanese company, its product standard is FN (Ecomaterial) ecological cable standard, in the western countries, the UK has also developed advanced environmental cable standard requirements, and gradually spread to the world.
6. High transmittance:
The smoke generated during the combustion of the cable is very thin, which is conducive to the evacuation of personnel and the work of fire fighting. The transmittance of the product is greater than 40%, far higher than that of the traditional flame retardant category with less than 20% transmittance.
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