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Types and properties of common flame-retardant wires and cables
Latest company news about Types and properties of common flame-retardant wires and cables

1. Ordinary flame-retardant wires and cables
The insulating and sheathing materials of ordinary flame-retardant wires and cables are generally polymer materials containing halogen (or modified by adding halogen containing flame retardant). Polyvinyl chloride (PVC) is commonly used. Ordinary PVC resin has the characteristics of high electrical insulation, chemical resistance, abrasion resistance, aging resistance and low price. However, when PVC burns, it will release hydrogen chloride, carbon monoxide, carbon dioxide, various aromatic hydrocarbons, chlorinated compounds and other toxic and harmful gases.


2. Low smoke halogen-free flame retardant wire and cable
The insulation and sheath materials of low smoke and halogen-free flame-retardant wires and cables are mostly thermoplastic elastomer materials, which do not contain halogens such as fluorine, chlorine, bromine and iodine. Mercury, chromium, cadmium, lead and other heavy metal elements that pollute the environment are excluded from the production process. Polyamide is often used as the material. The flame-retardant mechanism of this cable is that of interrupt switching. Interrupted exchange flame retardant refers to taking away part of the heat generated during the combustion of flame retardant materials, so that the materials can not maintain the thermal decomposition temperature, and therefore can not continue to produce combustible gas, so the combustion is self extinguished.

 

Zhenglan Cable Technology Co., Ltd manufacture flame retardant wire, low smoke halogen-free flame retardanet wire, fire resistant wire, flame retardant and fire resistant wire. Welcome your inquiry.

 

Pub Time : 2022-11-05 15:43:42 >> News list
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