Many friends always encounter the problem of how to identify the radiation cross-linked low-smoke halogen-free flame-retardant wire cable when purchasing cables for the project. Here are some precautions for Guangxi wire cable. Several simple methods to identify radiation cross-linked low-smoke halogen-free flame retardant wire cable:Guangxi wire cable

1. Look at the product name identification

Wire - low smoke halogen free flame retardant cross-linked polyolefin insulated wire cable (WDZ-BYJ);

Cable - XLPE insulated low smoke halogen free flame retardant polyolefin sheathed power cable (WDZ-YJE). imitations usually have a slightly different name.

2. Skin burning method

Guangxi cable suggests that there should be no obvious depression in the insulating layer by ironing it with an electric iron. If there is a large depression, it means that the material process used for the insulating layer is defective.

use a lighter to grill. Under normal circumstances, it should be easy to ignite. After a long time of burning, the insulation layer of the cable is still relatively complete, there is no thick smoke pungent odor, the diameter has increased. If it is very easy to ignite, you can be sure that the insulation of the cable is made of low-smoke halogen-free material (most likely polyethylene cross-linked polyethylene material).

If there is a lot of smoke, it means that the insulation layer is made of non-low smoke material. If the insulation surface falls off seriously the diameter does increase significantly after burning for a long time, it means that the appropriate cross-linking process has been carried out.

3. Hot water immersion method

Soak the core cable in hot water at 90°C. Under normal circumstances, the insulation resistance will drop rapidly remain above 0.1MΩ/Km. If the insulation resistance drops sharply even lower than 0.009MΩ/Km, it means that there is no proper cross-linking process. (Polyethylene cross-linked polyethylene insulation materials are identified by this method, can be identified by the method in the second item above).

4. Density Contrast Method

The density of low-smoke halogen-free materials is usually higher than that of water. You can peel off a little insulating layer put them in water. If they float above the water surface, they are definitely low-smoke halogen-free materials.Guangxi cable

Irradiation cross-linked low-smoke halogen-free flame retardant wire cable has been widely recognized by electricians electrical practitioners for its excellent comprehensive electrical physical properties, has been used in a series of landmark buildings such as subways, tunnels, supermarkets, doctors. Show good market prospects.

But what is worrying is that some imitation even counterfeit products have been found in recent years, which seriously threatens the engineering quality engineering image of key construction projects.

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