The so-called WDZ cable and WDZN cable is actually what we often say is a low-smoke halogen-free cable, WDZ is a low-smoke halogen-free flame retardant cable, and WDZN is a low-smoke halogen-free flame retardant refractory cable, the structural difference between the two is that WDZN is a layer of mica tape more than the conductor of WDZ. This mica tape can help the cable to operate normally for a considerable period of time in a burning state.



Number WDZ is the meaning of low smoke halogen-free flame retardant, for example, WDZ-YJV refers to flame retardant low smoke halogen-free copper core cross-linked insulated power cable, and WDZN is in the original halogen-free, low smoke, flame retardant, and has fire resistance, N represents fire resistance.

The cable industry generally refers to the cables with certain fire performance such as flame retardant, halogen-free and low smoke or low halogen and low smoke fire resistance as fireproof cables, which are characterized by delaying the flame along the cable, so as to avoid the expansion of the fire. Considering its safety protection, the demand in the market is also great.

Many people can not distinguish the concept of flame-retardant cable and fire-resistant cable, from its use characteristics, fire-resistant cable can replace flame-retardant cable, but flame-retardant cable can not replace fire-resistant cable. That's because they just don't work the same way.

The working principle of flame retardant cable is achieved by the flame retardant effect of halogen, and there is a halogen-free flame retardant cable. It is the use of precipitated water to reduce the temperature, but the working principle of fire-resistant cables is different from that of flame-retardant cables. The material of the refractory cable contains a mica material, which has a very high fire resistance and can ensure normal use in the fire.

Understand the difference in the working principle of the two can be seen, flame retardant cable is also afraid of fire, just because there are flame retardant materials, so that the fire can be killed in the cradle, and the fire cable is different, its own fire layer structure, in the fire can also maintain normal work, so in many cases, fire resistant cable can be used to replace flame retardant cable.

So in addition to the difference between fire resistance and flame retardant, what are the differences between WDZ and WDZN? The first is the structural difference between the two mentioned at the beginning, the WDZN conductor is wrapped in a layer of mica tape, which is also the key to its fire resistance.

Secondly, because the characteristics of the two are different, so the use of the scene is very different, WDZ because of its flame retardant characteristics, can be burned in the fire is limited to a certain range, so widely used in power stations, subways, tunnels, high-rise buildings and other places. Because of its fire resistance, WDZN can maintain normal operation in the case of combustion, so it is often used in nuclear power plants and some fire-related sites.

Qingdao Tianxing Cable Co., Ltd. focuses on the production of customized wire and cable manufacturers, main: fire wire and cable, power cable, control cable and other products, exported to more than 40 countries and regions around the world, the annual production capacity of 1 billion yuan. 6000 square meters of storage, standing hundreds of millions of inventory, order demand for rapid distribution and delivery, large prices more favorable. Hotline: 16678668098