The difference between WDZ cable and WDZN cable

1. The main difference between WDZ and WDZN cables is that the WDZN fire-resistant cable conductor is wrapped with a layer of mica tape, allowing the cable to maintain normal power supply for a period of time under combustion conditions.

2. The main characteristic of WDZ flame-retardant cables is that they are not easily ignited or have delayed ignition, which is limited to a certain range. They are suitable for power stations, subways, tunnels, high-rise buildings, large industrial and mining enterprises, oil fields, coal mines and other places with high cable laying density.

3. The main characteristic of WDZN fire-resistant cables is that they can not only transmit electricity under normal working conditions, but also maintain normal operation for a certain period of time in the event of fire and combustion. They are suitable for places related to fire safety and fire rescue, such as nuclear power plants, subways, tunnels, high-rise buildings, etc.

4. The principle of fire-resistant cables is different from that of flame-retardant cables: the flame-retardant principle of halogen-containing cables relies on the flame retardant effect of halogens, while the flame-retardant principle of halogen-free cables relies on reducing the temperature of water to extinguish the fire; Fire resistant cables rely on the fire-resistant and heat-resistant properties of the mica material in the fire-resistant layer to ensure that the cable can also function properly in the event of a fire.