wire and cable

W refers to halogen-free, d refers to low smoke, z refers to flame retardant, n refers to fire resistance, so the general name of wire wdzn is halogen-free low smoke flame retardant and fire-resistant wire. The main feature is that the insulating skin is made of halogen substances, so even in the burning state, it will not produce smoke and halogen gas, and is suitable for use in densely populated public places, such as hospitals and libraries.

Classification of wire and cable wdz

Bare wire body: This kind of wire has no insulation skin, only pure metal conductor, which is directly processed by pressure, such as steel-cored aluminum stranded wire, electric locomotive wire, etc. Because there is no insulation layer protection, it is basically not used in power lines now; Power cable: the main features are that the metal conductor is protected by an insulating layer, with high safety performance, and the manufacturing process is relatively complex, including drawing, stranding, wrapping, armor, etc. According to the different types of power cable, its processing process will have certain differences; Wire and cable for electrical equipment: there are many specifications and types, and the application range is very wide, especially in the circuit of 1kv and below. In addition, the wire can also be derived according to the needs of the situation, such as the wdzn wire mentioned above; Winding wire: refers to the conductive metal wire used to wind the coil or resistance. Because when the current passes through the wire, it will generate a magnetic field, so this kind of wire is also called electromagnetic wire. Generally, there will be an insulating layer on the surface.

Characteristics of wire and cable wdz

Wdzn has the characteristics of low halogen and low smoke, halogen-free and low smoke, and has good flame retardancy. This kind of cable is generally not easy to be burned by fire, and can also effectively prevent the spread of fire. Even if it is burned by fire, it is non-toxic, low smoke, halogen-free and non-corrosive, so it is widely used in hospitals, oil, power plants, subways and other places.