Introduction to Basic Knowledge of Wire and Cable
The function of wires and cables is to transmit electromagnetic energy, signals, and electromagnetic conversion, used in power installation projects, such as wires and cables, overhead cables, etc. Today, professional manufacturers of wires and cables will take you to learn some knowledge about wires and cables.
Cable and wire are generally composed of four parts: conductor, insulation layer, shielding layer, and protective layer: 1. Conductor is the abbreviation for the conductive core of wire and cable, which is the core part of the cable used for conducting electricity and achieving the basic functions of the wire. Conductors are made of non ferrous metals with excellent conductivity, such as copper, aluminum, copper clad steel, and copper clad aluminum. 2. The insulation layer is an indispensable part of the cable structure, which electrically isolates the conductor from the earth and conductors of different phases to ensure power transmission. It is also an important part of protecting wires, protecting the human body, avoiding direct contact with wires, and reducing the occurrence of safety accidents. 3. The shielding layer can isolate the electromagnetic field in the wire and cable from the external electromagnetic field or the electromagnetic field between different wires in the wire and cable, and can be said to be a "electromagnetic isolation screen". 4. Protective layer. During the use of wires and cables, the insulation layer still lacks the ability to protect the outside world, and its more prominent feature is electrical insulation. So the protective effect of the insulation layer is limited to corrosion, aging, external forces, external impurities, water intrusion, and even corrosion aging. The protective layer is used to protect the cable from such intrusion and damage, and also to protect the insulation layer to strengthen its anti-aging ability.
Cable and wire are generally composed of four parts: conductor, insulation layer, shielding layer, and protective layer: 1. Conductor is the abbreviation for the conductive core of wire and cable, which is the core part of the cable used for conducting electricity and achieving the basic functions of the wire. Conductors are made of non ferrous metals with excellent conductivity, such as copper, aluminum, copper clad steel, and copper clad aluminum. 2. The insulation layer is an indispensable part of the cable structure, which electrically isolates the conductor from the earth and conductors of different phases to ensure power transmission. It is also an important part of protecting wires, protecting the human body, avoiding direct contact with wires, and reducing the occurrence of safety accidents. 3. The shielding layer can isolate the electromagnetic field in the wire and cable from the external electromagnetic field or the electromagnetic field between different wires in the wire and cable, and can be said to be a "electromagnetic isolation screen". 4. Protective layer. During the use of wires and cables, the insulation layer still lacks the ability to protect the outside world, and its more prominent feature is electrical insulation. So the protective effect of the insulation layer is limited to corrosion, aging, external forces, external impurities, water intrusion, and even corrosion aging. The protective layer is used to protect the cable from such intrusion and damage, and also to protect the insulation layer to strengthen its anti-aging ability.
