Wire and cable professional manufacturers: introduction to the basic knowledge of wire and cable

Release time: 2022-09-05 10:25

【Summary Description 】 Wire and cable professional manufacturers: the role of wire and cable is to transmit electromagnetic energy, signal and electromagnetic conversion, for power installation engineering, such as wire and cable, overhead cable, etc. Today, wire and cable professional manufacturers will take you to learn some knowledge of wire and cable.

Wire and cable professional manufacturers: the role of wire and cable is to transmit electromagnetic energy, signal and electromagnetic conversion, for power installation engineering, such as wire and cable, overhead cable, etc. Today, wire and cable professional manufacturers will take you to learn some knowledge of wire and cable.

Cable wire is generally composed of conductor, insulation layer, shielding layer, protective layer four parts: 1, conductor is short for wire and cable conductive core, is the core part of the cable, used to conduct electricity, to achieve the basic function of the wire. Conductors are made of copper, aluminum, copper-clad steel, copper-clad aluminum and other non-ferrous metals with excellent electrical conductivity. 2, the insulation layer is an indispensable part of the cable structure, it will be the conductor and the earth and different phases of the conductor electrical isolation, to ensure power transmission. At the same time, it is also an important link to protect the wire, protect the human body, avoid direct contact with the wire and reduce 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, which can be said to be a kind of "electromagnetic isolation screen". 4. Protective layer. Wire and cable in the process of use, the insulation layer to the outside protection ability is still insufficient, its more prominent feature is electrical insulation. Therefore, the protective effect of insulation layer is limited to corrosion, aging, external force, 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 capability.

电线电缆专业生产厂家:电线电缆的基础知识介绍

Wire and cable professional manufacturers: I believe that many people can not tell the meaning of the English letters and models on the cable, a variety of cables and wires in the laying process is generally not allowed to bare. Protective covers etc. are needed to protect cables and wires. Today, professional manufacturers of wire and cable will sort out the models, specifications and actual effects of wire and cable for you, so that you can learn how to identify!

According to the number of power cables in the mutually fixed cable sheath, the insulated cables can be divided into single copper core cables and multi-copper core cables. Multi-core copper cables can also be secured with several single-core copper cables in an insulating sheath, and there can be up to 24 multi-core copper cables in the same sheath. Vertical multi-copper cables are denoted by "B" and stranded multi-copper cables by "S". Insulated wire can be divided into single wire and multi-core copper cable according to its share in each power line. Generally, the insulated cable of the cable with more than 6 square meters is multi-core copper cable. The insulated cable of the cable with less than 6 square meters can be single or multi-core copper cable. A cable measuring 6 square meters or less is called a single hard cable, and a multi-core copper cable is called a copper cable. Hard wires are denoted by "B" and copper wires by "R". There are two common materials for cable sheathing: high voltage polyethylene and high density polyethylene. High-pressure polyethylene is represented by "V" and high-density polyethylene is represented by "Y".

The above content is some knowledge of wire and cable organized by professional manufacturers of wire and cable. I believe that if you understand the above knowledge, you can easily and quickly see the meaning of cable models, specifications and models.