What are the insulating materials for wire and cable?

What are the insulating materials of wire and cable?1, oil-impregnated paper-insulated power cables: oil-impregnated paper-insulated power cables. It has a very long history of application. It is safe and reliable, long service life, low price. The main disadvantage is that the laying is limited by the drop. Since the development of non-drop paper-immersed insulation, the problem of fall limit has been solved, oil-immersed paper-insulated cables continue to be widely used. 2, plastic-insulated power cables: extruded plastic-insulated power cables. Commonly used plastics are polyvinyl chloride, polyethylene and cross-linked polyethylene. Plastic cable structure is simple, easy to manufacture and process, light weight, easy to lay and install, not subject to the laying gap. Therefore, it is widely used as medium and low voltage cables, and there is a trend to replace viscous oil-impregnated paper cables. It is a very big drawback is the existence of branch breakdown phenomenon, limiting its use at higher voltages. 3, rubber-insulated power cables: insulation is rubber plus a variety of additives, fully mixed, extruded in the conductive core, and then heated and vulcanized. Soft and flexible, suitable for frequent movement, laying of small bending radius occasions. Commonly used insulating materials are natural rubber - styrene butadiene rubber mixture, ethylene propylene rubber, butyl rubber and so on. The above is the wire factory share about the wire and cable insulation material classification introduction, if you have any questions, welcome to consult Huicheng Yuan Electronic Technology Co.

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