Medium Voltage Cable
Medium Voltage Cable
Medium voltage cable refers to the power cable with a rated voltage between 6kV and 35kV, which is usually used to transmit medium voltage power. Medium voltage cables typically consist of one or more copper or aluminum conductors, insulation, sheathing, and other accessories. The conductors of medium voltage cables are usually copper or aluminum, because these materials have good electrical conductivity and mechanical strength. The insulation layer is usually made of polyethylene, crosslinked polyethylene, rubber and other materials to ensure the insulation performance of the cable. The sheath protects the cable from mechanical damage and environmental impacts. In the power system, the importance of medium voltage cable is self-evident.
Medium voltage cables can be classified according to different standards and uses, the following are some common classification methods:
According to the conductor material classification: the conductor of the medium voltage cable is usually copper or aluminum, so it can be divided into copper conductor medium voltage cable and aluminum conductor medium voltage cable.
According to the insulation material classification: the insulation layer of medium voltage cable is usually made of polyethylene, crosslinked polyethylene, rubber and other materials, so it can be divided into polyethylene insulated medium voltage cable, crosslinked polyethylene insulated medium voltage cable and rubber insulated medium voltage cable.
According to the structure classification: the structure of medium voltage cable can be divided into single core medium voltage cable and multi-core medium voltage cable. Single-core medium voltage cable has only one conductor, which is suitable for conveying single-phase power; Multi-core medium voltage cable has multiple conductors and is suitable for transporting three-phase power.
Classification by use: Medium voltage cables can be classified according to different uses, for example, medium voltage cables for urban power grids, industrial medium voltage cables, mining medium voltage cables, petrochemical medium voltage cables, etc.
The application fields of medium voltage cable are very wide, covering many fields such as urban power distribution, rural power grid, mining power system, rail transit system and so on. With the needs of national development, the application field of medium voltage cable is more and more extensive.
Quality control
The quality of medium voltage cable is directly related to the normal operation of power system and the safety of electricity use. In the production process, the quality control of medium voltage cable is very important. Production enterprises through the development of strict quality control standards, the use of high-quality raw materials, strengthen production supervision, ensure the quality of products, to avoid unstable power signals lead to problems in the power system.
Medium voltage cable is a very important part of power system. Its quality and reliability directly affect the stability of power transmission and the safety of electricity use. Only through strict quality control can high-quality medium voltage cables be produced to meet the needs of different fields and contribute to the development of the economy and society.
