Medium-voltage power flexible cable for mobile power station and processing method

Abstract

The invention discloses a medium-voltage power flexible cable for a mobile power station and a processing method. The medium-voltage power flexible cable sequentially comprises a conductor, a wrapping tape, a conductor shielding layer, an insulating layer, an insulation shielding layer, a flame-retardant layer and an outer sheath from inside to outside, wherein the insulation shielding layer comprises an extruded semi-conductive insulating shielding layer and a metal shielding layer which are sequentially arranged from inside to outside, and the outer sheath comprises an inner sheath, a braided reinforcing layer and an outer sheath which are sequentially arranged from inside to outside. According to the medium-voltage power flexible cable, through cooperation of the insulation shielding layer and the conductor shielding layer, the cable obtains relatively high antistatic interference, external magnetic field interference and radio frequency interference resistance, and the service life of the cable is greatly prolonged; the conductor shielding layer, the insulating layer and the extruded semi-conductive insulating shielding layer are formed by one-time extrusion, so that the production efficiency of the product can be improved; and the outer sheath adopts a formula consisting of chlorosulfonated polyethylene and chlorinated polyethylene in a weight ratio of 3:7, so that the low temperature resistance of the cable is met, and the ageing resistance, the heat resistance, the cold resistance, the mechanical strength and the flame retardance of the product are improved.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to a medium-voltage power flexible cable for a mobile power station and a processing method thereof. Background technique [0002] With the rapid development of society, the demand for electricity is getting higher and higher. Without reliable electricity, the country and its industry cannot function effectively, or in many cases, it is not safe. Traditional power plants take years to plan, finance and build. The mobile modular power generation technology of many energy leasing companies in the world can complete the implementation of an all-electric solution within 30 to 90 days, providing customers with reliable power to meet a series of power needs. With the development of science and technology and the diversification of energy sources, oceans, lakes, rivers and other waters contain huge resources, which have been paid more and more attention, and more and more outdo...

AI Technical Summary

Problems solved by technology

[0003] The reference standard for medium-voltage power flexible cables for mobile power stations is ANSI / ICEA S-75-381 / NEMA WC-58Portable and Power Feeder Cables for Use in Mines and Similar Applications. The voltage level of this standard is 2-25kV. When outputting a current with a rated voltage of 35kV, there are mainly two problems: on the one hand, there is no reference standard for the production of cables with a voltage level of 35kV, and the insulating material needs to meet the tensile strength and accelerated water absorption performance when the elongation rate is 100%. On the one hand, the environment in which the cable is used is relatively complex, so the performance requirements for its outer sheath are very high. The finished cable must pass the VW-1 flame retardant performance test, -20°C low temperature bending test, -45°C low temperature impact test and oil resistance test, etc.

Images