Silicone rubber insulation shielding medium-voltage mobile cable

Abstract

The invention discloses a silicone rubber insulation shielding medium-voltage mobile cable. The cable comprises a rubber sheath, a wrapping layer, a shielding layer, a first semi-conductive layer, aninsulating layer, a second semi-conductive layer and conductors, wherein the number of the conductors is three groups; the second semi-conductive layer is arranged on the outer surface of the conductor in a sleeving manner; the insulating layer fixedly sleeves the outer surface of the side edge of the second semi-conductive layer; the first semi-conductive layer is arranged on the outer surface ofthe side edge of the insulating layer; the outer surface of the first semi-conductive layer is fixedly sleeved with the shielding layer; the outer surface of the shielding layer is wound and wrappedwith a wrapping layer; the rubber sheath is fixedly sleeves the outer surface of the side edge of the wrapping layer; and the rubber sheath and the insulating layer are both made of a silicone rubbermaterial. According to the silicon rubber insulation shielding medium-voltage mobile cable, the cable is provided with a double-layer protection structure, and the safety of the cable in use is improved. Meanwhile, the cable is provided with the double-wrapping structure, and the efficiency of cable wrapping processing operation is improved.

Description

technical field [0001] The invention belongs to the technical field of cables, and more specifically relates to a medium-voltage mobile cable with silicone rubber insulation and shielding. Background technique [0002] The cable is usually a rope-like cable twisted by several or several groups of wires. Each group of wires is insulated from each other and is often twisted around a center. The entire outside is covered with a highly insulating covering. The cable has The characteristics of energization inside and insulation outside. [0003] The reference document CN205810431U discloses an automatic moving cable, which includes a cable surface and a copper core, the copper core is arranged inside the cable surface, a fixed ring is arranged outside the cable surface, and a rolling ring is arranged on the periphery of the fixed ring. The top of the rolling ring is provided with a rotating motor, which drives the rolling ring to rotate, and the lower end of the surface layer of...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the traditional silicone rubber insulated and shielded medium voltage mobile cable, the rubber sheath and metal sheath are used to protect the cable. When the cable is bent, an air gap is easily generated between the insulating layer and the outer metal shielding layer, resulting in an air gap. Discharge, thereby breaking down the insulation layer, reducing the safety of the cable during use; secondly, when the traditional silicone rubber insulated and shielded medium-voltage mobile cable is wrapped, it is impossible to use two sets of wrapping layers to wrap the cable conductor at the same time. The processing operation reduces the working efficiency of the silicone rubber insulated and shielded medium-voltage mobile cable wrapping process; secondly, after the traditional silicone rubber insulated and shielded medium-voltage mobile cable is wrapped, the wrapping layer on the surface is prone to loosening and falling off. Therefore, the stability of the medium-voltage mobile cable with silicone rubber insulation and shielding is reduced, and a medium-voltage mobile cable with silicone rubber insulation and shielding is provided.

Images