Middle-high voltage oil-resistant rubber semi-conductive shield cable

Abstract

The present invention discloses a middle-high voltage oil-resistant rubber semi-conductive shield cable. The cable comprises a cable body, and the cable body comprises conductors, conductor shield layers, insulation layers, insulation shield layers, filling layers, a belting layer and a sheath; the conductor shield layers are located at the external portions of the conductors, the insulation layers comprises first insulation layers and second insulation layers located at the outer portions of the first insulation layers, the first insulation layers and the second insulation layers are fixedlyconnected, the insulation shield layers are arranged at the external portions of the second insulation layers, the belting layer is arranged at the external portions of the insulation shield layers, and the filling layers are arranged at slits where the insulation shield layers are connected and slits between the outer surfaces of the insulation shield layers and the inner surface of the belting layer. The insulation layers are divided into the first insulation layers and the second insulation layers to perform fix connection to form a whole so as to enhance the cable insulativity, improve thesafety of the cable and the stability when transmission, and therefore, the middle-high voltage oil-resistant rubber semi-conductive shield cable is simple in structure and easy to implement.

Description

technical field [0001] The invention is a medium and high voltage oil-resistant rubber semi-conductive shielded cable, which belongs to the technical field of cables. Background technique [0002] At present, medium and high voltage rubber-sheathed cables are widely used products at home and abroad. National or industry standards such as GB12972, MT818, and GB12706 all have requirements for conductors and insulating shielding materials. [0003] At present, the medium and high voltage oil-resistant rubber semi-conductive shielded cables on the market are usually provided with an insulating layer inside the cable body in the prior art, which makes the insulation of the cable low during use, which is prone to danger and reduces the risk of cable damage. safety and stability during delivery. In addition, the filler layer added inside the cable body on the market is simply provided with some fillers. The filler layer reduces the stability of the internal structure connection of...

AI Technical Summary

Problems solved by technology

[0003] At present, the medium and high voltage oil-resistant rubber semi-conductive shielded cables on the market are usually provided with an insulating layer inside the cable body in the prior art, which makes the insulation of the cable low during use, which is prone to danger and reduces the risk of cable damage. safety and stability during delivery

In addition, the filler layer added inside the cable body on the market is simply provided with some fillers. The filler layer reduces the stability of the internal structure connection of the tape layer, and is easy to be stepped on when the cable is installed in rows. , the filling layer cannot play the function of cushioning and shock absorption, which reduces the pressure resistance of the cable

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