Non-crosslinking polyethylene insulating high-voltage cable

Abstract

The invention relates to a non-crosslinking polyethylene insulating high-voltage cable. The cable comprises a conductor, an inner semiconductive shielding layer wrapped outside the conductor, an insulating layer wrapped outside the inner semiconductive shielding layer, an outer semiconductive shielding layer wrapped outside the insulating layer, a metal woven shielding layer wrapped outside the outer semiconductive shielding layer, a polyester film wrapped outside the metal woven shielding layer, and an outer sheath layer wrapped outside the polyester film. The insulating layer is made of high-purity polyethylene and high-purity polyethylene grafted modified elastic bodies. The non-crosslinking polyethylene insulating high-voltage flexible cable utilizes the high-purity polyethylene grafted modified elastic bodies as the insulating layer. Accordingly, the non-crosslinking polyethylene insulating high-voltage cable not only has an excellent physical machinery and electric property and good flexibility, but also can simplify the manufacturing process of the cable, reduce process consumption and lower manufacturing cost.

Description

technical field [0001] The invention relates to a non-crosslinked polyethylene insulated high-voltage cable, which belongs to the technical field of electric wires and cables. Background technique [0002] At present, the high-voltage cables manufactured in China are generally XLPE insulated cables, but according to the existing national standards, XLPE insulated high-voltage cables have thicker insulation, larger structural dimensions, harder cables, and less allowable bending radius. It is too large to meet some occasions with special requirements. Moreover, the cable production process is very complicated, the production process is difficult to control, and the manufacturing cost is also high. Contents of the invention [0003] In order to overcome the above deficiencies in the prior art, the present invention provides a non-crosslinked polyethylene insulated high-voltage flexible cable, which can reduce the structural size of the cable, simplify the processing technolo...

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Problems solved by technology

[0002] At present, the high-voltage cables manufactured in China are generally XLPE insulated cables, but according to the existing national standards, XLPE insulated high-voltage cables have thicker insulation, larger structural dimensions, harder cables, and less allowable bending radius. Larger, unable to meet the occasions with special requirements, and the cable production process is very complicated, the production process is difficult to control, and the manufacturing cost is also high

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