Insulating heating cable

Abstract

The invention provides an insulating heating cable. The insulating heating cable comprises a cold end wire cable, a hot end heating cable and a connecting apparatus for connecting the cold end wire cable and the hot end heating cable; the hot end heating cable comprises metal wire cores, a first armored outer sleeve and a filled magnesium oxide insulating layer; first fixed parts which can be rotated outwards are arranged on the first armored outer sleeve; the cold end wire cable comprises power transmission wire cores, a second armored outer sleeve and a filled magnesium oxide insulating layer; second fixed parts which can be rotated outwards are arranged on the second armored outer sleeve; the connecting apparatus has a first buckle part and a second buckle part; the first buckle part isconnected with the first fixed parts; and the second buckle part is connected with the second fixed parts. According to the insulating heating cable, accurate butt joint between the cold end wire andthe hot end heating cable of the heating cable can be ensured in connection, so that insulativity of the insulating heating cable can be improved, and safety of the insulating heating cable in use isimproved.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to an insulated heating cable. Background technique [0002] With the increase in the demand for electricity in all walks of life, the use of cables and the requirements for cable laying and the environment are gradually increasing. Ordinary single type of cable can no longer meet various needs now. [0003] Although the existing double-core mineral insulated heating cable has many advantages, such as high extrusion strength, high temperature resistance and ability to withstand corrosive environments, long service life and so on. The heating core wire of the mineral insulated heating cable and the stainless steel outer sheath are filled with magnesium oxide to achieve insulation, but the cold end wire and the hot end heating cable of the mineral insulated heating cable cannot be guaranteed to be aligned when connected. If the alignment is not accurate, abnormal current will occur, ...

AI Technical Summary

Problems solved by technology

The heating core wire of the mineral insulated heating cable and the stainless steel outer sheath are filled with magnesium oxide to achieve insulation, but the cold end wire and the hot end heating cable of the mineral insulated heating cable cannot be guaranteed to be aligned when connected. If the alignment is not accurate, abnormal current will occur, and if the insulation layer is not well insulated, it will cause a major accident

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