Hot-melt type cable middle connection mounting technology

Abstract

The invention discloses a hot-melt type cable middle connection mounting technology, and belongs to the field of cable middle connection structures; the method comprises the following steps of S1, performing preprocessing on a cable; S2, performing connecting on conductors; S3, carrying out recovering of a cable insulating layer: a, enabling a recovery conductor formed in S2 to be wrapped with aninner semi-conductive band; b, enabling an insulating repairing layer to wrap the outside of the inner semi-conductive band, wherein the material of the insulating repairing layer is a cross-linked polyethylene insulating band; and c, moving a cold-shrinkable sleeve for wrapping the insulating repairing layer, and performing heating on the insulating repairing layer to be fused, wherein the fusedinsulating repairing layer is cooled and then is integrally formed with an insulating layer of a cable main body, and a new recovery insulation layer is formed; S4, enabling the cold-shrinkable sleeveto be stripped, and performing grinding on the recovery insulation layer; and S5, carrying out recovering of an outer shielding layer of the cable. The method has the advantages that the melting process and the process of repairing and continuous connection of the cross-linked polyethylene material can be simplified, and meanwhile, other large equipment or special auxiliary tools are not needed,so that the effects of improving the construction efficiency and saving the construction cost are achieved.

Description

technical field [0001] The invention relates to the technical field of cable intermediate connection structures, in particular to a heat-melt cable intermediate connection installation process. Background technique [0002] XLPE insulated wire and cable is a kind of cable suitable for distribution network and other fields. It has the advantages of excellent electrical performance, high allowable working temperature of conductor, large transmission capacity, simple structure, convenient installation and laying, and no drop limit. It is suitable for distribution network, industrial installations or other fields requiring large-capacity electricity consumption. [0003] In the laying process of power cable transmission lines, due to the limited length of power cable manufacturing, it is necessary to continue the cables. And if the cable is partially defective during use, it is also necessary to repair the defective part. [0004] As attached to the manual figure 1 As shown, ...

AI Technical Summary

Problems solved by technology

[0006] Although this repair method can complete the repair and continuation of the damaged XLPE insulated power cable, in the repair process, it is necessary to use special auxiliary tooling such as a tubular former for many times, and the XLPE cable is melted. Materials also need to use large-scale equipment such as plastic extrusion machines. The entire repair process and the tools used are quite cumbersome and complicated, requiring high technical participation, which directly leads to low efficiency and even failure of cable repair and connection.

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