Method for making 10KV heat-shrinkable three-core cross-linked polyethylene cable intermediate joint

Abstract

The invention relates to a method for making a 10KV heat-shrinkable three-core cross-linked polyethylene cable intermediate joint, comprising the following steps: S1, aligning and cutting a cable; S2, stripping an outer sheath layer and an armor; S3, stripping an inner sheath layer and a filler layer; S4, stripping a copper shielding layer and an outer semi-conducting layer; S5, fixing a stress pipe; S6, sleeving pipes; S7, crimping a connecting pipe; S8, wrapping a semi-conducting band; S9, wrapping a filling adhesive tape, S10, fixing a composite pipe; S11, wrapping a waterproof adhesive tape; S12, wrapping a semi-conductive band; S13, installing a three-edged conductive wedge rod; S14, installing a copper shielding net and a ground line; and S15, fixing sealed sheath pipes. For an intermediate joint prepared by the method, the occurrence of tiny cracks or holes is avoided effectively, and the safety factor is improved greatly.

Description

technical field [0001] The invention belongs to the field of production technology of power cable joints, and relates to a production process of cable intermediate joints, in particular to a production method of 10kV heat-shrinkable three-core XLPE cable intermediate joints; the intermediate joints produced by the method are effective Avoid the generation of tiny gaps and holes, fully reduce the possibility of water seepage in the intermediate joints, and significantly improve the safety performance. Background technique [0002] Power cables are an indispensable element in the power supply system. The safety performance of power cables is not only related to the normal operation of electrical equipment, but also crucial to the safety of workers. [0003] The power cables of the power supply system may be damaged by various external factors (such as mechanical force, etc.), resulting in an inevitable increase in the use of cable intermediate joints. Due to the professional ...

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Problems solved by technology

[0007] The purpose of the present invention is to solve the defects in the above-mentioned prior art that small gaps or holes appear in the middle joint of the cable due to the influence of the damp or water environment, which in turn causes the power cable to fail to work normally and the personal safety of the staff cannot be guaranteed. Provide and design a manufacturing method for the intermediate joint of 10kV heat-shrinkable three-core XLPE cable to solve the above technical problems, avoid the generation of tiny gaps and holes, and improve the safety performance of the intermediate joint

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