Method for making plug-pull high voltage terminal

Abstract

The invention discloses a method for making a plug-pull high voltage terminal. The method comprises the following steps of: peeling an outer sheath of a cable to expose a copper shield with the length of 210 millimeters; cutting a cable core, and insulating the cut core; fixing a grounding copper braided strap on the copper shield by using a copper binding wire and welding firmly; wrapping a step by using a semi-conductive strap at a position of 96 millimeters far away from the insulated end of the core; covering a thermal shrinkage protective sleeve on the cable, and covering an aluminum shell on the cable; covering a plastic guide sleeve on the core, and forcibly covering the terminal on the cable till a stress cone step of the terminal is in well contact with the semi-conductive strap on the cable; sequentially covering a bearing ring, a compression cone and a contact ring on the cable core; covering a tensioning sleeve on the contact ring; and pressing the contact ring on the compression cone by using a conductor pressing device. By the method, the weakness of a semiconductor in the cable and a peeled section of a copper shielding layer is well eliminated, insulation breakdown is effectively prevented, equipment runs safely and reliably, and economic loss caused by short circuit of the high voltage terminal is effectively prevented.

Description

technical field [0001] The invention belongs to an electrical construction method, in particular to a method for manufacturing a plug-in high-voltage terminal head. Background technique [0002] At present, in the production and installation of various high-voltage terminals in the metallurgical industry, the disadvantages of the traditional production and installation of high-voltage terminals are gradually revealed. The gap between the main bodies is prone to short circuit due to moisture. The cold shrinkable high-voltage terminal head is in an area with a large temperature difference. The cold shrinkable tube often cracks, causing short circuit, many safety hazards, and causing huge economic losses to the enterprise. Contents of the invention [0003] The purpose of the present invention is to solve the above problems, provide a plug-in high-voltage terminal head manufacturing method, properly deal with the problem of electric field concentration at the cut-off of the o...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production and installation of various high-voltage terminals in the metallurgical industry, the disadvantages of the traditional production and installation of high-voltage terminals are gradually revealed. The gap between the main bodies is prone to short circuit due to moisture. The cold shrinkable high-voltage terminal head is in an area with a relatively large temperature difference. The cold shrinkable tube often cracks, causing short circuit, many safety hazards, and causing huge economic losses to the enterprise.

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