Method for making plug-pull high voltage terminal

A production method and terminal head technology, applied in the direction of cable terminals, etc., can solve the problems of many hidden dangers, cracking of cold shrinkable tubes, economic losses of enterprises, etc., to prevent uneven distribution of electromagnetic fields, prevent insulation breakdown, and prevent economical effect of loss

Inactive Publication Date: 2012-10-03
CHINA MCC17 GRP
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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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  • Method for making plug-pull high voltage terminal
  • Method for making plug-pull high voltage terminal
  • Method for making plug-pull high voltage terminal

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Embodiment Construction

[0016] The present invention takes the plug-in terminal CBN-35 series as an example, which is mainly reflected in the proper solution to the problem of electric field concentration at the cut-off of the outer shield during the terminal manufacturing process, and effectively prevents the uneven distribution of the electromagnetic field of the semiconductor outer shield from insulation breakdown Phenomenon. The meaning of the so-called plug-in terminal can be defined as "plug", and its terminal "socket" has been installed in the cabinet before entering the site. The plug-in terminal is made of silicone rubber, and there is a stress cone inside, which properly solves the weak link of the stripped section of the semiconductor and copper shielding layer in the cable, and effectively prevents the occurrence of insulation breakdown. There is a metal shell outside the plug-in terminal to connect and ground the electrical equipment, so that the equipment can be fully insulated, fully s...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G15/04
Inventor 蒋浩张伟良李浩
Owner CHINA MCC17 GRP
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