cable terminal

Abstract

A cable terminal, comprising a capacitive insulating sleeve, the insulating sleeve is provided with a cavity for accommodating cables, and a stress cone is arranged between the insulating sleeve and the cable, and the stress cone is located far away from the cable terminal. At the other end of the wire end, the insulating sleeve includes a plurality of capacitive screens alternately arranged with insulating layers, wherein the innermost capacitive screen is a grounding screen, and the outermost capacitive screen is a high-voltage screen, and the high-voltage screen and the cable guide of the cable Core electrical connection, so that when the cable terminal of the present invention is installed and connected with the cable, the part of the cable that needs to be stripped to the main insulation layer outside the cable guide core is reduced. When the cable is not installed in place or needs to be adjusted, it needs to be intercepted and wasted. The length is greatly reduced; moreover, a fill-free gap can exist between the insulating sleeve and the cable.

Description

technical field [0001] The invention relates to the field of high-voltage electrical appliances, and relates to a cable terminal for high-voltage cables. Background technique [0002] Existing cable terminals usually include a stress cone, an insulating sleeve and an insulating medium filled in the inner space, wherein the function of the stress cone (also called the stress sleeve) is to improve the electric field strength at the root of the cable; the function of the insulating sleeve is to contain the stress cone and Insulation medium, and support the cable terminal head and increase the outer creepage distance, the upper flange at the end of the insulating sleeve is fixed to the end of the cable conductor, and the lower flange at the root of the insulating sleeve is fixed and connected to the grounding part of the cable sheath; The role of the insulating medium is to fill the air gap in the electric field and prevent the occurrence of discharge. [0003] Usually, during ...

AI Technical Summary

Problems solved by technology

[0005] However, it is the same as the general cable terminal, the semi-conductive layer at the end of the cable also needs to be scraped off, and it needs to be polished very smooth, and this distance is long, and it must be constructed on site (many times on the tower), which is more difficult Big

Moreover, if the cable terminal is damaged and needs to be replaced, the longer section of the cable must be sawed off, and a new section of the same length of cable must be scraped off, which not only increases the difficulty of construction, but may also be unable to construct because the reserved cable is not long enough. Need to replace new cable

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