Cable terminal assembly and cable terminal abnormal heating monitoring system

Abstract

The invention discloses a cable terminal assembly and a cable terminal abnormal heating monitoring system, and the cable terminal assembly comprises: an electrical connection improvement unit which isdisposed on a cable terminal head and is used for improving the electrical connection mode of a cable terminal and a cable chamber sleeve; and a mechanical stress improvement unit which is arranged at the intersection of the cable terminal and the wire inlet hole and is used for improving the mechanical stress borne by the whole cable and each branch cable. The cable branch sleeve is sleeved outside the cable chamber to ensure the split-phase length of the cable, the cable arc-shaped guide groove ensures the standard trend of the cable, and the overall fixing position and the branch fixing position of the cable are additionally arranged to facilitate the improvement of the mechanical stress problem; and by means of the double-hole structural design, the electrical connection mode of the cable terminal and the cable chamber sleeve is improved in a surface contact mode, and the requirement for the construction process level is lowered.

Description

technical field [0001] The invention relates to a cable terminal assembly and a cable terminal abnormal heating monitoring system, belonging to the technical field of power cables. Background technique [0002] At present, under the trend of increasingly compact power distribution main equipment such as ring main unit and switch cabinet, the size of its cable room is getting smaller and smaller. In the current typical structural scheme of the State Grid Corporation of China, the cable branch gloves are all installed at the bottom of the cable room, the installation space is cramped, and the phase length of the cable terminal is insufficient. Especially for cables with large cross-sections, it is easy to cause stress on the cable terminal due to improper construction. Poor crimping with the bushing will cause heat, resulting in material aging, and accidents due to insulation failure. [0003] The function of the cable terminal is to realize the connection between the cable a...

AI Technical Summary

Problems solved by technology

In the current typical structural scheme of the State Grid Corporation of China, the cable branch gloves are all installed at the bottom of the cable room, the installation space is cramped, and the phase length of the cable terminal is insufficient. Especially for cables with large cross-sections, it is easy to cause stress on the cable terminal due to improper construction. Heat generated due to poor crimping with the bushing, resulting in material aging and accidents due to insulation failure

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