Tool for testing electrical performance of cable intermediate joint

Abstract

The invention discloses a tool for testing the electrical performance of a cable intermediate joint. The tool comprises a wiring metal pipe, an elastic contraction pipe fitting used for sleeving the wiring metal pipe, and a reaming assembly, wherein the reaming assembly is nested at one end of the elastic contraction pipe fitting and used for expanding the inner diameter of the elastic contractionpipe fitting, and the other end of the elastic contraction pipe fitting is nested with a counteracting assembly used for counteracting the friction force when the reaming assembly is pulled out, thereaming assembly comprises a plurality of first fan-shaped reaming plates nested in the elastic contraction pipe fitting, the number of the first fan-shaped reaming plates is an even number, diameterincreasing sector plates are hinged to two ends of each first fan-shaped reaming plate, the diameter increasing sector plates are connected through hinge bodies, and first radial movement rods used for driving the hinge bodies are hinged to outer end faces of the hinge bodies. The tool is advantaged in that the diameter of the elastic contraction pipe fitting is expanded through the reaming assembly, and thereby series connection of the test circuit in the cable intermediate joint is facilitated, and difficulty of plugging and connection of the test circuit is reduced.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of testing tooling, in particular to a tooling for electrical performance testing of cable intermediate joints. Background technique [0002] During the laying of the power cable transmission line, due to the limited length of the power cable manufacturing, it needs to be connected through the cable intermediate joint. The cable intermediate joint generally includes a connection metal pipe and an elastic contraction pipe member for sheathing on the connection metal pipe. The wiring metal tube is used to socket two cables, and then use the clamping device to squeeze the wiring metal tube and deform it to fix it with the cable, and finally set the elastic shrink tube to wrap the interface, and the elastic shrink tube has its own Contractile and bound to the interface. The quality of the cable intermediate joint is very important to the circuit installation. Therefore, it is necessa...

AI Technical Summary

Problems solved by technology

[0004] To this end, the embodiment of the present invention provides a tooling for electrical performance testing of cable intermediate joints, to solve the problem in the prior art that the end of the cable needs to be inserted into the elastic shrinkage tube with a small inner diameter, which makes it difficult to perform installation problem

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