Cable, monitoring system and cable joint installation method

Abstract

The invention relates to a cable, a monitoring system and a cable joint installation method. The cable comprises a stress cone, a temperature measurement assembly and a copper shell. The stress cones are sleeved outside the battery cells of the two mutually connected cables along the axial direction of the cables, the copper shell is sleeved on the adjacent stress cones at the cable joints, the temperature measuring assembly comprises an insulating sleeve and a temperature measuring optical fiber, the temperature measuring optical fiber is mounted on the insulating sleeve, and the temperature measuring assembly sleeved on the periphery of the copper shell is propped against the copper shell. The temperature measuring optical fiber is arranged on the insulating sleeve, the insulating sleeve is sleeved on the copper shell, so that the temperature measuring optical fiber is arranged in the cable, the temperature measuring assembly abuts against the copper shell, the copper shell is directly contacted with the cable joint of which the temperature needs to be measured, the thermal conductivity is improved, and the temperature obtained by the temperature measuring optical fiber is more accurate; therefore, the fault point is confirmed timely and the fault maintenance efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of cable safety monitoring, in particular to a cable, a monitoring system and a cable joint installation method. Background technique [0002] In recent years, due to the accelerating pace of urban development and the increasing shortage of land resources, power cables have been widely used because of their safety, reliability, and land-saving advantages. Power cables have become an important part of modern urban power grids, providing an important guarantee for the safe operation of power grids, especially for super-large cities, power cables have become the main means of power supply in cities. However, because the power cable is laid underground and the operating environment is harsh, in addition to the failure caused by the external force damage of the line, more than 90% of the faulty parts of the high-voltage cable line occur at the intermediate joint, and the failure of the intermediate joint is often...

AI Technical Summary

Problems solved by technology

[0003] Based on this, it is necessary to provide a cable for the technical problems that the existing monitoring device is inaccurate in detection, unable to accurately determine the fault point, and affects the time for emergency repair of the line.

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