Low-voltage power cable capable of temperature self-testing and fabrication method thereof

Abstract

A low-voltage power cable capable of temperature self-testing comprises a plurality of insulation wire cores arranged in an outer sheath, wherein each insulation wire core comprises a conductor and a wire core insulation sleeve wrapping the conductor, a temperature detection module is arranged in the outer sheath and comprises a temperature detection line, a polyester lining layer, a shielding layer and a plastic wrapping belt are sequentially arranged outside the temperature detection line, the temperature detection line is formed by pair twisting of two copper cores provided with copper core insulation sleeves, and the temperature detection module is arranged outside the wire core insulation sleeve, and is consistent to the wire core insulation sleeve in a length direction. The invention also provides a corresponding fabrication method of the low-voltage power cable capable of temperature self-testing. By the low-voltage power cable capable of temperature self-testing, the temperature self-testing ability of the cable can be improved, and the cable is prevented from excessively heating to cause a circuit fault.

Description

technical field [0001] The invention belongs to the technical field of power cables, in particular to a self-measuring low-voltage power cable and a manufacturing method thereof. Background technique [0002] With the development of the national economy and the acceleration of urbanization and the improvement of people's living standards, power supply is very important. Any power outage caused by line failure will have adverse effects on production and life. Therefore, a self-temperature-measuring component is added to the low-voltage power cable to monitor the operating temperature of the cable line to prevent the line from being overloaded, the temperature being too high, causing insulation damage, and the cable line is faulty and the power is cut off. Most of the cable lines are laid in a concealed manner. It is laborious and time-consuming to detect fault points and repair, and special equipment is required for detection, which causes great difficulties for users. In a...

AI Technical Summary

Problems solved by technology

[0007] Existing ordinary low-voltage power cables often have overload operation and the temperature of the cable is too high, which softens the insulation into a molten state. The conductive insulating cores are close to each other under the action of internal stress. When the insulation is squeezed and thinned to a certain extent, it cannot withstand the electric field. When the strength is high, the insulation breakdown occurs, and the cable line protection trips and powers off

Images