Multifunctional composite core aluminum stranded wire and cable

Abstract

The invention provides a multifunctional composite core aluminium stranded wire and a cable, relating to an aluminium stranded wire and a cable, aiming at solving the problem that the existing composite core aluminium stranded wire has no pre-warming function on temperature or stress. The invention is provided with three proposals. In proposal one, the aluminium stranded wire is arranged outside the internal core of the composite material and a temperature and stress sensing light guide fiber is arranged inside the internal core of the composite material; in proposal two: an external core is arranged outside the internal core of the composite material; the aluminium stranded wire is arranged outside the external core; the temperature and stress sensing light guide fiber is arranged between the internal core and the external core; in proposal three: the external core is arranged outside the internal core of the composite material; the aluminium stranded wire is arranged outside the external core; the temperature and stress sensing light guide fiber is arranged inside the external core. The cable is formed by coating an external coating layer on the external surface of the aluminium stranded wire arranged the temperature and stress sensing light guide fiber in the external core. The aluminium stranded wire and the cable monitor and pre-warn the temperature and stress of leads which are used for construction of line in real time by the temperature and stress sensing light guide fiber, so as to prevent the line from exceeding the load and allowable usage temperature.

Description

technical field [0001] The invention relates to a composite core aluminum stranded wire and a cable. Background technique [0002] At present, the steel-cored aluminum stranded cables commonly used have low tensile strength and heavy weight, and the sag of the cable is serious after being heated. With the continuous increase of electricity consumption, many completed lines have reached the limit of their carrying capacity. Or Blizzard is very prone to disconnection accidents, and the span of its overhead laying is also limited; and the steel core of the steel-cored aluminum stranded wire is pulled under high temperature conditions for a long time, which may cause irrecoverable strength loss. [0003] The Chinese patent number is ZL02218508.9, the authorized announcement date is October 22, 2003, the authorized announcement number is CN2582119Y, and the utility model patent named "Glass Fiber Reinforced Composite Core Aluminum Stranded Wire", the Chinese patent number is ZL20...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing composite core aluminum stranded wire has no early warning function for temperature and stress. Once the line temperature exceeds its maximum allowable use temperature, no early warning can be made, so that the anti-corrosion function of the composite core The tensile strength will be greatly reduced, and even irrecoverable strength loss will occur, and the service life of the composite core will be greatly affected; at the same time, the damage or fracture of the composite core wire after it is overhead is difficult to detect and detect at the initial stage, and it is very easy to cause To solve the problem of serious accidents of broken wires, a multi-functional composite core aluminum stranded wire and cable is provided

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