Circuit Break Protection Cable

Abstract

The invention relates to an open-circuit protection cable. The open-circuit protection cable comprises conductive wire tubes and a protection tube. The protection tube comprises an internal tube and an external tube which are coaxial. The two ends of each conductive wire tube are provided with a separating compression spring perpendicular to the conductive wire tube. The protection tube is also provided with a high pressure oil chamber which comprises a slide cylinder arranged between the internal tube and the external tube and also comprises a compression cylinder arranged in the internal tube. The other end of the slide cylinder is communicated with an air pressure chamber which is communicated with a pressure valve arranged on the external tube. The high pressure oil chamber and the air pressure chamber are separated by a sealed piston arranged in the slide cylinder. Conductive wire cores are tightly arranged in each conductive wire tube. Two wire ends stretching out of any adjacent conductive wire tubes are vertically laminated in parallel and electrically contacted. The compression cylinder compresses each wire end. According to the cable, the circuit can be disconnected when the circuit is abnormally and the circuit can be rapidly restored so that working stability of the cable can be effectively enhanced and cost can be saved.

Description

technical field [0001] The invention relates to a cable, in particular to a cable with safety protection for circuit breaking. Background technique [0002] Cables are often twisted and twisted by multiple wires, and are wrapped with insulating layers, shielding layers and protective layers on the outside of the wires. Therefore, the cables are heavy in weight and large in size, and require more labor in laying and maintenance; more cables are laid In the underground, it occupies a small area, is not affected by the pollution of the surrounding environment, has high reliability of power transmission, and has little interference with personal safety and the surrounding environment, so it is widely used; but because the cable is laid underground, when the circuit fails or the circuit breaks It is impossible to quickly and accurately find faults and breakpoints, so it is more troublesome during maintenance; in addition, in the process of reconnecting after a cable break, the ca...

AI Technical Summary

Problems solved by technology

[0002] Cables are often twisted and twisted by multiple wires, and are wrapped with insulating layers, shielding layers and protective layers on the outside of the wires. Therefore, the cables are heavy in weight and large in size, and require more labor in laying and maintenance; more cables are laid In the underground, it occupies a small area, is not affected by the pollution of the surrounding environment, has high reliability of power transmission, and has little interference with personal safety and the surrounding environment, so it is widely used; but because the cable is laid underground, when the circuit fails or the circuit breaks It is impossible to quickly and accurately find faults and breakpoints, so it is more troublesome during maintenance; in addition, in the process of reconnecting after a cable break, the cable needs to be cut off, stripped and reconnected, and the size of the cable will be shortened each time it is reconnected , repeated reconnection will make the cable too tight, which is not conducive to the stable power transmission of the cable, and replacing the cable again will waste more cost and labor; traditional cable protection has a fuse installed in the circuit, but the fuse is easy to generate electricity when it is working. arc, resulting in a fire, so the protective effect of the circuit is not obvious

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