Waterproof flexible cable

Abstract

A waterproof flexible cable is characterized in that: a wire core is sequentially composed of an insulating layer, a waterproof layer and a protective cover from inside to outside, wherein a water absorbing layer is arranged between the waterproof layer and the insulating layer; the water absorbing layer evenly covers the surface of the insulating layer, and is closely adhered to the insulating layer; and the protective cover is integrally connected with the waterproof layer through extrusion. By adopting the structure, the waterproof flexible cable has better bending and folding performance through the adopting of the wire core made of soft copper, is convenient in compressed transport, has good waterproof effect since the water absorbing layer adopts a silicone adhesive agent or a polyurethane foam adhesive, prolongs the service life, reduces energy consumption since the waterproof layer is made of plastic coated aluminum alloy, reduces water damage to the cable, protects normal transmission of the cable, and optimizes the application performance.

Description

technical field [0001] The invention relates to a cable, in particular to a waterproof flexible cable. Background technique [0002] Sheathed flexible cables are widely used in high-rise buildings, underground railways, underground streets, large power stations, important industrial and mining enterprises and other places related to fire safety and fire rescue, such as power supply lines and control lines of emergency facilities such as fire-fighting equipment and emergency guide lights. Although the existing mineral insulated cables can still maintain normal power supply for a period of time after a fire, there are problems of high price, complicated process, and difficult construction, and the bending stress of the cable and the torsional stress along the axis of the cable are generated. Ordinary cables will be wound in random directions during the shrinkage process, and sometimes the cables will be entangled together, causing the phenomenon that the bending radius of the ...

AI Technical Summary

Problems solved by technology

Although the existing mineral insulated cables can still maintain normal power supply for a period of time after a fire, there are problems of high price, complicated process, and difficult construction, and the bending stress of the cable and the torsional stress along the axis of the cable are generated. Ordinary cables will be wound in random directions during the shrinkage process, and sometimes the cables will be entangled together, causing the phenomenon that the bending radius of the local point is too small. Due to the frequent crossing of the bending stress and torsional stress of the cable, it seriously affects the cable. service life

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