Impact-resistant cable

Abstract

The invention provides an impact-resistant wire and cable, comprising a first outer sheath, an inner sheath, a shielding layer, at least one insulating layer and at least one conductor, the insulating layer surrounds the conductor, the shielding layer surrounds the insulating layer, The first outer sheath surrounds the shielding layer, the inner sheath is filled between the outer sheath and the shielding layer, and a second outer sheath is arranged between the first outer sheath and the inner sheath, so The second outer protective layer is a layer of metal mesh, and the surface of the metal mesh is covered with an insulating coating and a refractory coating. The wire and cable of the invention has good impact resistance and good fire resistance.

Description

technical field [0001] The invention relates to the technical field of wires and cables, in particular to an impact-resistant wires and cables. Background technique [0002] In recent years, with the development of social economy, electric power and telecommunication industries have penetrated into daily life, and cables have been widely used as the carrier of signal transmission. Wires and cables mainly include bare wires, electromagnetic wires and insulated wires for electrical appliances, power cables, communication cables and optical cables. [0003] Such as figure 1 As shown, the wire and cable generally include a first outer sheath 1, an inner sheath 2, a shielding layer 3, at least one insulating layer 4 and at least one conductor 5, wherein the insulating layer 4 surrounds the conductor 5, and the shielding layer 3 surrounds the insulating layer 4 , the first outer sheath 1 surrounds the shielding layer 3 , and the inner sheath is filled between the first outer she...

AI Technical Summary

Problems solved by technology

The first outer sheath is generally plastic, rubber or a combination of the two, and the inner sheath is generally polyvinyl chloride, which have good insulation effects, but their impact resistance is limited.

When the wires and cables are used in relatively harsh environments, or when they are transported, they will be more or less impacted by external machinery, especially when they encounter fire, the wires and cables may be affected by such as stones, wood, steel plates or fire Water jets and other external impacts, in this case, it is difficult for ordinary wires and cables to ensure the integrity of their outer sheath, which in turn affects the work of the internal circuit of the wires and cables

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