Fireproof and explosion-proof power cable and preparation method thereof

Abstract

The invention discloses a fireproof and explosion-proof power cable and a preparation method thereof, and relates to the technical field of power cables. The fireproof and explosion-proof power cable comprises a cable core, an outer insulating layer wrapping the cable core, an inner sheath longitudinally wrapping the outer insulating layer, a high-temperature belting layer wrapping the inner sheath, and an outer sheath extruding the high-temperature belting layer, wherein the cable core comprises a plurality of conductors and an inner insulating layer wrapping the conductors; each conductor is formed by twisting and pressing a plurality of copper wires; the inner insulating layer is formed by wrapping and drying an inorganic fire-resistant synthetic mica tape; and a gap in the cable core is filled with an inorganic fireproof filling material. The product provided by the invention has the advantages of fire prevention, bulletproof, static explosion resistance, high-strength impact resistance, cutting resistance, corrosion resistance, radiation protection and the like, and the potential safety hazard of the cable in various military and major civil engineering is greatly reduced.

Description

technical field

[0001] The invention relates to the technical field of power cables, in particular to a fire-proof and explosion-proof power cable and a preparation method thereof. Background technique

[0002] At present, there are only simple fire-proof or explosion-proof cables in the domestic market, and explosion-proof cables only have electrostatic explosion-proof functions. However, some high-risk special places such as power plants, substations and industrial and mining enterprises use a large number of power cables. Once the cables catch fire and explode, it will cause serious fires and cause secondary disasters. Therefore, in order to meet the fire and explosion-proof requirements of some explosion-hazardous places, it is urgent to develop a new type of fire-proof and explosion-proof cable, which can break through various problems by changing the internal structure of the cable and the performance of the cable material. The development of new fire-proof and explos...

Images