Low-voltage fireproof cable

Abstract

A low-voltage fireproof cable is disclosed, including jackets, the sheath is sleeved on the outer wall of the protective layer, the protective layer is sleeved on the outer wall of the copper core, Afill layer is filled between the copper core and the protective layer, The copper core comprises a thick copper wire and a copper wire, wherein the copper wire is provided with a plurality of strandsand is wound and adhered on the outer wall of the thick copper wire; the lower end of the sheath is provided with a tangential structure; the tangential structure comprises a cutting knife A and a cutting knife B; and a baffle plate is arranged above both outer ends of the cutting knife A and the cutting knife B. As that fire-retardant paint is arrange, Magnesium oxide powder, protective layer, filling layer, insulating sleeve and tangential wire structure solve the problems of high temperature caused by fire when the cable is in use, melting of the cable causes the normal use of the cable power-off image cable, poor conductor performance in the cable, poor compression resistance when the cable is in use, and difficult peeling of the copper core when the cable is connected.

Description

technical field [0001] The invention relates to the technical field of electric power, in particular to a low-voltage fireproof cable. Background technique [0002] Low-voltage cables are usually rope-like cables twisted by several wires or groups of wires. Each group of wires is insulated from each other and is often twisted around a center. The entire outside is covered with a highly insulating coating. Cables refer to materials used for power, communication and related transmission purposes. There is no strict boundary between wires and cables. Products with fewer cores, small diameters, and simple structures are usually called wires, and those without insulation are called bare wires. Others are called cables; those with a larger conductor cross-sectional area, greater than 6 square millimeters, are called large wires, smaller ones, less than or equal to 6 square millimeters, are called small wires, and insulated wires are also called cloth wires. Wires and cables mainly...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a low-voltage fire-resistant cable, which solves the problem of high temperature caused by fire during use of the cable, melting the cable and causing the cable to break down like normal use of the cable, poor performance of the conductor in the cable, and the cable The compressive performance is poor during use, and the copper core is difficult to strip when the cable is connected.

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