Flat five-core composite water-blocking cable

Abstract

The invention discloses a flat five-core composite water-blocking cable having a flat structure. Three parallel insulating wire cores are arranged at the center of the cable; a plurality of ground wire core conductors distributed in a half circle and a plurality of neutral wire cores distributed in a half circle are arranged outside the insulating wire cores in parallel; a flat water-blocking flexible pipe sleeves the outsides of the ground wire core conductors and the neutral wire cores; a gap among the ground wire core conductors, the neutral wire cores, and the flat water-blocking flexiblepipe is filled with water-blocking yarn; and a polyurethane waterproof outer sheath extrudes the outside of the flat water-blocking flexible pipe. A slot hole is formed in the polyurethane waterproofouter sheath and is filled with heat-absorbing cotton. The flat five-core composite water-blocking cable having characteristics of being moved repeatedly, being able to be bent, being used vertically,having a compact structure, having a small outer diameter, being easy to process, and being convenient to construct and the like.

Description

technical field [0001] The invention relates to the field of wires and cables, in particular to a five-core composite water-blocking flat cable. Background technique [0002] The five-core cable in the prior art is usually constructed by twisting five circular cores extruded with insulation, or twisting four fan-shaped cores and one circular core. The five-core cable core includes five fifth-grade cores with the same conductor cross-section, three "three big and two small" cores with large conductor cross-sections and two small conductor cross-sections, or "four big four" with large conductor cross-sections and one small conductor cross-section. A small" core. The twisting of five circular cores, especially the twisting of five circular cores with different cross-sections, has a large gap between the cores, which not only makes the roundness of the cable poor, but also tends to loosen during extrusion and construction, and the wires The core is prone to shifting. For this ...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is a structure using a flat cable. Although it can be moved repeatedly, bent, or used vertically, five cores are arranged in parallel at the same time, which increases the length of the cable, and the structure is not compact; and the existing cable has poor water resistance. , the heat dissipation performance is poor, causing the cable to heat up and spontaneously ignite

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