Bearing type branch cable

Abstract

The invention discloses a loaded branch cable, which comprises a plurality of conductors (2), insulation layers (4) coated on the outer surfaces of the conductors (2), and a sheath (7) arranged on the outer layer of the cable. The loaded branch cable is provided with a steel core (1), wherein one mode is that the steel core (1) and the conductors (2) are extruded and insulated respectively and then are twisted together to form the cable; while another mode is that the steel core (1) is arranged on the sheath (7), and when the sheath (7) is extruded for forming, one side of the sheath and the sheath (7) are extruded together to form a whole body. By adopting the technical proposal, the reliability, the engineering economical efficiency and the construction convenience of the loaded branch cable are effectively combined, and the loaded branch cable has fire resistance performance, solves a long-term unsolved difficulty that a large-length branch cable cannot be laid due to overweight self, and has low cost.

Description

technical field [0001] The invention belongs to the technical field of power cables, in particular, the invention relates to a load-bearing branch cable. Background technique [0002] Due to the development of modern civilization, high-rise buildings are becoming more and more popular. In the electrical design of high-rise building power distribution systems, power supply reliability, engineering economy and construction convenience are becoming more and more important. (Busway) power supply, the contradiction between the three is difficult to unify. Branch cables are developed on the basis of ordinary all-plastic power cables in order to meet this demand. However, when branch cables are used for vertical laying of high-rise buildings, they are often unable to be laid normally because the cables themselves are too heavy. There is an urgent need for a load-bearing type branch cables. Contents of the invention [0003] The problem to be solved by the present invention is t...

AI Technical Summary

Problems solved by technology

[0002] Due to the development of modern civilization, high-rise buildings are becoming more and more popular. In the electrical design of high-rise building power distribution systems, power supply reliability, engineering economy and construction convenience are becoming more and more important. (Busway) power supply, the contradiction between the three is difficult to unify

Branch cables are developed on the basis of ordinary all-plastic power cables in order to meet this demand. However, when branch cables are used for vertical laying of high-rise buildings, they are often unable to be laid normally because the cables themselves are too heavy. There is an urgent need for a load-bearing type branch cable

Images