A multifunctional high-voltage flame-retardant shielded cable

Abstract

The invention discloses a multifunctional high-voltage flame-retardant shielded cable, comprising a sheath layer and cable cores which are extruded by the sheath layer, wherein the outer sheath is anexplosion-proof sheath, the inner sheath is a flame-retardant layer, and control wire cores are uniformly arranged between the outer sheath layer and the metal shielding layer of the sheath layer. Thecable core comprises a power wire core, a grounding wire core, a water permeable pipe, an air permeable pipe, a steel wire, two communication wire cores and two spare lighting wire cores, wherein thesteel wire is positioned at the center of the cable core, and the air permeable pipe, the water permeable pipe, the communication wire cables and the spare lighting wire cores are surrounded by the power wire core and the grounding wire core, and the power wire core and the grounding wire core are arranged at intervals; each wire core conductor is wrapped by an insulating layer, and each wire core and the water permeable pipe, the air permeable pipe and the steel wire are fixedly separated by filler so that the wire cores are not in contact with each other, and the power wire core and the grounding wire core comprise a conductor, a shielding layer and a semi-conductive shielding layer from the inside to the outside each. The cable has a simple structure and can increase the survival probability of the trapped person when a collapse accident occurs.

Description

technical field [0001] The invention belongs to the technical field of multifunctional cables, in particular to a multifunctional high-voltage flame-retardant shielded cable. Background technique [0002] In the construction of various coal mines and tunnels, landslide accidents occur from time to time. During the landslide, the construction workers are often buried. Most of the construction workers buried in the landslide were trapped and were not hit by falling rocks. There is no direct danger to their lives. Being trapped can easily lead to lack of water and oxygen, which will cause people buried in it to die of suffocation and dehydration if they cannot wait for rescue. The most difficult thing to be damaged in a landslide is the cable. The construction cable is generally laid flat on the ground as the main cable of the excavation equipment and enters the mine and tunnel. When the landslide occurs, the cable will not break, and only the landslide will be buried. The int...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a multi-functional high-voltage flame-retardant shielded cable, which solves the technical problem of casualties caused by the lack of water and oxygen for trapped people during tunnel construction

Images