Highly flexible halogen-free low-smog flame retardation environmental protection locomotive vehicle-used fireproof power cable

Abstract

The invention provides a highly flexible halogen-free low-smog flame retardation environmental protection locomotive vehicle-used fireproof power cable comprising a conductor, a fireproof layer, an isolation layer and an insulation layer arranged in sequence from the center inside-out; the conductor is wrapped by the fireproof layer being a mica tape fireproof layer; the fireproof layer is wrapped by the isolation layer being a non-woven fabrics or high temperature resistance polyester belt; the isolation layer is extruded by the insulation layer; the highly flexible halogen-free low-smog flame retardation environmental protection locomotive vehicle-used fireproof power cable is high temperature resistant and work temperature can reach 125 DEG C, is oil resistant and can work under -55 DEG C; when the cable is on fire, no massive smog and toxic gas can be generated, the cable can normally provide power for 90 minutes under high temperature condition of 800 DEG C, thereby providing emergency measurements coping time when special events like fire hazard happens to a bus station, route and the locomotive, reducing fire hazard losses, and greatly improving safety of the railway system specially referring to locomotive operation.

Description

technical field [0001] The invention relates to a power cable, in particular to a highly flexible, halogen-free, low-smoke, flame-retardant, environment-friendly fire-resistant power cable for locomotives and vehicles. Background technique [0002] At present, the cables used on railway locomotives generally consist of wrapping an insulating layer on the conductor, and then wrapping a layer of insulating layer and a layer of sheath on the insulating layer. This kind of cable has a low temperature resistance level and requires special double-layer co-extrusion equipment. The material contains halogen substances, which will produce toxic gases when burned. In particular, the co-extruded double-layer structure of the insulating layer and the sheath is easy to cause delamination, thereby reducing the oil resistance, voltage resistance and cold resistance of the cable. This kind of cable also does not have fire-resistant performance. Once a fire or other special situation...

AI Technical Summary

Problems solved by technology

In particular, the co-extruded double-layer structure of the insulating layer and the sheath is easy to cause delamination, thereby reducing the oil resistance, voltage resistance and cold resistance of the cable

This kind of cable also does not have fire-resistant performance. Once a fire or other special circumstances occurs, the power will be cut off, and there will be no power supply required to take measures, which will cause greater losses.

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