Flame-retardant fireproofing power cable

Abstract

The invention discloses a flame-retardant fireproofing power cable. The flame-retardant fireproofing power cable comprises a plurality of conductors, fireproofing insulating layers coating the outer sides of the conductors, a flame-retardant filling rope, an aluminum plastic composite belt isolating layer and a flame-retardant jacket layer, wherein the conductors and the fireproofing insulating layers form insulating cable cores, the aluminum plastic composite belt isolating layer wraps the outside of a cabling structure which is formed by a plurality of insulating cable cores in a twisting mode, the flame-retardant filling rope is filled into the gap between the fireproofing insulating layers and the aluminum plastic composite belt isolating layer, and the flame-retardant jacket layer is arranged on the outer surface of the aluminum plastic composite belt isolating layer. According to the flame-retardant fireproofing power cable, a combined structure of the fireproofing insulating layers, the aluminum plastic composite belt isolating layer and the flame-retardant jacket layer is adopted, an original mica tape lapping fire resisting structure is replaced, the production processes of the cable are reduced, the flame-retardant fireproofing performance of the cable is enhanced, staff loss and property loss under a fire environment are effectively lowered, the using safety performance of the power cable is improved, the service life of the cable is prolonged.

Description

technical field [0001] The invention relates to a power cable, in particular to a flame-retardant and fire-resistant power cable used in a fire environment. Background technique [0002] At present, the structure of most cables includes a conductor, a mica tape, an insulating layer, a filler, a wrapping layer and a sheath layer. In the gap of the core, the wrapping layer is wrapped on the outside of the cable core, and the sheath layer is wrapped on the outside of the wrapping layer, and the sheath material is mostly flame-retardant PVC material. [0003] During the use of the cable, especially in a fire environment, after a period of use, the insulating core of the cable is quickly destroyed, and the power is interrupted, which brings great hidden dangers to people's safety in using electricity. Contents of the invention [0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a flame-retardant and fire-resistant power cabl...

AI Technical Summary

Problems solved by technology

[0003] During the use of the cable, especially in a fire environment, after a period of use, the insulating core of the cable is quickly destroyed, and the power is interrupted, which brings great hidden dangers to people's safety in using electricity.

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