Environment-friendly super-refractory flame-retardant flexible cable for communication power supply

Abstract

The invention relates to the technical field of communication and particularly discloses an environment-friendly super-refractory flame-retardant flexible cable for a communication power supply. The flexible cable comprises a plurality of power lines, a lapping layer, an isolating layer, an interlock armor layer and an outer sheath layer, wherein the lapping layer, the isolating layer, the interlock armor layer and the outer sheath layer are sequentially arranged outside the power lines; each power line comprises a conductor, a mica tape lapping layer and an insulating layer; each mica tape lapping layer and each insulating layer sequentially coat the outside of the corresponding conductor; gap parts between the power lines and the lapping layer are filled with glass fiber ropes; the interlock armor layer is interlocked and armored by an aluminum alloy strip; the insulating layer is made of low-smoke halogen-free polyolefin; each conductor is an annealed round copper wire; the lapping layer is lapped by a glass fiber tape; the isolating layer is made of fire-resistant ceramic silicone rubber; and the outer sheath layer is formed by extruding and wrapping the low-smoke halogen-free and flame-retardant polyolefin. The environment-friendly super-refractory flame-retardant flexible cable has the advantages of being good in flexibility, long in fire-resistant time, safe and environment-friendly.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to an environment-friendly flame-retardant flexible cable for super fire-resistant communication power supply. Background technique [0002] With the acceleration of my country's economic construction, people pay more and more attention to the safety requirements of the living environment, and the subsequent fire safety is becoming more and more important and urgent. Power systems in important places such as large-scale CBDs, subways, large-scale exhibition venues, stadiums, and important national defense bases put forward higher requirements for the safety performance of cables under fire conditions. [0003] The existing flame-retardant and fire-resistant cables for communication power supplies on the market are generally ordinary copper-core fire-resistant cables, and the quality of the cables is uneven. , When a fire occurs, the outer sheath will burn and produce toxic s...

AI Technical Summary

Problems solved by technology

[0003] The existing flame-retardant and fire-resistant cables for communication power supplies on the market are generally ordinary copper-core fire-resistant cables, and the quality of the cables is uneven. , when a fire occurs, the outer sheath will produce toxic smoke when burning, and the fire resistance time is short, which poses a serious threat to human life safety

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