Fireproof flame-retardant cable

Abstract

The invention discloses a fireproof flame-retardant cable, which comprises an insulating layer, wherein a sheath is internally arranged in the insulating layer; more than one copper strip is connected between the insulating layer and the sheath; the sheath is evenly arranged on the insulating layer and the copper strips; a steel strip armor layer is arranged in the sheath and the sheath is bonded to the steel strip armor layer; a buffer structure layer is arranged in the steel strip armor layer; the thickness of the buffer structure layer is smaller than that of the steel strip armor layer; a fireproof flame-retardant structure layer is arranged in the steel strip armor layer; the part between the fireproof flame-retardant structure layer and the buffer structure layer is filled with non-woven fabric; and a core body is arranged in the fireproof flame-retardant structure layer and is connected with the fireproof flame-retardant structure layer through connecting ribs. The fireproof flame-retardant cable is stable and firm in structure, good in durability and convenient and fast to manufacture, and has relatively good smoke-free, flame-retardant and wear-resistant characteristics; meanwhile, the rigidity is relatively high; the protective measures are complete; the connection performance is stable; internal conductor deformation caused by extrusion or treading and the like is not easily generated; and the service lifetime is longer, so that the use cost is reduced to a certain extent.

Description

technical field [0001] The invention relates to a cable, in particular to a fireproof and flame retardant cable. Background technique [0002] At present, with the rapid development of the national economy, cables are widely used in various power stations, such as nuclear power plants, thermal power plants, etc., as well as subway stations, power plants, high-rise buildings, military facilities, oil platforms and other fields. The quality and function requirements are getting higher and higher; ordinary cables usually use halogen-containing materials such as PVC insulation layer as the sheath layer, and its structure is not tight. Thick smoke makes rescuers and disaster-affected people trapped or even suffocated to death by the smoke, which makes it difficult to carry out rescue work and the rescue efficiency is low. At the same time, the combustion of halogen-containing materials will produce a large amount of toxic gases and pollute the atmosphere. In the event of a fire,...

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Problems solved by technology

[0002] At present, with the rapid development of the national economy, cables are widely used in various power stations, such as nuclear power plants, thermal power plants, etc., as well as subway stations, power plants, high-rise buildings, military facilities, oil platforms and other fields. The quality and function requirements are getting higher and higher; ordinary cables usually use halogen-containing materials such as PVC insulation layer as the sheath layer, and its structure is not tight. Thick smoke makes the rescuers and victims trapped by the smoke and even suffocates to death, which makes the rescue work difficult and the rescue efficiency is low. At the same time, the combustion of halogen-containing materials will produce a large amount of toxic gases and pollute the atmosphere.

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