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Novel fire-resistant power cable with polyvinyl chloride insulating sheath

A technology of polyvinyl chloride and insulating sheath, which is applied to insulated cables, power cables, insulated conductors, etc., can solve the problems of complex process, difficult construction, high price, etc., and achieve high safety, low cost, and good fire resistance. Effect

Inactive Publication Date: 2015-04-29
宁夏海洋线缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the existing mineral insulated cables can still maintain normal power supply for a period of time after a fire, there are problems of high price, complicated process and difficult construction

Method used

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  • Novel fire-resistant power cable with polyvinyl chloride insulating sheath

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Embodiment Construction

[0013] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0014] refer to figure 1 , the specific embodiment adopts the following technical solutions: a new type of polyvinyl chloride insulated sheathed fire-resistant power cable, including a conductor 1, an insulating layer 2, a filling layer 3, a wrapping tape wrapping layer 4, an inner lining layer 5, a steel strip The armor layer 6 and the outer sheath 7, the insulating layer 2 is wrapped around the conductor 1; the filling layer 3 is wrapped around the outer layer of the insulating layer 2; the wrapping tape wrapping layer 4 is wrapped around the filling layer 3 In addition, the wrapping tape is wrapped with an inner lining layer 5, a steel tape armor layer 6 and an outer sheath 7 in sequence around the wrapping layer 4. The outer sheath 7 is a poly...

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Abstract

The invention discloses a novel fire-resistant power cable with a polyvinyl chloride insulating sheath. The power cable includes conductors, insulating layers, a filling layer, a warping tape lapping layer, an inner liner, a steel tape armoring layer and an outer sheath, wherein each insulating layer wraps a conductor; the filling layer wraps the insulating layers; the lapping layer formed by the warping tape wraps the filling layer; the wrapping tape lapping layer is wrapped by the inner liner, the steel tape armoring layer and the outer sheath in sequence. The novel fire-resistant power cable provided by the invention is good in fire resistance, resistant to high temperature, low in cost and high in safety.

Description

technical field [0001] The invention relates to a novel polyvinyl chloride insulated and sheathed fire-resistant power cable. Background technique [0002] New PVC insulated and sheathed fire-resistant power cables are widely used in high-rise buildings, underground railways, underground streets, large power stations and important industrial and mining enterprises and other places related to fire safety and lifesaving, such as fire-fighting equipment and emergency guide lights and other emergency facilities. Power supply lines and control lines. Although the existing mineral insulated cables can still maintain normal power supply for a period of time after a fire, there are problems of high price, complicated process and difficult construction Contents of the invention [0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a new type of fire-resistant power cable with polyvinyl chloride insulated sheath, which has good fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B9/00H01B7/17H01B7/295
Inventor 荆彦铭
Owner 宁夏海洋线缆有限公司
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