Refractory power flexible cable

A flexible cable, fire-resistant technology, applied in power cables, insulated cables, cables, etc., can solve the problems of easy falling off of mica sheets, poor stability, small bending radius, etc., to reduce casualties and property losses, good electrical insulation performance, The effect of good softness properties

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

AI Technical Summary

Problems solved by technology

Mineral insulated metal sheathed cables require special production equipment, large capital investment, high production costs, and the outer sheath is made of metal, the product has a large specificity, small bending radius, and difficult transportation, installation and laying; mica tape wrapped fire-resistant cables It cannot pass the spra

Method used

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  • Refractory power flexible cable

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Embodiment Construction

[0018] The present invention will be further described below through specific embodiments and in conjunction with the accompanying drawings.

[0019] The structure of the fire-resistant power flexible cable is as follows: figure 1 As shown, it includes a conductor 1 , a refractory insulating layer 2 , a high temperature resistant filling rope 3 , a refractory layer 4 and an outer sheath 5 from inside to outside.

[0020] It is worth noting that the insulating layer is made of asbestos.

[0021] It is worth noting that the outer sheath is composed of a fireproof layer, a filling layer and a heat insulation layer.

[0022] It is worth noting that mullite particles are added in the fireproof layer.

[0023] It should be noted that the filling layer is asbestos, rock wool or a mixture of asbestos and rock wool.

[0024] It is worth noting that the heat insulation layer is Naji heat insulation soft felt.

[0025] The conductor 1 stranded by multiple strands of tinned or non-tin...

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PUM

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Abstract

The invention discloses a refractory power flexible cable. The refractory power flexible cable comprises a cable core consisting of at least one insulated wire core, a refractory layer encircled on the cable core and an external protection layer wrapping the refractory layer in an extruding manner, wherein the insulated wire core comprises a conductor produced by a conductive material and a refractory insulation layer wrapping the outer layer of the conductor in an extending manner, a gap between the insulated wire core and the refractory layer is filled with a high-temperature filling rope, the refractory layer adopts a ceramic fireproof and refractory silicone rubber and high temperature-resistant glass fiber cloth composite belt layer, and double layers are overlapped and bound on the cable core in opposite positions. The cable disclosed by the invention is excellent in electric insulation performance, good in softness, resistance to high temperature and low temperature, and excellent in fireproofness and fire resistance; the cable is further simple in processing technology and convenient to transport and mount.

Description

technical field [0001] The invention relates to electric wires and cables, in particular to a power flexible cable with fire-proof and fire-resistant functions. Background technique [0002] With the development of modern power industry and the rapid growth of urban population, high-rise buildings, hotels, large supermarkets, hospitals, subways, power plants, nuclear power plants, warehouses, and airports continue to increase. Fire-resistant and fire-resistant cables are widely used in these important public places . And with the proposal of RoHS environmental directives by the European Parliament and the Council of the European Union, people's environmental protection requirements for cables are also getting higher and higher. [0003] At present, there are two main types of fire-resistant and fire-resistant cables in my country's cable industry: one is a relatively common composite fire-resistant cable with fire-resistant mica tape wrapped and insulated; the other is a mi...

Claims

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Application Information

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IPC IPC(8): H01B7/29H01B7/295H01B9/00
Inventor 荆彦铭
Owner 宁夏海洋线缆有限公司
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