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Low smoke zero halogen fire-resistant soft cable

A flexible cable and fire-resistant technology, applied in the field of fire-resistant flexible cables, can solve the problem of the cable losing its fire-resistant effect, and achieve the effect of improving safety and ensuring life safety.

Inactive Publication Date: 2018-04-17
JIANGSU ZHONGLI GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at this stage, the common fire-resistant cables in China can only reach a maximum fire-resistant temperature of 750-850°C. Even in the BS 6387 European fire-resistant standard, the maximum fire-resistant temperature is only 950°C. Once a large-scale fire occurs, the temperature exceeds 950°C , this series of cables will lose their fire resistance

Method used

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  • Low smoke zero halogen fire-resistant soft cable

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] like figure 1 As shown, a low-smoke halogen-free fire-resistant flexible cable, from outside to inside:

[0018] Sheath layer 1, the material is an environmentally friendly low-smoke and halogen-free polyolefin material with a high temperature resistance of 110°C, and the 110°C environment-friendly low-smoke and halogen-free polyolefin with the brand name DW9022-C01 of China Guangdong Nuclear Power Delta (Jiangsu) Plastic Chemical Co., Ltd. Sheath material, which is coated on the insulated core of the cable or the cabled core of the multi-core cable by extrusion process. Compared with the conventional low-smoke and halogen-free sheath material of this kind of products on the market, which is a temperature-resistant 90°C material, and its aging resistance test condition is 100°C, 168h, the environmentally friendly low-smoke, ha...

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Abstract

The invention discloses a low smoke zero halogen fire-resistant soft cable. The low smoke zero halogen fire-resistant soft cable sequentially comprises a sheath layer, an insulation layer, a mica tapelayer and conductors from outside to inside, wherein the material of the sheath layer is an environmental-friendly low smoke zero halogen polyolefin material resistant to a high temperature of 110 DEG C, the material of the insulation layer is a cross-linked polyethylene insulation material resistant to a high temperature of 110 DEG C, the mica tape layer is formed by winding dual layers of calcined gold mica tapes in a lamination and overlap joint way, each conductor is formed by twisting a plurality of annealing naked copper wires, the fire-resistant temperature of the cable reaches 1,050 DEG C and is infinitely approximate to a melting point of copper, the cable still can effectively develop an effect even the temperature of large fire exceeds 950 DEG C but is lower than the melting point of copper, the application safety is greatly improved, and the life safety of a person is guaranteed.

Description

technical field [0001] The invention relates to a fire-resistant flexible cable, in particular to a low-smoke, halogen-free fire-resistant flexible cable whose fire-resistant temperature can reach 1050°C and can be widely used in shopping malls, hotels and other large-scale densely populated places. Background technique [0002] With the continuous rapid development of our country's economy, the decoration of important public places such as modern office buildings, hotels, restaurants, and railway stations has become more and more luxurious, and more and more combustible materials are used. The role of wires and cables is to transmit power and signals, to realize alarms, activation of fire-fighting facilities, rescue, etc. For the above-mentioned densely populated places, after a fire occurs, if the wires and cables cannot guarantee normal operation, the consequences will be disastrous. [0003] Fire-resistant wire is to ensure that the line is normally energized for a certa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/02H01B7/04H01B7/18H01B7/29
CPCH01B7/0275H01B7/04H01B7/187H01B7/292
Inventor 张锐刘焱鑫代子阳魏辰冰卢柏会王思元闫俊桥
Owner JIANGSU ZHONGLI GRP CO LTD
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