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Monitoring type fireproof cable

A fire-resistant cable and cable technology, applied in the direction of insulated cables, bendable cables, cable/conductor manufacturing, etc., can solve the problems of difficult installation, difficult to bend, complicated production process, etc., and achieve high flame-retardant and fire-resistant environmental protection performance, The effect of increasing the number of bending times and avoiding property damage

Pending Publication Date: 2020-04-21
HANGZHOU HONGYAN CABLE +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The copper conductive core, copper outer sheath and insulating layer of traditional mineral insulated cables are densely integrated. Due to the complex production process, high price and high hardness of mineral insulated cables, it is not easy to bend during construction, so no matter from In terms of cost reduction or construction technology, the length of the order must be quite accurate
At the same time, since the cross-sectional area of ​​the cable is greater than 25mm 2 It can only be produced as a single core, and the cable length is limited by the maximum delivery length, which makes it difficult for mineral insulated cables to be mass-produced and difficult to install

Method used

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  • Monitoring type fireproof cable

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Embodiment Construction

[0023] Such as figure 1 As shown, a fireproof cable for monitoring and its preparation method. The flexible stranded conductor 1 adopts the conductor structure of category 2 and category 5 in GB / T3956-2008, which has a wider application range and can meet the needs of different occasions. Cable category 5 conductors are thinner than category 2 monofilaments, are more flexible, have longer flex life, and are easier to lay. For category 5 conductors, small cross-sections are generally made by one-time stranding, and large cross-sections are generally produced by strand stranding first, and then double-strand stranding. After the re-twisting is completed, a layer of polyester tape can be added to prevent the core from loosening.

[0024] Composite insulating layer 2 The composite insulating layer can be divided into refractory mica tape and ceramic silicon rubber tape according to the different mineral insulating materials; it can be divided into cross-linked polyethylene insula...

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Abstract

The invention relates to a monitoring type fireproof cable. The cable sequentially comprises a temperature measuring optical cable, an insulating cable core, a cable core flame-retardant wrapping tapelayer, a flame-retardant environment-friendly inner protection layer and a flame-retardant environment-friendly outer protection layer from the inner layer to the outer layer, wherein the insulatingcable core comprises a flexible stranded conductor and a composite insulating layer wrapping the flexible stranded conductor; and the parts among the temperature measuring optical cable, the insulating cable core and the cable core flame-retardant wrapping tape layer are filled with an insulating filler. According to the invention, the flame-retardant and fire-resistant performance of the cable istruly improved, the reactive loss of the cable is reduced, and the current-carrying capacity of the cable is increased; the special multi-level monitoring structure is adopted, the operation condition of the cable under the high-load condition can be monitored online in real time, early warning information can be sent out in time when the cable is affected by the outside, and large property lossis avoided.

Description

technical field [0001] The invention relates to a fireproof cable for monitoring, which is mainly used in power transmission and distribution lines with a rated voltage of 0.6 / 1kV or below for electric energy transmission. It can also be used as a control signal in a circuit with a rated voltage of 450 / 750V and below. It belongs to the high-tech field of cables. Background technique [0002] High-rise buildings in today's society have become an important place for many citizens' daily work and life, but fire extinguishing in high-rise buildings has become an international fire protection problem. Traditional cables (including flame-retardant, low-smoke and low-halogen, low-smoke and zero-halogen and their corresponding fire-resistant cables) will have smoke and harmful gases when they catch fire, are burned or are damaged by long-term overload insulation, and they cannot fully meet the fire protection requirements. There are a lot of CO, CO in the smoke produced when the P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/04H01B7/17H01B7/29H01B7/295H01B7/32H01B9/02H01B13/00H01B13/22
CPCH01B7/04H01B7/17H01B7/29H01B7/295H01B7/324H01B9/02H01B13/00H01B13/22
Inventor 刘陶龙
Owner HANGZHOU HONGYAN CABLE
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