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Mobile self-supporting high flame retardant metal shielding monitoring flexible cable for coal mines

A self-supporting, metal shielding technology, used in power cables with shielding/conducting layers, power cables, insulated cables, etc., can solve the problems of short life and poor reliability, and achieve low cost, easy wrapping, and shielding. Excellent performance

Active Publication Date: 2016-09-14
ZHONGGUAN CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The coal mine shielding monitoring flexible cable in the prior art cannot meet the above requirements, and its use reliability is poor and its service life is short

Method used

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  • Mobile self-supporting high flame retardant metal shielding monitoring flexible cable for coal mines

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Embodiment Construction

[0028] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, the mobile self-supporting high flame-retardant metal shielded monitoring flexible cable for coal mines in this embodiment includes at least one wire core, and the structure of a single wire core is: including power core conductor 1, power core conductor 1 The periphery of the cable is wrapped with a conductor shielding layer 2, an insulating layer 3, and a composite shielding layer 4 in turn; multiple wire cores are twisted to form a cable core, and a combined load-bearing core 11 is placed in the middle of the cable core, and a filler 5 is also arranged on the cable core. The periphery of the filling material 5 is sequentially wrapped with the first oxygen barrier layer 9, the inner sheath 7, the composite flame retardant layer 8, the second oxygen barrier layer 12 and the outer sheath 10, which are loca...

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Abstract

The invention relates to a mobile self-supporting high flame-retardant metal shielding monitoring flexible cable for coal mines, which includes at least one wire core. A conductor shielding layer, an insulating layer, and a composite shielding layer are wrapped in turn; multiple wire cores are twisted to form a cable core, and a combined load-bearing core is placed in the middle of the cable core, and a filler is also arranged on the cable core. The periphery is sequentially wrapped with a first oxygen barrier layer, an inner sheath, a composite flame retardant layer, a second oxygen barrier layer and an outer sheath, and monitoring wire cores are arranged at intervals between the first oxygen barrier layer and the inner sheath. It has excellent high flame retardancy and non-destructive signal transmission, and has the self-supporting performance of the cable, which reduces the space requirements for laying connections and expands the scope of use.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a mobile self-supporting high flame-retardant metal shielding monitoring flexible cable for coal mines. Background technique [0002] Coal mine shielded monitoring flexible cable is one of the important electrical supporting products in coal mines. Its use environment is harsh and safety requirements are strict. It is a wire and cable variety with high performance requirements and difficult manufacturing technology. ℃; single vertical afterburning time < 60s and load burning afterburning time < 240 s; sheath oxygen index > 38 and other requirements. Due to the non-destructive requirements of suspension laying and communication data signals during use, the mobile metal shielded monitoring flexible cable for coal mines must not only meet its own flame-retardant and fire-resistant requirements, but also have self-supporting properties. The coal mine shielding monitoring typ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B9/00H01B9/02H01B7/22H01B7/29H01B7/295H01B7/02H01B7/28H01B7/04
CPCY02A30/14
Inventor 陈信伊潘宜鹏彭永领周俊民刘洁
Owner ZHONGGUAN CABLE CO LTD
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