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Fire-resisting water-blocking cable

A fire-resistant water-blocking and cable technology, applied in the direction of insulating cables, cables, circuits, etc., can solve the problems of weak waterproof and fire-resistant ability, poor anti-shielding ability, etc., and achieve high anti-static interference, strong waterproof and fire-resistant ability

Inactive Publication Date: 2015-05-20
CHENGDU JETCOM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its anti-shielding ability is poor, and its waterproof and fire-resistant ability is weak

Method used

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  • Fire-resisting water-blocking cable

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Experimental program
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Effect test

Embodiment Construction

[0015] The present invention is further explained below:

[0016] A fire-resistant and water-blocking cable, characterized in that it includes at least three conductors 1, all of which are wrapped with an insulating layer 2, and all conductors 1 wrapped with the insulating layer 2 are wrapped with an inner shielding layer 3, and the inner shielding layer 3 and the insulating layer 2 The gaps between them are filled with fillers 4, the inner shielding layer 3 wraps the outer shielding layer 5, the outer shielding layer 5 wraps the water blocking layer 6, and the water blocking layer 6 wraps the sheathing layer 7 outside.

[0017] The filling material 7 is a fire-resistant water-blocking tape, which includes a mica layer, and the two sides of the mica layer are respectively bonded with a reinforcing layer made of glass fiber mesh, and a film made of water-blocking powder is bonded on the reinforcing layer to form a water-blocking layer. water layer.

[0018] The filler mate...

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PUM

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Abstract

The invention relates to the technical field of cables and provides a fire-resisting water-blocking cable comprising at least three conductors (1). Each conductor is wrapped with an insulation layer (2), all the conductors (1) wrapped with the insulation layers (2) are wrapped with inner shielding layers (3), gaps between the inner shielding layers (3) and the insulation layers (2) are filled with filler (4), all the inner shielding layers (3) are wrapped with an outer shielding layer (5) which is wrapped with a water-blocking layer (6), the water-blocking layer (6) is wrapped with a sheath layer (7), each of the inner shielding layers and the outer shielding layer comprises copper foil, and aluminum foil is arranged on both sides of the copper foil.

Description

technical field [0001] The invention relates to the technical field of cables and provides a fire-resistant and water-blocking cable. Background technique [0002] When cables are laid in light rail, subway or indoors, high requirements are put forward for their flame retardancy and fire resistance. In order to meet the requirements of the cable use environment, the product structure is designed according to different flame-retardant and fire-resistant requirements. Currently widely used railway signal cables, railway digital signal cables, railway inner shielded digital signal cables, rail transit signal cables, and transponder data transmission cables are divided into two categories, one is the integrated sheath structure, the other is the aluminum sheath structure . Its anti-shielding ability is poor, and its waterproof and fire-resistant ability is weak. [0003] Since the world's first low-voltage power cable (rubber belt wrapped copper conductor) was produced in 183...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B7/17H01B7/282H01B7/29
Inventor 李亮
Owner CHENGDU JETCOM TECH
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