CN215954906U

CN215954906U - Novel B1-grade environment-friendly low-toxicity monitoring instrument cable for rail transit

Info

Publication number: CN215954906U
Application number: CN202121384741.6U
Authority: CN
Inventors: 李兴霞; 王伟; 费尤战; 房忠军
Original assignee: JIANGSU JIANGYANG CABLE CO Ltd
Current assignee: JIANGSU JIANGYANG CABLE CO Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-03-04
Anticipated expiration: 2031-06-21

Abstract

The utility model relates to a novel B1-grade environment-friendly low-toxicity monitoring instrument cable for rail transit. The cable include the cable core and set up the oversheath outside the cable core, the cable core in be provided with many insulation core, insulation core include the conductor, set up the insulating layer outside the conductor and set up the branch shielding layer outside the insulating layer, many insulation core between the space be provided with the packing, many insulation core set up outward around the band and constitute the cable core, around the external total shielding layer that sets up of covering, total shielding layer set up the flame retardant coating outward, the flame retardant coating outward set up the armor, the armor outside set up the oversheath. The utility model has the advantages of low smoke toxicity, less combustion drops/particles, low smoke yield, less total heat release amount, self-extinguishing property for flame spread, good shielding effect, strong signal interference resistance, high-quality environment-friendly materials, reduction of environmental pollution, human body injury and the like.

Description

Novel B1-grade environment-friendly low-toxicity monitoring instrument cable for rail transit

Technical Field

The utility model relates to a cable, in particular to a novel B1-grade environment-friendly low-toxicity monitoring instrument cable for rail transit.

Background

Along with the improvement of the requirements of rail transit on the cable, the cable is required to have good comprehensive performance, such as the advantage of combined use, low smoke toxicity, less burning drops/particles, low smoke yield, less total heat release amount, self-extinguishing property of flame spread, good shielding effect, strong signal interference resistance, high-quality environment-friendly materials, reduction of environmental pollution and human body damage, convenience in construction and laying and the like.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel B1-grade environment-friendly low-toxicity monitoring instrument cable for rail transit, which is used for solving the problems in the prior art.

The technical scheme of the utility model is as follows: the utility model provides a novel B1 level environmental protection low toxicity track is monitor instrument cable for traffic, the cable include the cable core and set up the oversheath outside the cable core, the cable core in be provided with many insulation core, insulation core include the conductor, set up the insulating layer outside the conductor and set up the branch shielding layer outside the insulating layer, many insulation core between the space be provided with the packing, many insulation core set up outward and constitute the cable core around the band, set up total shielding layer around the outband, total shielding layer set up the flame retardant coating outward, the flame retardant coating outside set up the armor, the armor outside set up the oversheath.

Preferably, the conductors are tinned seven-strand stranded copper conductors, the insulating layers are crosslinked polyethylene insulating layers, and the tinned copper wire braided sub-shielding layers are arranged after the two groups of tinned seven-strand stranded copper conductors are twisted in pairs.

Preferably, the number of the insulated wire cores is seven, and the insulated wire cores are uniformly distributed in the cable core in a surrounding mode.

Preferably, the filling is a bulking glass fiber filling.

Preferably, the wrapping tape is of a double-layer structure and is respectively a high-flame-retardant wrapping tape and a polyester wrapping tape.

Preferably, the total shielding layer is a tinned copper wire woven total shielding layer.

Preferably, the fire-retardant layer is a high oxygen index fire-retardant layer.

Preferably, the armor layer is a high tensile steel wire braided armor layer.

Preferably, the outer sheath is a B1 grade environment-friendly outer sheath.

The utility model has the beneficial effects that: the cable has the advantages of good comprehensive performance, combined use, low smoke toxicity, less burning drops/particles, low smoke yield, less total heat release amount, self-extinguishing property for flame spread, good shielding effect, strong signal interference resistance, high-quality environment-friendly materials, reduction of environmental pollution, human body injury and the like.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure, 1 is a conductor, 2 is an insulating layer, 3 is a sub-shielding layer, 4 is filling, 5 is a wrapping tape, 6 is a total shielding layer, 7 is a fireproof layer, 8 is an armor layer, and 9 is an outer sheath.

Detailed Description

The utility model provides a novel B1 level environmental protection low toxicity track is monitor instrument cable for traffic, the cable include the cable core and set up oversheath 9 outside the cable core, the cable core in be provided with many insulation core, insulation core include conductor 1, set up at 1 outer insulating layer 2 of conductor and set up at 2 outer branch shielding layer 3 of insulating layer, many insulation core between the space be provided with and fill 4, many insulation core set up outward and constitute the cable core around band 5, 5 outer total shielding layers 6 of setting around band, 6 outer fire protection layer 7 that set up of total shielding layer, 7 outer armor 8 that set up of fire protection layer, 8 outer oversheath 9 that set up of armor.

The conductor 1 is a tinned seven-strand stranded copper conductor, the insulating layer 2 is a cross-linked polyethylene insulating layer, and the tinned copper wire braided sub-shielding layer 3 is arranged after the two groups of tinned seven-strand stranded copper conductors 1 are twisted in pairs.

The number of the insulated wire cores is seven, and the insulated wire cores are uniformly distributed in the cable core in a surrounding manner.

And the filler 4 is filled with the expanded glass fiber, so that the roundness of the cable core during cabling is improved, the convenience of construction and laying is improved, and the working efficiency is improved.

The winding tape 5 is of a double-layer structure and is respectively a high-flame-retardant winding tape and a polyester winding tape, the polyester winding tape in the winding tape 5 of the double-layer structure improves the clinging degree of the cable core, and the high-flame-retardant winding tape plays a role in preventing fire and flame and preventing flame from spreading.

The total shielding layer 6 is a tinned copper wire woven total shielding layer, the cable adopts double shielding of branch shielding and total shielding, the shielding effect is good, and the signal interference resistance is strong.

The fireproof layer 7 is a high-oxygen-index fireproof layer, reduces drops and particles generated during cable combustion, is low in smoke yield, reduces heat release, and reduces environmental pollution and human body damage.

The armor layer 8 is a high tensile steel wire woven armor layer.

The outer sheath 9 is a B1-grade environment-friendly outer sheath.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a novel B1 level environmental protection low toxicity monitor instrument cable for track traffic which characterized in that: the cable include cable core and oversheath (9) of setting outside the cable core, the cable core in be provided with many insulation core, insulation core include conductor (1), set up insulating layer (2) outside conductor (1) and set up branch shielding layer (3) outside insulating layer (2), many insulation core between the space be provided with packing (4), many insulation core set up outward and constitute the cable core around band (5), around band (5) set up total shielding layer (6) outward, total shielding layer (6) set up flame retardant coating (7) outward, flame retardant coating (7) set up armor (8) outward, armor (8) set up oversheath (9) outward.

2. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the conductor (1) is a tinned seven-strand stranded copper conductor, the insulating layer (2) is a cross-linked polyethylene insulating layer, and the tinned copper wire braided sub-shielding layer (3) is arranged after the two groups of tinned seven-strand stranded copper conductors (1) are twisted in pairs.

3. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the number of the insulated wire cores is seven, and the insulated wire cores are uniformly distributed in the cable core in a surrounding manner.

4. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the filling (4) is expanded glass fiber filling.

5. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the wrapping tape (5) is of a double-layer structure and is respectively a high-flame-retardant wrapping tape and a polyester wrapping tape.

6. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the total shielding layer (6) is a tinned copper wire woven total shielding layer.

7. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the fire-proof layer (7) is a fire-proof layer with high oxygen index.

8. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the armor layer (8) is a high tensile steel wire woven armor layer.

9. The novel B1-grade environmental-friendly low-toxicity monitoring instrument cable for rail transit as claimed in claim 1, wherein: the outer sheath (9) is a B1-grade environment-friendly outer sheath.