CN214377775U

CN214377775U - Self-positioning fault temperature-sensing fireproof cable

Info

Publication number: CN214377775U
Application number: CN202120806480.6U
Authority: CN
Inventors: 蒋宝军; 张书军; 张宝龙; 李宏章; 王怀安; 张红军; 纪艳丽; 王振彪; 窦丽梅; 薛林; 李彬; 董瀚元
Original assignee: Tangshan Huatong Special Cable Manufacturing Co ltd
Current assignee: Tangshan Huatong Special Cable Manufacturing Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-10-08
Anticipated expiration: 2031-04-20

Abstract

The utility model relates to a can be from location trouble temperature sensing fireproof cable belongs to mixed cable technical field of photoelectricity. The technical scheme is as follows: the tight-sleeved optical fiber (1) is arranged in the stainless steel pipe (2) to form an optical unit structure; a plurality of copper conductors (3) are stranded around the stainless steel pipe by taking the optical unit structure as the center, and are extruded with a crosslinked polyethylene insulating layer (4) to form a composite insulating wire; a plurality of compound insulated wires are twisted into a cable core, a low-smoke halogen-free filling layer (6) is arranged between the compound insulated wires in the cable core, a low-smoke halogen-free wrapping tape (7), an inner sheath (8), a double-layer steel tape armor layer (9) and an outer sheath (10) are sequentially arranged outside the cable core, and a plurality of lining optical fibers (5) are uniformly arranged between the low-smoke halogen-free wrapping tape and the inner sheath (8) along the circumferential direction. The utility model has the advantages that: the optical unit structure and the lining optical fiber are arranged, so that the operation conditions of the cable conductor and the outer protective layer can be monitored, and the damaged position of the cable in fault can be accurately positioned.

Description

Self-positioning fault temperature-sensing fireproof cable

Technical Field

The utility model relates to a can be from location trouble temperature sensing fireproof cable belongs to mixed cable technical field of photoelectricity.

Background

With the rapid development of social economy, the dependence of daily life and production and manufacturing of people on electric power is stronger and stronger, the trip, basic life and the like of people are affected to different degrees after power failure, and a large amount of economic loss is caused for enterprises; however, problems such as short circuit caused by mouse bite and the like can be generated in the long-term operation of the power system; how to quickly locate the accident point and recover the power supply as soon as possible is an urgent problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can be from location trouble temperature sensing fireproof cable through setting up light unit structure and lining optic fibre, can realize monitoring cable conductor and outer jacket operational aspect, impaired position when can pinpoint the cable fault has solved the problem that exists among the background art.

The technical scheme of the utility model is that:

a self-positioning fault temperature-sensing fireproof cable comprises a tight-buffered optical fiber, a stainless steel pipe, a copper conductor, a cross-linked polyethylene insulating layer, a lining optical fiber, a low-smoke halogen-free filling layer, a low-smoke halogen-free wrapping tape, an inner sheath, a double-layer steel tape armor layer and an outer sheath, wherein the tight-buffered optical fiber is arranged in the stainless steel pipe to form an optical unit structure; a plurality of copper conductors are stranded around the stainless steel pipe by taking the optical unit structure as the center, and are extruded with a crosslinked polyethylene insulating layer to form a composite insulating wire; a plurality of compound insulated wires are twisted into a cable core, a low-smoke halogen-free filling layer is arranged between the compound insulated wires in the cable core, a low-smoke halogen-free wrapping tape, an inner sheath, a double-layer steel tape armor layer and an outer sheath are sequentially arranged outside the cable core, and a plurality of lining optical fibers are uniformly arranged between the low-smoke halogen-free wrapping tape and the inner sheath along the circumferential direction.

The tight-buffered optical fiber and the lining optical fiber are both connected with monitoring equipment, so that the characteristic that the optical fiber is not interfered by electromagnetism is fully utilized, and the running states of the line temperature and the like can be monitored in real time.

The number of the lining layer optical fibers is eight, the lining layer optical fibers are uniformly distributed in the inner sheath, and when a system where the cable is located fails, fault points can be quickly located by detecting the eight-core lining layer optical fibers.

The inner sheath is a ceramic polyolefin inner sheath which can be burnt into a ceramic shell when encountering fire, thereby playing a role in isolating flame.

The double-layer steel strip armor layer is wrapped outside the inner sheath in a wrapping mode through galvanized steel strip gaps, and the mechanical protection effect is achieved.

The outer sheath is a halogen-free low-smoke flame-retardant polyolefin outer sheath, and is extruded outside the double-layer steel-tape armor layer.

The monitoring device is a device commonly known in the art.

The utility model has the advantages that: through set up the light unit structure in the copper conductor, realize monitoring cable conductor behavior, through set up the lining optic fibre in the inner sheath, realize monitoring the complete condition of cable outer jacket, impaired position when both combine can pinpoint the cable fault. By adopting the ceramic polyolefin inner sheath, the flame-retardant polyolefin inner sheath can be burnt into a ceramic shell when encountering fire, thereby playing a role in isolating flame.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure: the cable comprises a tight-buffered optical fiber 1, a stainless steel pipe 2, a copper conductor 3, a crosslinked polyethylene insulating layer 4, a lining optical fiber 5, a low-smoke halogen-free filling layer 6, a low-smoke halogen-free wrapping tape 7, an inner sheath 8, a double-layer steel-tape armor layer 9 and an outer sheath 10.

Detailed Description

The present invention will be further described with reference to the accompanying drawings by way of examples.

A self-positioning fault temperature-sensing fireproof cable comprises a tight-buffered optical fiber 1, a stainless steel pipe 2, a copper conductor 3, a crosslinked polyethylene insulating layer 4, a lining optical fiber 5, a low-smoke halogen-free filling layer 6, a low-smoke halogen-free wrapping tape 7, an inner sheath 8, a double-layer steel belt armor layer 9 and an outer sheath 10, wherein the tight-buffered optical fiber 1 is arranged in the stainless steel pipe 2 to form an optical unit structure; a plurality of copper conductors 3 are stranded around the stainless steel pipe 2 by taking the optical unit structure as the center, and are extruded with a crosslinked polyethylene insulating layer 4 to form a composite insulating wire; a plurality of compound insulated wires are twisted into a cable core, a low-smoke halogen-free filling layer 6 is arranged between the compound insulated wires in the cable core, a low-smoke halogen-free wrapping tape 7, an inner sheath 8, a double-layer steel tape armor layer 9 and an outer sheath 10 are sequentially arranged outside the cable core, and a plurality of lining optical fibers 5 are uniformly arranged between the low-smoke halogen-free wrapping tape 7 and the inner sheath 8 along the circumferential direction.

The tight-buffered optical fiber 1 and the lining optical fiber 5 are both connected with monitoring equipment, so that the characteristic that the optical fibers are not interfered by electromagnetism is fully utilized, and the running states of the line temperature and the like can be monitored in real time.

The number of the coated optical fibers 5 is eight, the coated optical fibers are uniformly distributed in the inner sheath, and when a system where the cable is located fails, fault points can be quickly located by detecting the eight-core coated optical fibers 5.

The inner sheath 8 is a ceramic polyolefin inner sheath which can be burnt into a ceramic shell when encountering fire, and plays a role in isolating flame.

The double-layer steel strip armor layer 9 is wrapped outside the inner sheath 8 by adopting galvanized steel strip gaps, and plays a role in mechanical protection.

The outer sheath is a halogen-free low-smoke flame-retardant polyolefin outer sheath 10 and is extruded outside the double-layer steel tape armor layer 9.

In this embodiment, referring to fig. 1, a composite insulated wire containing tight-buffered optical fiber is used as a core structure of a cable, and a drawn stainless steel tube 2 is welded outside the tight-buffered optical fiber 1 to form an optical unit structure; a plurality of copper conductors 3 are twisted outside the optical unit structure, and crosslinked polyethylene insulating layers 4 are extruded outside the copper conductors to form a composite insulating wire, wherein the crosslinked polyethylene insulating layers are different in color; the multi-core composite insulated wires are twisted into a cable core according to a certain pitch, a low-smoke halogen-free filling layer 6 is filled in a gap between the multi-core composite insulated wires, a low-smoke halogen-free wrapping tape 7 is wound outside the cable core, a ceramic polyolefin inner sheath is extruded outside the low-smoke halogen-free wrapping tape 7, and 8 lining optical fibers 5 are uniformly distributed in the inner sheath; a double-layer steel tape armor layer 9 is wound at a gap outside the inner sheath, and a halogen-free low-smoke flame-retardant polyolefin outer sheath is extruded outside the double-layer steel tape armor layer 9.

The utility model adopts a tight-jacketed optical fiber and stainless steel pipe type optical unit structure, the stainless steel pipe has higher mechanical strength, and the tight-jacketed optical fiber can be effectively protected; the lining optical fiber is arranged in the inner sheath, the characteristic that the tight-buffered optical fiber and the lining optical fiber are not interfered by electromagnetism is fully utilized, and the tight-buffered optical fiber and the lining optical fiber are connected into the monitoring equipment, so that the running states of the line temperature and the like can be monitored in real time.

Claims

1. The utility model provides a can be from location trouble temperature sensing fireproof cable which characterized in that: the optical fiber cable comprises tight-buffered optical fibers (1), a stainless steel pipe (2), a copper conductor (3), a crosslinked polyethylene insulating layer (4), lining optical fibers (5), a low-smoke halogen-free filling layer (6), a low-smoke halogen-free wrapping tape (7), an inner sheath (8), a double-layer steel tape armor layer (9) and an outer sheath (10), wherein the tight-buffered optical fibers (1) are arranged in the stainless steel pipe (2) to form an optical unit structure; a plurality of copper conductors (3) are stranded around the stainless steel pipe (2) by taking the optical unit structure as the center, and are extruded with a crosslinked polyethylene insulating layer (4) to form a composite insulating wire; a plurality of compound insulated wires are twisted into a cable core, a low-smoke halogen-free filling layer (6) is arranged between the compound insulated wires in the cable core, a low-smoke halogen-free wrapping tape (7), an inner sheath (8), a double-layer steel tape armor layer (9) and an outer sheath (10) are sequentially arranged outside the cable core, and a plurality of lining optical fibers (5) are uniformly arranged between the low-smoke halogen-free wrapping tape (7) and the inner sheath (8) along the circumferential direction.

2. The self-locatable fault-temperature-sensing fireproof cable of claim 1, wherein: the tight-buffered optical fiber (1) and the lining optical fiber (5) are both connected with monitoring equipment.

3. The self-locatable fault-temperature-sensing fireproof cable of claim 1 or 2, wherein: the number of the lining optical fibers (5) is eight, and the lining optical fibers are uniformly distributed in the inner sheath.

4. The self-locatable fault-temperature-sensing fireproof cable of claim 1 or 2, wherein: the inner sheath (8) is a ceramic polyolefin inner sheath.

5. The self-locatable fault-temperature-sensing fireproof cable of claim 1 or 2, wherein: the outer sheath is a halogen-free low-smoke flame-retardant polyolefin outer sheath (10).