CN202171970U - Low-smoke halogen-free flame retardant fireproof cable used in urban railway system - Google Patents

Low-smoke halogen-free flame retardant fireproof cable used in urban railway system Download PDF

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Publication number
CN202171970U
CN202171970U CN201120273683XU CN201120273683U CN202171970U CN 202171970 U CN202171970 U CN 202171970U CN 201120273683X U CN201120273683X U CN 201120273683XU CN 201120273683 U CN201120273683 U CN 201120273683U CN 202171970 U CN202171970 U CN 202171970U
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CN
China
Prior art keywords
low
flame retardant
insulating barrier
halogen
cable
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Expired - Fee Related
Application number
CN201120273683XU
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Chinese (zh)
Inventor
王世民
张涛
张敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Pigeon Electric Wire and Cable Co Ltd
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Chongqing Pigeon Electric Wire and Cable Co Ltd
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Application filed by Chongqing Pigeon Electric Wire and Cable Co Ltd filed Critical Chongqing Pigeon Electric Wire and Cable Co Ltd
Priority to CN201120273683XU priority Critical patent/CN202171970U/en
Application granted granted Critical
Publication of CN202171970U publication Critical patent/CN202171970U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a low-smoke halogen-free flame retardant fireproof cable used in an urban railway system, comprising at least two compacted conductors, fireproof layers cladding surfaces of the compacted conductors, insulating layer cladding surfaces of the fireproof layers, a waterproof layer arranged outside the insulating layers and a sheath arranged outside the waterproof layer, wherein copper single lines are subjected to concentric standing and are compacted to form the compacted conductor, each fireproof layer comprises a synthesized mica tape and a glass fiber, the synthesized mica tape and the glass fiber successively clad the compacted conductor, the insulating layer is composed of extruded cross-linked polyethylene, the waterproof layer is composed of extruded high density polyethylene, and the sheath is prepared by extruded halogen-free low-smoke flame retardant polyolefin. The cable is high in flame retardant performance and fireproof performance, is low in smoke and free of halogen, and resists water along the radial direction, overcomes defects that the current cable is low in flame retardant performance and fireproof performance and lacks waterproof protection, so the cable is particularly suitable for being used in the urban railway system. The flame retardant performance and fireproof performance of the cable can respectively reach A class requirements of GB19666-2005 and GA306-2007 regulations.

Description

The low-smoke non-halogen flame-retardant fire-resisting cable is used in urban track traffic
Technical field
The utility model belongs to a kind of power transmission cable, and particularly a kind of city rail is with traffic low-smoke non-halogen flame-retardant fire-resisting cable.
Background technology
Along with quickening of urbanization process, urban transport problems is serious all the more, develops big capacity, environmental protection, energy-conservation track traffic and has become the first-selection in a lot of cities.As the important component part of urban track traffic power transmission system, urban track traffic is mainly used in the occasions that personnel are intensive, environment seals such as track traffic is along the line, tunnel, culvert, station with power cable.
According to the characteristics of urban track traffic, the cable of its application should have characteristics such as fire resistance, fire resistance, low smoke, zero halogen.At present domestic similar cable adopts common flame resistant cable design mostly, and is fire-retardant, fire resistance rating is on the low side, and do not design stop water.
The utility model content
The utility model technical problem to be solved provides the urban track traffic of a kind of high water proofing property, high flame resistance, high fire resistance, low smoke, zero halogen and uses the low-smoke non-halogen flame-retardant fire-resisting cable.
For solving as above technical problem, the utility model proposes following technical scheme:
The low-smoke non-halogen flame-retardant fire-resisting cable is used in urban track traffic, comprises the compact conductor that is at least two, coats the flame retardant coating on compact conductor surface, coats the insulating barrier on flame retardant coating surface, is located at the outer water blocking layer of insulating barrier, is located at the outer sheath of water blocking layer;
Wherein compact conductor presses moulding after by copper single line concentric stranding; Flame retardant coating is made up of wrapped synthetic mica tape, glass fibre belt on compact conductor successively; Insulating barrier is made up of the crosslinked polyethylene that extrudes; Water blocking layer is made up of the high density polyethylene (HDPE) that extrudes, and sheath is extruded by halogen-free and low-smoke flame-retardant polyolefin and forms.
Further, also comprise and be located at the inboard glass belt of water blocking layer in addition, and be filled in the mineral-filled material between insulating barrier and insulating barrier, insulating barrier and the glass belt, and the glass belt is made up of wrapped glass fibre belt outside mineral-filled material.
Further, also comprise the armour of being located between water blocking layer and the sheath, this armour is made up of wrapped steel band.
The utility model urban track traffic is adopted compact conductor with the low-smoke non-halogen flame-retardant fire-resisting cable, has reduced the conductor gap, plays certain vertically resistance effect; Flame retardant coating is made up of wrapped synthetic mica tape, glass fibre belt on compact conductor successively; Synthetic mica tape resistivity is high, heat resisting temperature can reach 1000 ℃; Glass fibre belt is met fire and is resolved into metal oxide and separate out the crystallization water; And in combustion process, form the carbonization structure, secluding air and play fire retardation.Under 950~1000 ℃ of high temperature, flame retardant coating can play insulating effect within a certain period of time, guarantees that circuit normally moves; Mineral-filled material and glass belt form filling and wrapped, and it has than high decomposition temperature and thermal insulation, with the sheath synergy, have improved fire resistance; High density polyethylene (HDPE) has effectively remedied halogen-free and low-smoke flame-retardant polyolefin sheathed in the deficiency aspect the water resistance as water blocking layer, improved the radially water resistance of cable; The sheath that adopts halogen-free and low-smoke flame-retardant polyolefin has also guaranteed good flame retardancy when having satisfied cable and aspect environmental protection such as low cigarette, low toxicity, requiring.
Following mask body combines embodiment and accompanying drawing that the utility model is further described.
Description of drawings
Fig. 1 is the structural representation of the utility model urban track traffic with first kind of embodiment of low-smoke non-halogen flame-retardant fire-resisting cable.
Fig. 2 is the structural representation of the utility model urban track traffic with second kind of embodiment of low-smoke non-halogen flame-retardant fire-resisting cable.
Fig. 3 is the structural representation of the utility model urban track traffic with the third embodiment of low-smoke non-halogen flame-retardant fire-resisting cable.
Among the figure: 1 is compact conductor; 2 is flame retardant coating; 3 is insulating barrier; 4 is mineral-filled material, and 5 is the glass belt, and 6 is water blocking layer; 7 is armour; 8 is sheath.
Embodiment
Embodiment one
As shown in Figure 1, the low-smoke non-halogen flame-retardant fire-resisting cable is used in the utility model urban track traffic, comprises two compact conductors 1; Coat the flame retardant coating 2 on compact conductor 1 surface; Coat the insulating barrier 3 on flame retardant coating 2 surfaces, be located at the water blocking layer 6 outside the insulating barrier 3, be located at the sheath 8 outside the water blocking layer 6;
Wherein compact conductor 1 presses moulding behind copper single line concentric stranding; Flame retardant coating 2 is made up of wrapped synthetic mica tape, glass fibre belt on compact conductor 1 successively; Insulating barrier 3 is made up of the crosslinked polyethylene that extrudes; Water blocking layer 6 is made up of the high density polyethylene (HDPE) that extrudes, and sheath 8 is extruded by halogen-free and low-smoke flame-retardant polyolefin and forms.
Also be provided with armour 7 between water blocking layer 6 and the sheath 8 in addition, this armour 7 is made up of wrapped steel band.
Water blocking layer 6 inboards also are provided with glass belt 5, and are filled in the mineral-filled material 4 between insulating barrier 3 and the glass belt 5, and glass belt 5 is made up of wrapped glass fibre belt outside mineral-filled material 4.
Also be provided with armour 7 between water blocking layer 6 and the sheath 8 in addition, this armour 7 is made up of wrapped steel band.
Embodiment two
As shown in Figure 2, the low-smoke non-halogen flame-retardant fire-resisting cable is used in the utility model urban track traffic, comprises five compact conductors 1; Coat the flame retardant coating 2 on compact conductor 1 surface; Coat the insulating barrier 3 on flame retardant coating 2 surfaces, be located at the water blocking layer 6 outside the insulating barrier 3, be located at the sheath 8 outside the water blocking layer 6;
Wherein compact conductor 1 presses moulding behind copper single line concentric stranding; Flame retardant coating 2 is made up of wrapped synthetic mica tape, glass fibre belt on compact conductor 1 successively; Insulating barrier 3 is made up of the crosslinked polyethylene that extrudes; Water blocking layer 6 is made up of the high density polyethylene (HDPE) that extrudes, and sheath 8 is extruded by halogen-free and low-smoke flame-retardant polyolefin and forms.
Water blocking layer 6 inboards also are provided with glass belt 5, and are filled in the mineral-filled material 4 between insulating barrier 3 and insulating barrier 3, insulating barrier 3 and the glass belt 5, and glass belt 5 is made up of wrapped glass fibre belt outside mineral-filled material 4.
Embodiment three
As shown in Figure 2, the low-smoke non-halogen flame-retardant fire-resisting cable is used in the utility model urban track traffic, comprises three compact conductors 1; Coat the flame retardant coating 2 on compact conductor 1 surface; Coat the insulating barrier 3 on flame retardant coating 2 surfaces, be located at the water blocking layer 6 outside the insulating barrier 3, be located at the sheath 8 outside the water blocking layer 6;
Wherein compact conductor 1 is by the stranded compact conductor of processing 1 that presses of copper single line; Flame retardant coating 2 is made up of wrapped synthetic mica tape, glass fibre belt on compact conductor 1 successively; Insulating barrier 3 is made up of the crosslinked polyethylene that extrudes; Water blocking layer 6 is made up of the high density polyethylene (HDPE) that extrudes, and sheath 8 is extruded by halogen-free and low-smoke flame-retardant polyolefin and forms.
Water blocking layer 6 inboards also are provided with glass belt 5, and are filled in the mineral-filled material 4 between insulating barrier 3 and insulating barrier 3, insulating barrier 3 and the glass belt 5, and glass belt 5 is made up of wrapped glass fibre belt outside mineral-filled material 4.
Also be provided with armour 7 between water blocking layer 6 and the sheath 8 in addition, this armour 7 is made up of wrapped steel band.
During making, earlier stranded and press at the enterprising column conductor of fork winch, make activity coefficient >=85% of conductor.Wrapped successively synthetic mica tape and glass fibre belt on the compact conductor 1, and then extruded insulation.Extruding when crosslinked polyetylene insulated; Adopt two step cross-linking methods to carry out crosslinked to insulating barrier 3; Crosslinked polyetylene insulated layer 3 through two step cross-linking methods obtain not only has excellent electric performance, temperature difference resistance, chemical resistance, and has longer useful life.
The fire resistance of the utility model reaches the requirement of GA 306-2007 regulation category-A, and fire resistance reaches the requirement of GB 19666-2005 regulation category-A.
For a person skilled in the art; Under the prerequisite that does not break away from the utility model structure; Can also make some distortion and improvement; Select asbestos cord for use like mineral-filled material 4, these also should be regarded as the protection range of the utility model, and these can not influence effect and practical applicability that the utility model is implemented.

Claims (3)

1. the low-smoke non-halogen flame-retardant fire-resisting cable is used in urban track traffic; It is characterized in that: comprise the compact conductor that is at least two, coat the flame retardant coating on compact conductor surface, coat the insulating barrier on flame retardant coating surface; Be located at the outer water blocking layer of insulating barrier, be located at the outer sheath of water blocking layer;
Wherein compact conductor presses moulding after by copper single line concentric stranding; Flame retardant coating is made up of wrapped synthetic mica tape, glass fibre belt on compact conductor successively; Insulating barrier is made up of the crosslinked polyethylene that extrudes; Water blocking layer is made up of the high density polyethylene (HDPE) that extrudes, and sheath is extruded by halogen-free and low-smoke flame-retardant polyolefin and forms.
2. the low-smoke non-halogen flame-retardant fire-resisting cable is used in urban track traffic according to claim 1; It is characterized in that: also comprise and be located at the inboard glass belt of water blocking layer in addition; And be filled in the mineral-filled material between insulating barrier and insulating barrier, insulating barrier and the glass belt, and the glass belt is made up of wrapped glass fibre belt outside mineral-filled material.
3. the low-smoke non-halogen flame-retardant fire-resisting cable is used in urban track traffic according to claim 1 or claim 2, it is characterized in that: also comprise the armour of being located between water blocking layer and the sheath, this armour is made up of wrapped steel band.
CN201120273683XU 2011-07-29 2011-07-29 Low-smoke halogen-free flame retardant fireproof cable used in urban railway system Expired - Fee Related CN202171970U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201120273683XU CN202171970U (en) 2011-07-29 2011-07-29 Low-smoke halogen-free flame retardant fireproof cable used in urban railway system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201120273683XU CN202171970U (en) 2011-07-29 2011-07-29 Low-smoke halogen-free flame retardant fireproof cable used in urban railway system

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CN202171970U true CN202171970U (en) 2012-03-21

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130180755A1 (en) * 2011-12-20 2013-07-18 Ls Cable & System Ltd. Electric cable for nuclear power plant easy to monitor condition and fabrication method thereof
CN103646714A (en) * 2013-11-29 2014-03-19 四川鑫电电缆有限公司 A medium-voltage fiber composite cable
CN103871656A (en) * 2014-03-26 2014-06-18 江苏荣宜电缆有限公司 Novel insulating fire-proof power cable
CN104252905A (en) * 2013-06-29 2014-12-31 沈阳岳阳电缆有限公司 Flame-retardant, flexible, fireproof and environment-friendly low-voltage power cable
CN106856108A (en) * 2015-12-09 2017-06-16 无锡市华美电缆有限公司 A kind of fire-fighting system low smoke, zero halogen cable

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130180755A1 (en) * 2011-12-20 2013-07-18 Ls Cable & System Ltd. Electric cable for nuclear power plant easy to monitor condition and fabrication method thereof
CN104252905A (en) * 2013-06-29 2014-12-31 沈阳岳阳电缆有限公司 Flame-retardant, flexible, fireproof and environment-friendly low-voltage power cable
CN103646714A (en) * 2013-11-29 2014-03-19 四川鑫电电缆有限公司 A medium-voltage fiber composite cable
CN103871656A (en) * 2014-03-26 2014-06-18 江苏荣宜电缆有限公司 Novel insulating fire-proof power cable
CN106856108A (en) * 2015-12-09 2017-06-16 无锡市华美电缆有限公司 A kind of fire-fighting system low smoke, zero halogen cable

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120321

Termination date: 20150729

EXPY Termination of patent right or utility model