CN107221376A - A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting - Google Patents

A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting Download PDF

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Publication number
CN107221376A
CN107221376A CN201710483912.2A CN201710483912A CN107221376A CN 107221376 A CN107221376 A CN 107221376A CN 201710483912 A CN201710483912 A CN 201710483912A CN 107221376 A CN107221376 A CN 107221376A
Authority
CN
China
Prior art keywords
fire
alkali
cable
glass fiber
free glass
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710483912.2A
Other languages
Chinese (zh)
Inventor
陶天宝
陈国林
吴中东
王敏
李业胜
李世胜
鲁男子
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.)
Anhui Huatong Cable Group Co Ltd
Original Assignee
Anhui Huatong Cable Group Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Huatong Cable Group Co Ltd filed Critical Anhui Huatong Cable Group Co Ltd
Priority to CN201710483912.2A priority Critical patent/CN107221376A/en
Publication of CN107221376A publication Critical patent/CN107221376A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29Protection against damage caused by extremes of temperature or by flame
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/02Disposition of insulation
    • H01B7/0275Disposition of insulation comprising one or more extruded layers of insulation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/42Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction
    • H01B7/421Insulated conductors or cables characterised by their form with arrangements for heat dissipation or conduction for heat dissipation
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00Power cables

Abstract

The invention discloses a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting, the cable includes copper core stranded conductor successively from inside to outside, insulating barrier, alkali-free glass fiber yarn packed layer, lapping layer and oversheath, product insulating barrier and oversheath use ceramic fire-resistant polyolefin material, in the case of aerobic or anaerobic more than 300 DEG C, adamantine ceramic-like inorganic matter housing supporter can be sintered into, combustion is not prolonged, do not drip, flue gas toxity reaches ZA1 grades, secondary injury will not be caused to human body, smoke density light transmittance is up to more than 75-80%, Halogen, it is nontoxic, it is tasteless, heavy metal free, it is without phosphorus, nitrogen, with preferable fire resisting and environmental protection characteristic, excellent insulating properties can be kept simultaneously, the unimpeded of electric power is kept when running into fire, it is easy to the development of evacuating personnel and fire-fighting work.

Description

A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting
Technical field
The present invention relates to power cable field, and in particular to a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting.
Background technology
With the rapid development of the national economy, power cable is applied to industry, the various aspects of power system.Railway station building The public place concentrated as the stream of people, the guarantee to personal security requires especially high, the cable that present station is used predominantly oxygen Change magnesium mineral insulated cable, the valuable product, complex manufacturing, and it is big to lay difficulty.Also part uses flexible anti- Thermoelectricity cable, the fire-resistant isinglass belt moisture absorption that product is used is strong, storage time 3-6 months, and decreasing insulating is rapid after making moist, Drying and processing is also needed after wrapped, and embrittlement is easy to fall off, and the mica powder of wrapped production scene is flown upward, and is easily sucked by human body, to strong Health has an impact.Therefore, under current environment, a kind of Safety and Environmental Protection of invention is high, production cost is low, manufacturing process is good and fire resisting The railway station building cable of excellent seems particularly urgent.
The content of the invention
It is an object of the invention to provide a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting, Safety and Environmental Protection It is high, production cost is low, manufacturing process is good and fire-resistance property is superior, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme:
A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting, it includes cable body, and the cable body is from inside to outside Include copper core stranded conductor, insulating barrier, alkali-free glass fiber yarn packed layer, fire-retardant inner sheath, ceramic composite band successively wrapped Layer, oversheath;The copper core stranded conductor is formed by multiply tinned copper wire gluing;The copper core stranded conductor is provided with three groups, Insulating barrier is extruded with outside every group of copper core stranded conductor;Fire-retardant inner sheath is provided with outside the insulating barrier;The insulating barrier with it is fire-retardant Space between inner sheath is provided with alkali-free glass fiber yarn packed layer;Extruded outside the fire-retardant inner sheath one layer of ceramic composite band around Covering;Oversheath is extruded outside the ceramic composite band lapping layer.
It is preferred that, the insulating barrier and oversheath use what ceramic fire-resistant polyolefin material was made.
It is preferred that, the section of the alkali-free glass fiber yarn packing material of the alkali-free glass fiber yarn packed layer is cylinder, is filled into There is space after cable between every yarn, form passage.
It is preferred that, the packing material alkali-free glass fiber yarn of the alkali-free glass fiber yarn packed layer is made of earth silicon material 's.
Compared with prior art, the beneficial effects of the invention are as follows:
Insulating barrier and oversheath of the present invention use ceramic fire-resistant polyolefin material, the aerobic or nothing more than 300 DEG C In the case of oxygen, adamantine ceramic-like inorganic matter housing supporter can be sintered into, do not prolong combustion, do not drip, flue gas toxity reaches To ZA1 grades, secondary injury will not be caused to human body, smoke density light transmittance is up to more than 75-80%, Halogen, nontoxic, tasteless, nothing Heavy metal, without phosphorus, nitrogen, with preferable fire resisting and environmental protection characteristic, while excellent insulating properties can be kept, when running into fire The unimpeded of electric power is kept, is easy to the development of evacuating personnel and fire-fighting work;Around packaging material ceramic composite band and ceramic fire resisting Polyolefine material is the same, starts to be hardened under 300 DEG C of temperatures above and forms the housing of ceramic-like, and cable insulation and sheath material Material constitutes solid flame retardant coating together, it is ensured that the fire resistance of cable.
Brief description of the drawings
Fig. 1 is cross-sectional structure schematic diagram of the present invention:
Wherein:1st, cable body;2nd, copper core stranded conductor;3rd, insulating barrier;4th, alkali-free glass fiber yarn packed layer;5th, fire-retardant inner sheath; 6th, ceramic composite band lapping layer;7th, oversheath.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made Embodiment, belongs to the scope of protection of the invention.
Referring to Fig. 1, the present invention provides a kind of technical scheme:
A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting, it includes cable body 1, and the cable body 2 includes copper Core stranded conductor 2, insulating barrier 3, alkali-free glass fiber yarn packed layer 4, fire-retardant inner sheath 5, ceramic composite band lapping layer 6 and oversheath 7;The copper core stranded conductor 2 is formed by multiply tinned copper wire gluing, is added the bending radius of cable when in use, is easy to More occasions are installed;The copper core stranded conductor 2 is provided with outside three groups, every group of copper core stranded conductor 2 and is extruded with insulation Layer 3;Fire-retardant inner sheath 5 is provided with outside the insulating barrier 3;Space between the insulating barrier 3 and fire-retardant inner sheath 5 is provided with nothing Alkali glass fibre yarn packed layer 5, the section of the alkali-free glass fiber yarn inserts of alkali-free glass fiber yarn packed layer 5 is cylinder, is filled after stranding There is space between every yarn, form passage, this passage can play good thermolysis, be produced when cable is normally run Heat can in itself be radiated by these various passages and alkali-free glass fiber yarn;Exterior conductive is come in during fire Heat can also be conducted by these passages and glass fibre yarn;One layer of ceramic composite band is extruded outside the fire-retardant inner sheath 5 Lapping layer 6;Oversheath 7 is extruded outside the ceramic composite band lapping layer 6.
Ceramic fire-resistant polyolefin insulating barrier 3 and the material of ceramic fire-resistant polyolefin oversheath 7 that the cable is selected, In the case of more than 300 DEG C of aerobic or anaerobic, adamantine ceramic-like inorganic matter housing supporter is sintered into, the material is not Water suction, nonhygroscopic, 22~25KV/mm of dielectric strength under normal temperature, specific insulation are hard after ablation up to 2 × 1014 Ω M Armour body section can generate the ceramic inorganic thing supporter of dense uniform, C-C chains are burnt till the effusion of CO2 gases, the remaining quantity of carbon Very low, so the dielectric strength of armour body hard after ceramic is more than more than 35KV/mm, specific insulation is more than 2 × 1018 Still there are good insulating properties after Ω M, water spray;In the case of having flame, a nonflame at 300-2000 DEG C, do not melt, do not drip, no Come off, adamantine ceramic-like armour body supporter can be burnt till, temperature is higher, the ceramic-like armour body after time longer burning is harder Firmly, residue is inorganic matter, and residual volume is up to 75-85%, and the hard ceramic body supporter of ceramic-like dense uniform can be played very Fire insulation well, effect of heat insulation, do not fall out after spray, vibrations;Do not prolong combustion when running into fire, do not drip, flue gas toxity reaches ZA1 grades, secondary injury will not be caused to human body;Smoke density light transmittance is up to more than 75-80%;Halogen, it is nontoxic, tasteless, without weight Metal, without phosphorus, nitrogen, more than the requirement of ROSH standards, with preferable environmental protection characteristic.
The main component of the alkali-free glass fiber yarn packing material for the selection that the cable alkali-free glass fiber yarn packed layer 4 is selected is dioxy SiClx, is a kind of highly stable inorganic material, nontoxic, and heat resisting temperature, will not after being heated up to more than 650-1000 DEG C Produce harmful flue gas;The section of alkali-free glass fiber yarn is cylinder, and filling has space between every yarn after stranding, forms logical Road, this passage can play good thermolysis, and the heat produced when cable is normally run can be various by these Passage and alkali-free glass fiber yarn radiated in itself;The heat that exterior conductive is come in during fire can also by these passages and Glass fibre yarn is conducted.
The cable ceramic composite band lapping layer 6 use around packaging material ceramic composite band and ceramic fire-resistant polyolefin Material is the same, starts to be hardened under 300 DEG C of temperatures above and forms the housing of ceramic-like, the insulation with cable is together with sheath material The solid flame retardant coating of composition, it is ensured that the fire resistance of cable.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (4)

1. a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting, it includes cable body, it is characterised in that:The cable It is multiple that body includes copper core stranded conductor, insulating barrier, alkali-free glass fiber yarn packed layer, fire-retardant inner sheath, ceramic successively from inside to outside Crossed belt lapping layer and oversheath;The copper core stranded conductor is formed by multiply tinned copper wire gluing;The copper core stranded conductor is set It is equipped with outside three groups, every group of copper core stranded conductor and is extruded with insulating barrier;Fire-retardant inner sheath is provided with outside the insulating barrier;The insulation Space between layer and fire-retardant inner sheath is provided with alkali-free glass fiber yarn packed layer;One layer of ceramic is extruded outside the fire-retardant inner sheath Composite band lapping layer;Oversheath is extruded outside the ceramic composite band lapping layer.
2. a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting according to claim 1, it is characterised in that:Institute State insulating barrier and oversheath uses what ceramic fire-resistant polyolefin material was made.
3. a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting according to claim 1, it is characterised in that:Institute The section for stating the alkali-free glass fiber yarn packing material of alkali-free glass fiber yarn packed layer is cylinder, and fill after stranding has between every yarn Space, forms passage.
4. a kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting according to claim 1, it is characterised in that:Institute The packing material alkali-free glass fiber yarn for stating alkali-free glass fiber yarn packed layer is that earth silicon material is made.
CN201710483912.2A 2017-06-23 2017-06-23 A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting Pending CN107221376A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710483912.2A CN107221376A (en) 2017-06-23 2017-06-23 A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710483912.2A CN107221376A (en) 2017-06-23 2017-06-23 A kind of environment-friendly type railway station building low-voltage-powered cable of fire resisting

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8417496D0 (en) * 1984-07-09 1984-08-15 Pirelli General Plc Flexible electric cables
CN201477975U (en) * 2009-08-26 2010-05-19 安徽华峰电缆集团有限公司 Environment-friendly silicon rubber insulation power cable used on ship
CN204010772U (en) * 2014-04-29 2014-12-10 新亚特电缆股份有限公司 Rated voltage 450/750V mineral-insulated fireproof type power cable
CN204651066U (en) * 2015-03-30 2015-09-16 中国核电工程有限公司 A kind of lv power cable
CN105348627A (en) * 2015-11-13 2016-02-24 苏州希普拉斯新材料有限公司 Ceramifying polyolefin fireproof cable material
CN205282143U (en) * 2016-01-18 2016-06-01 明达线缆集团有限公司 Fire -retardant fireproof cable of flexible inorganic mineral insulation low smoke and zero halogen
CN205487526U (en) * 2016-03-30 2016-08-17 安徽华通电缆集团有限公司 Fire -resistant railway tunnel of environment -friendly power cable that throws light on
CN105976909A (en) * 2016-03-30 2016-09-28 安徽华通电缆集团有限公司 Carbon fiber enhanced high-tensile-strength cold-resistant torsion-resistant flexible cable for wind power generation
CN205943533U (en) * 2016-08-30 2017-02-08 新亚特电缆股份有限公司 Low -voltage power cable for nuclear power plant
CN205984375U (en) * 2016-07-20 2017-02-22 宁波东方电缆股份有限公司 Fireproof cable
CN207097486U (en) * 2017-06-23 2018-03-13 安徽华通电缆集团有限公司 A kind of low-voltage-powered cable of environment-friendly type railway station building fire resisting

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8417496D0 (en) * 1984-07-09 1984-08-15 Pirelli General Plc Flexible electric cables
CN201477975U (en) * 2009-08-26 2010-05-19 安徽华峰电缆集团有限公司 Environment-friendly silicon rubber insulation power cable used on ship
CN204010772U (en) * 2014-04-29 2014-12-10 新亚特电缆股份有限公司 Rated voltage 450/750V mineral-insulated fireproof type power cable
CN204651066U (en) * 2015-03-30 2015-09-16 中国核电工程有限公司 A kind of lv power cable
CN105348627A (en) * 2015-11-13 2016-02-24 苏州希普拉斯新材料有限公司 Ceramifying polyolefin fireproof cable material
CN205282143U (en) * 2016-01-18 2016-06-01 明达线缆集团有限公司 Fire -retardant fireproof cable of flexible inorganic mineral insulation low smoke and zero halogen
CN205487526U (en) * 2016-03-30 2016-08-17 安徽华通电缆集团有限公司 Fire -resistant railway tunnel of environment -friendly power cable that throws light on
CN105976909A (en) * 2016-03-30 2016-09-28 安徽华通电缆集团有限公司 Carbon fiber enhanced high-tensile-strength cold-resistant torsion-resistant flexible cable for wind power generation
CN205984375U (en) * 2016-07-20 2017-02-22 宁波东方电缆股份有限公司 Fireproof cable
CN205943533U (en) * 2016-08-30 2017-02-08 新亚特电缆股份有限公司 Low -voltage power cable for nuclear power plant
CN207097486U (en) * 2017-06-23 2018-03-13 安徽华通电缆集团有限公司 A kind of low-voltage-powered cable of environment-friendly type railway station building fire resisting

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Application publication date: 20170929

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