CN201174276Y - Environment protection and security type fire resistant power cable - Google Patents
Environment protection and security type fire resistant power cable Download PDFInfo
- Publication number
- CN201174276Y CN201174276Y CNU200820055692XU CN200820055692U CN201174276Y CN 201174276 Y CN201174276 Y CN 201174276Y CN U200820055692X U CNU200820055692X U CN U200820055692XU CN 200820055692 U CN200820055692 U CN 200820055692U CN 201174276 Y CN201174276 Y CN 201174276Y
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Abstract
The utility model relates to an environment-friendly safety fireproof power cable, which is characterized in that a cable core consists of a conductive core, a fireproof layer and an insulating layer; the fireproof layer is coated on the conductive core; the insulating layer is arranged outside the fireproof layer; a cable outer layer consists of a semiconductive waterstop zone, an inner covering, a copper wire-copper strip composite shielding layer, a semiconductive waterstop buffer zone, a piece of aluminum foil and an expansion halogen-free antiflaming protective layer from inside to outside; and the number of the cable core inside the cable outer layer is more than one, and can be three, four or five. The environment-friendly safety fireproof power cable has the advantages that due to adopting the structure, the power cable increases fireproof and safety effects, and does not spread, burn and generate harmful gases such as hydrogen halide; meanwhile, the power cable also has a shielding system used for short circuit protection, thereby meeting the design requirements of an environment-friendly safety cable.
Description
Technical field
The utility model relates to, particularly in the automatic safe fire-fighting system and emergency power supply system in some skyscrapers, oil, mine, metallurgy, boats and ships, power station, subway, tunnel etc., as the power cable of electric energy transmitting.
Background technology
At present, the high occasions of fire safety condition such as domestic skyscraper, oil, mine, metallurgy, boats and ships, power station, subway, tunnel, employed cable insulation, restrictive coating mostly adopt the insulating material of Halogen.In a single day fire spreads, and not only can produce a large amount of dense smoke, and can produce the very strong hydrogen halide of corrosivity with " secondary disaster ", jeopardizes people's life, harm equipment and contaminated environment.Along with the high speed development of World Economics and World Environment Organization to requirement on environmental protection, suddenly wait to develop the environmental type safety cable to satisfy the needs of human kind sustainable development, this is the development trend of countries in the world, also is the global people's common heartfelt wishes.
Summary of the invention
The purpose of this utility model is that a kind of fire prevention, waterproof, nontoxic, environmental protection, safe will be provided, be suitable for still keeping under the specific disaster scenario security personnel of energising, disaster relief power supply and fire extinguishing, report to the police, illumination, the employed low smoke and zero halogen of emergency power supply of communication etc., non-toxic and non-pollution green safety cable---environmental protection and safety type fireproof power cable.The utility model design environmental protection and safety type fireproof power cable; comprise cable inner core, cable outer layer; it is characterized in that: the cable inner core is made up of conductor wire core, flame retardant coating, insulating barrier; flame retardant coating is wrapped on conductor wire core; be insulating barrier outside flame retardant coating, cable outer layer is made up of block water buffer strip, aluminium foil, halogen-free intumescent flame-retardant protective layer of semiconductive waterstop, inner covering, copper wire copper strips combination screen, semiconductive from inside to outside according to this.Cable inner core in the cable outer layer can have more than one.Cable inner core in the cable outer layer has three or four or five.Insulating barrier is formed by three-layer co-extruded, and internal layer is the semiconductive conductor shield, and skin is the semiconductive insulation screen, and the centre is crosslinked polyetylene insulated layer, and three layers by the extrusion modling of low smoke and zero halogen special insulation material.Conductor wire core is well-regulated by the identical soft round copper wire of some diameters, press concentric type, and each level forms according to different direction strand systems in succession.Flame retardant coating constitutes for the high-quality mica tape.Copper wire copper strips combination screen is formed by one deck copper strips is wrapped outside one deck copper wire.The utility model has the advantages that owing to adopted said structure, thereby improved fire prevention, safe effect.Can not spread, burn and produce the hydrogen halides pernicious gas, also have the shielding harness of short-circuit protection simultaneously, reach the designing requirement of environmental type safety cable.
Description of drawings
Fig. 1 is the structure cutaway view with three cable inner cores of the present utility model,
Fig. 2 is the structure cutaway view with four cable inner cores of the present utility model,
Below in conjunction with accompanying drawing and example the utility model is elaborated.
Embodiment
Comprise cable inner core 1, cable outer layer 2 among the figure; it is characterized in that: cable inner core 1 is made up of conductor wire core 3, flame retardant coating 4, insulating barrier 5; flame retardant coating 4 is wrapped on conductor wire core 3; be insulating barrier 5 outside flame retardant coating 4, cable outer layer 2 is made up of block water buffer strip 9, aluminium foil 10, halogen-free intumescent flame-retardant protective layer 11 of semiconductive waterstop 6, inner covering 7, copper wire copper strips combination screen 8, semiconductive from inside to outside according to this.Cable inner core 1 in the cable outer layer 2 can have more than one.Cable inner core 1 in the cable outer layer 2 has three or four or five.Insulating barrier 5 is formed by three-layer co-extruded, and internal layer is a semiconductive conductor shield 12, and skin is a semiconductive insulation screen 14, and the centre is that 13, three layers on crosslinked polyetylene insulated layer is by the extrusion modling of low smoke and zero halogen special insulation material.Conductor wire core 3 is well-regulated by the identical soft round copper wire of some diameters, press concentric type, and each level forms according to different direction strand systems in succession.Flame retardant coating 4 constitutes for the high-quality mica tape.Copper wire copper strips combination screen 8 is formed by one deck copper strips is wrapped outside one deck copper wire.
The technical solution of the utility model is finished like this, and the conductor wire core 3 of cable is the stranded conductor that is formed by concentric layer-stepping strand system by many soft garden copper single lines.Flame retardant coating 4 is made up of the refractory synthetic mica tape of high-quality, surround on the conductor wire core 3, insulating barrier 5 is a semiconductive conductor shield 12 for internal layer, skin is a semiconductive insulation screen 14, the centre be 13, three layers on crosslinked polyetylene insulated layer by the extrusion modling of low smoke and zero halogen special insulation material, be coated on the outside of flame retardant coating 4 successively, semiconductive waterstop 6 is overlapping wrapped in the outside of insulating barrier 5, and the inner covering 7 of low smoke and zero halogen is extruded in the outside.Copper wire copper strips combination screen 8 is by the thin outside around inner covering 7 of many soft round copper wires, and oppositely a wrapped copper strips is tightened and finished the semi-conductive buffer water-blocking band 9 wrapped outsides of making up screen 8 at the copper wire copper strips, a buffering resistance effect again.Again with the aluminium foil 10 wrapped or vertical outsides that wrap in semi-conductive buffer water-blocking band 9, outermost extrudes the halogen-free intumescent flame-retardant protective layer 11 that one deck expansion type low-smoke halogen-free flame-retardant polyolefin makes again and makes sheath, and this is the fire-resistant sheath of a kind of novel expansion type flame-retarding.Meeting fire can expand rapidly, has good heat insulation effect.
The sectional area of conductor wire core 3 of the present utility model is 4～500mm
2, geometry is round, is well-regulated by the identical soft round copper wire of some diameters, concentric type, and each level forms according to different direction strand systems in succession.Insulated wire cores can be single core, can be three cores, four-core also, and geometry is fixed, and stability is high, but very little to the curvature influence of cable.
Flame retardant coating 4 of the present utility model is wrapped the forming of high-quality mica tape with fire-resistant safety cable special use, and good fire resistant flame retardant effect is arranged, and still can keep good dielectric strength under ignition temperature.Insulating barrier 5 of the present utility model is formed by three layers, be three-layer co-extruded formation, internal layer is a semiconductive conductor shield 12, skin is a semiconductive insulation screen 14, the centre then is crosslinked polyetylene insulated layer 13, three layers by the extrusion modling of low smoke and zero halogen special insulation material, by crosslinked special processing, with poly linear molecule structural transformation is solid netted molecular structure, improved electric property, physical property, mechanical performance and other properties of product greatly, not only high temperature resistant and have and do not prolong combustion and can not produce the characteristics of hydrogen halide.Cable just can not discharge pernicious gas and smog, unlikely causing " secondary disaster " when burning like this.
Copper wire copper strips of the present utility model combination screen 8 is by one deck copper wire, the wrapped composition of one deck copper strips, and screen cross section and master core cross section dispose according to a certain percentage, by 16,25,35, the 50...... plurality of specifications.The shielded type cable of this structure can anti-electromagnetic induction, and imperfect earth and power line conducted interference reduce inductance, prevents characteristics such as induced electromotive force is excessive.Copper wire copper strips combination screen 8 had both played and had suppressed the externally effect of emission of electromagnetic wave, can be used as the passage of short circuit current again, can play the protective effect of neutral core.
The double effects that semiconductive waterstop 6 of the present utility model has semiconductive, blocks water, overlapping wrapped outside the insulation shield layer, as waterproof construction.Select the waterstop of 0.5 millimeters thick for use, after it meets water, can be expanded to 12 millimeters height rapidly, thereby reach good block-water effect.Have semiconductive, the semi-conductive buffer water-blocking band of the triple function that cushions, blocks water, overlapping wrappedly have the same principle that blocks water outside copper wire copper strips combination screen 8, also have the effect of buffering.Behind this band water-swellable, that copper wire copper strips combination screen 8 can be blocked up is watertight.Effectively prevent the intrusion of moisture, moisture.
The utility model adopts aluminium foil 10 wrapped or vertical bags, the photothermal reflectance rate of aluminium foil 10 greater than 90% and the novel fire-resistant sheath of expansion type flame-retarding cooperate, slowed down hot conduction.Be higher than under 1000 ℃ the flame temperature condition, through behind the 90min, temperature inside is no more than 450 ℃.And adopt the fire-resistant sheath of common low-smoke non-halogen flame-retardant
The structure of aluminium foil is being higher than under 1000 ℃ the flame temperature condition, and through behind the 20min, temperature inside surpasses 600 ℃, aluminium foil 10 beginning fusions.
The utility model uses halogen-free intumescent flame-retardant protective layer 11; adopting the expansion type flame-retarding technology is ignition-proof element with nitrogen; under the environment of flame; the sheath material of being made up of acid source (dehydrating agent), carbon source (carbon forming agent) and source of the gas (blowing agent) three parts expands rapidly; the surface forms fine and close porous carbon froth bed; securely attached on the cable, play well heat insulation, oxygen barrier, press down cigarette, and can prevent to produce molten effect.Fire-resistant oversheath has good flame-retardant smoke inhibition and the function of putting out certainly, low cigarette, Halogen, fire-retardant and have high elongation at break (＞350%), and easy to process.The flame-retardant effect of halogen-free intumescent flame-retardant protective layer 11 mainly is by the low heat conduction of the heat insulation-foaming structure of expansion charcoal layer with to thermal-radiating reflection, trapping effect, limited to lower floor's polymer oxygen supply and suppress flammable degraded gas emitting and preventing effectively melt and dissolved drippage behavior that polymer combustion produces to reach the effect of flame-retardant.
Claims (7)
1, environmental protection and safety type fireproof power cable; comprise cable inner core, cable outer layer; it is characterized in that: the cable inner core is made up of conductor wire core, flame retardant coating, insulating barrier; flame retardant coating is wrapped on conductor wire core; be screen outside flame retardant coating, cable outer layer is made up of block water buffer strip, aluminium foil, halogen-free intumescent flame-retardant protective layer of semiconductive waterstop, inner covering, copper wire copper strips combination screen, semiconductive from inside to outside according to this.
2, by the described environmental protection and safety type fireproof power cable of claim 1, it is characterized in that: the cable inner core in the cable outer layer can have more than one.
3, by the described environmental protection and safety type fireproof power cable of claim 1, it is characterized in that: the cable inner core in the cable outer layer has three or four or five.
4, by the described environmental protection and safety type fireproof power cable of claim 1, it is characterized in that: insulating barrier is formed by three-layer co-extruded, internal layer is the semiconductive conductor shield, skin is the semiconductive insulation screen, the centre is crosslinked polyetylene insulated layer, and three layers by the extrusion modling of low smoke and zero halogen special insulation material.
5, by the described environmental protection and safety type fireproof power cable of claim 1, it is characterized in that: conductor wire core is well-regulated by the identical soft round copper wire of some diameters, press concentric type, and each level is made according to different direction strands and formed in succession.
6, by the described environmental protection and safety type fireproof power cable of claim 1, it is characterized in that: flame retardant coating constitutes for the high-quality mica tape.
7, by the described environmental protection and safety type fireproof power cable of claim 1, it is characterized in that: copper wire copper strips combination screen is formed by one deck copper strips is wrapped outside one deck copper wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820055692XU CN201174276Y (en) | 2008-02-25 | 2008-02-25 | Environment protection and security type fire resistant power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820055692XU CN201174276Y (en) | 2008-02-25 | 2008-02-25 | Environment protection and security type fire resistant power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201174276Y true CN201174276Y (en) | 2008-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU200820055692XU Expired - Fee Related CN201174276Y (en) | 2008-02-25 | 2008-02-25 | Environment protection and security type fire resistant power cable |
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| CN (1) | CN201174276Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101847461A (en) * | 2010-04-20 | 2010-09-29 | 上海索谷电缆集团有限公司 | Silicone rubber insulating fire-resisting flexible cable |
| CN101872656A (en) * | 2010-04-20 | 2010-10-27 | 上海索谷电缆集团有限公司 | Fluorine plastic insulated fireproof control cable |
| CN102184761A (en) * | 2010-05-28 | 2011-09-14 | 湖南金杯电缆有限公司 | Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable |
| CN102364601A (en) * | 2011-11-09 | 2012-02-29 | 江苏新远程电缆股份有限公司 | Anti-interference low-voltage cable for balance of plant (BoP) of nuclear power station |
| CN102637478A (en) * | 2012-05-04 | 2012-08-15 | 无锡市恒汇电缆有限公司 | Fire-resistant inflaming retarding high-voltage cable |
| CN102789835A (en) * | 2011-08-12 | 2012-11-21 | 上海特种电线电缆（集团）有限公司 | Environment-friendly safe waterproof fireproof cable |
| CN102956321A (en) * | 2012-11-28 | 2013-03-06 | 江苏永鼎股份有限公司 | Novel high-flame-retardancy optical fiber composite low-voltage cable |
| CN103779020A (en) * | 2014-01-20 | 2014-05-07 | 常州船用电缆有限责任公司 | Composite cable used for offshore oil platform |
| CN103779019A (en) * | 2014-01-17 | 2014-05-07 | 常州船用电缆有限责任公司 | Ship and offshore oil platform power cable |
| CN103871662A (en) * | 2014-02-26 | 2014-06-18 | 安徽渡江电缆集团有限公司 | Environment-friendly and safe fireproof cable |
| CN104867577A (en) * | 2014-02-20 | 2015-08-26 | 安徽华电线缆集团有限公司 | Novel environmental protection safety type fireproof cable |
-
2008
- 2008-02-25 CN CNU200820055692XU patent/CN201174276Y/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872656A (en) * | 2010-04-20 | 2010-10-27 | 上海索谷电缆集团有限公司 | Fluorine plastic insulated fireproof control cable |
| CN101847461A (en) * | 2010-04-20 | 2010-09-29 | 上海索谷电缆集团有限公司 | Silicone rubber insulating fire-resisting flexible cable |
| CN102184761B (en) * | 2010-05-28 | 2014-07-09 | 湖南金杯电缆有限公司 | Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable |
| CN102184761A (en) * | 2010-05-28 | 2011-09-14 | 湖南金杯电缆有限公司 | Mouse-proof, termite-proof, high-antiflaming, fireproof and environment-friendly concentric conductor cable |
| CN102789835A (en) * | 2011-08-12 | 2012-11-21 | 上海特种电线电缆（集团）有限公司 | Environment-friendly safe waterproof fireproof cable |
| CN102364601A (en) * | 2011-11-09 | 2012-02-29 | 江苏新远程电缆股份有限公司 | Anti-interference low-voltage cable for balance of plant (BoP) of nuclear power station |
| CN102637478A (en) * | 2012-05-04 | 2012-08-15 | 无锡市恒汇电缆有限公司 | Fire-resistant inflaming retarding high-voltage cable |
| CN102956321A (en) * | 2012-11-28 | 2013-03-06 | 江苏永鼎股份有限公司 | Novel high-flame-retardancy optical fiber composite low-voltage cable |
| CN102956321B (en) * | 2012-11-28 | 2016-03-02 | 江苏永鼎股份有限公司 | A kind of Novel high-flame-retardancoptical optical fiber composite low-voltage cable |
| CN103779019A (en) * | 2014-01-17 | 2014-05-07 | 常州船用电缆有限责任公司 | Ship and offshore oil platform power cable |
| CN103779020A (en) * | 2014-01-20 | 2014-05-07 | 常州船用电缆有限责任公司 | Composite cable used for offshore oil platform |
| CN103779020B (en) * | 2014-01-20 | 2016-01-20 | 常州船用电缆有限责任公司 | Offshore oil platform composite cable |
| CN104867577A (en) * | 2014-02-20 | 2015-08-26 | 安徽华电线缆集团有限公司 | Novel environmental protection safety type fireproof cable |
| CN103871662A (en) * | 2014-02-26 | 2014-06-18 | 安徽渡江电缆集团有限公司 | Environment-friendly and safe fireproof cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081231 Termination date: 20160225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |