CN201877143U - Fire-resistant cable - Google Patents

Fire-resistant cable Download PDF

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Publication number
CN201877143U
CN201877143U CN2010202136130U CN201020213613U CN201877143U CN 201877143 U CN201877143 U CN 201877143U CN 2010202136130 U CN2010202136130 U CN 2010202136130U CN 201020213613 U CN201020213613 U CN 201020213613U CN 201877143 U CN201877143 U CN 201877143U
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Prior art keywords
fire
armouring
layer
metal
cable
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Expired - Fee Related
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CN2010202136130U
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Chinese (zh)
Inventor
林泽民
余乐华
万有梅
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Anhui Joy Sense Cable Co Ltd
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Priority to CN2010202136130U priority Critical patent/CN201877143U/en
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Publication of CN201877143U publication Critical patent/CN201877143U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model belongs to the field of electric wire. A fire-resistant cable comprises at least one insulated cable core, wherein the insulated cable core comprises a conductor, a mica tape and an insulation layer; the fire-resistant cable also comprises a reeling layer, an inner jacket, a metal armor layer and an outer jacket which are arranged around the fire-resistant cable from inside to outside; the insulation material of the fire-resistant cable is inflaming retarding cross-linked polyethylene; the jacket is made of low smoke zero halogen inflaming retarding materials; and the metal armor layer has an interlocked armor structure. The cable with such a structure has excellent inflaming retarding and fire-resistant properties, can bear flame temperature at 800 DEG C for a long time, achieves low smoke zero halogen effect, has high safety, and has low cost and excellent properties compared with the traditional low smoke zero halogen copper cable.

Description

Fire-resisting cable
Technical field
The utility model belongs to the electric wire field, is specifically related to fire-resisting cable.
Background technology
Along with quickening of urbanization process, the fast development of electric power transmission and communication makes people more and more higher to the requirement of electric wire, not only requires cable to have the characteristics of safety and environmental protection, and has lower cost.
The employing that traditional cable is more the structure flame resistant not of thermal insulation difference.Therefore, when breaking out of fire, the not flame resistant baking of this class cable is difficult to isolated flame, so flame these protective layers that are easy to ablate, and makes cable directly be subjected to the calcination of flame, causes cable can not work because of short circuit.
People reach the fire-resistant purpose of low smoke and zero halogen in order to realize cable, need higher cost could prepare the low-smoke halogen-free cable with splendid fire resistance usually.
Summary of the invention
The desired purpose of the utility model provides good, the fire-resisting cable cheaply of a kind of fire resistance.
The utility model adopts following technical scheme:
A kind of fire-resisting cable, comprise at least one eradication edge core, the structure of described insulated wire cores is made of conductor and the mica tape and the insulating barrier that from inside to outside wrap up conductor successively, also comprises around insulated wire cores according to the lapping layer of from inside to outside arranging successively, inner sheath, metal armouring layer, oversheath.
In the technique scheme, insulating barrier adopts the flame-retardant crosslinking polyethylene material.Insulating barrier is flame-proof silicone hydride crosslinked, chemical crosslinking or IXPE material.Lapping layer is a fireproof glass silk fiber band.At least comprise that two thoroughly do away with the edge core, the gap between insulated wire cores is filled with the combustion-proof glass fiber rope.Be provided with inner sheath between lapping layer and the metal armouring layer, the code name that the selection of inner sheath material meets the GB/T12706-2008 requirement is ST 8Bittern-free flame-proof material.Described inner sheath material adopts low-smoke halide-free fireproof composite polyolefine material.The metal material that the metal armouring layer adopts is an aluminum or aluminum alloy.Before the used metal material armouring of metal armouring layer is banded structure, has certain width and thickness, before the used metal material armouring of metal armouring layer is banded structure, having certain width and thickness, is that 8.0~10.0mm, thickness are the metal tape of 0.35~0.45mm for external diameter before the armouring less than the employing width of 15.80mm; For external diameter before the armouring is that the employing width of 15.81mm~20.50mm is that 11.0~13.0mm, thickness are the metal tape of 0.46~0.6mm; The employing width that for external diameter before the armouring is 20.51mm~38.00mm is the metal tape of 0.61~0.75mm greater than 13.1~15.0mm, thickness; For external diameter before the armouring greater than the employing width of 38.00mm for being the metal tape of 0.76~0.9mm greater than 16.0mm, thickness.The structure of metal armouring layer is the self-locking sheathed structure, forms flange between armouring adjacent layer and the layer, can realize chain mutual button, and the tension that makes adjacent layer can bear 670N does not at least break away from easily, has the better seal effect.The profile of metal armouring layer is corrugated or wrinkle shape.The metal armouring layer is outer can to extrude one deck oversheath, and it is ST that sheath material adopts the code name that meets the GB/T12706-2008 requirement 8Bittern-free flame-proof material.Oversheath is selected low-smoke halide-free fireproof composite polyolefine material
The utility model obtains following technique effect:
1. the utility model adopts and be enclosed with mica tape around conductor thread core, mica tape is good isolated flame material, when being subjected to the flame calcination, can not burn, and can completely cut off flame, himself have insulation, heat insulation effect again, therefore when breaking out of fire, can increase the fire resistance of core effectively.The electric spark that it not only can effectively stop heart yearn to produce is outwards expanded, externally insulating barrier plays dual parts insulating barrier and flame retardant coating after by calcination, can guarantee that this construction of cable can keep insulation under the calcination of thermal-flame, thereby make the cable operate as normal.
2. the present invention is for the insulated wire cores that comprises more than two or two, in order to make the rounding property that keeps cable, slit between cable is filled, packing material adopts fire-resistant glass fibre gasket for packing, not only can play the fire-resistant effect of further enhancing, when breaking out of fire, can play the effect of many cores of insulation equally, be the second fire-resistant barrier.In addition, packing material has certain rigidity, the impact energy that therefore can effectively dissipate when withstanding shocks, the reliability of increase cable.
3. the utility model is at the armoured layer of metal sheathed structure of inner sheath; this sheathed structure adopts interlock type armouring mode; detain mutually by flange realization interlock type between adjacent armour; the armouring profile is wrinkle or corrugated; this armouring metal material adopts aluminum or aluminum alloy; when catching fire; because this armouring mode, have the better seal effect, can stop ignite sheath below the armour of outside flame; the aluminum or aluminum alloy material has conductive force preferably; make the very fast loss of heat, simultaneously because wave structure has heat sinking function preferably; guaranteeing the inner restrictive coating that conducts to that heat can not be very fast, is that cable is realized fire-retardant and fire-resistant good protection structure.Wave structure can also provide enough deformation spaces simultaneously, strengthens the impact resistance of cable.Constitute fire-resistant the 3rd cover barrier by inner sheath, metal armouring structure, completely cut off live from inside to outside from outside to inside propagation of flame.
4. the utility model also extrudes one deck halogen-free low-smoke flame retardant material as inner sheath in the lapping layer outside, in order to realize the better economic technique effect, adopts the low-smoke halogen-free polyolefin material.
5. the utility model cable outermost layer extrudes one deck oversheath, adopts and the same material of inner sheath, and it can effectively stop external flame to light cable, when playing enhancing cable intensity, also makes the more abominable place of the fire-fighting condition that applies to of cable.This restrictive coating plays fire-resistant preferably effect, and it has constituted the quadruplet barrier, can further stop the destruction of flame to cable.
6. the structure of the utility model metal armouring layer is the self-locking sheathed structure, forms flange between armouring adjacent layer and the layer, can realize chain mutual button, and the tension that makes adjacent layer can bear 670N does not at least break away from easily, has the better seal effect.
7. the utility model is because the selection and the structure Design of materials such as mica tape, flame-retardant crosslinking polyethylene insulated, fire-retardant twining package tape, low-smoke non-halogen flame-retardant inner sheath, the chain armour of metal, low-smoke non-halogen flame-retardant oversheath, the cable that manufactures thus has excellent fire-resistance property, can stand nearly 800 ℃ flame temperature for a long time, and can reach the effect of low smoke and zero halogen, has higher safety performance, more traditional low smoke and zero halogen copper cable cost is lower, and performance is more excellent.
Description of drawings
Fig. 1 does not have the low smoke and zero halogen of filling fire-resisting cable cross section structure schematic diagram for single core insulation core.
Fig. 2 is that three core insulation cores do not have the low smoke and zero halogen of filling fire-resisting cable cross section structure schematic diagram.
Fig. 3 does not have the low smoke and zero halogen of filling fire-resisting cable cross section structure schematic diagram for the four-core insulated wire cores.
Fig. 4 is that five core insulation cores do not have the low smoke and zero halogen of filling fire-resisting cable cross section structure schematic diagram.
Fig. 5 is three core insulation core low smoke and zero halogen fire-resisting cable cross section structure schematic diagrames.
Fig. 6 is a four-core insulated wire cores low smoke and zero halogen fire-resisting cable cross section structure schematic diagram.
Fig. 7 is five core insulation core low smoke and zero halogen fire-resisting cable cross section structure schematic diagrames.
Embodiment
Embodiment 1
A kind of fire-resisting cable comprises at least one eradication edge core, and centers on insulated wire cores according to the lapping layer of from inside to outside arranging successively, metal armouring layer.
In the technique scheme, insulated wire cores comprises aluminium alloy conductor, and forms around mica tape, insulating barrier that aluminium alloy conductor is from inside to outside arranged successively.Insulating barrier adopts flame-retardant crosslinking polyethylene (as Shanghai lastization macromolecular material Co., Ltd production newly), preferred flame-retardant organosilane cross-linked poly-ethylene material (as Shanghai lastization macromolecular material Co., Ltd production newly).Lapping layer is fireproof glass silk fiber band (open reach Industrial Co., Ltd. as the Wuxi).At least comprise that two thoroughly do away with the edge core, for example can be 2,3,4,5,6,8,10,15, the gap between insulated wire cores is filled with combustion-proof glass fiber rope (as Tianjin gold seashore development in science and technology Co., Ltd).Be provided with inner sheath between inner cladding and the metal armouring layer, the inner sheath material is selected low-smoke halide-free fireproof composite polyolefine material (as Yixing Wangda Plastic Industry Co., Ltd.).It is ST that described inner sheath material adopts the code name that meets the GB/T12706-2008 requirement 8Bittern-free flame-proof material.The metal material that the metal armouring layer adopts is aluminium alloy (aluminium alloy of 5052H24 state, a Shanghai Pan Zhu company).Before the used metal material armouring of metal armouring layer is banded structure, has certain width and thickness, before the used metal material armouring of metal armouring layer is banded structure, having certain width and thickness, is that 8.0~10.0mm, thickness are the metal tape of 0.35~0.45mm for external diameter before the armouring less than the employing width of 15.80mm; For external diameter before the armouring is that the employing width of 15.81mm~20.50mm is that 11.0~13.0mm, thickness are the metal tape of 0.46~0.6mm; For external diameter before the armouring is that the employing width of 20.51mm~38.00mm is that 13.1~15.0mm, thickness are the metal tape of 0.61~0.75mm; For external diameter before the armouring greater than the employing width of 38.00mm for being the metal tape of 0.76~0.9mm greater than 16.0mm, thickness, for example width is 17.00mm.The structure of metal armouring layer is the self-locking sheathed structure, forms flange between armouring adjacent layer and the layer, can realize chain mutual button, and the tension that makes adjacent layer can bear 670N does not at least break away from easily.The profile of metal armouring layer is corrugated or wrinkle shape.Belong to armour and extrude one deck oversheath outward, sheath material adopts the halogen-free flameproof jacket material preferentially to select low-smoke halide-free fireproof composite polyolefine material (Yixing Wangda Plastic Industry Co., Ltd.).Jacket material is that to meet the code name that GB/T12706-2008 requires be ST 8Bittern-free flame-proof material.
Embodiment 2
Referring to Fig. 1, a kind of fire-resisting cable, comprise 1 core, every core is by conductor 1, mica tape 2, and flame-retardant crosslinking polyethylene insulated 3 form, around core, be enclosed with glass fiber band 4 from inside to outside successively, low smoke halogen-free flame-retardant polyolefin inner sheath 5, aluminum alloy strip armouring 6, low smoke halogen-free flame-retardant polyolefin oversheath 7.
Embodiment 3
Referring to Fig. 2, a kind of fire-resisting cable, comprise 3 cores, every core is by conductor 1, mica tape 2, and flame-retardant crosslinking polyethylene insulated 3 form, around core, be enclosed with glass fiber band 4 from inside to outside successively, low smoke halogen-free flame-retardant polyolefin inner sheath 5, aluminum alloy strip armouring 6, low smoke halogen-free flame-retardant polyolefin oversheath 7.
Embodiment 4
Referring to Fig. 3, a kind of fire-resisting cable, comprise 4 cores, every core is by conductor 1, mica tape 2, and flame-retardant crosslinking polyethylene insulated 3 form, around core, be enclosed with glass fiber band 4 from inside to outside successively, low smoke halogen-free flame-retardant polyolefin inner sheath 5, aluminum alloy strip armouring 6, low smoke halogen-free flame-retardant polyolefin oversheath 7.
Embodiment 5
Referring to Fig. 4, a kind of fire-resisting cable, comprise 5 cores, every core is by conductor 1, mica tape 2, and flame-retardant crosslinking polyethylene insulated 3 form, around core, be enclosed with glass fiber band 4 from inside to outside successively, low smoke halogen-free flame-retardant polyolefin inner sheath 5, aluminum alloy strip armouring 6, low smoke halogen-free flame-retardant polyolefin oversheath 7.
Embodiment 6
Referring to Fig. 5, a kind of fire-resisting cable, comprise 3 cores, every core is by conductor 1, mica tape 2, flame-retardant crosslinking polyethylene insulated 3, around core, be enclosed with glass fibre gasket for packing 4, glass fiber band 5, low smoke halogen-free flame-retardant polyolefin inner sheath 6 from inside to outside successively, aluminum alloy strip armouring 7, low smoke halogen-free flame-retardant polyolefin oversheath 8.
Embodiment 7
Referring to Fig. 6, a kind of fire-resisting cable, comprise 4 cores, every core is by conductor 1, mica tape 2, flame-retardant crosslinking polyethylene insulated 3, around core, be enclosed with glass fibre gasket for packing 4, glass fiber band 5, low smoke halogen-free flame-retardant polyolefin inner sheath 6 from inside to outside successively, aluminum alloy strip armouring 7, low smoke halogen-free flame-retardant polyolefin oversheath 8.
Embodiment 8
Referring to Fig. 7, a kind of fire-resisting cable, comprise 5 cores, every core is by conductor 1, mica tape 2, flame-retardant crosslinking polyethylene insulated 3, around core, be enclosed with glass fibre gasket for packing 4, glass fiber band 5, low smoke halogen-free flame-retardant polyolefin inner sheath 6 from inside to outside successively, aluminum alloy strip armouring 7, low smoke halogen-free flame-retardant polyolefin oversheath 8.
In conjunction with the accompanying drawings the utility model has been carried out exemplary description above; obviously the utility model specific implementation is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the unsubstantiality that method of the present utility model design and technical scheme carry out; or design of the present utility model and technical scheme are directly applied to other occasion without improving, all within protection range of the present utility model.

Claims (10)

1. fire-resisting cable, it is characterized in that comprising insulated wire cores, the structure of described insulated wire cores is made of conductor and the mica tape and the insulating barrier that from inside to outside wrap up conductor successively, center on insulated wire cores according to from inside to outside also arranging successively lapping layer, inner sheath, metal armouring layer, oversheath, wherein, the radical of insulated wire cores has one at least.
2. fire-resisting cable according to claim 1 is characterized in that being provided with inner sheath between lapping layer and the metal armouring layer, and the code name that the selection of inner sheath material meets the GB/T12706-2008 requirement is ST 8Bittern-free flame-proof material.
3. fire-resisting cable according to claim 1 and 2 is characterized in that described inner sheath material adopts low-smoke halide-free fireproof composite polyolefine material.
4. fire-resisting cable according to claim 1 is characterized in that the metal material that the metal armouring layer adopts is an aluminum or aluminum alloy.
5. fire-resisting cable according to claim 1, it is characterized in that before the used metal material armouring of metal armouring layer be banded structure, having certain width and thickness, is that 8.0~10.0mm, thickness are the metal tape of 0.35~0.45mm for external diameter before the armouring less than the employing width of 15.80mm; For external diameter before the armouring is that the employing width of 15.81mm~20.50mm is that 11.0~13.0mm, thickness are the metal tape of 0.46~0.6mm; For external diameter before the armouring is that the employing width of 20.51mm~38.00mm is that 13.1~15.0mm, thickness are the metal tape of 0.61~0.75mm; For external diameter before the armouring greater than the employing width of 38.00mm for being the metal tape of 0.76~0.9mm greater than 16.0mm, thickness.
6. fire-resisting cable according to claim 1, the structure that it is characterized in that the metal armouring layer is the self-locking sheathed structure, forms flange between armouring adjacent layer and the layer, can realize chain mutual button, makes adjacent layer can bear the tension of 670N at least.
7. according to claim 1 or 6 described fire-resisting cables, it is characterized in that the profile of metal armouring layer is corrugated or wrinkle shape.
8. fire-resisting cable according to claim 1 is characterized in that the metal armouring layer extrudes one deck oversheath outward.
9. fire-resisting cable according to claim 1 is characterized in that it is ST that jacket material adopts the code name that meets the GB/T12706-2008 requirement 8Bittern-free flame-proof material.
10. fire-resisting cable according to claim 1 is characterized in that oversheath selection low-smoke halide-free fireproof composite polyolefine material.
CN2010202136130U 2010-06-03 2010-06-03 Fire-resistant cable Expired - Fee Related CN201877143U (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102222546A (en) * 2011-06-24 2011-10-19 航天电工技术有限公司 Interlocking type armored optical fiber composite low-voltage cable of creep-resistant aluminum alloy conductor
CN102651252A (en) * 2012-05-16 2012-08-29 上海快鹿电气技术开发有限公司 Flexible mineral insulated fireproof cable
CN102890979A (en) * 2012-09-26 2013-01-23 江苏山峰电缆有限公司 Single-core fire-resistant cable
CN103646702A (en) * 2013-11-29 2014-03-19 四川鑫电电缆有限公司 Aluminum alloy middle-voltage fire-resistant cable
CN103646711A (en) * 2013-11-29 2014-03-19 四川鑫电电缆有限公司 Aluminum alloy fire-resistant cable
CN103646712A (en) * 2013-12-23 2014-03-19 河南金水电缆集团有限公司 Flame-retardant composite fireproof cable
CN104078117A (en) * 2013-03-30 2014-10-01 昆山友进智能建筑工程有限公司 Environment-friendly cable
CN104425070A (en) * 2013-09-02 2015-03-18 无锡市逸翔线缆有限公司 Halogen-free low-smoke flame-retardant cable
CN109763035A (en) * 2019-01-24 2019-05-17 湖南欣意电缆有限公司 A kind of rare earth aluminum alloy power cable and preparation method thereof
CN110428935A (en) * 2019-08-23 2019-11-08 山东华宁电伴热科技有限公司 A kind of double armature high temperature resistant test cable
CN110491563A (en) * 2019-08-22 2019-11-22 圣安电缆有限公司 A kind of shake-proof corrosioning impact flame-retardant house ornamentation cable and its production technology
CN111161915A (en) * 2018-11-08 2020-05-15 普睿司曼股份公司 Fire resistant signaling cable for railway applications

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102222546B (en) * 2011-06-24 2012-10-03 航天电工技术有限公司 Interlocking type armored optical fiber composite low-voltage cable of creep-resistant aluminum alloy conductor
CN102222546A (en) * 2011-06-24 2011-10-19 航天电工技术有限公司 Interlocking type armored optical fiber composite low-voltage cable of creep-resistant aluminum alloy conductor
CN102651252B (en) * 2012-05-16 2014-06-25 上海快鹿电气技术开发有限公司 Flexible mineral insulated fireproof cable
CN102651252A (en) * 2012-05-16 2012-08-29 上海快鹿电气技术开发有限公司 Flexible mineral insulated fireproof cable
CN102890979A (en) * 2012-09-26 2013-01-23 江苏山峰电缆有限公司 Single-core fire-resistant cable
CN104078117A (en) * 2013-03-30 2014-10-01 昆山友进智能建筑工程有限公司 Environment-friendly cable
CN104425070A (en) * 2013-09-02 2015-03-18 无锡市逸翔线缆有限公司 Halogen-free low-smoke flame-retardant cable
CN103646711A (en) * 2013-11-29 2014-03-19 四川鑫电电缆有限公司 Aluminum alloy fire-resistant cable
CN103646702A (en) * 2013-11-29 2014-03-19 四川鑫电电缆有限公司 Aluminum alloy middle-voltage fire-resistant cable
CN103646712A (en) * 2013-12-23 2014-03-19 河南金水电缆集团有限公司 Flame-retardant composite fireproof cable
CN103646712B (en) * 2013-12-23 2016-01-06 河南金水电缆集团有限公司 A kind of flame-retardant composite fireproof cable
CN111161915A (en) * 2018-11-08 2020-05-15 普睿司曼股份公司 Fire resistant signaling cable for railway applications
CN109763035A (en) * 2019-01-24 2019-05-17 湖南欣意电缆有限公司 A kind of rare earth aluminum alloy power cable and preparation method thereof
CN110491563A (en) * 2019-08-22 2019-11-22 圣安电缆有限公司 A kind of shake-proof corrosioning impact flame-retardant house ornamentation cable and its production technology
CN110428935A (en) * 2019-08-23 2019-11-08 山东华宁电伴热科技有限公司 A kind of double armature high temperature resistant test cable

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Address after: 050000 773 Taihang Avenue, hi tech Zone, Hebei, Shijiazhuang

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Patentee before: Joy Sense Cable Co., Ltd.

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Address after: 050000 759 Taihang Avenue, hi tech Zone, Hebei, Shijiazhuang

Patentee after: Yu Guiliang

Patentee after: Lin Zemin

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