CN201503723U - Fireproof power cable - Google Patents
Fireproof power cable Download PDFInfo
- Publication number
- CN201503723U CN201503723U CN2009203116998U CN200920311699U CN201503723U CN 201503723 U CN201503723 U CN 201503723U CN 2009203116998 U CN2009203116998 U CN 2009203116998U CN 200920311699 U CN200920311699 U CN 200920311699U CN 201503723 U CN201503723 U CN 201503723U
- Authority
- CN
- China
- Prior art keywords
- layer
- cable
- power cable
- conductive cores
- fire prevention
- 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.)
- Expired - Lifetime
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 6
- 239000002184 metal Substances 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- 239000010949 copper Substances 0.000 claims description 17
- 239000004020 conductor Substances 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 9
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 abstract description 17
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- 239000010445 mica Substances 0.000 abstract description 6
- 229910052618 mica group Inorganic materials 0.000 abstract description 6
- 230000009970 fire resistant effect Effects 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004880 explosion Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 30
- 230000002950 deficient Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000011491 glass wool Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004049 embossing Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 229910052895 riebeckite Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Insulated Conductors (AREA)
Abstract
本实用新型涉及一种电力电缆，尤其涉及一种适用于易燃易爆的重要场所的供电线路使用的耐火电缆。本实用新型的防火电力电缆，包括导电芯，导电芯外围包裹外护套层，导电芯与外护套层之间由内到外依次包裹绝缘层、绕包层。本实用新型的电缆具有矿物绝缘和云母绝缘耐火电缆的优点于一体的，能满足高耐火、高绝缘性所需的金属无机绝缘护套柔性防火电缆。
The utility model relates to a power cable, in particular to a fire-resistant cable suitable for a power supply line in an important place of inflammability and explosion. The fireproof electric power cable of the utility model comprises a conductive core, and an outer sheath layer is wrapped around the conductive core, and an insulating layer and a wrapping layer are sequentially wrapped between the conductive core and the outer sheath layer from inside to outside. The cable of the utility model has the advantages of mineral insulation and mica insulation fire-resistant cables in one, and can meet the requirements of high fire resistance and high insulation sheathed flexible fireproof cables with metal inorganic insulation.
Description
Technical field
The utility model relates to a kind of power cable, relates in particular to a kind of fire-resisting cable that is applicable to supply line's use in inflammable and explosive important place.
Background technology
Present market at different levels uses the fire-resisting cable kind numerous and diverse, and quality is uneven, and its defective is respectively arranged, for the safety fire-fighting has brought certain hidden danger.For example: mineral insulated cable, though have higher serviceability temperature, voltage withstand class is low, make complexity and waste energy, be abroad to move to transfer made in China a kind of cable.The manufacturing equipment that it has been rarely had is at present abroad changed hands China and oneself is no longer produced, and idol has use also from Chinese import.Have this drum length of cable short again, bending property is poor, the construction requirement height, and use is restricted.
The wrapped fire-resisting cable of traditional mica is owing to contain organic material in its structure, and after meeting fire burns, organic material burns and loses, and make cable can not continue for a long time to use, so the application of such cable is subjected to certain restriction.
In view of the foregoing, cable industry has carried out various improvement to fire-resisting cable, attempt to make it to have the advantage of mineral insulation and mica insulation simultaneously, use not enough to eliminate it, form core by conductor and wrapped mica, filling mineral powder (magnesium oxide) between core and copper sheath, owing to adopt traditional mineral insulation manufacturing process, the defective of mineral insulated cable still exists.
Existing fire-resisting cable also has has increased the inorganic fire-resistant expanding layer of one deck between core and copper sheath.Though inorganic fire-resistant expanding layer has improved the fire-resistance property of cable to a certain extent, the integral insulation level of cable is not improved, and makes it satisfy external applied voltage grade.
The utility model content
Technique effect of the present utility model can overcome above-mentioned defective, and a kind of fire prevention power cable is provided, and it is simple in structure, and fire resistance is good.
For achieving the above object, the utility model adopts following technical scheme: it comprises conductive cores, the peripheral parcel of conductive cores external sheath layer, wrap insulate layer, lapping layer successively from inside to outside between conductive cores and the external sheath layer.
The utility model provides a kind of fire-resisting cable that integrates mineral insulation and mica insulation cable, owing to adopt insulating protective layer to make insulation more closely knit, adopts phase-splitting and turnkey composite insulation structure simultaneously, and the cable body insulation property are improved greatly.
Coated metal restrictive coating between lapping layer and the external sheath layer.
Conductive cores is that single core copper conductor or conductive cores are made up of two or more multicore copper conductors, and conductor is formed circle or many copper single lines is twisted in advance fan-shaped by the stranded back of pressing of many copper single lines, and promptly conductive cores is circular, fan-shaped or watt shape structure.
Cable unit is formed by insulating barrier, lapping layer parcel from inside to outside successively in each conductive cores outside, is provided with inorganic packed layer between the cable unit.
Cable of the present utility model is mainly reflected in following two aspects:
In flame temperature is under 950 ℃ of conditions, makes simultaneously that cable stands that water drenches, vibration and impacting, and applies the 0.6/1kV alternating voltage and last the 3h cable and do not puncture;
Cable is through 2.4kV, 4h and 3.5kV, and 5min AC power frequency withstand voltage test cable does not puncture.
The advantage that cable of the present utility model has mineral insulation and a mica insulation fire-resisting cable is in one, can satisfy high fire-resistant, metal inorganic insulating sleeve flexible fire-proof cable that high-insulativity is required.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is the cross-sectional structure schematic diagram of the utility model single-core cable embodiment 1;
Fig. 2 is the cross-sectional structure schematic diagram of the utility model multicore cable embodiment 2.
Embodiment
Cable comprises conductive cores 1, the peripheral parcel of conductive cores 1 external sheath layer 6, wrap insulate layer 2, lapping layer 3 successively from inside to outside between conductive cores 1 and the external sheath layer 6.
Embodiment 1
The specified maximum working voltage of the conveying of cable is 0.6/1kV, the conductive cores 1 of cable is made up of single core copper conductor, conductor forms circle by the many stranded backs of pressing of copper single line, at the thick thick alkali-free glass wool cloth lapping layer 3 of composite insulation layer 2, two-layer 0.17mm of its wrapped successively multilayer 0.14mm in outside; The vertical annular corrugated metallic sheath layer 5 that wraps copper strips embossing after moulding, welding of the thick electrician's copper one-tenth of one deck 0.3mm～0.5mm in lapping layer 3 outsides extrudes the anticorrosion external sheath layer 6 of the thick low smoke halogen-free flame-retardant polyolefin of one deck 1.4mm～2.2mm at last in metal sheath layer 5 outsides again.
Embodiment 2
The specified maximum working voltage of the conveying of cable is 0.6/1kV, the conductive cores 1 of cable is made up of the multicore copper conductor, conductor by many copper single lines stranded press the back forms circular or many copper single lines are twisted in advance fan-shaped, the lapping layer 3 composition cable unit of the alkali-free glass wool cloth material that insulating barrier 2, the two-layer 0.17mm of the synthetic mica material that wrapped successively multilayer 0.14mm is thick outside it is thick; Be to adopt asbestos cord to fill in the multicore cable stranding process to form inorganic packed layer 4 between the cable unit; Behind the stranding, the synthetic mica insulating barrier 2 that wrapped successively multilayer 0.14mm is thick, the alkali-free glass wool cloth insulation lapping layer 3 that two-layer 0.17mm is thick; The vertical annular corrugated metallic sheath layer 5 that wraps copper strips embossing after moulding, welding of the thick electrician's copper one-tenth of one deck 0.3mm～0.5mm in lapping layer 3 outsides extrudes the anticorrosion external sheath layer 6 of the thick low smoke halogen-free flame-retardant polyolefin of one deck 1.4mm～2.3mm at last in metal sheath layer 5 outsides again.
Claims (7)
1. a fire prevention power cable comprises conductive cores, and the peripheral parcel of conductive cores external sheath layer is characterized in that between conductive cores and the external sheath layer from inside to outside wrap insulate layer, lapping layer successively.
2. fire prevention power cable according to claim 1 is characterized in that coated metal restrictive coating between lapping layer and the external sheath layer.
3. fire prevention power cable according to claim 1 and 2 is characterized in that conductive cores is single core copper conductor.
4. fire prevention power cable according to claim 1 and 2 is characterized in that conductive cores is made up of two or more multicore copper conductors.
5. fire prevention power cable according to claim 4 is characterized in that conductive cores is circular, fan-shaped or watt shape structure.
6. fire prevention power cable according to claim 4 is characterized in that forming cable unit by insulating barrier, lapping layer parcel successively from inside to outside outside each conductive cores.
7. fire prevention power cable according to claim 6 is characterized in that being provided with between the cable unit inorganic packed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203116998U CN201503723U (en) | 2009-09-28 | 2009-09-28 | Fireproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203116998U CN201503723U (en) | 2009-09-28 | 2009-09-28 | Fireproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201503723U true CN201503723U (en) | 2010-06-09 |
Family
ID=42454652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203116998U Expired - Lifetime CN201503723U (en) | 2009-09-28 | 2009-09-28 | Fireproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201503723U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157241A (en) * | 2011-04-08 | 2011-08-17 | 无锡市沪安电线电缆有限公司 | High-temperature resistant fireproof cable with high flexibility |
| CN102376381A (en) * | 2010-08-16 | 2012-03-14 | 江苏八达线缆有限公司 | Fireproof cable |
| CN102831966A (en) * | 2012-08-10 | 2012-12-19 | 安徽埃克森科技集团有限公司 | Flexible mineral insulation fireproof cable |
| CN104505160A (en) * | 2015-01-09 | 2015-04-08 | 四川金正方线缆有限公司 | Copped-sheathed mineral insulation fire-resistant cable |
| CN105023631A (en) * | 2015-01-14 | 2015-11-04 | 四川正方高压线缆有限公司 | Stainless steel mineral-insulated cable |
-
2009
- 2009-09-28 CN CN2009203116998U patent/CN201503723U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376381A (en) * | 2010-08-16 | 2012-03-14 | 江苏八达线缆有限公司 | Fireproof cable |
| CN102157241A (en) * | 2011-04-08 | 2011-08-17 | 无锡市沪安电线电缆有限公司 | High-temperature resistant fireproof cable with high flexibility |
| CN102831966A (en) * | 2012-08-10 | 2012-12-19 | 安徽埃克森科技集团有限公司 | Flexible mineral insulation fireproof cable |
| CN104505160A (en) * | 2015-01-09 | 2015-04-08 | 四川金正方线缆有限公司 | Copped-sheathed mineral insulation fire-resistant cable |
| CN105023631A (en) * | 2015-01-14 | 2015-11-04 | 四川正方高压线缆有限公司 | Stainless steel mineral-insulated cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Changsha Hanhe Chuangye Cable Co., Ltd. Assignor: Qingdao Hanhe Cable Co., Ltd. Contract record no.: 2011430000132 Denomination of utility model: Manufacturing method of 35 KW environmental protection type A kind fire proof power cable for underground railway circuit Granted publication date: 20100609 License type: Exclusive License Record date: 20110812 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100609 |