CN102568681A - Environmental protection shock absorption direct current cable for city track traffic - Google Patents
Environmental protection shock absorption direct current cable for city track traffic Download PDFInfo
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- CN102568681A CN102568681A CN2012100205267A CN201210020526A CN102568681A CN 102568681 A CN102568681 A CN 102568681A CN 2012100205267 A CN2012100205267 A CN 2012100205267A CN 201210020526 A CN201210020526 A CN 201210020526A CN 102568681 A CN102568681 A CN 102568681A
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- direct current
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- track traffic
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Abstract
The invention provides an environmental protection shock absorption direct current cable for city track traffic. The cable comprises a copper conductor arranged in a cable center. An insulating layer, a buffer layer, an integration protection layer, an armor layer and a cracking resistance anti ultraviolet low-smoke halogen free flame retardation polyolefin sheath are arranged in order outside the copper conductor. According to the invention, the insulating layer employs double-layer co-extrusion, internal insulation employs anti ultraviolet 150 DEG C polyethylene insulation irradiation material, and high dielectric strength of insulation is satisfied; external insulation employs anti ultraviolet 125 DEG C halogen free low-smoke flame retardation irradiation material, physical and mechanical, low-smoke, halogen free and flame retardation performance of a core are raised, a water blocking layer employs plastic-aluminum longitudinal covering and low-smoke halogen free flame retardation polyolefin extrusion, and water proof performance is raised; the buffer layer not only can play a vertical water blocking role but also can play a buffer hock absorption role well when the cable is in vibration.
Description
Technical field
The invention belongs to the electric wire field, refer in particular to the urban track traffic of a kind of environmental protection shock-absorbing type and use direct current cables.
Background technology
By 2015, kilometer surplus National urban rail transportation operation mileage will reach 3000, some tier 2 cities have begun the track traffic Shen and have built program at present, and by 2015, National urban planning traffic gross investment maybe will reach 1.2 trillion yuan.Urban track traffic is used for direct current cables that personnel such as subway tunnel, light rail, station concentrate relatively, environment facies are to airtight place; Because of urban track traffic many underground; In case breaking out of fire, the environment of underground sealing bring very big difficulty for personnel escape and fire-fighting work.Cable in these these places that determined to be laid in not only should have very high fire-retardant requirement, and special demands do not produce thick smoke when burning and the halogen acid gas of toxic effect, reduce " secondary disaster " of equipment with the instrument and meter generation.Along with the develop rapidly of urban track traffic, to the demands for higher performance of dc traction cable, existing product can not satisfy composite request.
Summary of the invention
Technical problem to be solved by this invention provides a kind of environmental protection antidetonation type, direct current cables is used in block-water performance urban track traffic high, long service life, to satisfy the needs of current Construction of Urban Rail Traffic.
Direct current cables is used in a kind of environmental protection shock-absorbing type of the present invention urban track traffic; It comprises the copper conductor that is arranged on cable center, and copper conductor is provided with insulating barrier, resilient coating, comprehensive sheath, armour and cracking resistance antiultraviolet low-smoke and halogen-free flame retardant polyolefin jacket outward successively.
Said armour is by overlapping wrapped the forming of soft copper band, and its thickness is preferably 0.15mm.
Said resilient coating adopts the two-sided buffer water-blocking band of semiconductive wrapped, and the rate of putting up is not less than 50%.
Said insulating barrier adopts double-layer coextrusion to form, and 150 ℃ of polyethylene insulation irradiation of antiultraviolet material is adopted in insulation in it, and external insulation adopts 125 ℃ of LSOH anti-flaming irradiation of antiultraviolet material.
Said comprehensive sheath is extruded by vertical aluminum plastic film that wraps and low smoke halogen-free flame-retardant polyolefin and constitutes.
Beneficial effect of the present invention:
1, double-layer coextrusion is adopted in insulation of the present invention, uses two kinds of different inside and outside insulating material, and 150 ℃ of polyethylene insulation irradiation of antiultraviolet material is adopted in interior insulation, mainly is the high dielectric strength that satisfies insulation; External insulation adopts 125 ℃ of LSOH anti-flaming irradiation of antiultraviolet material, mainly is physical and mechanical properties and low cigarette, Halogen, the fire resistance that improves core.
2, comprehensive sheath of the present invention cable impervious layer different from the past; Common cable generally adopts the vertical bag+pe sheath bonding of plastic-aluminum to form; Can not reach low cigarette, Halogen, high flame retardant requirement; The present invention adopts the vertical bag+low smoke halogen-free flame-retardant polyolefin of plastic-aluminum to extrude, and has well solved this problem.
3, armour of the present invention adopts the soft copper band to constitute, and its thickness adopts 0.15mm, and because of copper strips self has good ductility, slickness can play mouse bite preventing, and the effect of worm-eaten reduces bending radius simultaneously, reduces and lays the space.
4, the present invention is outside insulating barrier; Be provided with one deck resilient coating in the comprehensive sheath, it is wrapped by the two-sided buffer water-blocking band of semiconductive, and the rate of putting up is not less than 50%; Can play vertical resistance effect; Can when vibrations take place cable, play good bumper and absorbing shock effect again, satisfy whole cable with environment and the requirement of self expanding with heat and contract with cold.
5, oversheath of the present invention, the low smoke halogen-free flame-retardant polyolefin material of employing cracking resistance, antiultraviolet, weather satisfies subway, tunnel etc. and requires harsh place.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1, innermost layer of the present invention center is a copper conductor 1, copper conductor 1 outer insulating barrier 2, resilient coating 3, comprehensive sheath 4, armour 5 and the cracking resistance antiultraviolet low-smoke and halogen-free flame retardant polyolefin jacket 6 of being provided with successively.Excellent properties such as the present invention has environmental protection, antidetonation, block water are used for subway tunnel. and personnel such as light rail, station concentrate airtight place relatively, have good social benefit and economic benefit, are specially
The above only is a preferred implementation of the present invention, should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also make some improvement, and these improvement also should be regarded as protection scope of the present invention.
Claims (5)
1. direct current cables is used in environmental protection shock-absorbing type urban track traffic; It is characterized in that; It comprises the copper conductor (1) that is arranged on cable center, outer insulating barrier (2), resilient coating (3), comprehensive sheath (4), armour (5) and the cracking resistance antiultraviolet low-smoke and halogen-free flame retardant polyolefin jacket (6) of being provided with successively of copper conductor (1).
2. direct current cables is used in environmental protection shock-absorbing type according to claim 1 urban track traffic, it is characterized in that, armour (5) is by overlapping wrapped the forming of soft copper band.
3. direct current cables is used in environmental protection shock-absorbing type according to claim 1 and 2 urban track traffic, it is characterized in that, resilient coating (3) adopts the two-sided buffer water-blocking band of semiconductive wrapped, and the rate of putting up is not less than 50%.
4. direct current cables is used in environmental protection shock-absorbing type according to claim 1 and 2 urban track traffic; It is characterized in that; Insulating barrier (2) adopts double-layer coextrusion to form; 150 ℃ of polyethylene insulation irradiation of antiultraviolet material is adopted in insulation in it, and external insulation adopts 125 ℃ of LSOH anti-flaming irradiation of antiultraviolet material.
5. direct current cables is used in environmental protection shock-absorbing type according to claim 1 and 2 urban track traffic, it is characterized in that, comprehensive sheath (4) is extruded by vertical aluminum plastic film that wraps and low smoke halogen-free flame-retardant polyolefin and constitutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100205267A CN102568681A (en) | 2012-01-30 | 2012-01-30 | Environmental protection shock absorption direct current cable for city track traffic |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100205267A CN102568681A (en) | 2012-01-30 | 2012-01-30 | Environmental protection shock absorption direct current cable for city track traffic |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102568681A true CN102568681A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100205267A Pending CN102568681A (en) | 2012-01-30 | 2012-01-30 | Environmental protection shock absorption direct current cable for city track traffic |
Country Status (1)
| Country | Link |
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| CN (1) | CN102568681A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448796A (en) * | 2016-10-28 | 2017-02-22 | 济南瑞通铁路电务有限责任公司 | Flame-retardant and fire-resistant direct current power cable applied to rail transit and production system and method |
| CN114334256A (en) * | 2021-12-31 | 2022-04-12 | 福建成田科技有限公司 | Cross-linked polyolefin insulated low-smoke halogen-free flame-retardant B1-grade wire without sheath |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2800449Y (en) * | 2005-03-30 | 2006-07-26 | 上海南大集团有限公司 | DC 1500V railway traffic power cable |
| CN201048061Y (en) * | 2007-06-26 | 2008-04-16 | 上海南大集团有限公司 | Magnetic suspension track traffic power cable |
| CN101714417A (en) * | 2010-01-16 | 2010-05-26 | 兴乐电缆有限公司 | Direct current cable for subway |
| CN201965985U (en) * | 2011-04-13 | 2011-09-07 | 扬州曙光电缆有限公司 | Power cable for advanced passive (AP) 1000 nuclear power station |
| US20120000694A1 (en) * | 2010-04-02 | 2012-01-05 | Ls Cable & System Ltd. | Insulation material composition for dc power cable and the dc power cable using the same |
| CN202454315U (en) * | 2012-02-09 | 2012-09-26 | 江苏新远程电缆股份有限公司 | Direct current cable for environment-friendly shock adsorption urban rail transit |
-
2012
- 2012-01-30 CN CN2012100205267A patent/CN102568681A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2800449Y (en) * | 2005-03-30 | 2006-07-26 | 上海南大集团有限公司 | DC 1500V railway traffic power cable |
| CN201048061Y (en) * | 2007-06-26 | 2008-04-16 | 上海南大集团有限公司 | Magnetic suspension track traffic power cable |
| CN101714417A (en) * | 2010-01-16 | 2010-05-26 | 兴乐电缆有限公司 | Direct current cable for subway |
| US20120000694A1 (en) * | 2010-04-02 | 2012-01-05 | Ls Cable & System Ltd. | Insulation material composition for dc power cable and the dc power cable using the same |
| CN201965985U (en) * | 2011-04-13 | 2011-09-07 | 扬州曙光电缆有限公司 | Power cable for advanced passive (AP) 1000 nuclear power station |
| CN202454315U (en) * | 2012-02-09 | 2012-09-26 | 江苏新远程电缆股份有限公司 | Direct current cable for environment-friendly shock adsorption urban rail transit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106448796A (en) * | 2016-10-28 | 2017-02-22 | 济南瑞通铁路电务有限责任公司 | Flame-retardant and fire-resistant direct current power cable applied to rail transit and production system and method |
| CN106448796B (en) * | 2016-10-28 | 2018-04-03 | 济南瑞通铁路电务有限责任公司 | A kind of track traffic flame-retardant insulation DC electric cable and manufacturing system and method |
| CN114334256A (en) * | 2021-12-31 | 2022-04-12 | 福建成田科技有限公司 | Cross-linked polyolefin insulated low-smoke halogen-free flame-retardant B1-grade wire without sheath |
| CN114334256B (en) * | 2021-12-31 | 2023-09-19 | 福建成田科技有限公司 | Cross-linked polyolefin insulating sheath-free low-smoke halogen-free flame-retardant B1-level wire |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |