CN104751979A - Low voltage power cable installable under low temperature - Google Patents
Low voltage power cable installable under low temperature Download PDFInfo
- Publication number
- CN104751979A CN104751979A CN201510137247.2A CN201510137247A CN104751979A CN 104751979 A CN104751979 A CN 104751979A CN 201510137247 A CN201510137247 A CN 201510137247A CN 104751979 A CN104751979 A CN 104751979A
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- CN
- China
- Prior art keywords
- layer
- power cable
- copper conductor
- polypropylene
- wrapping tape
- 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
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Classifications
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- 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
Abstract
The invention discloses a low voltage power cable installable under low temperature, and relates to the technical field of cables. The low voltage power cable installable under the low temperature comprises a copper conductor, an inner sheath layer and an outer sheath layer, wherein a cross-linked polyethylene insulation layer is arranged on the exterior of the copper conductor, a polypropylene wrapping tape layer is arranged on the exterior of the cross-linked polyethylene insulation layer, a filler yarn is arranged between the cross-linked polyethylene insulation layer and the polypropylene wrapping tape layer, and the inner sheath layer, an armor layer and the outer sheath layer are sequentially arranged on the exterior of the polypropylene wrapping tape layer. The low voltage power cable installable under the low temperature is reasonable in design, and guarantees flexibility of cable structure, is easy to bend, and reduces destroying force to insulation when bent due to the fact that a second type stranding copper conductor is used as the copper conductor, is prevented from crazing when bent under minus 20 degree centigrade due to the cross-linked polyethylene insulation layer, guarantees stressed uniformity of an outer sheath when bent through a polypropylene wrapping tape and the polypropylene wrapping tape layer on the exterior of the armor layer, prevents the outer sheath layer from crazing due to large local stress on a steel band lapping portion, and is suitable for safe installation under minus 20 degree centigrade due to the fact that the cable outer sheath is made of cold resistant type polyvinyl chloride sheath material.
Description
Technical field
The present invention relates to cable, particularly relate to a kind of can the lv power cable of low-temperature mounting.
Background technology
Set point of temperature during major part electric wire product mounting and installation is generally all not less than 0 DEG C, lower than needing when 0 DEG C, heat treated is carried out to cable body, ensure that cable body temperature is not less than 0 DEG C, with prevent when mounting and installation due to insulation and sheath material hardening and occur brittle cracking, cause installation accident.Chinese Regional is wide, especially western and the northern territory cycle in winter is long, and the requirement of laying of cable is not less than 0 DEG C, cannot carry out after one side causes electric wire installing engineering in the winter time, affects to execute project progress; Electric wire is all pack with hophornbeam compound dish on the other hand, and profile is huge, more difficult to electric cable heating, and the heating tool specially do not come, misoperation causes damage to cable quality.
Summary of the invention
For solving above-mentioned technological deficiency, the object of the invention be to provide a kind of can the lv power cable of low-temperature mounting.
The solution of the present invention is as follows: a kind of can the lv power cable of low-temperature mounting, comprise copper conductor, inner restrictive coating and external sheath layer, described copper conductor is outside equipped with crosslinked polyetylene insulated layer; Crosslinked polyetylene insulated layer is outside equipped with polypropylene belting layer; Gasket for packing is provided with between crosslinked polyetylene insulated layer and polypropylene belting layer; Be disposed with inner restrictive coating, armour and external sheath layer outside polypropylene belting layer, copper conductor is 2 class twisted copper conductors, ensure that the flexibility of the construction of cable.
Arrange one deck belting layer between described armour and external sheath layer, band material is polypropylene.
Described inner sheath and jacket material are cold resistance polyvinyl chloride protective cover material, are and extrude structure.
The present invention is reasonable in design, copper conductor is 2 class twisted copper conductors, ensure that the flexibility of the construction of cable, be easy to bending, time bending, the destructive power of insulation is reduced, do not ftracture when crosslinked polyetylene insulated layer can ensure bending at-20 DEG C of temperature, the uniformity that when belting layer outside polypropylene band and armour ensure that cable bend, oversheath is stressed, prevent steel band lap-joint local stress excessive, cause external sheath layer to ftracture; Cable jacket adopts cold-resistant polrvinyl chloride protective cover material, is applicable to safety in-20 DEG C of temperature ranges and installs.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Wherein: 1, copper conductor; 2, crosslinked polyetylene insulated layer; 3, gasket for packing; 4, polypropylene belting layer; 5, inner restrictive coating; 6, armour; 7, belting layer; 8, external sheath layer.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described;
As shown in Figure 1, a kind of can the lv power cable of low-temperature mounting, comprise copper conductor 1, inner restrictive coating 5 and external sheath layer 8, described copper conductor 1 is outside equipped with crosslinked polyetylene insulated layer 2; Crosslinked polyetylene insulated layer 2 is outside equipped with polypropylene belting layer 4; Gasket for packing 3 is provided with between crosslinked polyetylene insulated layer 2 and polypropylene belting layer 4; Be disposed with inner restrictive coating 5, armour 6 and external sheath layer 8 outside polypropylene belting layer 4, copper conductor 1 is 2 class twisted copper conductors, ensure that the flexibility of the construction of cable.
Arrange one deck belting layer 7 between described armour 6 and external sheath layer 8, band material is polypropylene.
Described inner sheath 5 and oversheath material 8 material are cold resistance polyvinyl chloride protective cover material, are and extrude structure.
Although give detailed description and explanation to the specific embodiment of the present invention above; but what should indicate is; we can carry out various equivalence according to conception of the present invention to above-mentioned execution mode and change and amendment; its function produced do not exceed that specification contains yet spiritual time, all should within protection scope of the present invention.
Claims (3)
1. can the lv power cable of low-temperature mounting, comprise copper conductor, inner restrictive coating and external sheath layer, it is characterized in that: described copper conductor is outside equipped with crosslinked polyetylene insulated layer; Crosslinked polyetylene insulated layer is outside equipped with polypropylene belting layer; Gasket for packing is provided with between crosslinked polyetylene insulated layer and polypropylene belting layer; Inner restrictive coating, armour and external sheath layer is disposed with outside polypropylene belting layer.
2. according to claim 1 a kind of can the lv power cable of low-temperature mounting, it is characterized in that: arrange one deck belting layer between described armour and external sheath layer, band material is polypropylene.
3. according to claim 1 a kind of can the lv power cable of low-temperature mounting, it is characterized in that: described inner sheath and jacket material are cold resistance polyvinyl chloride protective cover material, are and extrude structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137247.2A CN104751979A (en) | 2015-03-27 | 2015-03-27 | Low voltage power cable installable under low temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510137247.2A CN104751979A (en) | 2015-03-27 | 2015-03-27 | Low voltage power cable installable under low temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104751979A true CN104751979A (en) | 2015-07-01 |
Family
ID=53591519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510137247.2A Pending CN104751979A (en) | 2015-03-27 | 2015-03-27 | Low voltage power cable installable under low temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104751979A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180676A (en) * | 2017-05-09 | 2017-09-19 | 四川新东方电缆集团有限公司 | A kind of anti-freeze cable and its production method |
| CN111968785A (en) * | 2020-08-21 | 2020-11-20 | 安徽凯诺电缆科技有限公司 | Halogen-free low-smoke flame-retardant power cable |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110281050A1 (en) * | 2010-05-12 | 2011-11-17 | Qibo Jiang | Pvdf/pvc alloys for plenum cable applications |
| CN202632805U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Aluminum core irregular compressing conductor fire-resisting cable |
| CN202940048U (en) * | 2012-11-13 | 2013-05-15 | 安徽欣意电缆有限公司 | Waterproof aluminum alloy power cable |
| CN203631167U (en) * | 2013-10-30 | 2014-06-04 | 杭州电缆股份有限公司 | Medium-voltage wind energy power cable |
| CN203787158U (en) * | 2014-04-25 | 2014-08-20 | 安徽长风电缆集团有限公司 | Cold-resistant tensile environmental protection cable |
| CN203839118U (en) * | 2014-04-14 | 2014-09-17 | 江苏宏图高科技股份有限公司 | Low and medium voltage composite power cable |
| CN203941756U (en) * | 2014-05-30 | 2014-11-12 | 昆山市长江电线电缆厂 | Longitudinally waterproof medium-pressure power cable |
| CN204480773U (en) * | 2015-03-27 | 2015-07-15 | 安徽华电线缆集团有限公司 | A kind of can the lv power cable of low-temperature mounting |
-
2015
- 2015-03-27 CN CN201510137247.2A patent/CN104751979A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110281050A1 (en) * | 2010-05-12 | 2011-11-17 | Qibo Jiang | Pvdf/pvc alloys for plenum cable applications |
| CN202632805U (en) * | 2012-06-27 | 2012-12-26 | 安徽龙庵电缆集团有限公司 | Aluminum core irregular compressing conductor fire-resisting cable |
| CN202940048U (en) * | 2012-11-13 | 2013-05-15 | 安徽欣意电缆有限公司 | Waterproof aluminum alloy power cable |
| CN203631167U (en) * | 2013-10-30 | 2014-06-04 | 杭州电缆股份有限公司 | Medium-voltage wind energy power cable |
| CN203839118U (en) * | 2014-04-14 | 2014-09-17 | 江苏宏图高科技股份有限公司 | Low and medium voltage composite power cable |
| CN203787158U (en) * | 2014-04-25 | 2014-08-20 | 安徽长风电缆集团有限公司 | Cold-resistant tensile environmental protection cable |
| CN203941756U (en) * | 2014-05-30 | 2014-11-12 | 昆山市长江电线电缆厂 | Longitudinally waterproof medium-pressure power cable |
| CN204480773U (en) * | 2015-03-27 | 2015-07-15 | 安徽华电线缆集团有限公司 | A kind of can the lv power cable of low-temperature mounting |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107180676A (en) * | 2017-05-09 | 2017-09-19 | 四川新东方电缆集团有限公司 | A kind of anti-freeze cable and its production method |
| CN111968785A (en) * | 2020-08-21 | 2020-11-20 | 安徽凯诺电缆科技有限公司 | Halogen-free low-smoke flame-retardant power cable |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150701 |