CN106992034A - 一种多极距地电测量系统用供电电缆及生产工艺 - Google Patents
一种多极距地电测量系统用供电电缆及生产工艺 Download PDFInfo
- Publication number
- CN106992034A CN106992034A CN201710301501.7A CN201710301501A CN106992034A CN 106992034 A CN106992034 A CN 106992034A CN 201710301501 A CN201710301501 A CN 201710301501A CN 106992034 A CN106992034 A CN 106992034A
- Authority
- CN
- China
- Prior art keywords
- system service
- survey system
- pole span
- many pole
- service cables
- 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
Links
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 238000009422 external insulation Methods 0.000 claims abstract description 18
- 229920001684 low density polyethylene Polymers 0.000 claims abstract description 16
- 239000004702 low-density polyethylene Substances 0.000 claims abstract description 16
- 239000012774 insulation material Substances 0.000 claims abstract description 12
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 8
- 150000002367 halogens Chemical class 0.000 claims abstract description 8
- 238000007747 plating Methods 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000010949 copper Substances 0.000 claims abstract description 7
- 229910052802 copper Inorganic materials 0.000 claims abstract description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 9
- 238000004132 cross linking Methods 0.000 claims description 5
- 230000005855 radiation Effects 0.000 claims description 5
- 230000007774 longterm Effects 0.000 claims description 4
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 claims description 2
- -1 Polyethylene Polymers 0.000 claims 1
- 239000004698 Polyethylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 9
- 229920000915 polyvinyl chloride Polymers 0.000 abstract description 5
- 239000004800 polyvinyl chloride Substances 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 4
- 238000005260 corrosion Methods 0.000 abstract description 4
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000004078 waterproofing Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 abstract description 2
- 238000005336 cracking Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003679 aging effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 125000001309 chloro group Chemical group Cl* 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004719 irradiation crosslinked polyethylene Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/02—Disposition of insulation
- H01B7/0208—Cables with several layers of insulating material
- H01B7/0225—Three or more layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
- H01B3/441—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from alkenes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/1875—Multi-layer sheaths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/2806—Protection against damage caused by corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
- H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
Abstract
本发明公开了一种多极距地电测量系统用供电电缆，包括导体、内绝缘层、外绝缘层和外护套，所述导体采用镀锡软铜导体，所述内绝缘层采用150℃耐候性无卤低烟辐照交联聚乙烯,外绝缘层采用低密度聚乙烯绝缘料，护套层采用‑40℃耐寒型聚氯乙烯护套。本发明同时公开了一种多极距地电测量系统用供电电缆的生产工艺。本发明多极距地电测量系统用供电电缆，在特殊环境中具有耐老化、耐腐蚀、高寿命特性，内绝缘层的设计使得电缆具有优异的绝缘性能和耐老化性能，外绝缘层保证了电缆的气密性和防水性，耐寒聚氯乙烯护套料不仅具有良好的绝缘性能，并且能在‑40℃环境中长期使用，具有优良的抗老化性能。
Description
技术领域
本发明属于属于电线电缆技术领域,特别涉及一种多极距地电测量系统用供电电缆及生产工艺。
背景技术
地电阻率观测是地震前兆观测的主要手段之一，通过不同极距的地电阻率“反演”地下介质中实际发生的不同部位的真电阻率变化过程，为研究与地震或非地震的物理因素关系提供依据，为识别干扰影响和提取地震异常信息提供重要的技术手段。多极距地电阻观测装置是在不同的极距上进行观测，从测控主机引出各个通道的测量电缆，及时反馈地电阻率的变化差异。
发明内容
为解决现有技术和实际情况中存在的上述问题，本发明提供了一种多极距地电测量系统用供电电缆，包括导体、内绝缘层、外绝缘层和外护套，所述导体采用镀锡软铜导体，所述内绝缘层采用150℃耐候性无卤低烟辐照交联聚乙烯, 外绝缘层采用低密度聚乙烯绝缘料，护套层采用-40℃耐寒型聚氯乙烯护套。
优选地，所述供电电缆长期工作温度为150℃，短路温度为250℃。
优选地，所述内绝缘层为红色，绝缘标称厚度为1.2mm 。
优选地，所述外绝缘层为黄色，标称厚度为1.2mm。
本发明同时公开了一种多极距地电测量系统用供电电缆的生产工艺,包括以下步骤：
1）导体加工
2）内绝缘层挤出
3）辐照
4)外绝缘层挤出
5) 外护套挤出。
优选地, 所述步骤1），导体通过上引、大拉、小拉、镀锡四道工序加工而成，所述导体单线伸率≥24%。
优选地, 所述步骤2）内绝缘层挤出，选用150℃耐候型低烟无卤辐照交联聚乙烯绝缘料，进行内层绝缘挤包，绝缘偏心度≤8%。
优选地,所述步骤3）辐照方法为，采用AB-2.5MeV高频高压电子加速器上完成绝缘层辐照交联工序，高压2.3MV，横扫电流2.5A，纵扫电流0.6A，采用大束下排线。
优选地, 所述步骤4）外绝缘层挤出，选用低密度聚乙烯绝缘料，进行外层绝缘挤包，绝缘偏心度≤8%。
本发明是地震前兆观测地电系统中供电电缆，是一种耐老化、防腐蚀、环保、柔软结构的特殊供电电缆。
本发明多极距地电测量系统用供电电缆，在特殊环境中具有耐老化、耐腐蚀、高寿命特性，内绝缘层的设计使得电缆具有优异的绝缘性能和耐老化性能，外绝缘层保证了电缆的气密性和防水性，耐寒聚氯乙烯护套料不仅具有良好的绝缘性能，并且能在-40℃环境中长期使用，具有优良的抗老化性能。
附图说明
图1是本发明实施例的多极距地电测量系统用供电电缆的结构示意图。
具体实施方式
下面结合附图详细介绍本发明技术方案
如图1所示，一种多极距地电测量系统用供电电缆，包括导体1、内绝缘层2、外绝缘层3和外护套4，所述导体1采用镀锡软铜导体，所述内绝缘层2采用150℃耐候性无卤低烟辐照交联聚乙烯, 外绝缘层3采用低密度聚乙烯绝缘料，护套层4采用-40℃耐寒型聚氯乙烯护套。
考虑到传统的聚氯乙烯绝缘老化性能差、在特定环境中出现破损和开裂，并且含有大量氯元素，燃烧时会散发出大量的有毒气体对环境造成危害，本发明选用以下材料。
1、导体：采用Ⅰ级阴极铜板，铜纯度（Cu+Ag）≥99.97%，优质的铜材质保证了导体的电气性能和机械性能。
2、内层绝缘材料：采用耐腐蚀、气密性好，绝缘性能优良的150℃耐候性无卤低烟辐照交联聚乙烯。
通过辐照交联，电缆长期工作温度可达150℃，短路温度最高可达到250℃，并且具有优良的绝缘性能和电气性能。辐照后电缆耐老化性、化学稳定性高，耐环境应力开裂性能强，机械强度高， 安全性好，使用寿命可达60年。
3、外层绝缘材料：采用低密度聚乙烯绝缘料，具有优良的防水性和气密性。能在-40℃的低温条件下使用，不脆裂、不硬化，化学稳定性好，耐水性、耐老化性优良，可耐酸、碱及盐类水溶液的腐蚀作用。
4、护套材料：采用-40℃耐寒型聚氯乙烯护套。
聚氯乙烯分子中含有氯原子，由于C-CL键的偶极影响，它是一种极性很强的材料，也是非结晶性材料，在-40℃环境使用时不会发生开裂现象。
本发明多极距地电测量系统用供电电缆的生产工艺：
1、导体：通过上引、大拉、小拉、镀锡四道工序加工而成，导体满足GB/T 3956-2008要求的5类镀锡软铜导体，单线伸率≥24%，导体20℃的直流电阻满足技术要求。
2、内绝缘层挤出：选用150℃耐候型低烟无卤辐照交联聚乙烯绝缘料，进行内层绝缘挤包，绝缘偏心度≤8%。绝缘内层为红色，绝缘标称厚度为1.2mm，要求表面光滑、无老胶、刮伤等缺陷。
3、辐照：采用AB-2.5MeV高频高压电子加速器上完成绝缘层辐照交联工序，高压2.3MV，横扫电流2.5A，纵扫电流0.6A，采用大束下排线，辐照后要求热延伸及老化后性能可满足技术要求。
4、外绝缘层挤出：选用低密度聚乙烯绝缘料，进行外层绝缘挤包，绝缘偏心度≤8%，外层绝缘为黄色，标称厚度为1.2mm，要求表面光滑、无老胶、刮伤等缺陷。
5、外护套挤出：采用耐寒性聚氯乙烯作为护套料，挤出时要求成品电缆圆整，表面光滑、无老胶、刮伤等缺陷。
本发明多极距地电测量系统用供电电缆耐腐蚀、结构柔软，耐老化达60年限，电缆的内绝缘层和外绝缘层主要承载绝缘和气密性功能，外护套除绝缘外还承载耐老化性能要求；在盐水中浸泡48小时后芯线对外护套表层的绝缘电阻大于30MΩ；直流耐压1000V以上。
本发明多极距地电测量电缆经地震局监测中心长期使用，电缆各项性能满足要求，产品未出现任何异常。
最后应说明的是：以上所述仅为本发明的优选实施例而已，并不用于限制本发明，尽管参照前述实施例对本发明进行了详细的说明，对于本领域的技术人员来说，其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换。凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。
Claims (9)
1.一种多极距地电测量系统用供电电缆，包括导体、内绝缘层、外绝缘层和外护套，其特征在于，所述导体采用镀锡软铜导体，所述内绝缘层采用150℃耐候性无卤低烟辐照交联聚乙烯, 外绝缘层采用低密度聚乙烯绝缘料，护套层采用-40℃耐寒型聚氯乙烯护套。
2.根据权利要求1所述的多极距地电测量系统用供电电缆，其特征在于，所述供电电缆长期工作温度为150℃，短路温度为250℃。
3.根据权利要求1所述的多极距地电测量系统用供电电缆，其特征在于，所述内绝缘层为红色，绝缘标称厚度为1.2mm 。
4.根据权利要求1所述的多极距地电测量系统用供电电缆，其特征在于，所述外绝缘层为黄色，标称厚度为1.2mm。
5.一种权利要求1至4中任一所述的多极距地电测量系统用供电电缆的生产工艺,其特征在于, 包括以下步骤：
1）导体加工
2）内绝缘层挤出
3）辐照
4)外绝缘层挤出
5) 外护套挤出。
6.根据权利要求5所述的多极距地电测量系统用供电电缆的生产工艺,其特征在于,所述步骤1），导体通过上引、大拉、小拉、镀锡四道工序加工而成，所述导体单线伸率≥24%。
7.根据权利要求5所述的多极距地电测量系统用供电电缆的生产工艺,其特征在于,所述步骤2）内绝缘层挤出，选用150℃耐候型低烟无卤辐照交联聚乙烯绝缘料，进行内层绝缘挤包，绝缘偏心度≤8%。
8.根据权利要求5所述的多极距地电测量系统用供电电缆的生产工艺,其特征在于,所述步骤3）辐照方法为，采用AB-2.5MeV高频高压电子加速器上完成绝缘层辐照交联工序，高压2.3MV，横扫电流2.5A，纵扫电流0.6A，采用大束下排线。
9.根据权利要求5所述的多极距地电测量系统用供电电缆的生产工艺,其特征在于,所述步骤4）外绝缘层挤出，选用低密度聚乙烯绝缘料，进行外层绝缘挤包，绝缘偏心度≤8%。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301501.7A CN106992034A (zh) | 2017-05-02 | 2017-05-02 | 一种多极距地电测量系统用供电电缆及生产工艺 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710301501.7A CN106992034A (zh) | 2017-05-02 | 2017-05-02 | 一种多极距地电测量系统用供电电缆及生产工艺 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106992034A true CN106992034A (zh) | 2017-07-28 |
Family
ID=59418366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710301501.7A Pending CN106992034A (zh) | 2017-05-02 | 2017-05-02 | 一种多极距地电测量系统用供电电缆及生产工艺 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106992034A (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613532A (zh) * | 2022-04-25 | 2022-06-10 | 远东电缆有限公司 | 一种耐油耐寒柔性电缆及其制备方法和应用 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2530891A1 (de) * | 1974-08-19 | 1976-03-04 | Moore & Co Samuel | Elektrisches kabel und verfahren zu dessen herstellung |
| US20120318557A1 (en) * | 2011-06-15 | 2012-12-20 | Hitachi Cable, Ltd. | Crosslinked resin composition, and wire, cable and molded wire coated with the same |
| CN203218030U (zh) * | 2013-03-25 | 2013-09-25 | 浙江中天电线电缆有限公司 | 一种耐寒和耐开裂的数据电缆 |
| CN204375443U (zh) * | 2014-11-14 | 2015-06-03 | 黄石昌达线缆有限公司 | 辐照交联光伏电线 |
| CN105225725A (zh) * | 2015-10-28 | 2016-01-06 | 河南开启电力实业有限公司 | 光伏绝缘电缆及其制作方法 |
| CN206075939U (zh) * | 2016-06-24 | 2017-04-05 | 四川新蓉电缆有限责任公司 | 光伏电缆 |
| CN206741952U (zh) * | 2017-05-02 | 2017-12-12 | 兰州众邦电线电缆集团有限公司 | 一种多极距地电测量系统用供电电缆 |
-
2017
- 2017-05-02 CN CN201710301501.7A patent/CN106992034A/zh active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2530891A1 (de) * | 1974-08-19 | 1976-03-04 | Moore & Co Samuel | Elektrisches kabel und verfahren zu dessen herstellung |
| US20120318557A1 (en) * | 2011-06-15 | 2012-12-20 | Hitachi Cable, Ltd. | Crosslinked resin composition, and wire, cable and molded wire coated with the same |
| CN203218030U (zh) * | 2013-03-25 | 2013-09-25 | 浙江中天电线电缆有限公司 | 一种耐寒和耐开裂的数据电缆 |
| CN204375443U (zh) * | 2014-11-14 | 2015-06-03 | 黄石昌达线缆有限公司 | 辐照交联光伏电线 |
| CN105225725A (zh) * | 2015-10-28 | 2016-01-06 | 河南开启电力实业有限公司 | 光伏绝缘电缆及其制作方法 |
| CN206075939U (zh) * | 2016-06-24 | 2017-04-05 | 四川新蓉电缆有限责任公司 | 光伏电缆 |
| CN206741952U (zh) * | 2017-05-02 | 2017-12-12 | 兰州众邦电线电缆集团有限公司 | 一种多极距地电测量系统用供电电缆 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114613532A (zh) * | 2022-04-25 | 2022-06-10 | 远东电缆有限公司 | 一种耐油耐寒柔性电缆及其制备方法和应用 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103971846B (zh) | 一种高压电缆 | |
| CN105336453A (zh) | 双层共挤绝缘辐照交联工艺方法以及低烟无卤阻燃电线 | |
| CN206741952U (zh) | 一种多极距地电测量系统用供电电缆 | |
| CN106992034A (zh) | 一种多极距地电测量系统用供电电缆及生产工艺 | |
| CN105448429A (zh) | 一种电缆的生产工艺 | |
| CN104112498A (zh) | 一种航空航天用超五类耐高温特种电缆 | |
| CN103714902A (zh) | 变压器连接用特种结构环保型电力电缆 | |
| CN203165508U (zh) | 一种太阳能发电用软电缆 | |
| CN104091642A (zh) | 绝缘管母线及其制造方法 | |
| CN107722420A (zh) | 一种高压电缆 | |
| CN203102976U (zh) | 一种外加电流阴极保护系统用直流电缆 | |
| CN208335832U (zh) | 一种用于高中生物理电学实验的绝缘电线 | |
| CN207319725U (zh) | 新型高寿命三层绝缘安全电线 | |
| CN202230798U (zh) | 海底石油管路用中频感应加热带电缆 | |
| CN204440958U (zh) | 一种单芯电子辐照交联光伏电缆 | |
| CN204558112U (zh) | 一种防化学腐蚀性电线 | |
| CN101533683B (zh) | 一种高压避雷电缆 | |
| CN204760098U (zh) | 一种耐高温线缆 | |
| CN201590287U (zh) | 低阻抗光伏系统用电力电缆 | |
| CN210575205U (zh) | 一种具有高弹性抗老化的电缆 | |
| CN103779003A (zh) | 新型绝缘特种电缆及其制备方法 | |
| CN203839062U (zh) | 综合布线用高分子改性弹性体nd-6nf电缆导线 | |
| CN103515001A (zh) | 防鼠蚁光伏电缆 | |
| CN202839063U (zh) | 一种多芯控制电缆 | |
| CN207611638U (zh) | 一种抗拉阻燃阻水型双芯太阳能光伏电缆 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170728 |