CN203288300U - 耐火动力软电缆 - Google Patents
耐火动力软电缆 Download PDFInfo
- Publication number
- CN203288300U CN203288300U CN2013203059417U CN201320305941U CN203288300U CN 203288300 U CN203288300 U CN 203288300U CN 2013203059417 U CN2013203059417 U CN 2013203059417U CN 201320305941 U CN201320305941 U CN 201320305941U CN 203288300 U CN203288300 U CN 203288300U
- Authority
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- Prior art keywords
- fireproof
- conductor
- cable
- fire
- layer
- 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 - Fee Related
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- 239000004020 conductor Substances 0.000 claims abstract description 25
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 10
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 7
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 239000002965 rope Substances 0.000 claims abstract description 3
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 239000003063 flame retardant Substances 0.000 claims description 15
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound 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[Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 239000003365 glass fiber Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 abstract description 7
- 238000010292 electrical insulation Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004642 transportation engineering Methods 0.000 abstract description 3
- 238000011049 filling Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 239000010445 mica Substances 0.000 description 4
- 229910052618 mica group Inorganic materials 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
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- 241000206672 Gelidium Species 0.000 description 1
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- 238000002955 isolation Methods 0.000 description 1
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- 238000000034 method Methods 0.000 description 1
- 229910052627 muscovite Inorganic materials 0.000 description 1
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Abstract
本实用新型公开了一种耐火动力软电缆，包括由不少于一根绝缘线芯组成的电缆缆芯，围绕在所述电缆缆芯上的耐火层，以及挤包于所述耐火层上的外护层，其中绝缘线芯包括由导电材料制成的导体和挤包在所述导体外层的耐火绝缘层，在绝缘线芯与耐火层之间的缝隙内填充有高温填充绳，耐火层采用陶瓷化防火耐火硅橡胶和耐高温玻纤布复合带材料，双层重叠反向扎紧在电缆缆芯上。本实用新型电缆具有优异的电绝缘性能、良好的柔软性能、耐高低温性能及优良的防火耐火性能，加工工艺简单，运输安装方便。
Description
耐火动力软电缆
技术领域
[0001] 本实用新型涉及电线电缆，尤其是涉及一种具有防火耐火功能的动力软电缆。
背景技术
[0002] 随着现代电力工业的发展，城市人口的急剧增长，高层建筑、宾馆酒店、大型超市、医院、地铁、发电厂、核电站、仓库、机场不断增加，防火耐火电缆被广泛应用在这些重要的公共场所。且随着欧盟议会和欧盟理事会RoHS环保指令的提出，人们对于电缆的环保要求也越来越高。
[0003]目前我国电缆行业的防火耐火电缆主要有两大类型:一类是比较普遍的耐火云母带绕包加绝缘的复合型耐火电缆；一类是矿物绝缘金属护套电缆。矿物绝缘金属护套电缆需要专用的生产设备，资金投入大，生产成本高，且外护套为金属材质，产品比重大、弯曲半径小、运输、安装敷设难度大；云母带绕包类耐火电缆则不能通过喷淋、震动试验，现有的很多云母带又比较厚、粘合剂含量高，硬度大，在绕包或弯曲的过程中云母片容易脱落，且云母带种类繁多，好坏参差不齐，稳定性较差，很难保证其耐火性能质量。
发明内容
[0004] 本实用新型的目的在于提供一种耐火动力软电缆，以克服防火耐火电缆现有的技术缺陷，提高电缆的防火耐火性能。
[0005] 本实用新型的耐火动力软电缆包括由不少于一根绝缘线芯组成的电缆缆芯，围绕在所述电缆缆芯上的耐火层，以及挤包于所述耐火层上的外护层，其中所述的绝缘线芯包括由导电材料制成的导体和挤包在所述导体外层的耐火绝缘层，其中在所述绝缘线芯与耐火层之间的缝隙内填充有高温填充绳，所述耐火层采用陶瓷化防火耐火硅橡胶和耐高温玻纤布复合带材料，双层重叠反向扎紧在电缆缆芯上。
[0006] 其中，所述的导体由多股镀锡软铜导体或不镀锡软铜导体绞合而成。
[0007] 所述的耐火绝缘层采用高温陶瓷化耐火硅橡胶制成，外护层可以采用塑料、弹性体或橡胶材料制成。
[0008] 本实用新型耐火动力软电缆的耐火层采用陶瓷化防火耐火硅橡胶和耐高温玻纤布的复合带材料，其中陶瓷化防火耐火硅橡胶是在高温硅橡胶(HTV)中加入白炭黑、硅油、结构化控制剂及其它助剂制成，在常温下具备普通硅橡胶的性能，经过高温火焰的灼烧后结成坚硬的陶瓷化外壳，形成一层良好的隔绝层，使绝缘仍具有一定的机械强度和良好的电绝缘性能；另外，将复合带耐火层双层重叠反向扎紧，复合带在350°C及以上火焰条件下开始变硬，随着温度升高，迅速被烧成陶瓷状坚硬的、完整壳体，保护被烧物体的缆芯不受损坏；绝缘层与复合带耐火层一起发挥双重协同作用，使电缆本身不延燃、不断路、不短路，不断电，起到很好的防火耐火作用。
[0009] 本实用新型的耐火动力软电缆除了具有较高的电绝缘性能、良好的柔软性能及耐高温、耐低温性能外，电缆耐火性能优良，在火灾发生时电缆线路仍能够保持一定时间的正常运行，为救援工作最大限度的赢得宝贵时间，在很大程度上可以减少人员伤亡和财物损失，电缆绝缘层在燃烧时无腐蚀性、毒性物质和气体产生，不会对受灾人造成二次危害，特别适用于公共消防、防火安全要求非常高的场所使用。
[0010] 本实用新型的耐火动力软电缆弯曲半径小，比重小，易运输敷设，加工工艺简单，性价比高。
附图说明
[0011] 图1为本实用新型耐火动力软电缆的结构示意图。
具体实施方式
[0012] 以下通过具体实施方式，并结合附图对本实用新型作进一步说明。
[0013] 耐火动力软电缆的结构如图1所示，自内向外依次包括有导体1、耐火绝缘层2、耐高温填充绳3、耐火层4和外护层5。由多股镀锡或不镀锡软铜绞合而成的导体I和挤包在导体I外层的材质为高温陶瓷化耐火硅橡胶的耐火绝缘层2构成绝缘线芯，多根绝缘线芯绞合构成电缆缆芯。在绝缘线芯的缝隙内填充上耐高温填充绳3后，围绕上耐火层4，耐火层4由陶瓷化防火耐火硅橡胶和耐高温玻纤布复合带双层重叠反向扎紧。最后，将外护层5挤包在耐火层4之上，外护层5可以采用塑料、弹性体或橡胶材料。
[0014] 本实施例耐火动力软电缆的的各项性能均满足设计要求和使用要求，其技术性能指标为:工作电压:0.6/lkV及以下；测试电压、时间:3.5kV/5min，不击穿；电缆弯曲半径:^ 6D (D:电缆外径)。
[0015] 上述实施例是对本实用新型的说明，不是对本实用新型的限定，任何对本实用新型简单变换后的方案均属于本`实用新型的保护范围。
Claims (2)
1.一种耐火动力软电缆，包括由不少于一根绝缘线芯组成的电缆缆芯，围绕在所述电缆缆芯上的耐火层，以及挤包于所述耐火层上的外护层，其中所述的绝缘线芯包括由导电材料制成的导体和挤包在所述导体外层的耐火绝缘层，其特征在于在所述绝缘线芯与耐火层之间的缝隙内填充有高温填充绳，所述耐火层采用陶瓷化防火耐火硅橡胶和耐高温玻纤布复合带材料，双层重叠反向扎紧在电缆缆芯上。
2.根据权利要求1所述的耐火动力软电缆，其特征在于所述的导体由多股镀锡软铜导体或不镀锡软铜导体绞合而成。
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