CN203102937U - 一种抗拉环保型耐火阻燃防白蚁电缆 - Google Patents
一种抗拉环保型耐火阻燃防白蚁电缆 Download PDFInfo
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Abstract
本实用新型公开了一种抗拉环保型耐火阻燃防白蚁电缆,包括有数组导体,每组导体外均依次包覆有复合耐火层和交联聚乙烯绝缘层,并构成绝缘线芯,复合耐火层由内向外依次为云母带、耐火无机短纤维粘胶层和绕包层,数根绝缘线芯与加强钢芯绞合后构成缆芯,缆芯外包覆有玻璃纤维带,玻璃纤维带外依次包覆有无卤绕包带、尼龙防护层和低烟无卤聚烯烃护套层,缆芯与玻璃纤维带之间设有填充层。本实用新型具有较好的耐火性能和抗拉能力,有效地防止了电缆遭到白蚁的啃咬,保证了电缆在受高温灼烧时的使用安全,延长了使用寿命,电缆在发生燃烧时不会释放出大量浓烟和有毒有害气体,对环境污染较小,方便了救援工作的进行。
Description
技术领域
本实用新型涉及电线电缆领域,具体为一种抗拉环保型耐火阻燃防白蚁电缆。
背景技术
随着电力工业、城市建设的快速发展,各行各业对电缆的要求越来越高。传统的电缆较多的采用了隔热性差的结构,不耐火焰灼烧。因此,在发生火灾时,这类电缆不耐火焰烘烤,难以隔绝火焰,因此火焰很容易烧蚀这些保护层,使电缆直接受到火焰的灼烧,导致电缆因短路而不能工作,且普通电缆容易被白蚁啃咬,抗拉能力不佳,使用寿命较短,燃烧时会释放大量浓烟和有毒有害气体,影响救援工作和大气环境。
实用新型内容
本实用新型的目的是提供一种抗拉环保型耐火阻燃防白蚁电缆,以解决现有技术中传统的电缆耐火性能和抗拉能力不佳,容易被白蚁啃咬,使用寿命较短,在发生火灾受火焰灼烧时容易短路,且会释放大量浓烟和有毒有害气体,影响救援工作和大气环境的问题。
为达到上述目的,本实用新型采用的技术方案为:
一种抗拉环保型耐火阻燃防白蚁电缆,包括有数组导体,其特征在于:每组导体外均依次包覆有复合耐火层和交联聚乙烯绝缘层,并构成绝缘线芯,所述复合耐火层由内向外依次为云母带、耐火无机短纤维粘胶层和绕包层,数根绝缘线芯与加强钢芯绞合后构成缆芯,所述缆芯外包覆有玻璃纤维带,所述玻璃纤维带外依次包覆有无卤绕包带、尼龙防护层和低烟无卤聚烯烃护套层,所述缆芯与玻璃纤维带之间设有填充层。
所述的一种抗拉环保型耐火阻燃防白蚁电缆,其特征在于:所述导体为镀锡软铜导体。
所述的一种抗拉环保型耐火阻燃防白蚁电缆,其特征在于:所述耐火无机短纤维粘胶层采用多晶氧化铝或多晶莫来石短纤维制成。
本实用新型的有益效果为:
本实用新型结构简单,采用复合耐火层和玻璃纤维带的设计,为电缆提供了双层耐火保护,有效地提升了电缆的耐火性能,保证了电缆在受高温灼烧时的使用安全;采用数根绝缘线芯与加强钢芯绞合的设计,有效地提升了电缆的抗拉能力,延长了使用寿命;采用硬度和表面光滑度较好的尼龙防护层设计,有效地防止了电缆遭到白蚁的啃咬;采用无卤绕包带和低烟无卤聚烯烃护套层的设计,使得电缆在发生燃烧时不会释放出大量浓烟和有毒有害气体,对环境污染较小,方便了救援工作的进行。
附图说明
图1为本实用新型的结构示意图。
具体实施方式
如图1所示,一种抗拉环保型耐火阻燃防白蚁电缆,包括有数组导体1,每组导体1外均依次包覆有复合耐火层和交联聚乙烯绝缘层5,并构成绝缘线芯,复合耐火层由内向外依次为云母带2、耐火无机短纤维粘胶层3和绕包层4,数根绝缘线芯与加强钢芯6绞合后构成缆芯,缆芯外包覆有玻璃纤维带7,玻璃纤维带7外依次包覆有无卤绕包带8、尼龙防护层9和低烟无卤聚烯烃护套层10,缆芯与玻璃纤维带7之间设有填充层11。
导体1为镀锡软铜导体,耐火无机短纤维粘胶层3采用多晶氧化铝或多晶莫来石短纤维制成。
Claims (3)
1.一种抗拉环保型耐火阻燃防白蚁电缆,包括有数组导体,其特征在于:每组导体外均依次包覆有复合耐火层和交联聚乙烯绝缘层,并构成绝缘线芯,所述复合耐火层由内向外依次为云母带、耐火无机短纤维粘胶层和绕包层,数根绝缘线芯与加强钢芯绞合后构成缆芯,所述缆芯外包覆有玻璃纤维带,所述玻璃纤维带外依次包覆有无卤绕包带、尼龙防护层和低烟无卤聚烯烃护套层,所述缆芯与玻璃纤维带之间设有填充层。
2.根据权利要求1所述的一种抗拉环保型耐火阻燃防白蚁电缆,其特征在于:所述导体为镀锡软铜导体。
3.根据权利要求1所述的一种抗拉环保型耐火阻燃防白蚁电缆,其特征在于:所述耐火无机短纤维粘胶层采用多晶氧化铝或多晶莫来石短纤维制成。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425070A (zh) * | 2013-09-02 | 2015-03-18 | 无锡市逸翔线缆有限公司 | 一种无卤低烟阻燃电缆 |
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| CN104425070A (zh) * | 2013-09-02 | 2015-03-18 | 无锡市逸翔线缆有限公司 | 一种无卤低烟阻燃电缆 |
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Granted publication date: 20130731 Termination date: 20140109 |