CN111899942A - 一种阻燃电力电缆 - Google Patents
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Abstract
本发明公开了一种阻燃电力电缆,旨在提供一种能够提高电缆耐火性能的优点,其技术方案要点是,一种阻燃电力电缆,包括导线与分隔片,导线设置在分隔片分隔的区域内,导线的外部包裹有绝缘内衬层,分隔片的外部设有耐温层,耐温层与分隔片之间设有无机玻纤填充物,耐温层的外侧设有隔离层,隔离层的外壁设有纳米气囊反射层,纳米气囊反射层与隔离层之间设有填充层,填充层内设有阻燃颗粒,纳米气囊反射层上设有柔性保护层,柔性保护层的外侧包裹有防水层,防水层的外侧设有受压层,受压层外侧设有水滑石层,水滑石层的外部设有防护层。本发明能够提高电缆的耐火性能。
Description
技术领域
本发明涉及电缆技术领域,具体涉及一种阻燃电力电缆。
背景技术
近年来,电力电缆是用于传输和分配电能的电缆,常用于城市地下电网、发电站引出线路、工矿企业内部供电及过江海水下输电线。电力电缆的基本结构主要包括线芯、绝缘层、屏蔽层和保护层四部分。随着社会生活的迅速提高,各种生活生产活动所需要的电力越来越大,因此,电缆的使用越来越多,其在电力线路中所占的比例也在逐年增加。
但是现有的电缆在实际运用时,仍旧存在较多缺点,如电力的广泛使用使得因用电而造成的火灾越来越多,当电缆载流过大时,电缆就容易温度过高而发生火灾,带来经济损失和社会危害,同时,当电缆附近有火源时,电缆也容易被波及而燃烧,使得危险性大大提高。
发明内容
本发明的目的是提供一种阻燃电力电缆,其具有能够提高电缆耐火性能的优点。
本发明的上述技术目的是通过以下技术方案得以实现的:
一种阻燃电力电缆,包括导线与分隔片,导线设置在分隔片分隔的区域内,导线的外部包裹有绝缘内衬层,分隔片的外部设有耐温层,耐温层与分隔片之间设有无机玻纤填充物,耐温层的外侧设有隔离层,隔离层的外壁设有纳米气囊反射层,纳米气囊反射层与隔离层之间设有填充层,填充层内设有阻燃颗粒,纳米气囊反射层上设有柔性保护层,柔性保护层的外侧包裹有防水层,防水层的外侧设有受压层,受压层外侧设有水滑石层,水滑石层的外部设有防护层。
进一步设置:防护层包括防火层与外护套层,防火层包裹水滑石层,且防火层设置在外护套层内。
进一步设置:外护套层由挤包氧指数为34~36的阻燃低烟无卤聚烯烃护套材料制作而成,且外护套层内侧面与防火层外侧面紧密粘结。
进一步设置:分隔片由PVC材料制成,分隔片内部镶嵌有金属网。
进一步设置:受压层为内侧中空的半圆形状。
进一步设置:纳米气囊反射层上设有囊腔。
综上所述,本发明具有以下有益效果:
1、通过导线的外部包裹有绝缘内衬层能够对导线起到很好的绝缘保护作用,同时通过耐温层使导线对内部线路温度的升高具有很强的耐性,不容易造成线路损伤老化,通过无机玻纤填充物能够防止导线的外部绝缘内衬层长时间受热老化,对电缆的使用造成影响;
2、通过纳米气囊反射层从而起到良好的隔热阻燃以及耐腐蚀的效果,纳米气囊反射层内设有囊腔,囊腔内设有阻燃气体,进一步的提高了整体的阻燃效果;
3、通过纳米气囊反射层上设有柔性保护层,能够提高电缆整体的耐热、耐老化性,延长使用寿命;
4、通过水滑石层可以使电缆在燃烧后能够自行熄灭,而且可以使电缆在燃烧时继续使用一段时间,通过弹性受压层能够使整体的自重减少,延长使用寿命延长。
附图说明
下面结合附图对本发明进一步说明。
图1是阻燃电力电缆结构示意图;
图2是分隔片内金属网结构示意图。
图中,1、导线;2、分隔片;21、金属网;3、绝缘内衬层;4、耐温层;5、无机玻纤填充物;6、隔离层;7、填充物;8、阻燃颗粒;9、纳米气囊反射层;10、囊腔;11、柔性保护层;12、防水层;13、受压层;14、防火层;15、外护套层;16、水滑石层。
具体实施方式
下面结合附图对本发明的具体实施方式做进一步说明。
本发明所采用的技术方案是:
一种阻燃电力电缆,包括导线1与分隔片2,如图1所示、图2所示,分隔片2分隔的区域内设有导线1,分隔片2呈交叉型,且分隔片2由PVC材料制成,分隔片2内部镶嵌有金属网21,导线1的外部包裹有绝缘内衬层3,分隔片2的外部设有耐温层4,耐温层4与分隔片2之间设有无机玻纤填充物5,耐温层4的外侧设有隔离层6。
导线1外部包裹绝缘内衬层3能够防止防止绝缘被铠装损,对导线1起到保护的作用,确保电缆内部不会自燃,通过分隔片2外部的耐温层4,使得电缆内部温度耐受性提高,通过无机玻纤填充物5能够防止导线1的外部绝缘内衬层3长时间受热老化,造成电缆的寿命的降低,通过隔离层6将耐温层4隔离,使得电缆内部的不会轻易的收到损坏。
隔离层6的外壁设有纳米气囊反射层9,通过设置纳米气囊反射层9能够起到很好的隔热阻燃以及耐腐蚀的好处,纳米气囊反射层9内设有囊腔10,囊腔10内设有阻燃气体,阻燃气体包括二氧化碳、惰性气体及混合气体,从而进一步提高了电缆整体的阻燃效果。
纳米气囊反射层9与隔离层6之间设有填充层,填充层内设有阻燃颗粒8,通过填充层以及填充层内的阻燃颗粒8,再一次提高了电缆整体的阻燃效果以及隔热性能,纳米气囊反射层9上设有柔性保护层11,通过柔性保护层11能够提高电缆整体的耐热、耐老化性,延长电缆的使用寿命。
柔性保护层11的外侧包裹有防水层12,防水层12的外侧设有受压层13,受压层13为内侧中空的半圆形状,通过受压层13呈中空半圆形状能够使电缆在受到一定的压力时,外层的受压层13挤压收缩,避免内侧的导体受到损害,受压层13外侧设有水滑石层16,通过水滑石层16进一步保护电缆的阻燃性能。
水滑石层16的外部设有防护层,防护层包括防火层14与外护套层15,防火层14包裹水滑石层16,且防火层14设置在外护套层15内,外护套层15由挤包氧指数为34~36的阻燃低烟无卤聚烯烃护套材料制作而成,外护套层15内侧面与防火层14外侧面紧密粘结。通过外护套层15与防火层14进行防火,同时外护套层15还起到基本的保护作用。
以上是本发明的较佳实施例而已,并非对本发明作任何形式上的限制,凡是依据本发明的技术实质对以上实施例所做的任何简单修改、等同变化与修饰,均属于发明技术方案的范围内。
Claims (6)
1.一种阻燃电力电缆,包括导线(1)与分隔片(2),其特征在于:所述导线(1)设置在分隔片(2)分隔的区域内,导线(1)的外部包裹有绝缘内衬层(3),分隔片(2)的外部设有耐温层(4),耐温层(4)与分隔片(2)之间设有无机玻纤填充物(5),耐温层(4)的外侧设有隔离层(6),隔离层(6)的外壁设有纳米气囊反射层(9),纳米气囊反射层(9)与隔离层(6)之间设有填充层,填充层内设有阻燃颗粒(8),纳米气囊反射层(9)上设有柔性保护层(11),柔性保护层(11)的外侧包裹有防水层(12),防水层(12)的外侧设有受压层(13),受压层(13)外侧设有水滑石层(16),水滑石层(16)的外部设有防护层。
2.根据权利要求1所述的一种阻燃电力电缆,其特征在于:所述防护层包括防火层(14)与外护套层(15),防火层(14)包裹水滑石层(16),且防火层(14)设置在外护套层(15)内。
3.根据权利要求2所述的一种阻燃电力电缆,其特征在于:所述外护套层(15)由挤包氧指数为34~36的阻燃低烟无卤聚烯烃护套材料制作而成,且外护套层(15)内侧面与防火层(14)外侧面紧密粘结。
4.根据权利要求1所述的一种阻燃电力电缆,其特征在于:所述分隔片(2)由PVC材料制成,分隔片(2)内部镶嵌有金属网(21)。
5.根据权利要求1所述的一种阻燃电力电缆,其特征在于:所述受压层(13)为内侧中空的半圆形状。
6.根据权利要求1所述的一种阻燃电力电缆,其特征在于:所述纳米气囊反射层(9)内设有囊腔(10),囊腔(10)内设有阻燃气体,阻燃气体包括二氧化碳、惰性气体及混合气体。
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CN112349454A (zh) * | 2020-11-21 | 2021-02-09 | 鹰潭市锦海电线电缆有限公司 | 一种防火电线 |
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