彩经网

跨距般为抗震支架15到30m

发布时间:2018-12-24

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  音视频系统工程中电缆桥架/线槽的设计与选择在工程设计中,电缆桥架/线槽的布置应根据经济合理性、技术可行性、运行安全性等因素综合比较,以确定zui佳方案,还要充分满足施工安装、维护检修及电缆敷设的要求。桥架、线槽的区别很多人把桥架与线槽混为一体,认为功能大体相同,其实不然。 桥架(CT)与线槽(MR,也有注标SR)存在很大的区别。 桥架有专门规范(详见CECS31.91),而线槽无专门规范 所以桥架跟线槽是不能混为一谈的,桥架主要是用于铺设电线电缆的,而线槽用于铺设导线和通讯线缆; 桥架相对较大,线槽相对较小; 桥架拐弯半径比较大,而线槽基本上都是拐直角弯; 桥架跨距较大,线槽比较小; 固定、安装方式也不同;一般情况桥架是没有盖子的,线槽通常是带盖封闭的; 线槽走细线、分支线,桥架走强电大电缆。 所以大家在选择桥架是需要注意的哦,不要选错产品而没能达到自己的预期目的就劳神伤财咯。 电缆桥架/线槽的分类 从结构上分类,电缆桥架分为槽式、托盘式和梯架式、网格式等结构,由支架、托臂和安装附件等组成。 以上这些也是目前应用比较多的桥架,但是在国内更多为封闭型桥架。 正因为封闭槽式桥架和线槽之间的概念模糊,所以有些人将桥架和线槽混淆了。选型时应注意桥架/线槽的所有零部件是否符合系列化、通用化、标准化的成套要求。还有一种就是在已经完工的地面上增加线缆时使用的弧形地面线槽。表面为弧形,可以平贴于地面安装。这样的结构避免踢脚,也是在改造工程中比较常见的使用方式。比如在一些zhuxi台的表面,就可以用这种方式增加线缆。
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