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电梯里的线缆怎样才符合要求?

作者:admin  来源:http://runfada.com/   更新时间:2019-11-02  阅读数:92

  1、满足抗拉(la)(la)(la)强(qiang)度(du):电(dian)(dian)(dian)梯电(dian)(dian)(dian)缆中(zhong)(zhong)有(you)一半是(shi)用(yong)来延伸用(yong)的(de),高层电(dian)(dian)(dian)梯可(ke)达100多米,一百米电(dian)(dian)(dian)缆的(de)自重(zhong)就是(shi)近百公斤(jin),所以电(dian)(dian)(dian)缆要(yao)有(you)足够的(de)抗拉(la)(la)(la)强(qiang)度(du)。现(xian)在(zai)市场(chang)上已有(you)自承(cheng)式扁平(ping)复合电(dian)(dian)(dian)梯监控专用(yong)电(dian)(dian)(dian)缆,这种电(dian)(dian)(dian)缆将视频同轴(zhou)电(dian)(dian)(dian)缆、电(dian)(dian)(dian)源线(xian)、数据线(xian)和钢绞线(xian)复合到一起(qi),做成一根扁平(ping)的(de)带状电(dian)(dian)(dian)缆(电(dian)(dian)(dian)梯随行(xing)电(dian)(dian)(dian)缆),这样整条电(dian)(dian)(dian)缆的(de)拉(la)(la)(la)力(li)由(you)钢丝绳来承(cheng)受,抗拉(la)(la)(la)强(qiang)度(du)非常(chang)好(hao),不会(hui)在(zai)电(dian)(dian)(dian)梯运行(xing)中(zhong)(zhong)由(you)于(yu)重(zhong)力(li)原因拉(la)(la)(la)断信号电(dian)(dian)(dian)缆。

江门电梯公司

  2、良好的电气参数:电缆在随着电梯上下运动的过程中,中间会有一段受重力作用发生弯曲变形,造成电缆的阻抗和分布电容等电气参数发生变化。质量不好的电缆在受力变形时,参数变 化大,就会引起阻抗不匹配、视频衰减加大并产生信号反射,这就会导致视频信号信噪比下降,产生视频干扰,所以应尽量选用屏蔽好的、线径粗的视频电缆,以阻止干扰信号“入侵”。
  文章源自:江门电梯公司 http://runfada.com/