TGW是停车场管理系统设计和解决方案的专业人员。
应根据车牌识别系统的不同腐蚀介质采取相应的防护措施。 在腐蚀或特殊湿度的地方使用电缆桥架接线时。 应选择塑料护套电缆。 无设计要求时,不得使用2根金属线作为设备的接地导体。 金属线槽总长度不得少于2处,须与PE或笔式电缆干线连接。
截面不得小于4平方毫米,镀锌线槽之间的连接耦合器两端不与接地线连接,3个非镀锌金属电缆桥架之间的连接板两端与铜芯接地线连接。 但是,在连接板的两端至少应有2个带有锁紧螺母或锁紧垫圈的连接和固定螺栓。 由于金属线槽多由0.41.5rhm厚的钢板制成,因此金属电缆桥架布线一般适合在正常环境下室内场所进行露天敷设。 它的结构特点决定了金属线槽布线不应用于玻璃对金属线槽腐蚀严重的地方。 它是一个封闭的金属线槽,带槽盖,耐火性相当于金属导管。
它可以放在建筑物的天花板上。 它也用于科学研究实验室或具有无法隐藏的预制平板结构的项目。 它也适用于旧项目中的线路改造和更换。 同时,它也用于弱电线路天花板的隐蔽敷设。 塑料电缆桥架一般适用于正常环境下室内场所的露天敷设。
金属线槽和接地: 并遵守以下规定: 金属线槽必须与PE或PF具有可靠的电气连接。 N线。 1. 金属线槽不得与跳线接地线焊接。 无设计要求时,不得使用2根金属线作为设备的接地导体。 金属线槽总长度不得少于2处,须与PE或笔式电缆干线连接。 截面不得小于4平方毫米,镀锌线槽之间的连接耦合器两端不与接地线连接,3个非镀锌金属电缆桥架之间的连接板两端与铜芯接地线连接。 但是,在连接板的两端至少应有2个带有锁紧螺母或锁紧垫圈的连接和固定螺栓。
在分支和转弯处编号的直线应标记。 禁止将电桥直接点焊在金属结构上。 车牌识别系统用于组合桥与附件紧固螺栓的连续连接。 应注意螺栓装置的方向。 桥梁装置完成后,应根据施工图上的标志进行分类,螺栓头应在桥梁内侧,螺母应在外侧。 螺栓长度应适中,紧固后应延伸约10毫米。 当需要将维护管向下引导到水平桥上的设备时,必须使用管座。 伸入桥的管端长度应相同。 管口应装有保护套。维护管应牢固地固定在距维护管弯管300-400毫米的距离处。 弯曲半径,标准弯头和组合弯头装置要求使用标准弯头。 框架的高度应符合设计要求。 弯管的连续连接应在接口处无应力。 连接后不得有凸起或变形。
其纵向和横向中心线应相互垂直。 肘部前后的中心线应重合或相互平行。 同一楼层的桥梁在弯头前后应在同一水平面上,偏差不得大于5毫米。 应使用特殊的过渡连接板,并在现场组装弯头。 车牌识别系统的弯曲角度一般为135度,但不小于90度。
电缆轴和垂直安装的电缆桥架的垂直度偏差不得大于长度的2,水平偏差不得大于2,对角线偏差不得大于对角线长度的5。 比如电话。 智能消防工程。 电视信号工程、通信工程。 如电视监控系统、有线电视。 扩声和声音工程,例如社区中的背景音乐广播和建筑物中的背景音乐。 它主要用于计算机网络。 弱电系统主要针对建筑物和通用布线工程。 包括建筑物、社区、机场、码头、铁路、公路等。 罕见的弱电系统包括: 闭路电视监控系统、防盗报警系统、门禁系统、电子巡更系统、停车场管理系统、可视对讲系统、家庭智能系统和安防系统、背景音乐系统、LED显示系统、等离子拼接屏系统、DLP大屏幕系统、3米复印系统、楼宇自控系统、防雷接地系统寻呼对讲及专业对讲系统、弱电管道系统、up UPS系统、机房系统、综合布线系统、计算机局域网系统、物业管理系统、多功能会议室系统、有线电视系统、卫星电视系统、卫星通信系统、消防系统、电话通信系统、酒店管理系统、视频点播系统等。
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