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电缆桥架必须进行保护接地

镀锌电缆桥架间连接板的两端可不作接地跨接线.但每块连接板应有不少于2个有防松动螺帽或防松动垫圈的连接固定螺栓。当允许利用电缆桥架构成接地干线回路时.电缆桥架及其支、吊架、连接板应能承受接地故障电流.并满足热效应的要求。
The ends of the connecting plate between the galvanized cable bridge shall not be connected to the ground, but each connecting plate shall have no less than 2 fastening bolts with a loose screw cap or a loose washer. The cable bridge and its branches, hangers and connecting plates should be able to withstand the grounding fault current and meet the requirements of the thermal effect when the cable bridge is allowed to form the ground trunk circuit.
强腐蚀性环境应采用(F)类复合环氧树脂防腐阻燃型电缆桥架。托臂、支架也要选用同样材料,提高桥架及附件的使用寿命,电缆桥架。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。可根据现场还环境及技术要求选用托盘式、槽式、梯级式、玻璃防腐阻燃电缆桥架或钢质普通型桥架。在容易积灰和其它需遮盖的环境或户外场所宜加盖板。在公共通道或户外跨越道路段,底层梯级的底部宜加垫板或在该段使用托盘 。

F type composite epoxy resin anticorrosive and flame retardant cable tray should be used in strong corrosive environment. The bracket and bracket should also use the same material to improve the service life of the bridge and accessories, and the cable bridge. It is advisable to add cover plates to the environment or outdoor areas where ash is easily accumulated and other need to be covered. The tray type, trough type, step type, glass anticorrosive flame retardant cable bridge or steel ordinary bridge can be selected according to the on-site environment and technical requirements. It is advisable to add cover plates to the environment or outdoor areas where ash is easily accumulated and other need to be covered. In the public passage or outdoor crossing the road segment, the bottom of the bottom ladder should be added with a pad or used in the section.
电缆桥架系指电缆梯架、电缆托盘及金属线槽。电缆桥架主要有钢制、铝合金制及玻璃钢制等。钢制桥架表面处理分为喷漆、喷塑、电镀锌,热镀锌、粉沫静电喷涂等工艺。电缆桥架的安装主要有沿顶板安装。沿墙水平和垂直安装、沿竖井安装、沿地面安装。沿电缆沟及管道支架安装等。
The cable tray refers to the cable ladder rack, cable tray and metal wire slot. The cable tray is mainly made of steel, aluminum alloy and FRP. Steel bridge deck surface treatment is divided into spray painting, plastic spraying, galvanizing, hot galvanizing, powder electrostatic spraying and other processes. The installation of the cable bridge is mainly along the roof. Install horizontally and vertically along the wall, install along the shaft, and install along the ground. Installation along the cable trench and the pipe support.
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