山东电缆桥架选择安装注意事项：

　　Shandong cable tray selection installation note:

　　1．电缆桥架的大载荷、支撑间距应小于允许载荷和支撑跨距。

　　The maximum load, 1 cable tray support spacing should be less than the allowable load and support span.

　　2．桥架的安装应以规范为准，目前可参照《电缆桥架安装图集86SD169》进行。桥架在安装过程中严禁载人，如现场情况确有必要时，必须有保障设施方可载人，本事项对于不合格或非的操作人员尤为重要。

　　2 bridge should be installed in the national standards, the reference to "86SD169" of cable tray installation atlas. Bridge in the installation process is strictly prohibited manned, such as the scene when necessary, must have the safety protection facilities shall be manned, this for the unqualified or non professional personnel is very important.

　　3．桥架的立柱、托臂等支架可与基础预埋件焊接固定，也可采用膨胀螺栓固定，对于现场焊接处一定要做好防腐处理，通常由用户现场涂刷防腐漆。

　　The column, the bracket can be fixed with 3 bridge welding based embedded parts, also can use expansion bolts, the welding place should be well treated, usually by the user site besmear brushs anticorrosive paint.

　　4．电缆桥架水平敷设时，桥架间的对接处距支承点的距离应在跨距的1／4以内，对于大跨距桥架好放在支承架上对接，在有弯通或三通的地方则需单独增加支承点，垂直方向的托臂每隔1．5m设一固定点。

　　4 cable bridge horizontal laying, the distance of supporting points should be in 1 / 4 span bridge within the joint between the distance, it is better for large span bridge connection on the supporting frame, were individually increases the supporting point in a general or three place, perpendicular to the direction of the bracket is provided with a fixed interval of 1.5m.

　　5．桥架内的电缆应用电缆卡带、或金属电缆卡子进行分组固定。对于水平敷设的电缆通常每隔2m左右作一固定点；对于垂直敷设的电缆应每隔1—1．5m固定一次，在改变标高的端部也应予以固定。

　　Cable cable cassette, or metal cable clip 5 group fixed tray. For laying cable level usually every 2m around a fixed point; the cable lifting should be every 1 1.5m fixed time, in the end changes should also be fixed.

　　6．电缆桥架按电力施工规范要求应进行良好接地，对于镀锌电缆桥架无须有专门接地装置，其本体即可作为接地干线；对于表面进行非金属处理的桥架则必须有专门的接地装置；桥架的接地线可用VV-16mm2电缆或等截面的铜编织线，该线通常由用户自备，如由本厂供货，则应在合同中注明，长距离的电缆桥架每隔30—50m接地一次。

　　6 cable tray should be a good grounding in electric power construction specifications, for galvanized cable tray without special grounding device, which can be used as a grounding line; for the surface of non metal bridge must have ground special equipment; bridge ground be used VV-16mm2 cable or section of the copper braided wire, the line is owned by the user, such as by the factory delivery, it should be noted in the contract, the long distance cable tray every 30 50m grounding once.

　　以上就是山东电缆桥架公司发布，如果还有什么疑问，欢迎来电咨询！