Shandong cable tray selection installation note:
The maximum load, 1 cable tray support spacing should be less than the allowable load and support span.
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.
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 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.
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 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.