How To Select The Cable Tray Is Correct?

Release time:

2025-06-13

Cable tray design standards cable tray type and type of selection 1, the need to shield the electrical interference of the cable network or protection of external (eg: corrosive liquid Hugh, flammable dust and other environmental) impact requirements, should be selected (FB) class groove composite corrosion-resistant shielded cable tray (with cover).

Strong corrosive environment should be used (F) class composite epoxy resin anti-corrosion flame retardant cable tray. Bracket arm, bracket should also use the same material to improve the bridge and accessory life, cable tray. In the simple accumulation of dust and other need to conceal the environment or field places should be added cover plate.

In addition to the above, according to the site also the environment and technical requirements of the tray type, groove type, ladder type, glass corrosion-retardant cable trays or steel common type bridge. In the simple accumulation of dust and other need to hide the environment or field places should be added cover plate. In the public passage or field across the road section, the bottom of the bottom rungs should be padded or the use of pallets in the section. When the large span crosses the public passage, the load capacity of the bridge can be improved according to the user's requirements or the use of rows of frames.

Standard selection of the width and height of the bridge according to the following table selection, and should be in line with the cable true filling rate does not exceed the value of the provisions of the relevant standards and norms, power cables can be taken as 40% -50%, control cables can be taken as 50% -70%, and other need to leave 10% -25% of the type of program to carry out the residual amount. Various bends and accessories standards should be suitable for the project placement conditions and matching with the bridge. Support, hanger standard selection, should be equipped according to the bridge standard, layer, span and other conditions. And should be satisfied with the load requirements.

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