Compared with ordinary cable trays, Long-span cable trays are significantly larger in size and weight. Long-span cable trays are not only suitable for overhead laying of indoor cables in industrial and mining enterprises such as chemical, metallurgical, power, television, and machinery industries, but also can be used as cable supports in underground constructions, such as subways and civil air defense projects.

Installation Instructions from Hebei Long-Span Cable Tray Manufacturers:

1. When moving trough-type long-span cable trays from outdoors to indoors, the outward slope of the trays themselves shall not be less than 1/100.

2. When electrical equipment crosses with long-span cable trays, the net distance between them shall not be less than 0.5 meters.

3. When two cable trays are laid in parallel at the same height, the net distance between them shall not be less than 0.5 meters.

Hebei Long-span Cable Trays:

1. Draw the routing of the cable trays on the layout plan, and clearly mark the exact positions of the starting points, ending points, turning points, branch points, and lifting points of the trays, or determine their dimensions and standard heights with precise positioning. The more accurate, the better.

2. Details such as the supporting points of the trays, the spacing between brackets, columns, and frameworks, as well as their model specifications and elevations, shall be listed in a table on the plan.

3. The height of cable trays from the ground shall be more than 2.2 meters, the net distance from the top of the trays to obstacles or the ceiling shall not be less than 0.3 meters, the filling rate inside the trays shall not exceed 50%, and the width of the trays shall not be less than 0.1 meters.