Compared with ordinary cable trays, large-span cable trays are much larger in size and weight. Long-span cable trays are not only suitable for indoor overhead cable laying in industrial and mining enterprises such as chemical engineering, metallurgy, power, television, and machinery, but can also be used for underground construction. For instance, cable support for subways and civil air defense projects.

Introduction and installation of large-span bridge frame manufacturers in Hebei

When the trough-type large-span cable tray is moved indoors from outdoors, the outward slope of the tray itself must not be less than 1/100.

When electrical equipment and long-span cable trays cross each other, the clear distance between them must not be less than 0.5 meters.

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

Hebei long-span bridge frame

Draw the route of the bridge frame on the parallel diagram of the bridge frame, and mark the exact positions of the starting point, ending point, turning point, branch point and lifting point of the bridge frame, or accurately position the dimensions and standard height. The more accurate, the better.

The support points of the bridge frame, the spacing of the support arms, columns and frames, the model specifications and elevations should be listed and described on the plane.

The cable tray should be more than 2.2 meters above the ground. The distance between the top of the tray and obstacles or the ceiling should not be less than 0.3 meters. The filling rate inside the tray should not exceed 50%, and the width of the tray should not be less than 0.1 meters.