Large span cable tray is made by pultrusion FRP profiles have been assembled, suitable for power cable, control cable, lighting cables and accessories. Compared with the iron bridge, has a long service life (general design life for 20 years), convenient installation and low cost (weight is only 1/4 of carbon steel, not hot in the construction, single bridge can be up to 8 meters in length, or longer), such as cutting convenient, do not need to maintain superiority.
Should be less than or equal to 1 and the distance between support: support spacing load curve allows load and support span.
2, bridge height is 50, 100 each side 6 connection hole, when the height is 150, 200 in each end 12 connecting hole.
3, separated by laying: when the less power cables and control cables, can be in the same cable tray installation, but must use middle clapboard separates power cables and control cables laying.
4, bridge width: the width of the selection of cable tray, should have some spare space, in order to add cable for future use.
5, cable fixed: collect ark run level, should be set up as far as possible in the connection of the bridge span 1/4. Horizontal direction of the cable is fixed at intervals of about 2 meters, vertical direction of the cable fixed at intervals of about 1.5 meters.