The cable bridge is suitable for laying power cables and control cables in general industrial and mining enterprises indoor and outdoor. It can also be used for Telecom, radio and television departments to set up indoor and outdoor.
According to the cable load and the environment where the cable tray is installed, and based on the load curve of the cable tray, the type and specification of the cable tray, the spacing of the column, the length of the bracket arm, the level of the cable bridge and the length of the column are determined.
When the cable tray is suspended and the bracket is installed in one side and multi-layer, in order to balance the vertical injection force, the material loading mode should be selected to lay the cable bridge.
Long span cable tray can be selected for long span cable laying.
The protective cover plate shall be selected for cable tray crossing the area vulnerable to external mechanical damage and sun exposure. When the cable tray or truss ladder needs to change branches, various elbow connections can be used.
The support spacing of cable tray shall be less than the allowable support span. A certain spare space should be reserved for the width, so as to add the cable in the future.
The anti-corrosion measures of cable tray are as follows: plastic spraying, galvanizing and passivation, electro galvanizing (applicable to light anti-corrosion areas) hot-dip galvanizing, hot-dip galvanizing (applicable to heavy-duty areas) zinc nickel alloy, etc. The thickness of hot-dip galvanized cable tray should be increased by more than 0.5mm.