Is the laying of a 40X4 flat steel for fire fighting metal trunking?
Without laying, the cable bridge, each section of the joint, there is a copper wire to prepare flat belt connected, it is bridge grounding jumper cable.
The angle between the bridge is connected or welded together by rivets, but in accordance with the relevant provisions of the State Grid, not admit that these are valid connection. At the same time in order to protect the ground, must have a grounding cable connection between all seams of metal objects, so that it can recognize all of its bridge is connected to one end, through one or a plurality of total grounding grounding.
The cable tray is divided into trough, tray type and ladder format, network structure, and is composed of a bracket, bracket and installation accessories etc.. The building bridge can be set up independently, can also be attached to all kinds of building (structure) of buildings and pipe support, should reflect the characteristics of simple structure, beautiful appearance, flexible configuration and easy maintenance, etc., all parts are to be galvanized, installed in the building outside the open-air Bridge
