Steel beams passing through cable trays
Wherever sheathed cables are passing through a metallic structure, like steel framing, switchboard entries or metal enclosure or cable tray, the entry hole shall be bushed or shaped to protect the cable from damage to the sheath of the cables and potentially exposing a live. This publication is intended as a practical guide for the proper and safe* installation of cable ladder systems, cable tray systems, channel support systems and associated supports. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. On many occasions cable ladder or cable tray is installed in circumstances where it will only ever carry a light cable load, possibly just one or two cables, and its main role is to physically secure and protect its contents.
Read More