This is most appropriately done using a laser level. It casts a clear light beam on the ceiling or wall that will enable an individual to determine whether the course is completely straight before any holes are drilled. The trays can be held up in two ways. 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. Cable ladder systems and cable tray systems shall be manufactured in accordance with BS EN 61537, channel support. When developing our cable support OBO can offer reliable solutions for systems, three attributes are at the routing and fastening cables securely core of what we do: efficiency, resil- for each of these installation challeng-ience and safety. These systems, made from metal or plastic, are open structures designed to support electrical conductors, ensuring proper organization and safety. Properly managing cables in these trays ensures the smooth functioning of electrical systems, minimizes downtime, improves maintenance efficiency, and guarantees. 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.