Top Clearance: The top of the cable tray should maintain a minimum distance of 0. 3 meters from the ceiling or any other obstructions. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to si osure, overheating or. Cable trays and conduits share the ceiling void with ducts, pipes, and sprinklers. If you do not plan the layout early, services will clash, and someone has to move. AS/NZS 3000 and AS 3013 set the rules for how far cables must sit from other services, how often you. 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. A rung spacing of 6 to 9 inches (150 to 230 mm) is preferable when the cable tray cont d for instrumentation and control applications that require. Some cable tray systems are appropriate for under floor use, despite the fact that they are normally suspended from ceilings (or) attached to walls. Single Conductor Cables enable cables of. According to DIN EN 61537, a cable support system is used to support and house cables. This spacing is crucial for adequate maintenance access, ease of inspection, and ensuring proper airflow for effective heat dissipation.