This standard BS EN 61537:2007 Cable management. Cable tray systems and cable ladder systems is classified in these ICS categories:
29.120.10 Conduits for electrical purposes
This International Standard specifies requirements and tests for cable tray systems and cable ladder systems intended for the support and accommodation of cables and possibly other electrical equipment in electrical and/or communication systems installations. Where necessary, cable tray systems and cable ladder systems may be used for the division or arrangement of cables into groups.