You can use cable trays as a support system for wiring methods containing: Other structures include ventilated trough, ventilated channel, and solid bottom. The iconic structure of a cable tray is the ladder system. But you cannot use them in hoistways or where subject to severe physical damage. Cable trays are permitted for other kinds of establishments, too. For industrial establishments, strongly consider using cable trays whenever it is permitted for applications that include many conductors.
Cable trays solve many design and installation problems, save money, and produce a neat, durable installation.
