Yes, wire mesh baskets and cable trays can be installed vertically or overhead, and they absolutely should be in many cabling projects. Cable trays are a support system for electrical cables, power, signal, and communication and optical fiber cables. NEC section 300-8 does not permit any tube, pipe, or equal for water, air gas, drainage, steam, or any service other than electrical in raceways or cable trays containing. In vertical trays, cables shall also be secured at intermediate locations as necessary to keep all cables completely within and secured to the tray. 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.
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