Non-zinc plated metal cable trays are conductive
In short the answer is 'depends' but the answer could be 'earthing', 'bonding' or 'neither' depending on the circumstances. Looking at each of these in turn: If the tray is an exposed conductive part it requires earthing. Cable tray may be used as the Equipment Grounding Conductor (EGC) in any installation where qualified persons will service the installed cable tray system. Legrand's offer of global solutions for wiremesh cable trays (and accessories) is one of the most complete on the market. en completely installed, without damage either to conductors or structural system use 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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