Yes, an electrical cable tray can serve as an EGC if it meets all bonding and grounding requirements outlined in NEC 392. The system must be identified for grounding, have securely bonded sections, and be electrically continuous. For licensed electricians, mastering these principles is essential. Improperly secured covers on outdoor cable trays can cause a serious hazard in harsh environment conditions such as wind, snow, and ice. Customers with experience with “raceways” tend to lean towards requiring. Cables and conductors must be secured to the cable tray at intervals according to installation instructions. It instructs us on how to construct them, where to locate them, and how to stuff them with wires without using too much.
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