Strong hangers or brackets should be used to ensure that cable trays do not fall or hang. According to the regulations under NEC 392. This is a description of how to select, install, and support these metal or plastic frames, on which electrical wires are installed. You should consider it as a series of instructions that make the buildings resistant to. NEC Article 392 explains cable trays, their components, appropriate wiring methods for cable trays, and instances where they are and are not permitted for use. Unlike a simple wire trough, which is typically a covered channel for shorter runs, cable trays provide a comprehensive support system for complex wiring paths over long. Cable tray elbows shall be supported per NEMA VE 2 requirements.
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