Cable trays are used for mechanical protection and giving a perfect routing path for running large quantities of power or control cables overhead or under-floor.
According to the National Electrical Code (NEC), a cable tray is a unit or assembly of units or sections and associated fittings forming a rigid structural system used to securely fasten or support cables and raceways.
Common cable trays are made of galvanized steel, stainless steel, aluminium, or glass-fiber reinforced plastic. The material we are choosing based on where it will be used means installation environment (corrosion and electrical considerations) and its cost. .