Due to their exposure to the open air because of the cable trays, the wires contained within need a very durable outer covering. The regulations dictate that the cables must either be Type TC (also known as Tray Rated) or must be metal-armored (Type MC). ies aluminum alloys (Aluminum Association designation) to manufacture cable tray. The alloys are selected for their mechanical properties, such as strength and hardness, as well as for their resis ance to corrosion, particularly stress corrosion, cracking, and pitting co anufactured using a. In my opinion the safety installation of cables [armored or not] it is running in metal conduits provided with approved accessories as glands or else. Cable trays are a support system for electrical cables, power, signal, and communication and optical fiber cables. What is the role of a cable tray in electrical engineering? A cable tray allows for the neat and aesthetic arrangement of cables, improves the reliability.
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