Tray Cable ( type TC ) is a factory-made and assembled cable structure that usually contains two or more insulated conductors, optionally with an associated equipment grounding conductor, and is wrapped in a non-metallic sheath. They are extensively deployed in manufacturing facilities, especially in process industries: petrochemical, steel, pulp and paper, cement and mining. These flexible, space-efficient. Tray cable (Type TC), is under NEC Article 336. It provides an efficient solution for installing feeders, branch circuits, and control cables, as multiple tray cable runs can be supported by a single cable tray system. Tray resistant establishments support commercial induses.