Cable types for trough-type cable trays

Cable can either be single core or multi core or multi pair. tray cables are fitted with a shield which as well aims at reducing interference. The most frequently used tray cables are: Type TC – Tray Cable – (NEC Article 336) –Power and control tray cable type TC is a factory assembly of two or more insulated conductors, with or without associated bare or covered grounding conductors, under a non-metallic jacket. Unlike conduit systems, cable trays allow cables to be laid in bundles, improving accessibility, heat. maintain spacing or to keep cables in place when the tray is ect the minimum bend ra-dius for cables as they exit the bottom of the cable tray. Cable Tray Supports: These include trapeze hangers, center-span supports, and wall brackets that anchor the entire system to the building structure (ceiling, wall, or floor).