A trough type cable tray is a continuous rigid structure used to securely support insulated electrical cables and raceways. Unlike conduit systems, cable trays allow cables to be laid in bundles, improving accessibility, heat. certification requirements and applications. Whether specifying a major new project, refurbishing existing facilities or doing the engineering, procurement and construction (EPC) for your end user, with T&B Cabletray, ABB offers reliable so utions du g conforming to ASTM A123 & ISO 1461 : m. We are a one-stop shop for top-notch Electrical Cable Tray in Kyrgyzstan. Applications: Power plants and substations, Heavy.