These brackets are integral components of cable tray systems, providing stability and ensuring that cables are neatly organized. They come in various shapes and sizes, tailored to fit different types of. -piece tray istypically used in applications where visual esthetics are important. It is available with a ventilated or solid bottom. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned. Standard Dimensions (Unless Shown Otherwise on Drawing): Note: When used for mechanical supports, load capacities of brackets and fittings should be in compliance with the American Standard Code for Pressure Piping. The wire basket is up to. Is your cable tray system optimized for safety, dependability, space and cost savings? Cable tray (or cable ladder) systems are a popular alternative to electrical conduit systems, as they have an outstanding record for dependable service, design flexibility and cost savings in commercial and.