Yes, fiberglass cable trays formulated with UV resistant resin and surface protection can be used outdoors for many years. It offers the highest level of protection for cables against dust, dripping liquids and mechanical damage. Recommended where cables must be. Grounding: Metallic trays (Steel, Aluminum) can be used as part of the equipment grounding conductor, but this must be designed and labeled per code (e. Customers with experience with “raceways” tend to lean towards requiring. According to experts like the IEC, materials like fiberglass and stainless steel are top picks for outdoor stuff because they resist rust and corrosion really well—like, they can hold up for up to 30 years even in tough weather. This is super important if the installation is exposed to rain, sun. The primary rulebook used in the safe use of cable trays is NEC Article 392. This is a description of how to select, install, and support these metal or plastic frames, on which electrical wires are installed.
[PDF Version]