Due to their exposure to the open air because of the cable trays, the wires contained within need a very durable outer covering. The regulations dictate that the cables must either be Type TC (also known as Tray Rated) or must be metal-armored (Type MC). The short answer is no. It is the first joint effort of NEMA and CSA International to put in one place standards for metal trays per both NEMA and CSA methods. Whether you're a manufacturer, contractor, or quality assurance engineer, understanding the testing behind IEC 61537 can help ensure your systems meet global safety benchmarks. This is critical for safety, ensuring your electrical and data cabling systems. Why do we need to conduct strict testing on cable trays? When the whole project is completed, and the cable tray is delivered, if there is a problem with the cable tray itself, it may cause corrosion in just a few years or even a few months, thus the property loss caused by the replacement of the. Brief Description : Cable tray testing ensures the safety, durability, and performance of cable trays used to support electrical wiring in various environments. This testing evaluates key factors like load capacity, corrosion resistance, fire resistance, and electrical conductivity, ensuring trays. National and local building codes require certification of metallic and nonmetallic outlet boxes and cover: raceway systems employing conduit, conduit fittings and conduit supports; and metallic and nonmetallic cable trays. We offer many certifications for these products and evaluate the.