Cable tray systems are recognized as a wiring method by many national and international electrical codes. Typical requirements address: Tray construction, load ratings, and materials. Support spacing, mechanical strength, and. From the blistering heat of the Mojave Desert to the sweltering temperatures of foundries, cables need to be supported to ensure reliable power and communications. The Cable Tray ng standards, performance standards, test standards and application in this document have been tested extens ompetent professional en completely installed, without damage either to conductors or. The International Electrotechnical Commission (IEC) provides detailed guidelines for cable tray systems under IEC 61537. Whether you're designing a new. cable trays are equivalent. The mechanical and electrical characteristics, tests, certifications, overall quality management, recommendations mentioned in this technical guide only apply to our own cable management ranges and cannot under any circumstances be transposed to si osure, overheating or. Cable trays and pipes work together to manage the flow of electricity, fluids, and gases, with cable trays primarily supporting electrical cables, and pipes transporting liquids, gases, and other materials. Covers construction and test requirements for.