In early aircraft design, aluminum cable trays were primarily used to support and protect electrical cables, control systems, and other critical components. Metal cable trays are an essential component of modern electrical infrastructure, offering a safe, efficient way to route and support cables. Cable trays are used as an alternative to open wiring or electrical conduit systems, and are commonly used for cable management in. The Cable Tray Institute (CTI) was founded in 1991 to support the cable tray industry by engaging in research, development, education, and the dissemination of information designed to promote, enhance, and increase the visibility of the industry. Many advanced technologies related to cable trays were introduced from abroad. Non-Metallic What is Cable.