If not designed and installed properly, wiring inside cable trays may pose hazards such as fire, electric shock, and arc-flash blast events. Cable trays can be part of a planned cable management system to support, route, protect, and provide a pathway for cable. Overloading cable trays can lead to a breakdown of the tray, its connecting points, and/or supports, causing hazards to persons underneath the cable tray and even leading to possible electric shock and arc-flash/blast events from component failure when the cables are suddenly no longer sup-ported. 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, commonly used in electrical installations, help organize and protect wiring systems. Power, low voltage control. eferred to support and protect numerous small instrumentation and control cables. Because of its closed design, this type of tray should e used in applications where there is minimal risk of heat generation and buildup. A typical cable tray features a series of open, ladder-like structures made from steel, fiberglass, or aluminum which is installed overhead and in some cases.