A cable tray system is a unit assembly of sections and fittings that forms a rigid structural system used to securely fasten or support cables and wiring. Think of it as a sophisticated “highway” for cables, keeping them organized, protected, and easily accessible. Today, electrical cable trays have become an essential component in industrial and commercial construction, providing a quick, economical, and. Combined cable trays are a new sort of modern cable trays that are popularly used in modern days. It is available with a ventilated or solid bottom. Channel tray can protect against. In the electrical wiring of buildings, a cable tray system is used to support insulated electrical cables used for power distribution, control, and communication.