The function is to provide a continuous, supported pathway that prevents cables from lying loose and vulnerable to physical damage. The system includes straight sections, fittings, and support hardware. Chemical plants have risks like explosive gases, dusts, or vapors. It's serious business – around 15% of chemical plant explosions happen because of. B manufactures its cable tray in a range of materials with a variety of finishes. Straight sections handle the bulk of the cable run, while fittings such as bends, tees, and. Cable tray systems are engineered support structures designed to route, support, and protect insulated electrical cables used for power distribution, control, instrumentation, and communication.