What is used to make a slight change in elevation in a cable tray system?

In a cable tray system, swivel plates are specifically designed to accommodate slight changes in elevation and direction. They provide the necessary flexibility to adjust the angle of the tray without compromising its structural integrity or the integrity of the cables within it. By utilizing swivel plates, installers can ensure a smooth transition for cables as they move upward or downward, maintaining proper cable management and minimizing any potential strain on the cables.

Other options, such as angle brackets, typically serve a different purpose, like securing and stabilizing the tray at fixed angles, which is not about making slight changes in elevation. Tray connectors are primarily used for joining two separate sections of tray rather than elevating them, and cross members are structural components that add support and strength to the tray system but do not adjust elevation. Thus, swivel plates are the most suitable choice for slight elevation changes in cable trays.