A boilermaker is installing trays in a tower. Where should the wired plates be installed?

A boilermaker is installing trays in a tower. Where should the wired plates be installed?

• A. Between the trays
• B. On top of the top tray
• C. At the bottom of the tower
• D. Inside the shell around the tray

Answer: (A)

Electrical bonding and static control in a tray tower require a continuous conductive path from one tray to the next. Placing the wired plates between trays creates that bridge, tying adjacent metal surfaces together so the entire column behaves as one grounded unit. This ensures a uniform electrical potential along the height and helps prevent static buildup and related safety issues. If the plate were placed on top of the top tray, at the bottom of the tower, or inside the shell around a tray, you wouldn’t establish a continuous inter-tray bond, so electrical continuity would be incomplete and the intended grounding path would be lost. Therefore, installing the wired plates between the trays best achieves the necessary bonded, low-impedance connection throughout the column.

Electrical bonding and static control in a tray tower require a continuous conductive path from one tray to the next. Placing the wired plates between trays creates that bridge, tying adjacent metal surfaces together so the entire column behaves as one grounded unit. This ensures a uniform electrical potential along the height and helps prevent static buildup and related safety issues. If the plate were placed on top of the top tray, at the bottom of the tower, or inside the shell around a tray, you wouldn’t establish a continuous inter-tray bond, so electrical continuity would be incomplete and the intended grounding path would be lost. Therefore, installing the wired plates between the trays best achieves the necessary bonded, low-impedance connection throughout the column.