This guide breaks down the hardware, standards, and field methods that ensure continuity—from UL 467‑listed lugs and compression connectors to shield termination, tray bonding, and raised‑floor equipotential grids. Protective equipotential bonding: All metal building parts, protective conductors, lightning protection systems and earthing systems are connected to a central equipotential bonding bar (the main EBB). This ensures that there are no dangerous voltage differences. Additional equipotential bonding:. Equipotential bonding (EPB) is a set of electric connections intended to achieve equipotentiality between conductive parts [Source: IEC 60050-195-2021]. Its purpose is that under earth fault conditions, voltages between simultaneously accessible parts are not of such magnitude and duration as to be dangerous. When every piece of metal in a structure sits at equal voltage, current has no reason to flow between objects, which.
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