What is grounding?

Grounding (Earthing) is the establishment of a reference for the electrical (alternating current [ac] or direct current [dc]) power source, the electrical equipment, or both.

What is bonding?

Bonding is the connection intended to equalize safely and effectively the potential differences between two metallic items (e.g., a telecommunications grounding busbar[TGB] and a cable tray).

What is an AC Grounding Electrode System?

We as ITS installers have no authority over this system but we need to be aware of it. The purpose of the system is to:
  • Establish a reference for AC electrical power systems.
  • Provide a path for the dissipation of currents due to lighting or accidental contact with higher-voltage systems.
  • Provide a path for the dissipation of electrostatic discharge currents.



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