The network of buried conductors that connects grounding electrodes to reduce earth resistance is called a

• A. Ground loop
• B. Bonding strap
• C. Ground grid
• D. Ground bus

Answer: (C)

The buried network that ties grounding electrodes together to lower earth resistance is called a ground grid. This interconnected loop of buried conductors creates multiple pathways for fault current, spreading it across a larger area and reducing the impedance to earth. That lowers the potential difference near structures during faults and improves safety. A bonding strap is just a short conductor that equalizes potential between nearby metal parts, a ground bus is a terminal inside a panel for equipment grounding conductors, and a ground loop usually refers to unwanted circulating currents rather than the electrode network itself.