Quick Answer
To ensure safe bonding for your generator, connect the equipment grounding conductor to the generator's grounding point and run it to the nearest main grounding point or a grounding rod, typically within 5 feet of the generator.
Grounding Point Location
Identify the generator’s grounding point, usually a grounding lug or busbar, and ensure it’s accessible for future maintenance. This may involve checking the manufacturer’s instructions or consulting an electrician. A grounding point that’s exposed to the elements or easily damaged can compromise the system’s safety.
Grounding Conductor Installation
Run the equipment grounding conductor (typically 6 AWG or 10 AWG) from the generator’s grounding point to the nearest main grounding point, such as a grounding rod or a metal water pipe. Keep the conductor away from the generator’s power cords and other electrical components. For generators rated over 250 volts, use a grounding conductor that’s at least 1/0 AWG or 2 AWG. For generators under 250 volts, use a conductor that’s at least 4 AWG. Secure the conductor to the generator and main grounding point using grounding clamps or terminals, and ensure a minimum of 8 turns of wire to prevent overheating.
Inspection and Testing
Regularly inspect the grounding system for signs of damage, corrosion, or wear. Test the system using a multimeter or a grounding resistance tester to ensure it meets the required resistance levels (typically 20 ohms or less). If any issues are detected, repair or replace the grounding system as needed to maintain a safe and reliable bonding connection.
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