Honda EB5000X Owner's Manual page 20

Observe the following precautions to ensure proper GFCl operation
and to reduce shock hazards:
Use grounded 3-conductor extension cords, tools, and appliances,
or double-insulated tools and appliances.
Inspect cords and plugs, and replace if damaged.
Do not use cord lengths greater than 164 feet (50 meters), and do
not use multiple tools and appliances with built-in noise filters. Such
use may activate the GFCl and trip the circuit breaker.
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