Ungrounded Outlets and the GFCI Solution | Safer Outlets In Old Homes.
grounding - Ungrounded GFCI Outlet with 3 pronged connection - Home Improvement Stack Exchange
Myths and Realities about Ground Fault Circuit Interrupters - Datawise Solutions Electrical
US. Do I understand the function and electrical code correctly? For an ungrounded location, the GFCI is still effective and the label notifies user of no available ground? : r/electricians
Does a GFCI Outlet Still Provide Protection Without A Ground Wire? - YouTube