"and I'll repeat it here, gfci doesn't need a ground wire on the tool to work not sure why people think that. Its just watching for imbalance on the hot and neutral."
Ken, YOURE EXACTLY RIGHT and Ive had licensed union electricians say thats incorrect???
Theres a Torroidal Coil that encircles the Hot and Neutral (NOOOOO Ground involved whatsoever) so as long as the current being returned in the Neutral is the same as that going out the Hot THERES NO NET CURRENT AND NO VOLTAGE IS INDUCED INTO THE CORE. HOWEVER if theres a leakage of 5 milliamps (like to frame or ground or anywhere but the Hot) that current difference yields a voltage induced into the coil which triggers the trip.
John T Long retired EE but still remember the basics
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Today's Featured Article - Tractor Profile: Allis-Chalmers WD45 (Gas Version) - by Staff. Beginning production in 1953, the WD45 had the same general look as the WD tractor which was produced earlier - but was much more powerful. This was due to the new 4-cylinder "Power Crater" gasoline engine with a 4 x 4-1/2 inch bore and stroke. Some people feel this was one of the most significant tractors offered by Allis-Chalmers in those days. Nothing in its weight or power class could match its performance. In 1954 they began offering the WD45 with the new "Snap-Coupler&quo
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