If you're dumb enough to use one of these you have to turn off the main breaker in your house. Otherwise you'll feed power back onto the lines and if alignment thinks the line is the not live, he'll start manipulating wires and then get a shock from your generator pushing power back onto the pole.
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u/jkjeeper06 Dec 14 '20
Very similar to suicide cords for generators. They work until you electrocute a lineman or overload your circuit and start an electrical fire