So I'm about to have the basement in the house I rent rewired, and I'm putting my hobby repair lab down there. I barely work on anything high-power, maybe a few hundred watts. If I get adventrous when I learn a bit more, I might try repairing vacuum cleaners and microwave's/ washer's/dryers, household level stuff.
I've been watching stuff like this about how current overloads, from short-circuits, are meant to be as high and as fast as possible, to trip the breaker. And how Earth grounding in any ordinary house/building will never be low impedance enough to trip the breaker, in the event you are in parrallel with an energizezed surface and the Earth or stuff bonded to it like a concrete floor.
Then there's Ground fault protection plugs, which, off the top of my head, use magnetics to compare's the current in a load, to the current directly returning on the neutral line, with the rest returning through bonding to Earth (hopefully not through me) and then back to the panel, back to neutral line then back to transformer to complete the loop. I think they use them a lot in Britain, but they are usually just in bathroom's and now-a-day's kitchen's in Canada. I can't say I see them much in anybody's youtube home lab video's ???
I have a 500 or 1000W isolation transformer, and current limiter/light-bulb, and an auto-transformer of also 1kVA or more. So I'm going to mount that all together, with proper switches/etc, basically like Mr.Carlson EE guy did.
I've been watching stuff like this about how current overloads, from short-circuits, are meant to be as high and as fast as possible, to trip the breaker. And how Earth grounding in any ordinary house/building will never be low impedance enough to trip the breaker, in the event you are in parrallel with an energizezed surface and the Earth or stuff bonded to it like a concrete floor.
Then there's Ground fault protection plugs, which, off the top of my head, use magnetics to compare's the current in a load, to the current directly returning on the neutral line, with the rest returning through bonding to Earth (hopefully not through me) and then back to the panel, back to neutral line then back to transformer to complete the loop. I think they use them a lot in Britain, but they are usually just in bathroom's and now-a-day's kitchen's in Canada. I can't say I see them much in anybody's youtube home lab video's ???
I have a 500 or 1000W isolation transformer, and current limiter/light-bulb, and an auto-transformer of also 1kVA or more. So I'm going to mount that all together, with proper switches/etc, basically like Mr.Carlson EE guy did.
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