River Bank is the stackable battery for everything you power, everywhere you go | 19mm Momentary Push Button

I’m confused… “Wire up the outlets for your mining rigs for 240 instead of 120”, shouldn’t you rig it up to use whatever enters your home. Apparently there is a choice, how is that possible, do they run their own generators over there?

That said, why not use 12v halogens (or even mains voltage halogens) to provide the heat? They are ~99% efficient at that, cheap, plentiful, universally available…

In the above, the first was the result of a fault condition making a sub part of the internal chassis float at HT voltage. The second was the result of a “friend” jokingly giving my shoulder a shove when I was working.

The car can accept up to 48 amps, if you purchase the $500 HPWC. Almost 50 miles per hour. Not needed for us.

This thing is going to get really unhappy when you plug your 15 amp motor into it and it’s embedded in your wall outlet.

Later while an engineering student I worked in a factory where they built video projection systems with a 30kV final anode voltage

All of the wire in the high current path is 10 gauge wire that was cut from SOOW cable, so it is, indeed, rated for 600V. In addition, it has 105 degree insulation, which means that it’s actually good for more than 30A. But it’s largely moot since the NEMA 5-15 plugs would only ever be found on 20A circuits (and even then, they likely wouldn’t be dedicated).

So, you agree with 3mm. Good. A step forward. And because I see you want to use that Industrial standard as example how is your standard looking in case of soldermasked and conformal coated board? What I can say is that I used the 3mm/kV rule and never failed me in 25 years, no board rejected ever…and for the sake of the discution, as you know, when we are under 500V/10A circuits things looks a bit different in PCB Design. We are not sending nobody to the Moon nor switching a 500A Engine starter. It’s a max 300W lighbulb Switch and it’s 99.99% safer than the latest zilions of made in China dimmers and fake USB SMPS Mobile Chargers that arrived in your city in the last month.

I recently spent 2 days troubleshooting my main PC because it was shutting down under even normal load, let alone trying to mine cryptocurrency. (I mine on my daily-driver hardware, not investing in a dedicated rig)

You are not understanding something correctly with these statements. You do not want a “hot wire” until you get to where the heat is needed so you have to use thick wires if the voltage is lower between your source and destination if you use a lower voltage.

I can’t remember the exact numbers, but before the change, UK mains voltage was acceptable between something like 210V and 270V, depending on grid load. EU mains had a similar range. All they did, was tighten up the range. So now it’s nominally 230V, with 240V being within acceptable range. Which is good because the voltage stayed exactly the same. They just trimmed the range at the top end to be within the EU standards.

Ive had a few shocks off 220vac but nothing that hospitalized me. But I do distinctly remember a shock recieved by a friend. He had a illegal cb with a zetagi 1kw valve linear amp, it tended to carbon up its changeover contacts and loose quality on ssb so I showed him how to turn it off, isolate it, drain it down and clean them up with contact cleaner. And I kept repeatedly stressing, dont do this without doing the whole isolation things as it will kill otherwise. Well, one day it went bad in the middle of a qso, and this was to some prized russian area, so throwing caution to the wind, he sprays contact cleaner at the relay while mid conversation, while holding a aluminium microphone in other end to talk it up. You guessed it, the valve hv field collapsed into the stream of contact cleaner, threw him across the room and into a wall and his glasses were blown off and twisted by the event. His girlfriend took him to hospital and it took a fortnight before they were happy with his vital signs to declare him fit to leave. All I could say when I visited him was “I bloody told you so” but his girlfriend was up for blaming me “for showing him”, and since then I’ve shied away from showing people things that if they ignore some of my warnings could kill them.