General > General Technical Chat
Grumpy rant #783
themadhippy:
--- Quote ---In the US, I think the "regular" NEMA series only goes up to 60 A, for AWG 4 wires. It is roughly 2.5 inch diameter.
A "pin and sleeve" NEMA 4X for 100 A is roughly 3 inch diameter
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our standard connector for larger power is the ceeform(IEC 60309) a 125A 3 pin would be about 4" in diameter and 12" long
Connecteur:
--- Quote from: TimFox on October 08, 2023, 07:39:47 pm ---
--- Quote from: Connecteur on October 08, 2023, 07:31:48 pm ---I say that worldwide everyone should switch to 30 volts DC. Best and safest current for all purposes.
--- End quote ---
That would work well with the infamous 3 kW British tea kettles.
100 A requires, perhaps, AWG 0 = 8.25 mm diam = 53.5 mm2 wire.
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You can keep your clunky plugs for kettles and such. Most everything else can run on safe current.
TimFox:
--- Quote from: PapierzToaletowy on October 08, 2023, 10:20:26 pm ---
--- Quote from: TimFox on October 08, 2023, 09:20:07 pm ---By the way, a typical US home-kitchen electric stove, with four burners and an oven, runs on 240 V (line-line) single phase, pulling 22.5 kW and requiring a 50 A circuit.
If it plugs in, the US outlet is a four-contact NEMA 14-50R.
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Interesting! Thanks for the insight.
Btw. reading about US plugs I learned about "outlet challenge" which involves partially inserting the brick portion of a mobile device charger into a wall outlet and then sliding a penny down onto the brick's exposed metal prongs. The result is a blast of electrical sparks. :palm: :palm: :palm:
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Yes, social media are popular among the clever young people.
fourfathom:
This is how we do it in California:
John B:
--- Quote from: DavidAlfa on October 08, 2023, 08:53:06 pm ---I prefer the Australia sad outlets. The higher the power the sadder they get.
They probably were designed in times where electric energy was really expensive!
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I've never seen most of them in person, I guess most are outdated.
I do however have a UPS with one of these plugs:
I've had a couple of conversations with the electrician on whether I can get this hooked up in the house. The plugs are rated for 32A but I'll only be pulling 25A tops.
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