Not just the UK - the whole EU is like that! David
On Fri, 21 Mar 2025, 23:40 gregebert, <[email protected]> wrote: > Wow! I had no idea the full 220V was present in the UK; that's a very > dangerous voltage to touch. In the US, neutral is connected to GND at the > point-of-entry to the building and there is also a grounding rod though the > electrical code only requires a maximum of 25 ohms to Earth (it varies due > to soil condition), and definitely wont suffice as a redundant neutral. > > On Friday, March 21, 2025 at 5:58:40 PM UTC+7 Adrian Godwin wrote: > >> GFCI is mandatory on new installations in the UK, typically 20mA. However >> there are a lot of older installations without them. >> However note that the 230V is not served centre-tapped about earth like >> US range power : We have a 230V 'live' terminal and neutral is earthed at >> the substation so may be a few volts above earth at the house due to >> voltage drops in distribution. So it's nominally 230V above earth too, >> there is no possibility of getting 110V without a transformer. >> >> >> On Fri, Mar 21, 2025 at 9:55 AM Rik Declercq <[email protected]> wrote: >> >>> GFCI is mandatory in Belgium on +all+ outlets, they're placed in the >>> switchboard, right after the main manual switch, before all other fuses. >>> There's even 2, actually, one that triggers @ 0.03A (for surviving bathroom >>> and washing machines.... 'wet' accidents) and one @ 0.3 A for everything >>> else. Those are placed in series, so often trigger both if you do something >>> very stupid. >>> >>> >>> >>> On Fri, Mar 21, 2025 at 8:20 AM gregebert <[email protected]> wrote: >>> >>>> For those who live with 220V mains, I'm curious if anyone has used >>>> 110VAC-to-GND for their projects. I'm sure it violates electrical codes, >>>> and there are plenty of reasons why doing that is unsafe, but I wouldn't be >>>> surprised if it's been tried by folks here. >>>> >>>> GFCI (ground fault circuit interruptors) are commonly used here in the >>>> US for some outlets inside homes, usually in areas like kitchens or >>>> bathrooms where water is running, and also outdoors. So, exploiting the GND >>>> prong would cause a GFCI to trip; it's also redundant because all outlets >>>> have a neutral conductor anyways, so using the GND accomplishes nothing. In >>>> other words, we can't get 60VAC using GND (yeah, if we *did*, then I >>>> probably would have used it). >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "neonixie-l" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> To view this discussion, visit >>>> https://groups.google.com/d/msgid/neonixie-l/cc46c9e3-2a36-4d2b-8a9f-be150cde0268n%40googlegroups.com >>>> <https://groups.google.com/d/msgid/neonixie-l/cc46c9e3-2a36-4d2b-8a9f-be150cde0268n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "neonixie-l" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> >> To view this discussion, visit >>> https://groups.google.com/d/msgid/neonixie-l/CAFNBpdFRa6aoPw3YfMY%2BAizecLxMqO22BN6PfVXeroLnvFuOFg%40mail.gmail.com >>> <https://groups.google.com/d/msgid/neonixie-l/CAFNBpdFRa6aoPw3YfMY%2BAizecLxMqO22BN6PfVXeroLnvFuOFg%40mail.gmail.com?utm_medium=email&utm_source=footer> >>> . >>> >> -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion, visit > https://groups.google.com/d/msgid/neonixie-l/fd1d4ff1-2806-46fb-b4ce-178120a0633cn%40googlegroups.com > <https://groups.google.com/d/msgid/neonixie-l/fd1d4ff1-2806-46fb-b4ce-178120a0633cn%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion, visit https://groups.google.com/d/msgid/neonixie-l/CAOQ6x0EbfPWxzdbevNvbSm4dC5UgduYqtL9E8tu%2B9mh51vnbgw%40mail.gmail.com.
