As I already said, this not means your neutral is not grounded ! If you leave in the jungle and the distance to transformer is more than a few kilometers and your loads are large, what you will measure may be up to 100V. The Ohm law is the same all over the world. best regards, Vasile On Fri, 22 Feb 2002, Francisco Ares wrote: > Please, do not take it for granted: I have already measured 80V from > neutral to ground in some places in my country. Low current capable, > but still feel not willing to touch it ;-) > > Francisco > > > Vasile Surducan wrote: > > >Harold, the neutral is grounded all over the world ! > >But your ideea about don't fusing neutral is wrong because this ground > >connection is done near the transformer and some time there are long > >distances through user to transformer. This means a lot of dropout voltage > >on the neutral. > >Also fusing neutral is not only for short circuits to phase but also for > >high currents in that phase/neutral circuit. > >About 20A on one phase is too much, you'll overbalance the system. The max > >admitted current for one phase system is 9...10 A. > > > >Now you'll check if your device is right projected. [big grin] > > ( east european and russian mains have 220V +20% -15% running at 45...50 Hz. > >Success, Vasile > > > > > > > > > >On Thu, 21 Feb 2002, Harold M Hallikainen wrote: > > > >> I have a customer wanting to use our equipment in Russia. They'd be > >>using a single phase 20A circuit. I understand they use 230V, 50 Hz. Do > >>they have a grouned neutral, as we do here in the US? In the US, we rely > >>on the neutral being grounded, so we don't fuse it (since a neutral short > >>to ground does not create a fire hazard). So, what is the power > >>configuration in Russia? Anyone aware of a website that shows > >>schematically electrical standards throughout the world (single and three > >>phase, from the final distribution transformer(s) to the customer load, > >>including standard placement of grounds, fuses, etc)? > >> > >>Thanks! > >> > >>Harold > >> > >> > >>FCC Rules Online at http://hallikainen.com/FccRules > >>Lighting control for theatre and television at http://www.dovesystems.com > >> > >>________________________________________________________________ > >>GET INTERNET ACCESS FROM JUNO! > >>Juno offers FREE or PREMIUM Internet access for less! > >>Join Juno today! For your FREE software, visit: > >>http://dl.www.juno.com/get/web/. > >> > >>-- > >>http://www.piclist.com hint: PICList Posts must start with ONE topic: > >>[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads > >> > >> > > > >-- > >http://www.piclist.com hint: The list server can filter out subtopics > >(like ads or off topics) for you. See http://www.piclist.com/#topics > > > > > > > > > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu