Many buildings in Russia still have 127 Vac, rather than 130 V. A lot of equipment is switchable 127-220V. And BTW, 127 * sqrt 3 = 220V.
Leo Simon EMC Corp. Hopkinton, MA From: Dorin [mailto:[email protected]] Sent: Thursday, January 09, 2003 9:00 AM To: Carpentier Kristiaan Cc: 'Hans Mellberg'; Andre Boons; [email protected]; [email protected] Subject: Re: European 3 Phase Probably this is why on the EU market one can find electrical apparatus with a switch 220-120Vac. Thanks, Dorin Carpentier Kristiaan wrote: > I can confirm what Andre says. > My parents house is built in 1955, 130Vac single phase was provided > throughout the whole house (ligthning, socket outlets). > In the seventies, an additional 220V 3phase delta was brought in for an > electric waterboiler and hot plate in the kitchen. > Throughout the years, this 220V was distributed further in the house for TV, > refrig, additional 220V socket outlets. > > In the eigthies, we wanted to change all 130V to 220V with complete removal > of 130V input. > The electricity company did not allow us to switch over unless the complete > in-house installation was approved to the actual wiring regulations (which I > fully understand). > If you know that the 130V distribution has no earth wire nor earthed socket > outlet and all (rubber)wiring is within (unearthed)metal tubes (allowed at > that time), you understand switching over is no option. > > Do they still have equipment on 130V? Yes, fluorescent lamps, flat-iron, > vacuum cleaner, electric saw, dril and ..... they collected enough bulbs for > the next 100 years. > If there is a real problem, a 130-220V trafo helps a lot too. > I'm also sure that the electricity company is not distributing 130V for my > parents house only, many others are in a similar situation. > > But be ware, if you ever buy a house in Belgium, check the voltage as new > owners are obliged to switch over to 230V anyway with all the above > consequences. At least that's what the elec. comp told us. > > Regards, > Kris > > -----Original Message----- > From: Hans Mellberg [mailto:[email protected]] > Sent: donderdag 9 januari 2003 3:02 > To: Andre Boons; [email protected]; [email protected] > Subject: Re: European 3 Phase > > 130V in Belgium??? What equipment do they use? I remember that Stockholm had > up > until 1970 some houses running on DC from the early 1900's but I think all > that is > gone by now!! 130V makes it difficult to buy TV or stereo equipment and > cooking > appliances and refrigerators. > > --- Andre Boons <[email protected]> wrote: > > In Belgium, some areas have 3phase 230V without null (delta). > > Some older houses still have single phase 130V (230 x SQRT 3), probably > > derived from 230V somehow. > > Andre > > > > >From: Hans Mellberg <[email protected]> > > >Reply-To: Hans Mellberg <[email protected]> > > >To: [email protected], [email protected] > > >Subject: Re: European 3 Phase > > >Date: Wed, 8 Jan 2003 08:41:35 -0800 (PST) > > > > > > > > >No, 230V are not available in three phase. The 220/230/240V ARE derived > > >from three > > >phase voltages which are normally 380V or 415V and will converge > somewhere > > >around > > >400V per phase. > > > > > >--- [email protected] wrote: > > > > > > > > What three-phase voltages are commonly available in Europe? Is 230 VAC > > > > three-phase readily available? Is wye or delta most common or doesn't > it > > > > matter? > > > > > > > > Thanks, > > > > Bob Heller > > > > 3M EMC Laboratory, 76-1-01 > > > > St. Paul, MN 55107-1208 > > > > Tel: 651- 778-6336 > > > > Fax: 651-778-6252 > > > > ======================================================= > > ------------------------------------------- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > [email protected] > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Ron Pickard: [email protected] > Dave Heald: [email protected] > > For policy questions, send mail to: > Richard Nute: [email protected] > Jim Bacher: [email protected] > > All emc-pstc postings are archived and searchable on the web at: > http://ieeepstc.mindcruiser.com/ > Click on "browse" and then "emc-pstc mailing list" This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on "browse" and then "emc-pstc mailing list"
