ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades A political "standard"

Hey guys, look at the cover of the 1999 NEC. It also has the words "International" on it. 1999 was the 1st year that it appeared.

I thought I read somewhere what countries use the NEC. I am unable to find it just now, but will check next week, after the holiday.

Have a great Thanksgiving, everyone.

Rick Miell

Motor-T:

Yes, like most of Continental Europe, Germany had standardized at 220/380V, but they're now changing to the new E.U. standard of 230/400V nominal.

Whether they've actually changed anything or just indulged in political meddling with the tolerances like the U.K., I don't know.

I would guess the latter, and that across Europe we will start to see true 230/400V supplies as xfmrs get replaced. That's likely to be many, many years, of course.

Big 3-ph motors aren't my specialty. The windings are going to have a higher reactance run on 60Hz than the design value of 50Hz, but even so I'm not sure a 380V motor would be happy on an American 480V supply.

Anyone?