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Subject: Re: OT: UPS buying suggestion
From: Ralf Mardorf <ralf.mardorf@alice-dsl.net>
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Date: Fri, 18 Oct 2013 12:35:46 +0200
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On Fri, 2013-10-18 at 12:04 +0800, Erich Dollansky wrote:
> > > As mentioned before, a workshop in addition must use an isolating
> > > transformer, by this galvanic isolation you can't get an electric
> 
> I highly doubt this. Only larger workshops have a transformer.

It's needed for every workshop in Germany.

http://www.reichelt.de/?ACTION=3&GROUPID=3320&ARTICLE=21747&SHOW=1&
http://www.reichelt.de/Labornetzgeraete/PEAKTECH-2240/3//index.html?ACTION=3&GROUPID=4952&ARTICLE=101937&SHOW=1&START=0&OFFSET=16&&gclid=CNPrquyVoLoCFcmV3god3h8Abw

Assumed it shouldn't be needed in other countries, it's anyway common
that engineers only work on gear connected to the mains by galvanic
isolation _in all countries_. You won't spend 50,-€ to save lives ;)?

Btw. usually it's an adjustable transformer, because a German workshop
needs to be able to transform the 230V to e.g. 120V for gear build for
the USA etc..