I too have had problems with TUV requiring brown/blue, so it became a company standard from the inlet to the first component. UL and CSA had no problem with this arangement.
> ---------- > From: [email protected][SMTP:[email protected]] > Reply To: [email protected] > Sent: Thursday, July 30, 1998 8:02 AM > To: [email protected] > Cc: [email protected] > Subject: Re: EN60950 - Internal wiring colours > > [email protected],Internet writes: > >Unless I am missing something, I see no reason why I can't allow our > >North American black and white wiring colours to be used for the line > >and neutral wiring INSIDE a product, even though that product is > >destined for CE-marking and European sales. EN60950 only limits the use > >of green/yellow wiring. As far as I can see, it does not mandate the > >blue/brown colour code. > > > >Does anyone disagree? Thanks. > > > > > >Regards, > > > >Jim Eichner > >Statpower Technologies Corporation > >[email protected] > >http://www.statpower.com > >Any opinions expressed are those of my invisible friend, who really > >exists. Honest. > > > > > Jim, > > I know of no reason you cannot use other than brown / blue inside your > product. I have had occasion to use both intermixed in a product. The TUV > guys preferred that brown/blue was the mains wiring up to the primary of > the transformer. The secondary side was mixed with black/white. > > Never saw a requirement in writing but eventually got tired of explaining > so we now use brown/blue exclusively for anything mains related. In fact, > we prohibit brown/blue for use on any other voltage than mains. And as > always, green / yellow is the only earth ground color; again, its use is > exclusive. We have no problem from CSA with this scheme. > > Regards, > Scott [email protected] >
