Tania: Thanks. I think your's is the correct answer, and it's certainly the one I wanted to hear, so I'm going to run with it!
It makes sense, I think, in that wiring internal to a product (and not in a user-access area) is only going to be seen by the factory and by authorized service people, who have training and access to schematics. For them, the "wrong" colour code shouldn't pose a hazard. Thanks again to all who responded, Jim > -----Original Message----- > From: Grant, Tania (Tania) [SMTP:[email protected]] > Sent: Thursday, July 30, 1998 2:17 PM > To: 'EMC-PSTC - forum'; 'Jim Eichner' > Subject: RE: EN60950 - Internal wiring colours > > Jim, > > Annex ZA of EN6095 provides a list of referenced standards, including > IEC 364, Electrical installations of buildings, which in turn > references > HD 384. The explanatory text of this Annex states the following > (appropriate sections capitalized by me for emphasis): > > "This European Standard incorporates...provisions from other > publications. > These normative references are CITED AT THE APPROPRIATE PLACES IN THE > TEXT and the publications are listed hereafter." > > Now, in Section 3, Wiring, HD 384 is NOT cited anyplace, not even for > the green/yellow safety ground (2.5.5 and 3.1.6). My take on this > is > that, therefore, you can use whatever color you choose for internal > wiring, with the exception of the safety ground wire. > > I've had experience with certain European agencies demanding "nice to > have" stuff that is not required anyplace in the standard. My usual > response is to ask them politely to educate me regarding this matter > and > show me just where that specific requirement is documented. I've yet > to > be educated on the following subjects: color of internal wiring, red > LEDs on disk drives that "must" be green, package reclaiming & > recycling, and various ergonomic requirements. Note that this latter > issue was not a mandatory requirement some 15 years ago, and was > definitely not part of the scope of any TUV type agency. I believe > that > today there is either an ISO type ergonomic standard, especially for > terminals and keyboards, or national (Swedish?). But I believe that > these are industry type standards and do not fall under the scope of > EN60950. However, I am always willing to be educated!!!!!! > > Tania Grant, Lucent Technologies, Octel Messaging Division > [email protected] > > > ---------- > > From: Jim Eichner[SMTP:[email protected]] > > Reply To: Jim Eichner > > Sent: Thursday, July 30, 1998 12:24 PM > > To: 'EMC-PSTC - forum' > > Subject: FW: EN60950 - Internal wiring colours > > > > Thanks for all your replies. In short the answers I have received > > range > > from > > > > - EN60950 will let you use black and white for internal AC line > > wiring > > > > to - HD384 series documents dictate that line and neutral > > must be > > blue and brown > > > > I am left wondering whether the HD384 requirement apply inside > > equipment, or whether the situation is similar to the North American > > one, where the colours specified in the electrical code apply to > > premises wiring but NOT inside equipment (unless called out in an > > equipment standard). > > > > Again my basic question, now slightly longer: Can I, in spite of > > HD384, > > use black and white AC line wiring INSIDE a CE-marked, EN60950 piece > > of > > equipment??? > > > > Thanks again for your help. > > > > 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. > > > > > > > > > > > > > -----Original Message----- > > > From: WOODS, RICHARD [SMTP:[email protected]] > > > Sent: Thursday, July 30, 1998 10:48 AM > > > To: [email protected]; [email protected]; > > > '[email protected]' > > > Subject: RE: EN60950 - Internal wiring colours > > > > > > The ac wiring color codes for the EU are specified in the HD 384 > > > series > > > which are based upon the IEC 60364 series.. The HD series has been > > > compiled > > > in one single BSI standard, BS 7671:1992/A1:1994/A2:1997. The > color > > > scheme > > > is specified in Chapter 51. > > > > > > Richard Woods > > > Sensormatic Electronics > > > [email protected] > > > Views expressed by the author do not necessarily represent those > of > > > Sensormatic. > > > > > > > > > > ---------- > > > > From: [email protected][SMTP:[email protected]] > > > > Reply To: [email protected] > > > > Sent: Thursday, July 30, 1998 8:52 AM > > > > To: [email protected]; [email protected] > > > > Subject: Re: EN60950 - Internal wiring colours > > > > > > > > Jim, > > > > > > > > You are correct in that IEC950/EN60950/etc. does not specify > > > primary > > > > wiring > > > > color schemes, but only the earth conductor(s). Actually, > UL1950 > > > does not > > > > > > > > specify black/white either. That is accomplished in the NEC. > > > > > > > > Conversely in the international markets, I believe the > blue/brown > > > color > > > > scheme > > > > is described in HD-21, HD-22 or IEC227(IEC950 Annex P). I don't > > > have > > > > those > > > > documents so I can't be sure. > > > > > > > > Anyone out there who has access to these documents or knows > > > specifically > > > > where > > > > this blue/brown color scheme is specified, please shed some > light > > > on > > > > this. > > > > > > > > Comments would be appreciated. > > > > > > > > Best regards, > > > > Ron Pickard > > > > [email protected] > > > > > > > > > > > > ______________________________ Reply Separator > > > > _________________________________ > > > > Subject: EN60950 - Internal wiring colours > > > > Author: Jim Eichner <[email protected]> at INTERNET > > > > Date: 7/29/98 5:06 PM > > > > > > > > > > > > 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. > > > > > > > > > > > > > > > > > > > > > >
