Hello Charlie: Thanks for the input!
We have been doing as you suggested on our universal input type devices (95-260 vac). This works out fine because in USA the 120 vac Phase conductor is connected to Brown and Neutral to Light blue and , as I understand things,in Europe the HOT/Phase conductor is connected likewise Hot to Brown (220-240 vac)and Neutral to Blue. However we are entering into another product line that here in the USA the device requires 208-240 vac. The Device does not ' require ' Neutral and will have two phase (HOT) wires connected to the input in the USA. This makes me hesitant to use blue and my knowledge of Europe wire colors make me indecisive as to sending units with two black wires (USA HOT ) as input. The suggestion from Lauren Crane, Eaton Semiconductor, (see end of this message) seems logical. By extension we may label the Black wires with `H' in an effort to ` harmonize ' things. In addition to installation instructions. See also comments from Chris Dupres appended to end of this message. Thanks again for your input and any further comments or advise is welcome. Terry > From: [email protected] > Date: Thu, 22 Aug 1996 15:14:53 -0400 > To: [email protected] > Subject: Re: Wire Color code standard? > Hi Terry, > > A couple of comments regarding your color choices - > > 1. There are no color code requirements from UL1950, EN60950, etc. > inside the product, with the exception of the protective earth, > which must be green/yellow. Also, this color cannot be used for any > other purpose. > > 2. With the choice that you are making to use color codes, I > suggest that you use brown, blue, green/yellow only, so you do not > have to have a International and a Domestic construction. This > color code is acceptable worldwide including the USA and Canada. It > is in the National Electrical Code. > > Regards, > Charlie Bayhi > [email protected] ----------------------------------------------------------- From: [email protected] Date sent: Thu, 22 Aug 96 15:29:34 CST To: [email protected] Subject: Wire Color code standard? Terry, I haven't checked all the colors in your message, but I have some experience with this issue. I am also leading an effort to come up with a common color code for our controllers. Here's a few ideas. Maybe we can exchange some more. I agree with your stand on 60950. I've only found prescriptions for the protective conductor. For Europe, check also IEC 446 Identification of Conductors by Colours or Numerals. RE:Neutrals....keep in mind that 204, 60204 etc.. say that "IF A NEUTRAL CONDUCTOR IS IDENTIFIED BY COLOUR, IT MUST BE LIGHT BLUE" This allows that other methods may be used to identify the conductor. Indeed, older versions of 204 explicitly say "MARKING AND POSITION" may also be used. The direction I am advocating in our company is to use white wires with an "N" at each end. In this way we are identifying the neutral by marking, which is acceptable to the Euro standards. Regards, Lauren Crane Senior Engineer Eaton Semiconductor Equipment Operations 10000 Spectrum Drive Austin, Texas 78717 e-mail:[email protected] Best regards, Terry J. Meck Senior QA/Test Engineer 215-721-5280 [email protected] Accu-Sort Systems Inc. Telford, Pa USA
