I have been struggling with the requirements for CE mark of a "Protective Relay" product line for both the EMC and LV directives. > Please help me through this maze, I am sure you can get credit to get into heaven if you do. Here are the particulars: > There is a product family standard EN 60255 (supposedly) published 1993. Until recently I thought that a document with EN (not pr EN) and with a publish date was "harmonized". After some discovery effort I have found the concept of a standard being "Harmonized relative to a directive". For the EMC directive I understand this to mean approved by CENELEC and published in the OJ. I assume there is something similar for the LV directive.
Relative to my product family standard, It has an EMC section based upon IEC 255.-22-X (X=1,2,3,4) for EMC immunity constraints. They are based on 801.X documents and add details important for protective relays. Demko, a competent body related to UL, tells me that this family standard is not harmonized relative to the EMC directive and that I should use the Generic EMC standards instead. Sounds good but I need something to stand on. >>>>> What can I use to substantiate this? How can I verify this on my own without subscribing to the OJ? What about the LV directive? >>>>>> So far....... Up on the internet mostly through rcic.com I have found some supporting evidence to this whole idea of a standard being harmonized to a directive and have found several lists stating published dates for EMC and LVD. None of the lists have EN60255 "harmonized" for EMC. However I have found some conflicts relative to the LVD. A NEMA publication (1995) shows EN60255 listed under LVD while I*M has a list for harmonized directives that does not include it. (http://www2.echo.lu/nasd/). My boss and I are hoping to resolve these issues down to a fundamental reference. Does the OJ publish a list for the different directives? Any guidance you may be able to share would be most appreciated!!!! Lost in the CE mark purgatory Chris Wells Sr Design Engineer - Cutler-Hammer
