The following is strictly opinion ... I may be sticking my neck way out here, but it is my understanding that any required manufacturing hi-pot test, with regard to UL-1950, is contractual between the mfr of said device and the testing NRTL. To my knowledge, there is no *requirement* within the standard which warrants manufacturing hi-pot test. The standard merely gives a guide if it is so chosen to be done.
After testing, the NRTL may submit the mfr to lots of requirements not within the standard. And if one were to read the standard to the letter, there's tons of contractual arrengements not stated in the standard. This is why I have a difficult time explaining to some people the real meaning of the NRTL label when it is applied to the product. It's subtle I know, but the real meaning of the label is not one of "approval', it's really a sign of a "continued contractual arrangement" between you and the NRTL. Some people think of the NRTL label as a sort of medal as one would win in some sporting event. Years after, you may still have the medal but no longer compete. Not so with an NRTL label. If there were no contractual agreement behind it, then upon successful completion of the testing you could apply the label and be done with the NRTL forever. And as such, failure to maintain requirements after testing can result with the label being pulled. In the case of someplace such as Europe, where self-declarartion is used, things can get more severe by having a product pulled. IMHO, if I were to address the initial question regarding manufactoring testing of a product bound for Europe - unless there were some severe national deviation differences from a similar type of US domestic approval of the product, I'd continue along with hi-pot testing just as if the product were bound for a domestic (US) market. Sorry for getting wrapped around the axle about this topic, but that's my 3.1415 cents worth ... - Doug ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
