In revising and renumbering EN50091-1-1 to EN62040-1-1, a change seems to have occurred that may not have been intentional. If anyone can shed any light on this I'd appreciate it!
EN50091-1-1: Refers to EN60950:1992 +A1+A2 for most of its requirements. In particular, for wiring compartments, EN50091-1-1 calls out EN60950 clauses 3.2.2 through 3.2.8, the last of which contains requirements for wiring space for permanent connections (sufficient space to allow conductors to be introduced, designed to permit inspection of wiring, etc.). EN62040-1-1: Refers to EN60950-1 (latest and greatest), in particular clauses 3.2.2 through 3.2.8. However in EN60950-1 there is a clause 3.2.9 (lines up with the old 3.2.8 discussed above) which is NOT called out as a requirement by EN62040-1-1. Is this intentional, or an error of omission? Here's the real question: Does an EN62040-1-1 product require a wiring compartment at all? With 3.2.9 omitted, there is nothing referenced that requires a wiring space with a cover. You could (why you would is a different matter, but you could...) interpret the standard as allowing wiring to come up to the product, be secured in a cable clamp (or conduit secured in a knockout) and then the final connections made outside the main enclosure. As long as connector types met all the requirements for prevention of access to live parts (etc) such a scheme would seem to be acceptable. Or 3.2.9 was meant to be included and was left out by mistake. Thanks in advance for any light anyone can shed on this. Jim Eichner, P.Eng. Compliance Engineering Manager Xantrex Technology Inc. e-mail: jim.eich...@xantrex.com web: www.xantrex.com Any opinions expressed are those of my invisible friend, who really exists. Honest. No really. Confidentiality Notice: This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
