We use En 50021 for our Class 1 Zone 2 compliance. In the preliminary version, the creepage and clearences were equal to the UL standards UL 840 and UL 508. When the EN version was adopted, the creepage and clearences for pollution degree 2 were eliminated, what luck thats the spacings that we use. Does any one have any idea why the distances for pollution degree 2 were eliminated. I asked UL and they do not seem to know.
Thanks Jim Sotherden Agency Coordinator/Test Engineer Technology Compliance Team GE Fanuc 804-978-.6224 804-978-5588 fax ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
