In the U.S., there are no emissions regulatory "limits" that would apply to a dimmer. This is considered an incidental radiator under FCC Rules and is only subject to the very general clauses that it cannot cause interference to radio communications. Nothing about interference with appliances. And the iron has no immunity standards it must meet for U.S. For Europe, there are emissions limits that apply to dimmers and the iron has both emissions and immunity standards that need to be applied for CE marking.
If the particular model iron you have only works at North American voltages, it may not have been tested for immunity at all, because it's not a regulatory requirement. Jim Hulbert Pitney Bowes -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Powell, Doug Sent: Monday, March 21, 2011 12:11 AM To: '[email protected]' Subject: Lamp dimmer interference I have a situation where a modern clothing iron with digital controls turns on automatically if left plugged into an outlet. Obviously I am concerned about this. This is not very repeatable, but I recently observed this again when operating a dimmer switch that feeds track lighting nearby. While am not certain of the brand of the dimmer switch, am certain of its age. Also, the mains circuit for the lighting is possibly on the same circuit as the clothing iron. My background is mainly in EMC for industrial equipment and I have very little background with household appliances. My thought is to simply replace the old dimmer, but replacing the dimmer may not be conclusive. I am hoping for a quick answer to this question. Does North America have limits for conducted emissions (lighting dimmer) and for conducted immunity (clothing iron) in residential? Thanks, -doug This message, including any attachments, may contain information that is confidential and proprietary information of Advanced Energy Industries, Inc. The dissemination, distribution, use or copying of this message or any of its attachments is strictly prohibited without the express written consent of Advanced Energy Industries, Inc. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <[email protected]> All emc-pstc postings are archived and searchable on the web at: http://product-compliance.oc.ieee.org/ Graphics (in well-used formats), large files, etc. can be posted to that URL. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
