I'm not aware of any limits for lamp dimmers but I'm not an expert in that area either. I do know that dimmers tend to have very poor repeatability, even within the same brand. Although this would appear to be a susceptibility problem, I have seen many instances where changing the dimmer solved the immediate problem. I have also seen where flipping the plug over (if it is not polarized) solved problem.
If the above doesn't work I would take a look at the iron control circuit. Fred Townsend DC to Light -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Powell, Doug Sent: Sunday, March 20, 2011 9:11 PM 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]>
