I sometimes wonder when my digitally controlled oven will turn itself one day when we're out. I also often wonder whether a range really needs digital control. _______________________________________ _____________________________________________
Ralph McDiarmid | Schneider Electric | Renewable Energies Business | CANADA | Regulatory Engineer From: "Powell, Doug" <[email protected]> To: [email protected] List-Post: [email protected] Date: 03/21/2011 07:56 AM Subject: Re: [PSES] Lamp dimmer interference ________________________________ I received some very good suggestions and there has been some interesting discussion. >From the engineering curiosity standpoint, I plan to find some time to take a portable analyzer and probe set to see exactly what is happening. I will then do what is necessary; ferrite clamp on, extra capacitors, new switch, etc. On the question of leaving it plugged in, I would venture to guess that the large majority of households, do exactly this. Flatirons, coffee makers, television, toaster, electronically controlled ranges, washer, dryer, etc. My guess is this behavior is also not specific to North America. I will do some research on the CPSC as well. Thanks, -doug -----Original Message----- From: [email protected] [mailto:[email protected] <mailto:[email protected]> ] On Behalf Of Powell, Doug Sent: Sunday, March 20, 2011 10:11 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/ http://product-compliance.oc.ieee.org/> Graphics (in well-used formats), large files, etc. can be posted to that URL. 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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/ 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/ <http://www.ieee-pses.org/> Instructions: http://listserv.ieee.org/request/user-guide.html <http://listserv.ieee.org/request/user-guide.html> List rules: http://www.ieee-pses.org/listrules.html <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 email has been scanned by the MessageLabs Email Security System. ______________________________________________________________________ - ---------------------------------------------------------------- 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]>
