Isn't there a difference between auto-switching and auto-ranging? Gary
From: Ron Pickard [mailto:rpick...@equinoxpayments.com] Sent: Tuesday, July 03, 2012 1:49 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Interview Questions Hi Scott, That's not always the case. I've had experience with auto-ranging 120/240V products where no voltage selector switch was needed. Best regards, Ron From: Aldous, Scott [mailto:scott.ald...@aei.com] Sent: Tuesday, July 03, 2012 12:59 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Interview Questions I believe Nick may be fishing for the answer - a voltage selector switch. Back to the original question... Of course, an interview is much better for assessing this type of knowledge, but if you have to have questions on an application where candidates fill it out from home, you could ask questions based on personal experience, such as "describe an experience you have had where you solved an issue with creepage distance and how you did it" or something like that. People could always just lie and make something up, but it should be pretty easy to tell if someone has no idea what they're talking about. Much harder to Google this type of specific problem and solution, I would think. Scott Aldous Compliance Engineer AE Solar Energy +1.970.492.2065 Direct +1.970.407.5872 Fax +1.541.312.3832 Main scott.ald...@aei.com<mailto:scott.ald...@aei.com> 1625 Sharp Point Drive Fort Collins, CO 80525 www.advanced-energy.com/solarenergy<http://www.advanced-energy.com/solarenergy> From: emc-p...@ieee.org<mailto:emc-p...@ieee.org> [mailto:emc-p...@ieee.org]<mailto:[mailto:emc-p...@ieee.org]> On Behalf Of IBM Ken Sent: Tuesday, July 03, 2012 1:43 PM To: Nick Williams Cc: Kevin Robinson; EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: Interview Questions Not sure this is what you are looking for; but the 110-230V unit is rated as a range, so the tolerance would be below 110 and above 230. The 110/230 V has two distinct rating ranges, so the tolerances would be above and below 110 AND above and below 230VAC. That's the first thing that pops into mind, anyway. PS: Who operates at 110VAC 50Hz? On Tue, Jul 3, 2012 at 3:21 PM, Nick Williams <nick.willi...@conformance.co.uk<mailto:nick.willi...@conformance.co.uk>> wrote: This has the makings of an extremely esoteric pub quiz, if we're not careful! Here is one, adapted from a phone enquiry I dealt with this morning this morning: You have two appliances. One is marked "110 - 230V ~50Hz" and the other is marked "110/230V ~50Hz". What do you look for on one which is missing from the other? I'll let the group answer. Nick. On 3 Jul 2012, at 19:38, Kevin Robinson wrote: Hello All, I have recently been tasked with writing a set of questions that job candidates would need to answer at the same time they apply for a position requiring knowledge of product safety evaluation, testing and practices. These questions would serve as an automated pre screening mechanism. Questions like "What does the term creepage distance mean?" would be perfect , however the challenge that I am facing is finding questions that the answers are not easily found using Google. If anyone has any product safety related questions that they would not mind sharing, I would greatly appreciate it. Kevin Robinson - ---------------------------------------------------------------- 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 <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald: <dhe...@gmail.com<mailto:dhe...@gmail.com>> Nick Williams Director Direct line: +44 1298 873811<tel:%2B44%201298%20873811> Mobile: +44 7702 995135<tel:%2B44%207702%20995135> email: nick.willi...@conformance.co.uk<mailto:nick.willi...@conformance.co.uk> ----- Conformance Ltd - Product safety, approvals and CE-marking consultants The Old Methodist Chapel, Great Hucklow, Buxton, SK17 8RG England Tel. +44 1298 873800<tel:%2B44%201298%20873800>, Fax. +44 1298 873801<tel:%2B44%201298%20873801>, www.conformance.co.uk<http://www.conformance.co.uk/> Registered in England, Company No. 3478646 - ---------------------------------------------------------------- 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 <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> - ---------------------------------------------------------------- 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 <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> 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 <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> - ---------------------------------------------------------------- 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 <emc-p...@ieee.org<mailto:emc-p...@ieee.org>> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net<mailto:emcp...@radiusnorth.net>> Mike Cantwell <mcantw...@ieee.org<mailto:mcantw...@ieee.org>> For policy questions, send mail to: Jim Bacher <j.bac...@ieee.org<mailto:j.bac...@ieee.org>> David Heald <dhe...@gmail.com<mailto:dhe...@gmail.com>> - ---------------------------------------------------------------- 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 <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. 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 <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
