Brian, I guess at the end of the day, for right or wrong, the manufacturer/client calls the tune. The lab or consultant can advise the client on the right and correct course of action but not force then to take it. You just have to make sure you have explicit instructions from the client.
As a different example, I know a mobile device manufacturer who declares their products as being for Portable Use only in the context the EN 301 489 series of EMC standards for wireless equipment. Thereby 'excusing' themselves from any mains and DC power port conducted emissions and immunity tests. Even though these units are supplied with a wall-wart UK or EU mains charger and can indeed be used by the end user while plugged in and charging, for playing games or browsing the Internet for example. An innovative way of saving a little time and money. T ----- Original Message ----- From: Kunde, Brian Sent: 02/18/14 07:21 PM To: [email protected] Subject: Re: [PSES] EN 61326-1:2006 Immunity Testing with Multiple Power Cords I’m assuming the goal of your customer is to save a few bucks on the testing. This is where you turn on the Used Car Salesmen mode (no offence) and offer them a onetime deal they cannot resist to test all AC Mains ports separately as it should be done. They feel like they got a good deal and you tested the product they way you feel most comfortable. Once the precedence has been set, they will test all ports separately in future visits. On the other hand, I often get customers who come in wanting to test 100 different modes and configurations. Once they figure out how much time that will take, they look for shortcuts in our testing procedures to speed things up. Then six months later they call you wondering why your test report seems incomplete for those tests. Don’t let them push you. Take the time to perform and document the test the way you ran it each time. If they only want to look at one frequency, fine, but take the time to properly document it. Then you don’t have to try to explain it later. The Other Brian From: Larry K. Stillings [mailto:[email protected]] *Sent:* Tuesday, February 18, 2014 12:23 PM *To:* [email protected] *Subject:* [PSES] EN 61326-1:2006 Immunity Testing with Multiple Power Cords All, I have a customer whom makes a piece of laboratory equipment that consists of 4 parts, each part having its own power supply. The customer would like to claim that they sell a power strip with the system, and all four power cords plug into the strip and therefore only one set of power cord tests needs to be performed for Immunity. For Emissions it is clear per EN 55011 that each power cord must be tested for conducted emissions, for Immunity it gets a little less clear. Should each power cord be tested individually for EFT, Surge, CRFI and VDI, or can I use the customer supplied power strip and perform the testing once. Any guidance or references to clauses in standards is greatly appreciated. Larry K. Stillings Compliance Worldwide, Inc. Test Locally, Sell Globally and Launch Your Products Around the World! FCC - Wireless - Telecom - CE Marking - International Approvals - Product Safety 357 Main Street Sandown, NH 03873 (603) 887 3903 Fax 887-6445 http://www.complianceworldwide.com Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such case, you should destroy this message and kindly notify the sender by reply email. Please advise immediately if you or your employer do not consent to Internet email for messages of this kind. Opinions, conclusions and other information in this message that do not relate to the official business of my firm shall be understood as neither given nor endorsed by it. - ---------------------------------------------------------------- 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://www.ieee-pses.org/emc-pstc.html 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/ 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://www.ieee-pses.org/list.html (including how to unsubscribe) http://www.ieee-pses.org/list.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] > ----------------------------------------------------------------- *LECO Corporation Notice:* This communication may contain confidential information intended for the named recipient(s) only. If you received this by mistake, please destroy it and notify us of the error. Thank you. - ---------------------------------------------------------------- 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://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://www.ieee-pses.org/list.html (including how to unsubscribe) http://www.ieee-pses.org/list.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://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://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
