RE: Open Frame EMI Filters
Go ahead and put it on the pwb. We do it anf it works very well. There is a caveat though - pay a lot of attention to the layout and final installation. -Original Message- From: POWELL, DOUG [mailto:doug.pow...@aei.com] Sent: Wednesday, December 08, 1999 10:16 AM To: EMC-PSTC (E-mail); Treg Listserv (E-mail) Subject: Open Frame EMI Filters Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: Open Frame EMI Filters
Hi Doug! Ignoring the EMC questions (as I can safely do, being a product safety division engineer at TUV!) the enclosure of the open frame supply would have to meet the same safety requirements as any other enclosure around a hazardous voltage circuit. The creepage and clearance distances between the exposed hazardous voltage components and the accessible surfaces in finished product would have to be adaquate. Of course, if you are just producing the filter that is not your concern! Regards, Frank West Sr. Engineer TUV Rheinland NA --- POWELL, DOUG doug.pow...@aei.com wrote: Hello once again, I have already received a number of replies to my query indicating that the metallic enclosure is required for low inductance coupling to the components or to prevent radiation between circuits within the product. This is not my question. Please remember that one of the criteria that I described for the open frame is the passing all applicable EMC tests. This means that the open-frame design that I propose meets both radiated and conducted emissions levels, without the metallic box. My questions deals more with why is the enclosure required if product passes the tests without it. In the past I have designed a few products with a simple PCB for emissions control. I compensated for the internal re-radiation problem. Recently I heard of a commercial EMI Filter company that says the enclosure is required and that the encapsulant is a requirement. I disagree. -doug === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com http://www.advanced-energy.com === Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). = Frank West Senior Engineer TUV Rheinland of North America NW/Portland OR Office __ Do You Yahoo!? Thousands of Stores. Millions of Products. All in one place. Yahoo! Shopping: http://shopping.yahoo.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com,
Re: Open Frame EMI Filters
Doug: It would seem logical that the shield will guarantee a high degree of immunity to local radiated fields. If the filter is a commerical one its specs are probably dependent on the shield being in situ. Even though it may meet the EMC test requirement, there is an added degree of safety i.e. equipment malfunction) with the filter in place. If there is line voltage appearing on any of the components and they are in areas used by service people then the question of electrical safety is addressed by having a shield. This is only my opinion. Ralph Cameron EMC Consultant and Suppression of Consumer Electronics (After Sale) - Original Message - From: POWELL, DOUG doug.pow...@aei.com To: emc-p...@majordomo.ieee.org; Treg Listserv (E-mail) t...@world.std.com Sent: Wednesday, December 08, 1999 2:19 PM Subject: RE: Open Frame EMI Filters Hello once again, I have already received a number of replies to my query indicating that the metallic enclosure is required for low inductance coupling to the components or to prevent radiation between circuits within the product. This is not my question. Please remember that one of the criteria that I described for the open frame is the passing all applicable EMC tests. This means that the open-frame design that I propose meets both radiated and conducted emissions levels, without the metallic box. My questions deals more with why is the enclosure required if product passes the tests without it. In the past I have designed a few products with a simple PCB for emissions control. I compensated for the internal re-radiation problem. Recently I heard of a commercial EMI Filter company that says the enclosure is required and that the encapsulant is a requirement. I disagree. -doug === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com http://www.advanced-energy.com === Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list
RE: Open Frame EMI Filters
Hi Jim, This thread takes me 'back to the eighties' (when I first entered the c-a field and was working with UL 478: You are correct with your comments regarding the perceived flammability of line filter caps. The scenerio is/was that live parts are required to be enclosed (in the US, per the NEC and ANSI/UL standards). All can agree to that, I believe. X-caps were (are still?) available both with a flame-rated potting compound and without. Those not meeting requisite flame-ratings for polymeric enclosures were required to be enclosed (which could be accomodated by properly flame-rate barriers, potting, or the outer enclosure of the device in which they were contained). Also, since standards allow the filter-caps to be wired-in prior to the switch and fuse/s, they are continually at risk for equipment that is plugged-in all the time. Regards, Art Michael Int'l Product Safety News A.E. Michael, Editor 166 Congdon St. East P.O. Box 1561 Middletown CT 06457 U.S.A. Phone : (860) 344-1651 Fax: (860) 346-9066 Email : i...@connix.com Website: http://www.safetylink.com ISSN : 1040-7529 -- On Wed, 8 Dec 1999, Jim Eichner wrote: A couple of other thoughts: - Used to be that everyone thought X and Y cap's were hideously fire-hazardous. Perhaps the UL and CSA standards for line filters require a can (ie fire enclosure) around them, even if they are approved and even if the filter goes inside the outer (equipment) enclosure. - Potting will allow you to meet reduced creepage and clearance that may be crucial in obtaining decent high frequency attenuation from the filter. Regards, Jim Eichner Senior Regulatory Compliance Engineer Statpower Technologies Corporation jeich...@statpower.com http://www.statpower.com Any opinions expressed are those of my invisible friend, who really exists. Honest. -Original Message- From: POWELL, DOUG [SMTP:doug.pow...@aei.com] Sent: Wednesday, December 08, 1999 2:20 PM To: emc-p...@majordomo.ieee.org; Treg Listserv (E-mail) Subject:RE: Open Frame EMI Filters Hello once again, I have already received a number of replies to my query indicating that the metallic enclosure is required for low inductance coupling to the components or to prevent radiation between circuits within the product. This is not my question. Please remember that one of the criteria that I described for the open frame is the passing all applicable EMC tests. This means that the open-frame design that I propose meets both radiated and conducted emissions levels, without the metallic box. My questions deals more with why is the enclosure required if product passes the tests without it. In the past I have designed a few products with a simple PCB for emissions control. I compensated for the internal re-radiation problem. Recently I heard of a commercial EMI Filter company that says the enclosure is required and that the encapsulant is a requirement. I disagree. -doug === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com http://www.advanced-energy.com === Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com
RE: Open Frame EMI Filters
You do not need a metal case for an EMI filter. It is perfectly acceptable to put a pair of Y capacitors, a common mode choke and an X cap on a circuit board to form a basic line filter. (Be careful; if you use Y1 capacitors, a single capacitor may be used between line and earth. If you use Y2 or Y4 capacitors, you must use two capacitors in series.) The main reason for a metal case is to prevent radiated coupling of noise from one side of the filter to the other. If you have a metal enclosure, use a metal encased bulkhead filter. This is the best situation because it will provide a high level of EMI suppression. If your product is in a non-metallic enclosure, the filter case has less of an effect. Just make sure that the filter is as close to the power entry as possible. If you have a lot of unfiltered power lines around the electronics, noise can radiate around the filter causing problems with conducted emissions. Conversely, noise on the power lines can radiate around the filter and cause problems with susceptibility. The filter will still help, but it will not be as effective as a bulkhead filter with a metal enclosure. Ted Eckert Regulatory Compliance Engineer American Power Conversion The items contained in this e-mail reflect the personal opinions of the writer and are only provided for the assistance of the reader. The writer is not speaking in an official capacity for APC nor representing APC’s official position on any matter. Please respond to POWELL, DOUG doug.pow...@aei.com To: emc-p...@majordomo.ieee.org, Treg Listserv (E-mail) t...@world.std.com cc:(bcc: Ted Eckert/SDD/NAM/APCC) From: POWELL, DOUG doug.pow...@aei.com on 12/08/99 04:19 PM Subject: RE: Open Frame EMI Filters Hello once again, I have already received a number of replies to my query indicating that the metallic enclosure is required for low inductance coupling to the components or to prevent radiation between circuits within the product. This is not my question. Please remember that one of the criteria that I described for the open frame is the passing all applicable EMC tests. This means that the open-frame design that I propose meets both radiated and conducted emissions levels, without the metallic box. My questions deals more with why is the enclosure required if product passes the tests without it. In the past I have designed a few products with a simple PCB for emissions control. I compensated for the internal re-radiation problem. Recently I heard of a commercial EMI Filter company that says the enclosure is required and that the encapsulant is a requirement. I disagree. -doug === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com http://www.advanced-energy.com === Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail
RE: Open Frame EMI Filters
Hello once again, I have already received a number of replies to my query indicating that the metallic enclosure is required for low inductance coupling to the components or to prevent radiation between circuits within the product. This is not my question. Please remember that one of the criteria that I described for the open frame is the passing all applicable EMC tests. This means that the open-frame design that I propose meets both radiated and conducted emissions levels, without the metallic box. My questions deals more with why is the enclosure required if product passes the tests without it. In the past I have designed a few products with a simple PCB for emissions control. I compensated for the internal re-radiation problem. Recently I heard of a commercial EMI Filter company that says the enclosure is required and that the encapsulant is a requirement. I disagree. -doug === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com http://www.advanced-energy.com === Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Open Frame EMI Filters
Hello Doug, I think the enclosure of EMI filters is necessary. The enclosure (normally metallic and, if the filter should work well, connected to ground) prevents, that for example by radiation, disturbing signals could get into your filtered equipment. The filter would be bypassed. Regards Ludger Revermann -Ursprüngliche Nachricht- Von: POWELL, DOUG doug.pow...@aei.com An: EMC-PSTC (E-mail) emc-p...@ieee.org; Treg Listserv (E-mail) t...@world.std.com Gesendet: Mittwoch, 8. Dezember 1999 18:16 Betreff: Open Frame EMI Filters Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: Open Frame EMI Filters
Doug, We have a piece of I.T.E. equipment that we designed that has dual power supplies with an EMI filter on the AC input of both supplies. We designed our own filters for this particular unit. They are simply small through-hole PC Boards (about 1 x 4) with the components (inductors and capacitors) mounted on the boards. They have male faston connectors at each end of the board for attaching the wires for the AC in from the IEC connector and AC out to the supplies. These are mounted to standoffs in the unit via screws. There is no cover over or around these filter boards other than the top cover of the equipment. So the only way to access them is to take the cover off of the unit. This unit has undergone safety certification at TÜV Product Service to EN60950. The unit has also passed all of the required EMC tests for CE Marking. The open frame filter boards did not cause any problems at either test lab. Kurt Andrews Compliance Engineer Tracewell Systems, Inc. 567 Enterprise Dr. Westerville, OH 43081 Ph. 614-846-6175 Fax 614-846-7791 Email: kandr...@tracewell.com -Original Message- From: POWELL, DOUG [SMTP:doug.pow...@aei.com] Sent: Wednesday, December 08, 1999 12:16 PM To: EMC-PSTC (E-mail); Treg Listserv (E-mail) Subject:Open Frame EMI Filters Hello group, For years I have used off-the-shelf and custom EMI filters with a fully enclosed metal canister. Why is this enclosure required? Are there specific provisions in the standards? My idea is to build up the filter circuit on a printed circuit board and make it an integral part of the power supply. I am currently looking at EN133200 which has certain seal tests but after reviewing these, they all appear to be related to climatic or environmental conditions. If the product passes these tests without the enclosure it would seem that the product has passed, period. Alternatively I have considered removing the nomenclature EMI filter and simply call it an input module, then evaluate it as a part of the overall system. If it passes the EMC and Product Safety requirements, can I call the job complete? Any thoughts? === Douglas E. Powell Regulatory Compliance Engineer Advanced Energy Industries, Inc. 1625 Sharp Point Dr. Fort Collins, Colorado 80525 USA m/s: 2018 --- 970-407-6410 (phone) 970-407-5410 (e-fax) 800-446-9167 (toll-free) mailto:doug.pow...@aei.com mailto:doug.pow...@aei.com http://www.advanced-energy.com http://www.advanced-energy.com === - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
