Re: Manufacturing Hipot Testing
I read in !emc-pstc that Doug McKean wrote (in <001001c12a54$2b315f80$3e3e3...@corp.auspex.com>) about 'Manufacturing Hipot Testing', on Tue, 21 Aug 2001: >IMHO, if I were to address the initial question regarding >manufactoring >testing of a product bound for Europe - unless there were some severe >national deviation differences from a similar type of US domestic >approval >of the product, I'd continue along with hi-pot testing just as if the >product >were bound for a domestic (US) market. Well, you have come to the right conclusion but for two wrong reasons. In Europe, there are no longer any 'national approvals' like the old SEMKO etc. There is ONLY the Low Voltage Directive, and the European Standards (ENs) that have been 'notified' in the Official Journal as providing evidence of compliance. However, most if not all of these ENs have *mandatory requirements* for 100% production-line testing (confusingly called 'routine testing'), including a 'hi-pot' test. It is entirely the responsibility of the manufacturer to ensure that the Declaration of Conformity for the product is true, and to do that he MAY, but does not have to, employ a test-house to produce a report and maybe an expensive certificate and grant permission, in return for more money, to apply a glamorous sticker to the product. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: CB Certificates for Apple Macintosh Computers
I read in !emc-pstc that Peter Merguerian wrote (in <2D1037012914D4118DB8204C4F4F50202D5CE9@ITLLTD01>) about 'CB Certificates for Apple Macintosh Computers', on Tue, 21 Aug 2001: >I am hopeful that one of you holds the CB Test Certificates and/or reports >for the following Apple Macintosh computers: > >1. 733 Mhz Power Mac G4 > >2. 867 Mhz Power Mac G4 > >3. Dual 800 MHz Power Mac G4 > You really should ask Apple for these, especially Apple, who, IMHO, are rather meticulous about formal procedures. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Infineon contact
Peter, Here is the contact information for the person who provided me with my Infineon regulatory docs. Sue Dube Infineon Technologies Corporation Customer Marketing - Fiber Optics 978-692-3218 suzanne.d...@infineon.com Thx, Joe -Original Message- From: Peter Tarver [mailto:peter.tar...@sanmina.com] Sent: Tuesday, August 21, 2001 12:02 PM To: emc-p...@majordomo.ieee.org Subject: Infineon contact Someone ... anyone ... I am looking for a contact within Infineon (formerly Siemens) who is responsible for their optical transceivers. I have been dealing with staff at their local sales agents and they have proven incapable of providing me with a UL Recognition report. Can anyone help? Regards, Peter L. Tarver, PE Product Safety Manager Sanmina Homologation Services peter.tar...@sanmina.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Infineon contact
Peter, Try UL's Certifications Directory. You can search by Company Location or File Number . . . http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm John Juhasz Fiber Options Bohemia, NY -Original Message- From: Peter Tarver [mailto:peter.tar...@sanmina.com] Sent: Tuesday, August 21, 2001 12:02 PM To: emc-p...@majordomo.ieee.org Subject: Infineon contact Someone ... anyone ... I am looking for a contact within Infineon (formerly Siemens) who is responsible for their optical transceivers. I have been dealing with staff at their local sales agents and they have proven incapable of providing me with a UL Recognition report. Can anyone help? Regards, Peter L. Tarver, PE Product Safety Manager Sanmina Homologation Services peter.tar...@sanmina.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Conductive Coatings
John, I refuse to say "in another life" because I have only one life to go through and learn through, taking credit for my successes and accepting responsibility for my learning opportunities. (to me it's a Dilbert "pointy haired manager" phrase(of course so is "learning opportunity" instead of mistake) (sorry for the soapbox) BUT I have had the opportunity to investigate both conductive materials (composites) and conductive coatings. We decided to use conductive coatings on a computer system for a medical imaging system. The product was mature and only limited units were expected to be sold. We did replace some of the panels with metal ones (at a cost savings even over the unplated plastic! management liked that). A sprayed on copper paint was applied to the plastic parts. It worked very well! At the joints, soft gaskets (conductive fabric covered foam) were used (e.g. Schlegel (spelling?)). This reduced wear (assembly / disassembly) concerns. The unit went from being a "comb generator" to compliant. Adequate application of the coating was achieved. Vacuum deposition was considered but was too expensive and may have had problems with the cavities in the existing plastic parts. For the fairly small quantity of parts, this worked quite well. IF we were starting a project and could design the plastic parts with a particular process in mind, other processes (e.g. plating) might be a better choice. Refer to other comments on safety aspects. I have seen problems with coatings flaking off. Also note my experience occurred ~ 5 years ago. Seems recent to me but there may have been many improvements in the field since then. Good luck! Daren A. Nerad EMC Engineer 815.226.6123 -Original Message- From: John Juhasz [mailto:jjuh...@fiberoptions.com] Sent: Monday, August 20, 2001 1:30 PM To: 'emc-p...@ieee.org' Subject: Conductive Coatings Greetings . . . Beginning to consider conductive coatings for EMC shielding. To be used inside a plastic cover (material as yet unknown) in a low power/voltage (SELV) application. This is unfamiliar territory. I'm sure someone on this listserv has experience with these. I know to at least consider shielding effectiveness, material compatibility (plastic housing material to coating), and end-user environment. What are some other critical criteria? Thanks. John A. Juhasz Product Qualification & Compliance Engineer Fiber Options, Inc. 80 Orville Dr. Suite 102 Bohemia, NY 11716 USA Tel: 631-419-2324 (direct) Fax: 631-567-8322 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall," --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Infineon contact
Someone ... anyone ... I am looking for a contact within Infineon (formerly Siemens) who is responsible for their optical transceivers. I have been dealing with staff at their local sales agents and they have proven incapable of providing me with a UL Recognition report. Can anyone help? Regards, Peter L. Tarver, PE Product Safety Manager Sanmina Homologation Services peter.tar...@sanmina.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Announcing a SI TC within the EMC Society
Hello, I am very pleased advise you of a new Technical Committee that has been formed within the EMC Society. The Committee is: TC-10 Signal Integrity. The Mission Statement as approved by the BoD is as follows: This committee is concerned with the design, analysis, simulation, modeling, and measurement techniques useful in maintaining the quality and integrity of electrical signals. These activities encompass all aspects of signal integrity from the integrated circuit level to system level. Somehow, (I think I left the room :-0)during the proceedings I was elected Chair of this new TC. Franz Gisin (Sanmina) is the Vice-Chair. Activities: The Committe will be sponsoring a Workshop on Signal Integrity in next years EMC Society Conference. Furthur we will hold a special session within the body of the conference if enough papers are submitted and accepted with Signal Integrity content. It is not too late to submit a summary of a paper for consideration and we invite anyone with something to say to participate. With your help, we look forward to promoting the SI disipline within the EMC community. Thank you Charles Grasso IEEE EMCS TC-10 Chair --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Manufacturing Hipot Testing
The following is strictly opinion ... I may be sticking my neck way out here, but it is my understanding that any required manufacturing hi-pot test, with regard to UL-1950, is contractual between the mfr of said device and the testing NRTL. To my knowledge, there is no *requirement* within the standard which warrants manufacturing hi-pot test. The standard merely gives a guide if it is so chosen to be done. After testing, the NRTL may submit the mfr to lots of requirements not within the standard. And if one were to read the standard to the letter, there's tons of contractual arrengements not stated in the standard. This is why I have a difficult time explaining to some people the real meaning of the NRTL label when it is applied to the product. It's subtle I know, but the real meaning of the label is not one of "approval', it's really a sign of a "continued contractual arrangement" between you and the NRTL. Some people think of the NRTL label as a sort of medal as one would win in some sporting event. Years after, you may still have the medal but no longer compete. Not so with an NRTL label. If there were no contractual agreement behind it, then upon successful completion of the testing you could apply the label and be done with the NRTL forever. And as such, failure to maintain requirements after testing can result with the label being pulled. In the case of someplace such as Europe, where self-declarartion is used, things can get more severe by having a product pulled. IMHO, if I were to address the initial question regarding manufactoring testing of a product bound for Europe - unless there were some severe national deviation differences from a similar type of US domestic approval of the product, I'd continue along with hi-pot testing just as if the product were bound for a domestic (US) market. Sorry for getting wrapped around the axle about this topic, but that's my 3.1415 cents worth ... - Doug --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Manufacturing Hipot Testing
CORRECTION: ... we do use EN 61010-1 almost ... eric.lif...@ni.com Sent by: To: emc-p...@ieee.org owner-emc-pstc@majordomcc: o.ieee.org Subject: Re: Manufacturing Hipot Testing 08/20/2001 05:14 PM Please respond to eric.lifsey Interesting points. This provoked me to look again into a standard that I've examined but never used, BS EN 50178:1998, Electronic equipment for use in power installations. It covers safety, EMC, and environmental conditions. It is 99 pages long, it's informative Annex A starts on page 72, so more that 25% of the standard is informative. However, we do use EN 61616-1 almost exclusively and have routinely specified hipot testing, and it does't hurt that we also have the explicit encouragement of a 3rd party approval. Back to topic. Our manufacturing people view the hipot test as useful for detecting defects, possibly because the hipot tester and control software are linked into a database which makes operating and tracking the results of this test automatic. I wonder if it wasn't for the software/database linkage that the hipot test might not enjoy as much acceptance by manufacturing. If the hipot test is made easy to set and operate, then it might be considered useful rather than some arcane obligation. Eric Lifsey National Instruments --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
CB Certificates for Apple Macintosh Computers
Hello Group, I am hopeful that one of you holds the CB Test Certificates and/or reports for the following Apple Macintosh computers: 1. 733 Mhz Power Mac G4 2. 867 Mhz Power Mac G4 3. Dual 800 MHz Power Mac G4 If you do, please fax or e-mail a copy. Thanks you in advance, PETER S. MERGUERIAN Technical Director I.T.L. (Product Testing) Ltd. 26 Hacharoshet St., POB 211 Or Yehuda 60251, Israel Tel: + 972-(0)3-5339022 Fax: + 972-(0)3-5339019 Mobile: + 972-(0)54-838175 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Conductive Coatings
Hi John, Read through some other responses. I have had similar experiences to those already mentioned. One thing that I didn't see mentioned was the alternative of electroless plating. Electroless plating consists of three major processes. 1. The plastic parts are cleaned and "etched" by a solvent bath. 2. The plastic parts are then put into a catalyst bath which coats them uniformly with a reaction catalyst. 3. The plastic parts are then put into a plating bath where the catalyst reacts with the bath to plate solid metal onto the parts. There are two sub-steps here. One to plate Copper directly on the plastic; and one to plate Nickel over the Copper (for durability and corrosion resistance). We had product samples put through this process back in 1996. The surface resistivity, uniformity and durability were excellent. Electroless plating gets a uniform coverage of conductive material into corners and small features of the plastic. Our units were a split plastic case with an overlapping center joint. The plating could withstand many mating/unmating cycles without degrading. What was the drawback? We didn't have enough volume to make it cost effective. The process requires masks to be made; and the masks aren't cheap. In short, the per part cost was comparable or even less than conductive spray coating, but the tooling cost was higher (I seem to remember around $6,000). Another drawback is that the coating isn't as good if you need to selectively coat parts (i.e. coat some areas while leaving others bare). At the time, the process was called "Enshield" and it was being marketed by Enthone, New Haven, CT, PHONE: 203-934-8611, FAX: 203-937-1680. Fair warning...these phone numbers are five years old. I don't know if they're still good, you may very well call them and get an answer from Samuri Delicatessen. Chris > -Original Message- > From: John Juhasz [SMTP:jjuh...@fiberoptions.com] > Sent: Monday, August 20, 2001 2:30 PM > To: 'emc-p...@ieee.org' > Subject: Conductive Coatings > > > > Greetings . . . > > Beginning to consider conductive coatings for EMC shielding. > To be used inside a plastic cover (material as yet unknown) in > a low power/voltage (SELV) application. > This is unfamiliar territory. > > I'm sure someone on this listserv has experience with these. > I know to at least consider shielding effectiveness, material > compatibility (plastic housing material to coating), and > end-user environment. What are some other critical criteria? > > Thanks. > > John A. Juhasz > Product Qualification & > Compliance Engineer > > Fiber Options, Inc. > 80 Orville Dr. > Suite 102 > Bohemia, NY 11716 USA > > Tel: 631-419-2324 (direct) > Fax: 631-567-8322 > > > > > --- > This message is from the IEEE EMC Society Product Safety > Technical Committee emc-pstc discussion list. > > Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ > > To cancel your subscription, send mail to: > majord...@ieee.org > with the single line: > unsubscribe emc-pstc > > For help, send mail to the list administrators: > Michael Garretson:pstc_ad...@garretson.org > Dave Healddavehe...@mediaone.net > > For policy questions, send mail to: > Richard Nute: ri...@ieee.org > Jim Bacher: j.bac...@ieee.org > > All emc-pstc postings are archived and searchable on the web at: > http://www.rcic.com/ click on "Virtual Conference Hall," > --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Conductive Coatings
Must worry about fire and electrical enclosure requirments as well. Depending on levels and components inside these 94v rating will vary. Richard, -Original Message- From: Doug McKean [mailto:dmck...@corp.auspex.com] Sent: Monday, August 20, 2001 7:22 PM To: EMC-PSTC Discussion Group Subject: Re: Conductive Coatings John, Yes. I've done it. But the info is dated a little. First, the plastic has to have it's own UL rating. For SELV this might involve V2 min. Not sure about that. Then, the mold house has to have it's own UL approval to do the molding. Then, the conductive coating must have it's own UL approval as an approved material. Then, the marriage of the coating and the coating has to have yet another UL approval. Then, the vendor who does the application of the coating to the plastic has to have yet another UL approval. Depending upon the coating being an oil base or water base, you'll get different ohm readings. The oil will be higher in general. Then, within the types of coating, be it oil or water based, there's differences in ohmage as well. I got nickel which was good for 0.5 ohm with a 7mil layer I believe. You can add more layers to lower the resistance. Silver and copper coating will be lower in resistance for the same thickness. Then, the conductive coating can't be used as a primary ground. Conductive coatings are also good for only one time use essentially. Removing and installing a cover several times with a conductive coating will jeopardize the integrity of the coating. It'll flake or simply wear off. So, it's best to use it with the understanding that once the cover is installed and fit in place, then it stays that way. I had very good results with it. It was getting through the safety aspects that proved difficult. This directly impacts the search effort for a vendor to use up front before you even start using it. Make sure to consult your safety approvals engineer at whatever NRTL you're using to fill you in on all the details specific to safety. Regards, Doug McKean --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall," --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Am1 to CISPR24 in OJ?
The CENELEC web site indicates that ratification is targeted for September and the date of availability is targeted for 2002-01-08. Richard Woods -- From: j...@aol.com [SMTP:j...@aol.com] Sent: Monday, August 20, 2001 8:47 PM To: gelf...@memotec.com; emc-p...@majordomo.ieee.org Subject: Re: Am1 to CISPR24 in OJ? In a message dated 8/20/01, David Gelfand writes: > Having had much difficulty meeting these limits, could you briefly summarize > the changes in Am1? Do they apply also to PSTN lines also? Hi David: I'm out of the office this week, so I don't have the amendment handy. However, as I recall all of the changes were to the limits applied to conducted susceptibility on PSTN lines. The frequency bands were revised so the tables now look a bit different, but the overall effect was to relax the limits in several frequency bands. I still have no word from any other list members about when this amendment is likely to show up in the OJ. Joe Randolph --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall," --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Immunity testing of Headset
Group: Performing RF immunity testing to EN55024 on a telephone, an artificial capacitive hand must be placed around a telephone handset. Does anyone know of if there is a similar requirement when testing a Headset ? Thanks in advance Jon Jones Senior Approvals Engineer Ascom Telecommunications Ltd. --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: ESD test level 4
Also see Telcordia GR-1089. Cortland --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Am1 to CISPR24 in OJ?
In a message dated 8/20/01, David Gelfand writes: > Having had much difficulty meeting these limits, could you briefly summarize > the changes in Am1? Do they apply also to PSTN lines also? Hi David: I'm out of the office this week, so I don't have the amendment handy. However, as I recall all of the changes were to the limits applied to conducted susceptibility on PSTN lines. The frequency bands were revised so the tables now look a bit different, but the overall effect was to relax the limits in several frequency bands. I still have no word from any other list members about when this amendment is likely to show up in the OJ. Joe Randolph --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
