Re: Calibration of test equipment
One method I have seen used is to have a reference instrument calibrated and then immediately use that instrument to calibrate/verify other instruments of it's type in house. After that process, the reference is placed back into standard duty until the next cal cycle. This way, at the time of calibration, the reference had not been used for any purpose other than calibration. Regards, Brent DeWitt CONFIDENTIALITY NOTICE This e-mail communication may contain information that is proprietary, confidential and/or privileged from disclosure under applicable law. The information is intended to be for the use of the addressee only. If the reader of this e-mail is not the intended recipient, you are hereby notified that use, copying, dissemination or continued possession of this communication is strictly prohibited. If you have any reason to believe you are not the intended recipient of this e-mail, please delete all copies of this e-mail from computer memory or storage. Thank you. --- 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,
Re: Harmonics -- WSJ opinion.
Hi John: I must admit to several motives for posting my message regarding the WSJ-E opinion article. 1. I wanted our subscribers to know that the issue rated comment in the WSJ-E, a high- level, respected newspaper. 2. I wanted our subscribers to know that the technical arguments are bolstered by some political arguments. As for knowing that my posting would generate further discussion... well, that is up to our subscribers and whether they want to move from the technical arena to the political arena! As for your request for comment... But the comment is 'non-technical' . . . can anyone in this forum offer any 'technical' arguments that would a)Back-up such a statement as Mr. Hunter's or b) FAVOR the harmonic standard? With respect to your first question (a) I believe you refer to Hunter's assertion that the European electricity distributors benefit from the standard. I don't know that this statement is subject to a technical argument. With respect to your second question (b), the technical argument in favor of the standard is that triplen harmonic currents cause overheating of the primary of a delta-wye distribution transformer. Therefore, some means must be provided to prevent such overheating. There are several mechanisms for preventing such overheating: 1. Use a distribution transformer with a k- factor rating. 2. Use a trap (zig-zag transformer) between the transformer and the load. 3. Require linear loads. There may be other mechanisms. There is no technical argument for any one of the several mechanisms that prevent distribution transformer overheating. Each works. Pick one. It is probably best to kill the problem at its source. On the other hand, it is likewise probably best if the electricity supplier can supply power to any load rather than restrict the loads to which he is willing to supply power. Because all work, the choice is subject to other criteria. One major criterion is that of cost: If you are an electricity supplier, you would not be in favor of choices 1 and 2. If you are a product manufacturer, you would not be in favor of choice 3. If you are a consumer, you will pay for choices 1 and 2 through higher electric bills, and you will pay for choice 3 through higher product cost. No matter the choice, you pay forever, either through higher electric bills or for higher product costs. If you buy lots of products on a continuing basis, your cost may be higher than your long-term electric bills. Of course, no one has shown that unacceptable overheating will actually occur. Hence, Hunter uses the phrase theoretical harmonics. Best regards, Rich --- 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,
RE: Application of equipment in U.S. aircraft
David: DO-160D, which has superseded the C version, is the spec you need to use. It's a complicated document, with over a dozen specific test methods. Fortunately, not all of the test methods are always required. As for recommending a test lab, one lab does come to mind rather easily. Send me an email off-list, and CDS will be happy to quote you on performing the applicable methods of DO-160D! Regards, Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis -Original Message- From: Dave Hutchins [mailto:hutch...@protek-tvs.com] Sent: Monday, February 26, 2001 9:55 AM To: Price, Ed; 'Dan Kinney (A)'; Emc-Pstc (E-mail) Cc: Roy Lowery (A); Brian Stuckey (A) Subject: RE: Application of equipment in U.S. aircraft All: Can anyone tell me where I can get some devices tested to DO-160C or D? David Hutchins ProTek Devices hutch...@protek-tvs.com -Original Message- From: Price, Ed [SMTP:ed.pr...@cubic.com] Sent: Monday, February 26, 2001 9:34 AM To: 'Dan Kinney (A)'; Emc-Pstc (E-mail) Cc: Roy Lowery (A); Brian Stuckey (A) Subject:RE: Application of equipment in U.S. aircraft Dan: Look at RTCA DO-160D for US commercial aircraft. I think that the FAA also has a flock of interface standards that might have some relevance. Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis -Original Message- From: Dan Kinney (A) [mailto:dan.kin...@heapg.com] Sent: Monday, February 26, 2001 6:07 AM To: Emc-Pstc (E-mail) Cc: Roy Lowery (A); Brian Stuckey (A) Subject: Application of equipment in U.S. aircraft We have a possible application of some of our equipment for engine control of crop dusting aircraft. We have never had our equipment used on aircraft before (to our knowledge) thus don't know if there are any regulatory issues we need to concern ourselves with. The application is for use in the U.S., at least initially. Our equipment presently complies with the EMC Directive for ISM and is UL approved for Hazardous Locations. It would stand to reason there would be additional requirements for any application involving aircraft but we don't know if this might be an issue between the installer and the FAA or an issue for us to be concerned and involved with. My request might be a little off topic for this group, but if anyone can point me in the right direction, I would appreciate it. Dan Kinney --- 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,
Re: Final EMC Testing In-House
of81d18a4a.0bea4c26-on862569ff.0057e...@us.tuv.com, ggars...@us.tuv.com wrote: Do any product standards actually set limits for immunity to supply frequency variations? One that comes to mind (specific to Programmable Controllers [ aka PLC's]) is EN 61131-2 (IEC 61131-2). 6.3.7.1.1 (table 47) requires (inter alia ) testing incoming power AC frequency from 0.95 to 1.05 of the nominal. (As you may expect, the requirement is that the EUT must function properly both during and after the tests.) Noted, thank you. -- Regards, John Woodgate, OOO - Own Opinions Only. Phone +44 (0)1268 747839 Fax +44 (0)1268 777124. http://www.jmwa.demon.co.uk Foxhunters suffer from tallyhosis. PLEASE do not mail copies of newsgroup posts to me. --- 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,
Re: Harmonics -- WSJ opinion.
200102261711.jaa27...@epgc196.sdd.hp.com, Rich Nute ri...@sdd.hp.com wrote: With thanks to Ed Jones... On Thusday, February 22, The Wall Street Journal Europe published an interesting opinion on the harmonic current emissions standard. The opinion is by Rob Hunter, a lawyer and Chairman of the Centre for the New Europe, a Brussels-based think tank. I think I may know a bit about the harmonics emission standard, since I helped to write the latest big amendment, after ten years of agitating for the need for amendment, and I am helping to write the next complete revision. This amendment was developed *internationally*, with a US expert from the computer and measuring instrument manufacturing sector leading the work. For purely procedural reasons, it has been published in CENELEC before being published by the IEC. For the avoidance of doubt, I am sponsored for this work by a trade association of manufacturers of professional audio and lighting equipment. Mr. Hunter is quite critical of the EU New Approach process. He says: In this procedure, the EU sets vague safety and technical rules for everything from toys to super- computers -- for example, toys shall be 'safe.' The EU then delegates to private standardization bodies CEN and CENELEC are NOT 'private bodies'. ETSI is a private body. CEN and CENELEC adopt ISO and IEC International Standards unless special circumstances in Europe prevent that. If that is so, regional amendments, applying in all participating countries, are introduced. the drafting of detailed requirements explaining what the delphic rules mean. They NEED to be 'vague' (I prefer 'generic') so that the detailed technical requirements can be developed by people who understand the technical issues without unreasonable legal constraints. The supposed advantage of this New Approach is twofold. For industry, it gets to write the detailed rules applying to it. For the Commission, the New Approach frees it from a burdenom task; it also allows the Commission to claim that it has nothing to do with writing the standards, and hence cannot be held responsible. That is false. DGIII of the Commission decides which standards it will accept as providing prima facie evidence of conformity with Directives. It does NOT accept all the standards it's offered. The Commission DEMANDS responsibility for determining which standards are 'notified' in the OJEC as acceptable. All this sounds quite above-board. It isn't. For one thing, the standards are not merelay a means of proving compliance with the underlying legislation. They actually determine the meaning of the law itself. That is essentially true. The alternative is to include all the technical requirements in the Directives themselves. That was tried and proved impracticable. Any improvement or revision of the technical requirements, to relax unnecessary restraints or to allow for new technology, requires the LAW to be changed in 18 countries, which takes YEARS. Mr. Hunter discusses ...the way these standard-setting bodies can be gamed by industry insiders for advantage. This has happened, but it has been ALLOWED to happen through apathy by industry sectors that SHOULD have participated in the standards-making process. It can't happen if committees are properly representative. Mr. Hunter goes on to show how the New Approach process allows the Commission to sidestep ...WTO laws prohibiting 'mandatory' product measures that create 'unnecessary obstacles' to international trade. They may be 'unnecessary' in his opinion: the reality may be different. I don't think he is technically qualified to determine necessity. Mr. Hunter's opinion goes on to show that the only ones who benefit from the harmonic current emission standard are the European electricity distributors. They avoid investments in bolstering their networks against the theoretical harmonics risk at the cost of manufacturers and consumers. The risk is certainly NOT just theoretical. The failure mechanisms due to harmonic currents are very well-understood, and are quite easy to understand in most cases. Analysis of the economic issues, **internationally**, with full participation by American interests, indicates that the lowest-cost solution to the problems created by harmonic currents almost certainly comprises equipment-level mitigation (as required by the EMC Directive), site-level mitigation (as indicated in IEEE 519) and system-level mitigation (as practised by the supply industry for around 50 years). After several years of unproductive and very costly contention, the international work on this subject is now becoming consensual. It is very undesirable for old contentions to be dragged up by people who are apparently authoritative but are woefully ill-informed. We now KNOW why the major problem with harmonic currents in the Americas is 'hot neutrals', whereas in Europe there are several
Re: Calibration of test equipment
As I understand it the interpretation to have tracibility to your national authority through equipment used only for calibration originated with NAMAS. Some other accreditors have picked it up since then. The requirement need not be that onerous. You can calibrate your own equipment traceably to your national authority using equipment that you send out for calibration. Where the instrument is cheap (multimeter) we buy an extra and use it only for calibration. Where it is expensive (oscope, receiver), we use it for calibration only directly after it returns from outside calibration (or inside tracible cal) and after we have calibrated our secondary equipment with it we put it into regular service for the year. If you manage your yearly calibration cycle well this shouldn't crimp your style too much. The key is not to have equipment in your calibration chain back to the national authority that has been used for non-calibration purposes between the time of its calibration and that of the secondary calibration. The idea is to have high confidence that the tracibilty chain is intact. If a piece of equipment in the chain has been used daily in regular rough and tumble testing it is seen as having a much higher probability of operating outside of its tolerances. In my experience the outside cal houses are pretty tough on their gear too, so I am not sure that much is gained. I personally think this interpretation is overly severe, but we comply with it because we want our test reports to be accepted by authorities who think this process is reasonable. To directly answer your specific question about a signal generator used in immunity: If it is being used as an uncalibrated signal source in the measurement and you are using a power meter or receiver for tracibility then you can use that signal generator, even if it went off a cliff the day before. If you are relying on the calibrated output level that the signal generator says it is putting out, then you should not have used that instrument in non-calibration use since its last calibration. Jon. Flinders, Randall wrote: Does this mean that a signal generator that is used for Radiated Immunity testing should not be used to calibrate Pre-Amps and Cables? How about Antenna Calibration? Can you use the same receiver you use on the OATS to calibrate those? I know this is a common practice with Commercial Test Labs. Is there guidance as to what types of equipment can be used for both lab use and for the calibration of other equipment? michael.sundst...@nokia.com wrote: I think there is a special requirement to keep the calibration equipment separate from the EMC equipment. In other words the calibration equipment can only be used for the calibration process and not for testing EMC. Michael Sundstrom Product Test Technician EMC Nokia Mobile Phones, Dallas PCC * Email michael.sundst...@nokia.com % Desk (972) 374-1462 *Mobile (817) 917-5021 * Fax (972) 374-0901 amateur call: KB5UKT --- 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: http://www.rcic.com/ click on Virtual Conference Hall, -- Jon D. Curtis, P.E. Director of Engineering Curtis-Straus LLC One Stop Laboratory for NEBS, EMC, Product Safety, and Telecom Testing. 527 Great Road Littleton, MA 01460 USA Voice 978-486-8880 Fax 978-486-8828 email: jcur...@curtis-straus.com WWW.CURTIS-STRAUS.COM --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc
RE: Harmonics -- WSJ opinion.
Rich, I would think that you knew that this would generate discussion? One comment of Mr Hunter's that stood out in particular was the very last . . . . . . the only ones who benefit from the harmonic current emission standard are the European electricity distributors. They avoid investments in bolstering their networks against the theoretical harmonics risk at the cost of manufacturers and consumers. I would say that this senitment has been echoed by many compliance engineers. But the comment is 'non-technical' . . . can anyone in this forum offer any 'technical' arguments that would a)Back-up such a statement as Mr. Hunter's or b) FAVOR the harmonic standard? I like to give the benefit of the doubt that the standard was created based on sound technical evidence. John Juhasz Fiber Options Bohemia, NY -Original Message- From: Rich Nute [ mailto:ri...@sdd.hp.com mailto:ri...@sdd.hp.com ] Sent: Monday, February 26, 2001 12:11 PM To: emc-p...@majordomo.ieee.org Subject: Harmonics -- WSJ opinion. With thanks to Ed Jones... On Thusday, February 22, The Wall Street Journal Europe published an interesting opinion on the harmonic current emissions standard. The opinion is by Rob Hunter, a lawyer and Chairman of the Centre for the New Europe, a Brussels-based think tank. Mr. Hunter is quite critical of the EU New Approach process. He says: In this procedure, the EU sets vague safety and technical rules for everything from toys to super- computers -- for example, toys shall be 'safe.' The EU then delegates to private standardization bodies the drafting of detailed requirements explaining what the delphic rules mean. The supposed advantage of this New Approach is twofold. For industry, it gets to write the detailed rules applying to it. For the Commission, the New Approach frees it from a burdenom task; it also allows the Commission to claim that it has nothing to do with writing the standards, and hence cannot be held responsible. All this sounds quite above-board. It isn't. For one thing, the standards are not merelay a means of proving compliance with the underlying legislation. They actually determine the meaning of the law itself. Mr. Hunter discusses ...the way these standard-setting bodies can be gamed by industry insiders for advantage. Mr. Hunter goes on to show how the New Approach process allows the Commission to sidestep ...WTO laws prohibiting 'mandatory' product measures that create 'unnecessary obstacles' to international trade. Mr. Hunter's opinion goes on to show that the only ones who benefit from the harmonic current emission standard are the European electricity distributors. They avoid investments in bolstering their networks against the theoretical harmonics risk at the cost of manufacturers and consumers. Best regards, Rich --- 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/ 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/ http://www.rcic.com/ click on Virtual Conference Hall,
RE: Application of equipment in U.S. aircraft
All: Can anyone tell me where I can get some devices tested to DO-160C or D? David Hutchins ProTek Devices hutch...@protek-tvs.com -Original Message- From: Price, Ed [SMTP:ed.pr...@cubic.com] Sent: Monday, February 26, 2001 9:34 AM To: 'Dan Kinney (A)'; Emc-Pstc (E-mail) Cc: Roy Lowery (A); Brian Stuckey (A) Subject:RE: Application of equipment in U.S. aircraft Dan: Look at RTCA DO-160D for US commercial aircraft. I think that the FAA also has a flock of interface standards that might have some relevance. Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis -Original Message- From: Dan Kinney (A) [mailto:dan.kin...@heapg.com] Sent: Monday, February 26, 2001 6:07 AM To: Emc-Pstc (E-mail) Cc: Roy Lowery (A); Brian Stuckey (A) Subject: Application of equipment in U.S. aircraft We have a possible application of some of our equipment for engine control of crop dusting aircraft. We have never had our equipment used on aircraft before (to our knowledge) thus don't know if there are any regulatory issues we need to concern ourselves with. The application is for use in the U.S., at least initially. Our equipment presently complies with the EMC Directive for ISM and is UL approved for Hazardous Locations. It would stand to reason there would be additional requirements for any application involving aircraft but we don't know if this might be an issue between the installer and the FAA or an issue for us to be concerned and involved with. My request might be a little off topic for this group, but if anyone can point me in the right direction, I would appreciate it. Dan Kinney --- 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: 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: http://www.rcic.com/ click on Virtual Conference Hall,
Re: Calibration of test equipment
Does this mean that a signal generator that is used for Radiated Immunity testing should not be used to calibrate Pre-Amps and Cables? How about Antenna Calibration? Can you use the same receiver you use on the OATS to calibrate those? I know this is a common practice with Commercial Test Labs. Is there guidance as to what types of equipment can be used for both lab use and for the calibration of other equipment? michael.sundst...@nokia.com wrote: I think there is a special requirement to keep the calibration equipment separate from the EMC equipment. In other words the calibration equipment can only be used for the calibration process and not for testing EMC. Michael Sundstrom Product Test Technician EMC Nokia Mobile Phones, Dallas PCC * Email michael.sundst...@nokia.com % Desk (972) 374-1462 *Mobile (817) 917-5021 * Fax (972) 374-0901 amateur call: KB5UKT --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
CPSTC meeting for March 7, 2001
Greetings, For those of you who are interested in attending the Colorado Product Safety Technical Committee (CPSTC) meeting, please read on. Quick summary 1. Next meeting: Wednesday, March 7, 2001 Location:Exabyte, 1685 38th Street Boulder, CO USA Start time will be 6:30pm. 2. Agenda for year 2001 3. Review the progress of the workshop presentation by Ron Duffy and Richard Georgerian for submittal to the IEEE EMC Montreal committee. 4. Review the progress of Bill LaFollette regarding his transformer technical paper. If you plan on attending, please let me know so I can plan accordingly with the restaurant. Guests are welcomed and encouraged to attend our first meeting of the new year. For more details please visit the Product Safety News web site: http://www.ewh.ieee.org/soc/emcs/pstc/index.htm Thanks in advance. Richard Georgerian Technical Committee 8 Product Safety (TC-8), Vice-chair Colorado Product Safety Technical Committee (CPSTC), Chair Product Compliance Engineer Exabyte 1685 38th Street Boulder, CO 80301 USA tel.: 303-417-7537 fax: 303-417-5710 email: mailto:richa...@exabyte.com
Harmonics -- WSJ opinion.
With thanks to Ed Jones... On Thusday, February 22, The Wall Street Journal Europe published an interesting opinion on the harmonic current emissions standard. The opinion is by Rob Hunter, a lawyer and Chairman of the Centre for the New Europe, a Brussels-based think tank. Mr. Hunter is quite critical of the EU New Approach process. He says: In this procedure, the EU sets vague safety and technical rules for everything from toys to super- computers -- for example, toys shall be 'safe.' The EU then delegates to private standardization bodies the drafting of detailed requirements explaining what the delphic rules mean. The supposed advantage of this New Approach is twofold. For industry, it gets to write the detailed rules applying to it. For the Commission, the New Approach frees it from a burdenom task; it also allows the Commission to claim that it has nothing to do with writing the standards, and hence cannot be held responsible. All this sounds quite above-board. It isn't. For one thing, the standards are not merelay a means of proving compliance with the underlying legislation. They actually determine the meaning of the law itself. Mr. Hunter discusses ...the way these standard-setting bodies can be gamed by industry insiders for advantage. Mr. Hunter goes on to show how the New Approach process allows the Commission to sidestep ...WTO laws prohibiting 'mandatory' product measures that create 'unnecessary obstacles' to international trade. Mr. Hunter's opinion goes on to show that the only ones who benefit from the harmonic current emission standard are the European electricity distributors. They avoid investments in bolstering their networks against the theoretical harmonics risk at the cost of manufacturers and consumers. Best regards, Rich --- 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,
RE: Shipping Equipment with Batteries Installed
Some SRD limits were set with the assumption that the devices would not be located near navigational equipment that operate in the band. For example, SRD limits in the 9-135 kHz band were set with the assumption that the SRD was at least 100 m away from a navigation receiver operating in that band. That would not be the case onboard an aircraft or ship. Richard Woods -- From: Kevin Harris [SMTP:harr...@dscltd.com] Sent: Monday, February 26, 2001 11:47 AM To: EMC-PSTC (E-mail) Subject: Shipping Equipment with Batteries Installed Hello Group, Does anybody know of any regulatory restriction of shipping an SRD with an on time of much less than 0.1% into the US and Canadian markets with it's batteries installed? We have had a request from one of our clients to do so. I would hazard a guess that should the cargo go by air then the airlines might not like it. Can anybody think of other issues that might arise from this. Best Regards, Kevin Harris Manager, Approval Services Digital Security Controls 3301 Langstaff Road Concord, Ontario CANADA L4K 4L2 Tel: +1 905 760 3000 Ext. 2378 Fax +1 905 760 3020 Email: harr...@dscltd.com mailto:harr...@dscltd.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: 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: http://www.rcic.com/ click on Virtual Conference Hall,
Re: Calibration of test equipment
Brian, my concern with your statement would be suggesting use of a NAMAS accredited lab Why not A2LA or other body. I know of a number of great cal labs with no accreditation Derek Walton --- 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,
RE: Compliance Statement per TCAM Recommendation
I would like to thank everyone, particularly Richard Woods, who took time to
respond.
Best Regards,
Vitaly Gorodetsky
-Original Message-
From: Gorodetsky, Vitaly [SMTP:vgorodet...@canoga.com]
Sent: Thursday, February 22, 2001 2:27 PM
To: Emc-Pstc (E-mail)
Subject:Compliance Statement per TCAM Recommendation
Dear members and colleagues in EU:
As you are aware, TCAM has recently advised to include in user
manuals a conformity statement in the languages of every country of EU/EFTA
targeted for sales (potentially 11 languages).
I would greatly appreciate if you would help by translating the
following statement in those languages. Everyone here dealing with
Telecommunication Terminal Network Equipment would greatly benefit from
your contribution.
Hereby, {name of manufacturer} declares that this {type of
equipment Model Number} is in compliance with the essential requirements
and other relevant provisions of Directive 99/5/EC. This product is
intended for use in all EU and EFTA member states.
NOTE: The German, French, Spanish, and Finnish translations are
already available - courtesy of Richard Wood. Thanks, Richard.
Best Regards and THANKS in advance,
Vitaly Gorodetsky
Sr. Compliance Engineer Direct: (818) 678-3840
Canoga Perkins Corp.Main: (818) 718-6300
20600 Prairie StreetFAX:(818) 678-3740
Chatsworth, CA 91311-6008 e-mail:
vgorodet...@canoga.com mailto:vgorodet...@canoga.com
mailto:vgorodet...@canoga.com mailto:vgorodet...@canoga.com
The suitability of this information for making decision is solely
with the
reader
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RE: Calibration of test equipment
Schleppers of the world, unite ! Vitaly -Original Message- From: Price, Ed [SMTP:ed.pr...@cubic.com] Sent: Monday, February 26, 2001 7:37 AM To: 'Brian Harlowe'; 'emc-p...@ieee.org' Subject:RE: Calibration of test equipment Brian: I calibrate my spectrum analyzer after every time I drop it. Ed -Original Message- From: Brian Harlowe [mailto:brian.harl...@vgscientific.com] Sent: Monday, February 26, 2001 12:54 AM To: 'emc-p...@ieee.org' Subject: Calibration of test equipment I seem to have hit a raw nerve by suggesting that emc test equipment should be NAMAS calibrated. But surely some cost for calibration should come into the equation. Surely no professional test engineer would use test equipment that had not been calibrated at least annually!!! Brian Harlowe Thermo V.G. Scientific Tel +44 (0)1342 327211 Fax +44 (0)1342 315074 Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
RE: Calibration of test equipment
I think there is a special requirement to keep the calibration equipment separate from the EMC equipment. In other words the calibration equipment can only be used for the calibration process and not for testing EMC. Michael Sundstrom Product Test Technician EMC Nokia Mobile Phones, Dallas PCC * Email michael.sundst...@nokia.com % Desk (972) 374-1462 *Mobile (817) 917-5021 * Fax (972) 374-0901 amateur call: KB5UKT --- 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,
Re: Application of equipment in U.S. aircraft
Dan There is a long list of FAA requirements for equipment and components used within aircraft. It been a few years since I looked into this subject and I no longer have a soft copy of the documents or the URL on the FAA web site where it is located. From what I remember engine components are most definitely on the list and it the equipment manufacture who has to apply for the FAA certification / approval. Unfortunately also from what I remember it was quite a chore to find the relevant FAA document, but it covers every thing from approval process, requirements and times which fall under the scope. At the end of the day our product never got past the bid stage, so I had no reason to keep the info. Hope this helps. Dan Kinney (A) wrote: We have a possible application of some of our equipment for engine control of crop dusting aircraft. We have never had our equipment used on aircraft before (to our knowledge) thus don't know if there are any regulatory issues we need to concern ourselves with. The application is for use in the U.S., at least initially. Our equipment presently complies with the EMC Directive for ISM and is UL approved for Hazardous Locations. It would stand to reason there would be additional requirements for any application involving aircraft but we don't know if this might be an issue between the installer and the FAA or an issue for us to be concerned and involved with. My request might be a little off topic for this group, but if anyone can point me in the right direction, I would appreciate it. Dan Kinney --- 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, -- Andrew Carson - Product Safety Engineer Xyratex Engineering Laboratory Tele 023 92496855 Fax 023 92496014 --- 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,
RE: Application of equipment in U.S. aircraft
Dan: Look at RTCA DO-160D for US commercial aircraft. I think that the FAA also has a flock of interface standards that might have some relevance. Ed Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis -Original Message- From: Dan Kinney (A) [mailto:dan.kin...@heapg.com] Sent: Monday, February 26, 2001 6:07 AM To: Emc-Pstc (E-mail) Cc: Roy Lowery (A); Brian Stuckey (A) Subject: Application of equipment in U.S. aircraft We have a possible application of some of our equipment for engine control of crop dusting aircraft. We have never had our equipment used on aircraft before (to our knowledge) thus don't know if there are any regulatory issues we need to concern ourselves with. The application is for use in the U.S., at least initially. Our equipment presently complies with the EMC Directive for ISM and is UL approved for Hazardous Locations. It would stand to reason there would be additional requirements for any application involving aircraft but we don't know if this might be an issue between the installer and the FAA or an issue for us to be concerned and involved with. My request might be a little off topic for this group, but if anyone can point me in the right direction, I would appreciate it. Dan Kinney --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
Re: Final EMC Testing In-House
Do any product standards actually set limits for immunity to supply frequency variations? One that comes to mind (specific to Programmable Controllers [ aka PLC's]) is EN 61131-2 (IEC 61131-2). 6.3.7.1.1 (table 47) requires (inter alia ) testing incoming power AC frequency from 0.95 to 1.05 of the nominal. (As you may expect, the requirement is that the EUT must function properly both during and after the tests.) best regards, glyn Glyn R. Garside Notice: This message is confidential and intended for the use of the intended recipient(s) only. If this e-mail was sent to you in error please notify the originator at the address above delete the message without reading its contents. John Woodgate j...@jmwa.demTo: Chris Chileshe chris.chile...@ultronics.co.uk on.co.ukcc: 'marti...@appliedbiosystems.com' Sent by: marti...@appliedbiosystems.com, 'emc-p...@majordomo.ieee.org' owner-emc-pstemc-p...@majordomo.ieee.org c...@ieee.org Subject: Re: Final EMC Testing In-House 02/23/2001 05:00 Please respond to John Woodgate 01c09d74.1acbb9a0.chris.chile...@ultronics.co.uk, Chris Chileshe chris.chile...@ultronics.co.uk wrote: If 1), then I believe you have covered all the tests, assuming supply frequency variations are captured in Voltage fluctuations. Do any product standards actually set limits for immunity to supply frequency variations? --- 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,
RE: Calibration of test equipment
Brian: I calibrate my spectrum analyzer after every time I drop it. Ed -Original Message- From: Brian Harlowe [mailto:brian.harl...@vgscientific.com] Sent: Monday, February 26, 2001 12:54 AM To: 'emc-p...@ieee.org' Subject: Calibration of test equipment I seem to have hit a raw nerve by suggesting that emc test equipment should be NAMAS calibrated. But surely some cost for calibration should come into the equation. Surely no professional test engineer would use test equipment that had not been calibrated at least annually!!! Brian Harlowe Thermo V.G. Scientific Tel +44 (0)1342 327211 Fax +44 (0)1342 315074 Ed Price ed.pr...@cubic.com Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA. USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis --- 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,
RE: Air Flow Meters
Joe, One product I have found that uses wire probes is the ATM-24 from Cambridge AccuSence, Inc. Regards, Kurt Mikolajewski Catena Networks Voice: (613) 599-6430, x8551 Voice (Internal): 8551 Email: kmiko...@catena.com -Original Message- From: Joe Finlayson [mailto:jfinlay...@telica.com] Sent: Friday, February 23, 2001 4:03 PM To: 'EMC PSTC'; 'NEBS Newsgroup' Subject: RE: Air Flow Meters OK, thanks for all the replies. It appears I am in search of a Hot Wire Anemometer. I've found several on the web, but all seem to use a telescoping probe for measurement, probably for air ducts. Does anyone know of a model that uses a wire for measurement so I can affix it to a modular plug in card, thus sealing the chassis. My goal is to measure air flow rates in each of 21 slots while the cards are installed (thus sealing the chassis for realistic air flow). Thx, Joe -Original Message- From: Joe Finlayson Sent: Friday, February 23, 2001 8:41 AM To: 'EMC PSTC'; 'NEBS Newsgroup' Subject: Air Flow Meters I'm interested in doing an air flow analysis on a per-slot basis for a modular chassis. Can anyone share their experience in using their favorite test tools for this function. One of my colleagues had mentioned that he recalls the use of a thermocouple-type lead that was used at his previous place of employment that measured air flow. Any knowledge of this type of product would be greatly appreciated as well. Thx, Joe * OLE Object: Picture (Metafile) Joe Finlayson Manager, Compliance Engineering Telica, Inc. 734 Forest Street, Bldg. G, Suite 100 Marlboro, MA 01752 Tel: (508) 804-8212 Fax: (508) 480-0922 Email:jfinlay...@telica.com Web: www.telica.com --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- 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,
Re: Calibration of test equipment
At the least, I would expect the test eqipment parameters/characteristics to be checked via other test equipment that is in current calibration traceable to NIST or NAMAS. This check would require a documented procedure. - Original Message - From: Brian Harlowe brian.harl...@vgscientific.com To: emc-p...@ieee.org Sent: Monday, February 26, 2001 3:53 AM Subject: Calibration of test equipment I seem to have hit a raw nerve by suggesting that emc test equipment should be NAMAS calibrated. But surely some cost for calibration should come into the equation. Surely no professional test engineer would use test equipment that had not been calibrated at least annually!!! Brian Harlowe Thermo V.G. Scientific Tel +44 (0)1342 327211 Fax +44 (0)1342 315074 --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
Application of equipment in U.S. aircraft
We have a possible application of some of our equipment for engine control of crop dusting aircraft. We have never had our equipment used on aircraft before (to our knowledge) thus don't know if there are any regulatory issues we need to concern ourselves with. The application is for use in the U.S., at least initially. Our equipment presently complies with the EMC Directive for ISM and is UL approved for Hazardous Locations. It would stand to reason there would be additional requirements for any application involving aircraft but we don't know if this might be an issue between the installer and the FAA or an issue for us to be concerned and involved with. My request might be a little off topic for this group, but if anyone can point me in the right direction, I would appreciate it. Dan Kinney --- 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,
Re: Calibration of test equipment
f9d85b6af82bd4119ae800d0b769603b2c6...@kestrel.vgscientific.com, Brian Harlowe brian.harl...@vgscientific.com wrote: I seem to have hit a raw nerve by suggesting that emc test equipment should be NAMAS calibrated. But surely some cost for calibration should come into the equation. Surely no professional test engineer would use test equipment that had not been calibrated at least annually!!! The objection is to the 'expensive' word 'NAMAS'. Calibration, mainly by less costly means, is certainly necessary. -- Regards, John Woodgate, OOO - Own Opinions Only. Phone +44 (0)1268 747839 Fax +44 (0)1268 777124. http://www.jmwa.demon.co.uk Foxhunters suffer from tallyhosis. PLEASE do not mail copies of newsgroup posts to me. --- 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,
RE: RTTE
John, Try the UK Radiocommunications Agency at www.radio.gov.uk. Regards Steve Austin Cass Industries Limited - Original Message - From: John Juhasz To: 'emc-p...@ieee.org' Sent: Friday, February 23, 2001 8:47 PM Subject: RTTE Hi all . . . Does anyone have a link to the RTTE? 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
Re: EU Automotive Standards
Hello Bill, You are correct, the EU directive is 95/54/EC,the directive text includes all requirements concerning EMC requirements no specific standards apply: 395L0054 Commission Directive 95/54/EC of 31 October 1995 adapting to technical progress Council Directive 72/245/EEC on the approximation of the laws of the Member States relating to the suppression of radio interference produced by spark-ignition engines fitted to motor vehicles and amending Directive 70/156/EEC on the approximation of the laws of the Member States relating to the type-approval of motor vehicles and their trailers Official Journal L 266 , 08/11/1995 p. 0001 - 0066 You can get the text from: http://europa.eu.int/eur-lex/en/lif/dat/1995/en_395L0054.html If you want the figures as well you must buy Official Journal L 266 , 08/11/1995. You may order Official Journal from http://eur-op.eu.int/general/en/s-ad.htm Best regards Helge Knudsen Test Approval Niros Telecommunication Hirsemarken 5 DK-3520 Farum Tlf +45 44 34 22 51 Fax +45 44 99 28 08 email h.knud...@niros.com -Oprindelig meddelelse- Fra: Bill Ronzio [mailto:bill.ron...@flextronics.com] Sendt: 23. februar 2001 16:28 Til: emc-p...@ieee.org Emne: EU Automotive Standards To all, Does anyone know which Directive and / or standard need be applied to a vehicle fire suppression system and controls that is mounted to a vehicle. This system detects gas and fire with strategically placed sensors and dispenses the fire suppression at the needed location. I've been told that the directive is 95/54/EC. Not sure if this is correct and I'm not sure which standards apply. Thanks, Bill --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- 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,
Calibration of test equipment
I seem to have hit a raw nerve by suggesting that emc test equipment should be NAMAS calibrated. But surely some cost for calibration should come into the equation. Surely no professional test engineer would use test equipment that had not been calibrated at least annually!!! Brian Harlowe Thermo V.G. Scientific Tel +44 (0)1342 327211 Fax +44 (0)1342 315074 --- 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,
