thermal v magnetic breakers
in our products we make extensive use of breakers combined with the on-off switch they are exclusively magnetic type thermal breakers work by temperature effects which arise from the heating effect of the current. There is an unavoidable time factor involved when the current must first heat something. magnetic breakers are current sensitive directly, the current flows thru the solenoid coil to which the moving contacts are attached. you can expect a magnetic breaker to offer the following advantages: smaller margin between operating current and trip current, can be as little as 10% more rapid response time, response time variable relatively insensitive to the ambient temperature, much less so than thermal breakers possibility of remote operation by auxiliary coil and many other useful configurations Try AIRPAX Maryland for expert information on Magnetic breakers, a subsidiary of Philips. an unsolicited observation: sorry to hear you have lost the people who designed the product. Buyers and managers need good engineers to keep them out of pitfalls like the substitution you have described. --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: IEC 60417 symbol library
Hi Everybody: Because of a need that has come up suddenly, I am looking for a source of two ISO 3864 symbols in a big hurry. Where can one purchase and download EPS or similar quality graphics of these symbols? The two I am looking for are the red circle-slash over the hand (meaning hot surface do not touch), and B.3.1 (exclamation point in the triangle yellow background). I already have a gif of the latter one which might be convertible. Thanks in advance for any help. Angus McGill Compliance Engineer Cascade Engineering Services, Inc. v-ang...@microsoft.com -Original Message- From: Peter Tarver [mailto:peter.tar...@sanmina-sci.com] Sent: Wednesday, August 07, 2002 9:19 AM To: PSTC Subject: IEC 60417 symbol library All interested - The IEC has just announced an upcoming on-line IEC 60417 symbol library will be made available soon (I checked and it's not yet available through the IEC Web Store). Don't expect to access them gratis, as they once were on the Chiba University, Ikeda Lab web site (even though fee based, this could be very handy). Pricing was not announced. Access to the databases is by subscription: clients can purchase a subscription for a 3, 6, 12 or 24-month period giving them access to the full collection of graphical symbols. Refer to http://www.iec.ch/online_news/etech/prodserv.htm For further reading on the concept of database standards from the IEC, browse to http://www.iec.ch/online_news/etech/arch_2002/etech_0702/foc us.htm Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Thermal breakers vs magnetic breakers for telecom
Ran into a similar problem with the thermals - they tripped during the 72 hour 55C operating limit test. Could have gone larger but it had more problems than fitting in the magnetic units. Gary -Original Message- From: John Juhasz [mailto:john.juh...@ge-interlogix.com] Sent: Wednesday, August 07, 2002 11:28 AM To: 'David Heald'; 'EMC_PSTC' Subject: RE: Thermal breakers vs magnetic breakers for telecom Yeah, I had used them . . . once. As they were a lower cost circuit breaker we spec'd them into a telecom system. What we didn't think about was the temperature extremes. For the higher temp tests for NEBS the higher temp breakers were too large and too expensive - for my management anyway. I suppose they could serve a purpose during the fire spread test - power disconnection of chassis. Just a couple of thoughts . . . John A. Juhasz GE Interlogix Fiber Options Div. Bohemia, NY -Original Message- From: David Heald [mailto:dhe...@tellium.com] Sent: Wednesday, August 07, 2002 11:18 AM To: 'EMC_PSTC' Subject: Thermal breakers vs magnetic breakers for telecom Greetings all, In the spirit of the continual quest for cost reduction, I have been asked to look into the use of thermal circuit breakers instead of magnetic ones. It seems like we rejected thermal breakers before for some reason, but now no one can remember why. Does anyone know of any telecom (or general) reasons why thermal circuit breakers may be unacceptable for telecom products? Thanks and Best Regards, Dave Heald --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Online Standards EN61010-1
Hello Doug, Bose buys many of our standards from ILI in Great Britain (I believe) http://www.ili-info.com/us/ and we have received some in electronic format. These sites also seems to offer standards in PDF form and also gives you a simple free search engine to help you identify and find standards for your application which is helpful http://www.cssinfo.com/perinorm.html and http://www.techstreet.com/ Hope this is helpful. regards, John Tyra Design Assurance Engineering, Product Safety Regulatory Manager Bose Corporation The Mountain, M.S.-450 Framingham, MA 01701-9168 508-766-1502 Phone 508-766-1145 Fax john_t...@bose.com -Original Message- From: POWELL, DOUG [mailto:doug.pow...@aei.com] Sent: Wednesday, August 07, 2002 1:15 PM To: EMC-PSTC (E-mail) Subject: Online Standards EN61010-1 Hello all, I have been searching for a document service that has electronic format standards (PDF) for EN61010-1:2001 with fully functional text search. IHS Global and TechStreet have hardcopy only. BSI offers electronic but it's only a converted TIFF format. I thought about using the IEC but I am not sure if there are any national deviations in the European Norm. Any help you can provide is appreciated. -doug --- Douglas E. Powell, Compliance Engineer Advanced Energy Industries, Inc. Ft. Collins, CO 80525 mailto:doug.pow...@aei.com --- ___ This message, including any attachments, may contain information that is confidential and proprietary information of Advanced Energy Industries, Inc. The dissemination, distribution, use or copying of this message or any of its attachments is strictly prohibited without the express written consent of Advanced Energy Industries, Inc. --- This message is from the IEEE 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Thermal breakers vs magnetic breakers for telecom
RE: Thermal breakers vs magnetic breakers8/7/02 David, One of the reasons they may have been rejected previously is their change in trip point due to temperature changes. The higher the ambient temperature gets the lower the trip point of the thermal device becomes. If they are used side by side in a PDU in a telecom rack they may even generate enough heat to trip with 80% or less of rated current flowing. The trip point of a hydraulic magnetic breaker does not change with temperature. Typically they have a must trip value at 125% of rated current and will hold 100% of rated current. The one thing about magnetic hydraulic breakers at an increased ambient temperature is that the amount of time required to trip at 125% of rated current will be less. In most cases this is not considered a bad attribute. I hope this helps John David Heald wrote: Greetings all, In the spirit of the continual quest for cost reduction, I have been asked to look into the use of thermal circuit breakers instead of magnetic ones. It seems like we rejected thermal breakers before for some reason, but now no one can remember why. Does anyone know of any telecom (or general) reasons why thermal circuit breakers may be unacceptable for telecom products? Thanks and Best Regards, Dave Heald --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list John Lach Manager Standards and Test john.l...@carlingtech.com Carling Technologies 60 Johnson Ave. Plainville, CT 06062 860-793-7167 www.carlingtech.com
RE: Thermal breakers vs magnetic breakers for telecom
Yeah, I had used them . . . once. As they were a lower cost circuit breaker we spec'd them into a telecom system. What we didn't think about was the temperature extremes. For the higher temp tests for NEBS the higher temp breakers were too large and too expensive - for my management anyway. I suppose they could serve a purpose during the fire spread test - power disconnection of chassis. Just a couple of thoughts . . . John A. Juhasz GE Interlogix Fiber Options Div. Bohemia, NY -Original Message- From: David Heald [mailto:dhe...@tellium.com] Sent: Wednesday, August 07, 2002 11:18 AM To: 'EMC_PSTC' Subject: Thermal breakers vs magnetic breakers for telecom Greetings all, In the spirit of the continual quest for cost reduction, I have been asked to look into the use of thermal circuit breakers instead of magnetic ones. It seems like we rejected thermal breakers before for some reason, but now no one can remember why. Does anyone know of any telecom (or general) reasons why thermal circuit breakers may be unacceptable for telecom products? Thanks and Best Regards, Dave Heald --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: Thermal breakers vs magnetic breakers for telecom
When I worked on CATV power supplies I had two reasons for using magnetic; 1. Nuisance tripping of thermal breakers during high ambient temperatures 2. Magnetic breakers often carry a higher level of safety rating (UL Listed vs UL Recognized)than thermal and have higher short circuit maximum ratings. Darrell Locke Advanced Input Devices -Original Message- From: David Heald [mailto:dhe...@tellium.com] Sent: Wednesday, August 07, 2002 8:18 AM To: 'EMC_PSTC' Subject: Thermal breakers vs magnetic breakers for telecom Greetings all, In the spirit of the continual quest for cost reduction, I have been asked to look into the use of thermal circuit breakers instead of magnetic ones. It seems like we rejected thermal breakers before for some reason, but now no one can remember why. Does anyone know of any telecom (or general) reasons why thermal circuit breakers may be unacceptable for telecom products? Thanks and Best Regards, Dave Heald --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Online Standards EN61010-1
Hello all, I have been searching for a document service that has electronic format standards (PDF) for EN61010-1:2001 with fully functional text search. IHS Global and TechStreet have hardcopy only. BSI offers electronic but it's only a converted TIFF format. I thought about using the IEC but I am not sure if there are any national deviations in the European Norm. Any help you can provide is appreciated. -doug --- Douglas E. Powell, Compliance Engineer Advanced Energy Industries, Inc. Ft. Collins, CO 80525 mailto:doug.pow...@aei.com --- ___ This message, including any attachments, may contain information that is confidential and proprietary information of Advanced Energy Industries, Inc. The dissemination, distribution, use or copying of this message or any of its attachments is strictly prohibited without the express written consent of Advanced Energy Industries, Inc. --- This message is from the IEEE 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
IEC 60417 symbol library
All interested - The IEC has just announced an upcoming on-line IEC 60417 symbol library will be made available soon (I checked and it's not yet available through the IEC Web Store). Don't expect to access them gratis, as they once were on the Chiba University, Ikeda Lab web site (even though fee based, this could be very handy). Pricing was not announced. Access to the databases is by subscription: clients can purchase a subscription for a 3, 6, 12 or 24-month period giving them access to the full collection of graphical symbols. Refer to http://www.iec.ch/online_news/etech/prodserv.htm For further reading on the concept of database standards from the IEC, browse to http://www.iec.ch/online_news/etech/arch_2002/etech_0702/foc us.htm Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Thermal breakers vs magnetic breakers for telecom
Greetings all, In the spirit of the continual quest for cost reduction, I have been asked to look into the use of thermal circuit breakers instead of magnetic ones. It seems like we rejected thermal breakers before for some reason, but now no one can remember why. Does anyone know of any telecom (or general) reasons why thermal circuit breakers may be unacceptable for telecom products? Thanks and Best Regards, Dave Heald --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: European FDA Equivalent
The European equivalent is the IEC 60825 series of standards. There may also be more laser safety to deal with in IEC 60601-2-22 as well but I am not sure since most of my work with lasers have been with communications equipment. I hope this helps. Steven - Original Message - From: Joe P Martin marti...@appliedbiosystems.com To: emc-p...@majordomo.ieee.org Sent: Tuesday, August 06, 2002 10:33 PM Subject: European FDA Equivalent Is there a European and/or Canadian equivalent to the FDA in the US in regards to diagnostic medical equipment? If so, what are the organizations names and are their requirements similar to the FDA's? Any assistance is appreciated. Regards Joe Martin Applied Biosystems marti...@appliedbiosystems.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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: European FDA Equivalent
In Canada, the analagous organization is Health Canada. Similar rules and responsibilities to FDA. The European system is somewhat different. All medical devices being marketed or placed into service in Europe must comply with the European Medical Device Directive (MDD) and carry a CE marking. Depending on the type of device and device classification (per the Directive), the product must be type tested to the appropriate European standard and test data and/or clinical data must be evaluated by a Notified Body for medical equipment before the CE Marking can be applied. There is at least one Notified Body for medical equipment in each European country, and any Notified Body you choose can do the work on behalf of all countries in the EU. Most products will also need to have a quality audit performed by a Notified Body at the manufacturer's facility. The product classifications are somewhat different from the FDA class I, II, and III, so you need to read the Directive carefully to find out how your device should be classified. Class I devices need little Notified Body oversight. Class IIa and IIb require quality audits and type approval, Class III equipment requires even more oversight and control. You can view the MDD here: http://www.newapproach.org/directiveList.asp Regards, Greg Galluccio Galluccio Associates 1-516-641-2250 www.productapprovals.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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
EN 60825 Laser Classifications
Group, Amendment 2 (2001) to EN60825 Safety of laser products, has changed some laser classifications. The amendment has included new classifications 1M, 2M and 3R. Class 1M and 2M include in their definitions For diverging beams if the user places optical components within 100mm from the source to concentrate the beam... What is the rational of adding these classifications? What is an example of a product that would use this technology? Why did the IEC choose the letters M and R for these new classifications? All responses are greatly appreciated. Regards Joe Martin Applied Biosystems --- 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: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com 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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list