RE: Product standard for telescope
The answer to this lies in the marketing information for the product. The target End-Use-Environment drives the choice of standards. If this equipment is being sold to residential users exclusively then it would not be scientific equipment. This would rule out EN 61326 and the choice would then be between the EN 61000-6 set or the EN55014's for household apparatus, for example. The other possible option is to use the TCF route and define specific criteria for the telescope based on night-time, outdoor use model of compliance. This may also have some merit if the manufacturer intends to produce small runs with multiple options. Regards, Alan Brewster, MIEE Senior Systems Safety Engineer Novellus Systems, Tualatin, OR From: lfresea...@aol.com [mailto:lfresea...@aol.com] Sent: Wednesday, August 27, 2003 8:23 PM To: emc-p...@ieee.org Subject: Product standard for telescope Hi All, I'm chatting with a client that manufacturers high end telescopes. Not usually found in Walmart, Currys etc. but they may find their way into richer family homes. These chaps are great for observing Mars at the moment! We are trying to decide which EMC product standard may apply for EMC. Would anyone care to share their opinions? Thanks, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
Copy of UL 2075 Draft for Public Comment request
Good Friends of the Forum, Can anyone send me a copy of the UL 2075 Gas Detectors and Sensors draft for public comment? I plan to buy a full version but as yet it is not available from UL. Regards, Alan Brewster, MIEE Senior Systems Safety Engineer Novellus Systems, Tualatin, OR 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: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: (mis)spelling humor
I am ambidextrous. Sadly the halves of my brain operate asynchronously and so it is not uncommon for my signature line to turn into, Anal. Folks that know me think that this is s funny. Frankly, I don't get it Regards, Alan (check it, check it) Brewster Senior Systems Safety Engineer From: Joshua Wiseman [mailto:jwise...@printronix.com] Sent: Friday, June 20, 2003 11:12 AM To: Scott Baer; garymcintu...@aol.com Cc: john.al...@era.co.uk; peter.tar...@sanmina-sci.com; emc-p...@majordomo.ieee.org Subject: RE: (mis)spelling humor Mine has changed Genicom to Genocide From: Scott Baer [mailto:ba...@agcs.com] Sent: Friday, June 20, 2003 9:17 AM To: garymcintu...@aol.com Cc: john.al...@era.co.uk; peter.tar...@sanmina-sci.com; emc-p...@majordomo.ieee.org Subject: Re: (mis)spelling humor Gary, My spellchecker persists in wanting to change Verizon to Venison. Now back to our regular program . . . ;) -- Scott J. Baer, P.E. Product Compliance Engineer AG Communication Systems A Subsidiary of Lucent Technologies garymcintu...@aol.com wrote: Once let spell check do its thing while having my brain on empty and not paying to much attention to what it was suggesting. So I sent a company wide memo that changed a name from Hugh Hagel to Huge Bagel. Gary
RE: Origin of power symbols 0 and 1?
Rich, I remember asking this question of a senior BS safety committee officer many years ago. His opinion was that these symbols went back to steam systems indicating the status of the boiler output i.e. the closed valve or the open line. He went to great pains to inform me that these were not alphanumeric and so were not binary states as I had originally thought. We might all be wrong, however, and these may have as much real meaning as 'CE Marking'. Regards, Alan Brewster Senior Systems Safety Engineer -- From: Rich Nute [SMTP:ri...@sdd.hp.com] Sent: Tuesday, October 08, 2002 10:19 AM To: emc-p...@majordomo.ieee.org Subject: Origin of power symbols 0 and 1? I am looking for the origin of the power symbols 0 (off) and 1 (on). The earliest standards that I have are CEE 10 and similar where the standard specifies something like: Where a rotary switch is used for power, the 0 position shall be off and the 1 and higher position shall be on. Do you have the specific wording? Do you have something earlier than the CEE standards? Thanks for your help! Rich Richard Nute Hewlett-Packard Company 16399 West Bernardo Drive San Diego, California 92127-1899 Tel: 858-655-3329 FAX: 858-655-4374 e-mail: ri...@sdd.hp.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: information safe
A jamming device? I never heard of such a th100100100100111001100101101010101010010110110101011011011011011011101 Regards, Alan Brewster Senior Systems Safety Engineer -- From: Lucian [SMTP:y...@ht.rol.cn.net] Sent: Thursday, October 03, 2002 5:27 AM To: emc-p...@majordomo.ieee.org Subject: information safe Dear Sirs, We know it's very important to keep information safe, while PC and its monitor emit signals always. One method to deal with it is shielding, another method is to place an emitter besides PC emitting signals to interfere with PC's signals. Does anybody know any information about the latter method? Thanks a lot in advance. Best regards, Lucian --- 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: EMC test report
Greetings Cecil and fellow Forumites, The best summation of test report content I have seen for a long time may be found at the following link: http://www.conformity.com/0204123s.pdf http://www.conformity.com/0204123s.pdf I would invite all to read it, irrespective of discipline. Regards, Alan Brewster Senior Systems Safety Engineer Novellus Systems, Tualatin, OR Pager: 888-917-5809 Phone 503-885-6553 -- From: cecil.gitt...@kodak.com [SMTP:cecil.gitt...@kodak.com] Sent: Thursday, April 25, 2002 4:18 AM To: emc-p...@majordomo.ieee.org Subject: EMC test report Hi All, Does FCC require that all that information be in the final report. Such as Product Manufacturer, Table of Contents, Equipment Units Tested, Equipment and Cable Configuration, List of Test Equipment( calibration data), Location of Test Site, Measurement Procedures, Reporting Measurement Data, Summary of Results... The reason I ask is that it states that Digital devices ..are to be measured for compliance using the following procedure... it doesn't say that it needs to be in the final summary. Thanks Cecil --- 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: Faying
Greeting fellow vocabularians, The root word, 'fay is ancient Scottish, meaning to have the power of prediction. Those of you that are fay may have seen this coming. I wonder if anticipating grounding is similar to expecting volts. Regards, Alan Brewster Senior Systems Safety Engineer -- From: Price, Ed [SMTP:ed.pr...@cubic.com] Sent: Monday, April 01, 2002 6:47 AM To: 'EMC-PSTC List' Subject: Faying A couple of weeks ago, there was a thread discussing bonding techniques for ground studs. I suggested that MIL-B-5087 had some nice drawings showing typical accepted military practices. Of course, MIL-B-5087 has been superseded by MIL-STD-464, but you can still find electronic copies of MIL-B-5087. Jacob Shanker read through all of the 464 sections on Bonding, and then asked me if I knew what the term faying meant. It seems that MIL-STD-464 uses that term without any definition, as if it's a very common American English word. IMHO, I consider myself to possess a rather decent vocabulary. But faying left me puzzled, even after closely reading the context of the several citings in MIL-STD-464. It's certainly not in any common usage in my part of the world. I certainly wouldn't want to call something faying at any typical US military base. So, off to the dictionary web sites. 1. Britannica says: not found. 2. Merriam Webster says: Main Entry: fay // Pronunciation: 'fA // Function: verb Etymology: Middle English feien, from Old English fEgan; akin to Old High German fuogen to fit, Latin pangere to fasten Date: before 12th century : to fit or join closely or tightly 3. Harcourt's Metallurgy Engineering Dictionary says: faying surface // Metallurgy: the interface between two metallic parts that are to be joined. 4. Finally, turning to Google in desperation for a simple explanation, I find pictures at: http://www.offroaders.com/info/tech-corner/reading/bolt-tension/bolt_tension .htm So after all this searching, I find that MIL-STD-464 faying is just a 12th Century Old English way to say facing or mating surfaces. I'm not sure how he did it, but I suspect John Woodgate is to blame for this. 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 --- 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
Work in progress vs Date of Withdrawal
Greetings All, If a vendor is in the process of building equipment and has started the manufacturing phase before the date on which a standard is superceded, can the goods still be supplied against the old standard? In particular, the introduction of EN 61000-6-2 on April 1st will leave some equipment suppliers with long lead time parts in a quandary over how to declare, especially if they might not meet the surge and dip requirements. Is there a published guidance on the treatment of material that is Work in Progress? Regards, Alan Brewster --- 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...@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://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Ethernet Lockout Tagout
Greetings, Does anyone know of a lockout/tag out cover that is small enough to be used with Cat 5 cable and RJ 45 connectors? This would in practice have a cable entry diameter of less than ½ (12.7mm). Thanks to all in advance. Alan Brewster Senior Systems Safety Engineer Novellus Systems, 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: 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: Typing Shortcuts
Bob, I must commend you for opening a can of worms that will both entertain and educate. How about: OBE - Overtaken by events OBAM - Overtaken by a Mustang Regards, Alan Brewster Senior Systems Safety Engineer Novellus Systems, 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: 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: Risk assessment
Stig, You may wish to take a look at SEMI S10. It is the basic tool used in the semiconductor equipment arena to quantify risk and hazard. It is available from www.semi.org. Regards, Alan Brewster Senior Systems Safety Engineer N Novellus Systems, Inc. (408) 570-6584 alan.brews...@novellus.com mailto:alan.brews...@novellus.com -- From: Stig Jorgensen [SMTP:jorgen...@skyskan.com] Sent: Thursday, December 07, 2000 12:25 PM To: emc-p...@ieee.org Subject: Risk assessment Hi Group, Dec 07,2000 I am in the process of establishing the potential for an injury from a hazard. I can get a reasonable 'expression' to describe the potential for a hazard to turn into an accident (event). I am looking for the words that classifies the degree of an injury. Can some one direct me to some standard definitions? Do we base it on the length of work stoppage? i.e. a minor burn on a finger tip smarts for an hour or two. A good shock working with vacuum tubes, 300V, slowed you down for the rest of the day and so on. Has some one worked out a practical scale for the degree of an injury. It can be numbers or words as long as they are defined. If it does not exist let us generate one that we all agree on.-- or most of us. When it comes to property damage I think that a monetary replacement cost would be expressed in 'small', 'medium', 'large' etc where each is defined in 'very' general monetary terms. Thank you for your assistance. Sincerely Stig W. Jorgensen jorgen...@skyskan.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. 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
