E Field measurement
Hi folks, I'm looking at using the 2 field meter method ( per 801 method ) until I my chamber is lined. Where can I still use this method, and what conditions must I impose? Thanks, Derek. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Electronic Equipment in Ambulance
Hello everybody, Need some help on this very specialized equipment. I'm now working on the compliance of a mobile communications system used in ambulance. The system consists of: i) Base station: 2 PC, 1 GPS receiver, 1 radio transceiver and 1 antenna. ii) Mobile unit: 1 display, 1 GPS receiver, 1 radio transceiver and 1 antenna. Here's the questions: 1) What directives apply to this system if we want to pass both CE and FCC, knowing that it's specifically used in ambulance? 2) What should be the configuration setup for testing this system? Should I test the base station and mobile unit separately or at the same time? (I'm asking this question because testing them separately double the charge and so it's advantageous to test them together, but knowing that they are doing long-distance communications, such configuration doesn't make sense to me.) Any help will be greatly appreciated! Alfred Ip Trimble Navigation Ltd. alfred...@trimble.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: ESRI
Hi George, A web search showed ... ESRI: Environmental Systems Research Inst., Inc. GIS: Geographic(al) Information System(s) Most likely a private thing for interfacing particular types of information. Regards, Doug McKean At 08:57 AM 7/7/99 -0400, geor...@lexmark.com wrote: Is anyone familiar with ESRI as a requirement or standard? I am fielding a question from our marketing folks as the person who usually handles what I call weird standards questions is on vacation. The requestor thought that ESRI has something to do with GIS. Neither acronym rings a bell for me. Regards, George Alspaugh Product Safety Lexmark International Inc. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: GTEM cell
Careful -- for FCC emissions it's allowed only if correlation with an OATS is achieved for a given product. For the next product, correlation may have to be re-done. For immunity to EN's, it isn't so clear. IEC 61000-4-3 is written as if any type of TEM cell is NON compliant, but a draft annex is now being circulated that would allow TEM cells, but ONLY if a TEM wave can be demonstrated throughout the frequency range being used (3-axis measurement, undesired vectors 6 db down). For emissions to EN's, TEM cells are not allowed for compliance testing. Mike Hopkins mhopk...@keytek.com -Original Message- From: Leslie Bai [SMTP:leslie_...@yahoo.com] Sent: Wednesday, July 07, 1999 11:25 AM To: Qu Pingyu; 'emc' Subject: Re: GTEM cell Pingyu, I guess GTEM cell is a good choice for your case. Pls refer to IEC61000-4-3 (for immunity) and ANSI C63.4 (for emission), GTEM cell is not only recognized for pre-compliance test but also can be used for compliance test as long as some correlation can be achieved. We did correlation through both modeling, simulation using FDTD and actual testing to verify the results. We are using GTEM cell for many different kinds of products compliance test and PCB trouble-shooting. It is pretty good. But you have to pay attention to the uniformity volume of GTEM cell, it's a bit tricky, especially the cabling of EUT may affect the result, thus, during the correction, a harness is supposed to be used to simulate the EUT cabling. Hope it helps. Leslie --- Qu Pingyu pin...@ime.org.sg wrote: Hello, Everyone: I have some questions regarding the GTEM cell. Here in our Institute we are considering setting up some EMC measurement capability for precompliance testing. The EUTs we are dealing with are not very large, probably not larger than a desktop PC. Do you think that GTEM cell is a good choice ? Do many of you use GTEM as a precompliance testing facility ? Your comments are highly appreciated. Regards Qu Pingyu - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: connectors that meet hipot requirements
Aren't there 0.156 connectors by Amp or Molex? At 01:21 PM 7/7/99 -0400, Beard, Susan wrote: Anyone know of any connectors with 0.1 spacings that survive a 2000 volt rms hipot requirement? Susan Beard - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
CSA C22.2 No. 950
Your question regards marking requirements. For safety standards only, you need only the CSA or C-UL mark with accompanying file number etc. For EMC markings (not a IEC 60950 issue) you may use something like the following: CANADA ICES-003, CLASS B (English) CANADA NMB-003, CLASSE B (French) Any manuals will need to be available in both English and French. George Alspaugh Lexmark International Inc. -- Forwarded by George Alspaugh/Lex/Lexmark on 07/07/99 03:15 PM --- donald%hq.rossvideo@interlock.lexmark.com on 07/07/99 10:07:49 AM Please respond to donald%hq.rossvideo@interlock.lexmark.com To: emc-pstc%ieee@interlock.lexmark.com cc: Subject: CSA C22.2 No. 950 Could someone with a canadian version of the ITE 950 standard indicate whether or not they are aware of any additions to the marking requirements from that of the IEC 950 version. I have a copy of the IEC standard but would like to avoid purchasing the Canadian version, at least at this time. The markings I had in mind, would be those that maybe required to address both Canadian official languages. Any help would be appreciated. Donald McElheran Ross Video Ltd. Product Development Co-ordinator - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
connectors that meet hipot requirements
Anyone know of any connectors with 0.1 spacings that survive a 2000 volt rms hipot requirement? Susan Beard - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
EMC - Malaysia Nepal
Do Malaysia Nepal require EMC approval (I believe Malaysia does?)? If so, are they based on, or do they accept CE approval (for ITE equipement)? Thanks. John A. Juhasz Product Qualification Compliance Engr. Fiber Options, Inc. 80 Orville Dr. Suite 102 Bohemia, NY 11716 USA Tel: 516-567-8320 ext. 324 Fax: 516-567-8322 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: ESRI
George, ESRI is a privately held company that makes GIS (geographic information systems, i.e. maps, satellite photos, etc) software. go to http://www.esri.com/index.html for more details. They are the big dogs in the yard in this business. I believe their software is compatible with many graphical standards for output devices (printers, plotter, etc). Also there is a Open GIS Consortium that is actively developing open standards for that industry. ESRI is a part of that. Like our marketing guys, I think they are just looking for another market to sell output devices to. The GIS market is very demanding of quality reproduction in their output devices. Hope this helps. Contact me directly if I can be of more help. Regards, Richard Cass Iris Graphics, Inc. A Scitex Company Bedford, MA 01730 781 276-5424 richard_c...@irisinc.scitex.com -Original Message- From: geor...@lexmark.com [mailto:geor...@lexmark.com] Sent: Wednesday, July 07, 1999 8:58 AM To: emc-p...@majordomo.ieee.org Subject: ESRI Is anyone familiar with ESRI as a requirement or standard? I am fielding a question from our marketing folks as the person who usually handles what I call weird standards questions is on vacation. The requestor thought that ESRI has something to do with GIS. Neither acronym rings a bell for me. Regards, George Alspaugh Product Safety Lexmark International Inc. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: Re:EMC Experiments
You might contact the Education Committee at the IEEE. They are committed to the Education on EMC and have put on may successful experiment demos at EMC Conferences. (As the Workshop/Tutorial Experiments Chair for Denver 1998 I can personally attest to thet quality of the expeiments and demo). The IEEE Website has all the info you need. Thank you Charles Grasso Advisory Engineer StorageTek 2270Sth 88th Street Louisville CO 80027 M/S 4247. Tel:303-673-2908 Fax:303-661-7115 email:gra...@louisville.stortek.com Web Site: http://www.ewh.ieee.org/r5/denver/rockymountainemc/ -Original Message- From: jim_bac...@monarch.com [mailto:jim_bac...@monarch.com] Sent: Wednesday, July 07, 1999 8:07 AM To: emc-p...@majordomo.ieee.org Subject: Fwd:Re:EMC Experiments posting for a non list member. Please inculde him on your replies.. Jim Reply Separator Subject:EMC Experiments Author: Muriel Bittencourt de Liz mur...@grucad.ufsc.br List-Post: emc-pstc@listserv.ieee.org Date: 7/5/99 10:39 AM Dear Listmembers, I'm beggining to develop/create some experiments of Electromagnetic Compatibility for electrical engineering graduation students. Anyone has any information to share with me? Any experiment that can be done in a relatively well-equiped lab will be welcome... Thanks in advance for your help Muriel -- == Muriel Bittencourt de Liz GRUCAD - Grupo de Conceptao e Anßlise de Dispositivos EletromagnTticos Universidade Federal de Santa Catarina Caixa Postal - 476 88040-900 - Florianopolis - SC - BRASIL Fone: +55.48.331.9649 - Fax: +55.48.234.3790 e-mail: mur...@grucad.ufsc.br Received: from ruebert.ieee.org ([199.172.136.3]) by mail.monarch.com with SMTP (IMA Internet Exchange 3.11) id 0003BB94; Tue, 6 Jul 1999 16:13:50 -0400 Received: by ruebert.ieee.org (8.8.8+Sun/8.8.8) id PAA26135 Received: from gemini.ieee.org by ruebert.ieee.org (8.8.8+Sun/8.8.8) with ESMTP id PAA26117; Tue, 6 Jul 1999 15:17:40 -0400 (EDT) Received: from mail.monarch.com (mail.monarch.com [208.159.116.20]) by gemini.ieee.org (8.9.3/8.9.3) with ESMTP id PAA28433 for emc-p...@majordomo.ieee.org; Tue, 6 Jul 1999 15:14:28 -0400 (EDT) Received: from ccMail by mail.monarch.com (IMA Internet Exchange 3.11) id 0003B95B; Tue, 6 Jul 1999 15:12:03 -0400 Mime-Version: 1.0 List-Post: emc-pstc@listserv.ieee.org Date: Tue, 6 Jul 1999 07:49:16 -0400 Message-ID: 0003b95b.c22...@mail.monarch.com From: jim_bac...@mail.monarch.com (Jim Bacher) Subject: Re:EMC Experiments To: Muriel Bittencourt de Liz mur...@grucad.ufsc.br, emc-p...@majordomo.ieee.org Content-Type: text/plain; charset=US-ASCII Content-Description: cc:Mail note part X-MIME-Autoconverted: from quoted-printable to 8bit by ruebert.ieee.org id PAA26119 X-Resent-To: emc-pstc-ad...@ieee.org Precedence: bulk Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by ruebert.ieee.org id PAA26135 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
CSA C22.2 No. 950
Donald, et al, If you intend to sell your product in North America you can find all of the requirements in the Bi-national CSS C22.2 no 950/ UL 1950 standard. There are a number of National Deviations that need to be considered along with the language issue (of which there are about a dozen pages on markings and instructions). If you still don't want to buy the standard, give me a call - that's what I do... :) br, Pete Perkins - - - - - Peter E Perkins Principal Product Safety Consultant Tigard, ORe 97281-3427 +1/503/452-1201 phone/fax p.perk...@ieee.org email visit our website: http://ourworld.compuserve.com/homepages/peperkins - - - - - - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: US position paper on Harmonics
The attached document should help. -Original Message- From: Chris Olliffe chris-olli...@psion.com To: emc_p...@ieee.org emc_p...@ieee.org; t...@world.std.com t...@world.std.com List-Post: emc-pstc@listserv.ieee.org Date: Wednesday, July 07, 1999 10:54 AM Subject: US position paper on Harmonics Recently I recall someone posting a link to a US position paper about the harmonics standard EN61000-3-2. I have had a look through the back listings in the conference hall but I cannot find it. If someone could point me to it I would be grateful. Thanks, in advance. Chris Olliffe USCCEMC 99-01.PDF Description: Adobe PDF document
US position paper on Harmonics
Recently I recall someone posting a link to a US position paper about the harmonics standard EN61000-3-2. I have had a look through the back listings in the conference hall but I cannot find it. If someone could point me to it I would be grateful. Thanks, in advance. Chris Olliffe
Re: GTEM cell
Pingyu, I guess GTEM cell is a good choice for your case. Pls refer to IEC61000-4-3 (for immunity) and ANSI C63.4 (for emission), GTEM cell is not only recognized for pre-compliance test but also can be used for compliance test as long as some correlation can be achieved. We did correlation through both modeling, simulation using FDTD and actual testing to verify the results. We are using GTEM cell for many different kinds of products compliance test and PCB trouble-shooting. It is pretty good. But you have to pay attention to the uniformity volume of GTEM cell, it's a bit tricky, especially the cabling of EUT may affect the result, thus, during the correction, a harness is supposed to be used to simulate the EUT cabling. Hope it helps. Leslie --- Qu Pingyu pin...@ime.org.sg wrote: Hello, Everyone: I have some questions regarding the GTEM cell. Here in our Institute we are considering setting up some EMC measurement capability for precompliance testing. The EUTs we are dealing with are not very large, probably not larger than a desktop PC. Do you think that GTEM cell is a good choice ? Do many of you use GTEM as a precompliance testing facility ? Your comments are highly appreciated. Regards Qu Pingyu - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
CSA C22.2 No. 950
Could someone with a canadian version of the ITE 950 standard indicate whether or not they are aware of any additions to the marking requirements from that of the IEC 950 version. I have a copy of the IEC standard but would like to avoid purchasing the Canadian version, at least at this time. The markings I had in mind, would be those that maybe required to address both Canadian official languages. Any help would be appreciated. Donald McElheran Ross Video Ltd. Product Development Co-ordinator - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Fwd:Re:EMC Experiments
posting for a non list member. Please inculde him on your replies.. Jim Reply Separator Subject:EMC Experiments Author: Muriel Bittencourt de Liz mur...@grucad.ufsc.br List-Post: emc-pstc@listserv.ieee.org Date: 7/5/99 10:39 AM Dear Listmembers, I'm beggining to develop/create some experiments of Electromagnetic Compatibility for electrical engineering graduation students. Anyone has any information to share with me? Any experiment that can be done in a relatively well-equiped lab will be welcome... Thanks in advance for your help Muriel -- == Muriel Bittencourt de Liz GRUCAD - Grupo de Conceptao e Anßlise de Dispositivos EletromagnTticos Universidade Federal de Santa Catarina Caixa Postal - 476 88040-900 - Florianopolis - SC - BRASIL Fone: +55.48.331.9649 - Fax: +55.48.234.3790 e-mail: mur...@grucad.ufsc.br Received: from ruebert.ieee.org ([199.172.136.3]) by mail.monarch.com with SMTP (IMA Internet Exchange 3.11) id 0003BB94; Tue, 6 Jul 1999 16:13:50 -0400 Received: by ruebert.ieee.org (8.8.8+Sun/8.8.8) id PAA26135 Received: from gemini.ieee.org by ruebert.ieee.org (8.8.8+Sun/8.8.8) with ESMTP id PAA26117; Tue, 6 Jul 1999 15:17:40 -0400 (EDT) Received: from mail.monarch.com (mail.monarch.com [208.159.116.20]) by gemini.ieee.org (8.9.3/8.9.3) with ESMTP id PAA28433 for emc-p...@majordomo.ieee.org; Tue, 6 Jul 1999 15:14:28 -0400 (EDT) Received: from ccMail by mail.monarch.com (IMA Internet Exchange 3.11) id 0003B95B; Tue, 6 Jul 1999 15:12:03 -0400 Mime-Version: 1.0 List-Post: emc-pstc@listserv.ieee.org Date: Tue, 6 Jul 1999 07:49:16 -0400 Message-ID: 0003b95b.c22...@mail.monarch.com From: jim_bac...@mail.monarch.com (Jim Bacher) Subject: Re:EMC Experiments To: Muriel Bittencourt de Liz mur...@grucad.ufsc.br, emc-p...@majordomo.ieee.org Content-Type: text/plain; charset=US-ASCII Content-Description: cc:Mail note part X-MIME-Autoconverted: from quoted-printable to 8bit by ruebert.ieee.org id PAA26119 X-Resent-To: emc-pstc-ad...@ieee.org Precedence: bulk Content-Transfer-Encoding: quoted-printable X-MIME-Autoconverted: from 8bit to quoted-printable by ruebert.ieee.org id PAA26135 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
RE: UL1950/EN 60 950 Spacings
Peter, We have the same situation with my company's products. We use the nominal line to neutral voltage even when no neutral is present. Our experience has been that the certifying agencies accept this. Best Regards, Jeff Jenkins Senior Regulatory Compliance Engineer Advanced Energy Industries, Inc. Fort Collins, CO USA Opinions are my own, etc. -Original Message- From: pe...@itl.co.il [mailto:pe...@itl.co.il] Sent: Tuesday, July 06, 1999 1:57 PM To: emc-p...@ieee.org Cc: al...@itl.co.il; ico...@itl.co.il; zoh...@itl.co.il; plei...@itl.co.il; sgn...@itl.co.il Subject: UL1950/EN 60 950 Spacings Dear All, The subject standards specify that Tables 3, 4, 5 (clearances) are based on nominal line to neutral supply voltages. For equipment powered by 3 phase (L1,L2,L3 and earth) WITHOUT a neutral, how should the nominal supply voltage be treated? Regards, Peter PETER S. MERGUERIAN MANAGING DIRECTOR PRODUCT TESTING DIVISION I.T.L. (PRODUCT TESTING) LTD. HACHAROSHET 26, P.O.B. 211 OR YEHUDA 60251, ISRAEL TEL: 972-3-5339022 FAX: 972-3-5339019 E-MAIL: pe...@itl.co.il Visit our Website: http://www.itl.co.il - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: ESRI
Hello George, I usually plug unknown terms (such as ESRI) into the Altavista Search Tool as a first-shot at identifying them. This one yielded lotsa hits for www.esri.com which appears to be a GIS Software and Training outfit. That could be the one you are looking for ? Regards, Art Michael, Editor - Int'l Product Safety News * * * * * * * * * * * * * * * * * * * * * * * International Product Safety Bookshop * * Check out our current offerings! * * http://www.safetylink.com/bookshop.html * * * * Another service of the Safety Link* * www.safetylink.com * * * * * * * * * * * * * * * * * * * * * * * - On Wed, 7 Jul 1999 geor...@lexmark.com wrote: Is anyone familiar with ESRI as a requirement or standard? I am fielding a question from our marketing folks as the person who usually handles what I call weird standards questions is on vacation. The requestor thought that ESRI has something to do with GIS. Neither acronym rings a bell for me. Regards, George Alspaugh Product Safety Lexmark International Inc. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Modem Requirements in China
Hello, Can someone please clarify the requirements for a simple analogue modem in China. (i.e. what to design it to, regulatory testing, etc.) Any help will be very much appreciated. Tony Reynolds Principal Compliance Engineer Pitney Bowes Ltd. Tel (0) 1279 449479 Fax (0) 1279 449118 E-Mail: reyno...@pb.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: UL1950/EN 60 950 Spacings
Dear Peter, IEC 950 Second edition A4, 1996, is available to me. You can read in 2.9.1 on page 105A in the second paragraph: For all POWER SYSTEMS, the mains supply voltage in tables 3, 4 and 5 is the phase-to-neutral voltage. To discuss your case where you do not supply the neutral to your equipment, here are some explanations: Since tables 3, 4 and 5 are concerned with Clearances, the mayor contributor to the spacing requirements are the transients. Investigations in old days have shown that the transients are roughly the same on all 3 phases L1, L2 and L3 of a three-phase distribution system. Transients are categorized into Overvoltage Categories in IEC 664-1 table 1. There are other hints given to IEC 364-4-443 and IEC 38. If you follow all through this jungle you will end up with a simple equation: If you operate your equipment in Overvoltage Category II from a single phase 230 V r.m.s. or from three phases 400 V r.m.s. supply system with or without neutral connected to the equipment, you have to consider transients of 2500 V. This is the determining value for your clearance. Back to IEC 950 table 3 your insulation working voltage is up to 300 V r.m.s. in the above mentioned example, and you have found the needed row for the required clearances. Kind regards/mit freundlichen Gruessen Horst Dierich -- Peter Merguerian wrote: Dear All, The subject standards specify that Tables 3, 4, 5 (clearances) are based on nominal line to neutral supply voltages. For equipment powered by 3 phase (L1,L2,L3 and earth) WITHOUT a neutral, how should the nominal supply voltage be treated? Regards, Peter PETER S. MERGUERIAN MANAGING DIRECTOR PRODUCT TESTING DIVISION I.T.L. (PRODUCT TESTING) LTD. HACHAROSHET 26, P.O.B. 211 OR YEHUDA 60251, ISRAEL TEL: 972-3-5339022 FAX: 972-3-5339019 E-MAIL: pe...@itl.co.il Visit our Website: http://www.itl.co.il - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: Modem Requirements in China
Try at these web sites for info : http://www.typeapproval.com ( For Asia-Pacific region ). http://www.cclab.com thanks Dorababu Tony Reynolds wrote: Hello, Can someone please clarify the requirements for a simple analogue modem in China. (i.e. what to design it to, regulatory testing, etc.) Any help will be very much appreciated. Tony Reynolds Principal Compliance Engineer Pitney Bowes Ltd. Tel (0) 1279 449479 Fax (0) 1279 449118 E-Mail: reyno...@pb.com - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
GTEM cell
Hello, Everyone: I have some questions regarding the GTEM cell. Here in our Institute we are considering setting up some EMC measurement capability for precompliance testing. The EUTs we are dealing with are not very large, probably not larger than a desktop PC. Do you think that GTEM cell is a good choice ? Do many of you use GTEM as a precompliance testing facility ? Your comments are highly appreciated. Regards Qu Pingyu - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Looking for help
Hi, Bay Area Compliance Laboratory Corp. (BACL) is a test laboratory located in Silicon Valley. BACL has opening for the following positions: 1) Senior Safety Engineer: BSEE, 5 years safety experiences, familiar with UL1950, UL 1492. 2) Senior EMI engineer: BSEE, 5 years EMI experiences, Familiar with FCC Part 15, 22, 24, 90, 101, 105, CISPR 22, and CE. Fully inderstand of circuitry. If you are interesting, please fax your resume to (408) 732 9164. Thank you. John BACL - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Test equipment
Hi; I am looking for an equipment, Johnson, TVX-1. Can anyone tell me where I can find it? My e-mail address is jchanb...@msn.com. Thank you. Best Regards; John Chan - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Near Field Probes
Dear All, I would like to thank all of you for your wonderful input on the Near Field Probes information. Best Regards, Richard Lee Richard Lee Adicom Wireless, Inc. Tel: (510) 781-5520x358 26142 Eden Landing road, A-1Fax:(510) 781-5525 Hayward, California 94545
Physical Security in Euope for ATMs
Does anyone know if there are any physical security requirements or standards for ATMs in Europe? UL 291 is the US version. Best Regards, Jody Leber jle...@ustech-lab.com http://www.ustech-lab.com U. S. Technologies 3505 Francis Circle Alpharetta, GA 30004 770.740.0717 Fax: 770.740.1508 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Discrete components needle flame test
Hello Experts, While performing the Bellcore (NEBS GR-63-CORE) Needle Flame Test on electrolytic capacitors withstanding high temperature up to 105 deg.C, a break of hermeticity with subsequent release of hazardous substances may occur. Does anyone have had an experience in successfully passing the test? Could you write up on this subject or give me a pointer to any application notes addressing this issue. If my memory serves me well, a similar question was posted about a month ago or so and briefly discussed. Thanks in advance for your advice. Vitaly Gorodetsky 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
