Job Opening - Senior Telecom Test Engineer
KTL is a leading provider of test services within the telecommunications and electronics manufacturing arena. We currently have a position available at our Dallas facility for a qualified Senior Telecom Test Engineer. The ideal candidate will have experience in both digital and analog compliance testing and standards for both the domestic and European markets. This position is one of both supervisory and hands-on practical involvement. For more information regarding this and other opportunities within KTL, and who to contact please take a look at our website and check the careers link. http://www.ktl.com/worldwide.htm Thank you for taking a look. Regards, Phil Godfrey Phillip Godfrey - Manager, Product Safety KTL Dallas, Inc. 802, N.Kealy, Lewisville, Texas 75057-3136 Tel : (972) 436-9600 Fax: (972) 436-2667 http://www.ktl.com/ email : pgodf...@icomply.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
RE: 61000-4-8 Ground Plane
I don't know either I am assuming that they are just trying to standardize the test cell if you will. You're right the field of interest is inside the loop and the external lobs shouldn't be a problem whether or not the fringe with a ground plane or not, even if they did I think the ability would exist to increase the field strength for the EUT to compensate. I suppose there is something obviously wrong with my assumption but that wouldn't be the first time. Gary -Original Message- From: rehel...@mmm.com [mailto:rehel...@mmm.com] Sent: Friday, June 16, 2000 9:21 AM To: michael.sundst...@nokia.com Cc: emc-p...@majordomo.ieee.org Subject: RE: 61000-4-8 Ground Plane 61000-4-8 is an immunity test. It totally immerses the EUT in a magnetic field at 50 Hz. I still don't know what the ground plane is for. --- 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
Re: 61000-4-8 Ground Plane
On Fri, 16 June 2000, rehel...@mmm.com wrote: Can someone explain to me why a ground plane is required in the test setup for EN 61000-4-8 (power frequency magnetic fields)? Thanks, Bob Heller 3M Company --- Bob, Good question! The ground plane is described in the EN 61000-4-8 standard, but not used in many EMC testing labs. People cannot figure out the difference if using it in real test. However, there must be a reason to use it when the standard was written. Thanks. Best Regards, Barry Mab...@anritsu.com ANRITSUwww.anritsu.com Morgan Hill, CA 95037 Tel. 408-778-2000 x 4465 ___ Why pay when you don't have to? Get AltaVista Free Internet Access now! http://jump.altavista.com/freeaccess4.go ___ --- 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
RE: 61000-4-8 Ground Plane
61000-4-8 is an immunity test. It totally immerses the EUT in a magnetic field at 50 Hz. I still don't know what the ground plane is for. --- 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
RE: TNV-2 to SELV Spacing
Current editions of UL 1950/CSA 22.2 No. 950 (3rd Ed) and EN 60950 (2nd Ed 4th Amd) would require BASIC INSULATION (see 6.2.1.2) between TNV-2 SELV. I believe that a working voltage of 150VDC (Max TNV + some left over on SELV side) and 200Vpk (ringing) is generally accepted as the working voltage between TNV-2 SELV. At least this works for the labs I talk to. (UL is a bit different here, as TNV limits are lower). 150VDC would determine CREEPAGE DISTANCE, 200Vpk CLEARANCE: Table 6: (CREEPAGE, 150VDC, MG III) = 1.6mm - for the US this may be reduced to 1.5mm as the TNV limits are lower. Table 5: (CLEARANCE, 200Vpk, PD 2) = 0.9mm (Mains supply 150Vrms) Table 5: (CLEARANCE, 200Vpk, PD 2) = 1.0mm (150VrmsMains Supply300Vrms) As Helmut indicated below, BASIC INSULATION (clause 6.2.1.2) may not be required if your SELV ckt has a PE connection...but this, of course, may not be acceptable in all countries... Also, I do not know that anyone (CB's at least) is testing to IEC 60950 yet? Let me know if I'm wrong on this.. Regards, Mel Pedersen, Midcom Inc. mailto:mpeder...@midcom-inc.com -Original Message- From: helmut.hi...@alcatel.de [mailto:helmut.hi...@alcatel.de] Sent: Friday, June 16, 2000 1:34 AM To: gary.mcintu...@worldwidepackets.com; emc-p...@ieee.org Subject: AW: TNV-2 to SELV Spacing Gary, between TNV2 and PE (ground) the only requirement is functional insulation. For max TNV2 (120Vdc) the following spacings apply: clearance: 0,6mm (table 2K last column) creepage: 0,6 up to 2,4mm depending on the PD and MG (table 2L) eg for PD 2 MG IIIa 1,5mm relevant document: IEC 60950 3.ed 1999 best regards helmut hintz -- Von: Gary.McInturff / unix (gary.mcintu...@worldwidepackets.com) An: emc-p...@ieee.org Betreff: TNV-2 to SELV Spacing Datum: Donnerstag, 15. Juni 2000 16:44 Temporarily without my standard, and need a spacing requirement. Seems to me that over surface it was 1.4 mm or 1.0 mm through air, but it also seems to me that it was contingent upon whether or not the secondary was grounded or not. How about TNV-2 to ground? As always there is no room, no time and we need to spin the board. Thanks Gary --- 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 --- 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
Fwd:Re: Hong Kong, Brazil and India; EMC and Safety Requirem
forwarding for Harry... Forward Header_ Subject:Re: Hong Kong, Brazil and India; EMC and Safety Requirements Author: Harry Yeung harry_ye...@hkstc.com List-Post: emc-pstc@listserv.ieee.org Date: 6/16/00 9:23 AM Dear Mr Merguerian Your enquiry is related to us by Mr Loop. We are happy to be of service to you. We can help you for the product approvals in Hong Kong and China. In order that we can answer your questions, we need to know what product(s) you are going to ship to these places. Pls give us that information and we will reply to you in due course. Rgds Harry Yeung - Original Message - From: Loop, Robert rl...@hnt.wylelabs.com To: Peter Merguerian pmerguer...@itl.co.il Cc: emc-p...@majordomo.ieee.org; harry_ye...@hkstc.com Sent: Friday, June 16, 2000 1:59 AM Subject: RE: Hong Kong, Brazil and India; EMC and Safety Requirements Peter: For EMC and Safety for Hong Kong and PRC, please contact Mr. Harry Yeung of the Hong Kong Standards and Testing Centre. His e-mail address is harry_ye...@hkstc.com. I recently had the opportunity to meet Mr. Yeung and was most impressed with his extensive knowledge. My regrets that I cannot help you with Brazilian and Indian requirements. Sincerely, Robert Loop Engineering Supervisor Wyle Laboratories Product Safety ph - (256) 837-4411 x313 fax- (256) 721-0144 e-mail: rl...@hnt.wylelabs.com -- From: Peter Merguerian[SMTP:pmerguer...@itl.co.il] Reply To: Peter Merguerian Sent: Thursday, June 15, 2000 9:53 AM To: emc-p...@majordomo.ieee.org Subject: Hong Kong, Brazil and India; EMC and Safety Requirements Hello All! Anyone can help with the safety emc requirements in the countries specified above? Thanks Peter Merguerian Managing Director Product Testing Division I.T.L. (Product Testing) Ltd. Hacharoshet 26, POB 211 Or Yehuda 60251, Israel Tel: 972-3-5339022 Fax: 972-3-5339019 e-mail: pmerguer...@itl.co.il website: http://www.itl.co.il --- 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
61000-4-8 Ground Plane
Can someone explain to me why a ground plane is required in the test setup for EN 61000-4-8 (power frequency magnetic fields)? Thanks, Bob Heller 3M Company --- 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
Re: Bellcore GP-1089 emissions testing: LISN test setup
Folks, The original release of GR-1089 specified a 10 uF feedthrough for conducted emissions. A subsequent revision of the document, GR-1089 Issue 2, December 1997, specified LISN's for conducted emissions in place of the feedthrough caps. --- 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
RE: Conversion program
Here is the original E-mail from November 1999: For those of you interested, there is a free conversion program located at the following address: http://www.joshmadison.com/software http://www.joshmadison.com/software http://www.joshmadison.com/software http://www.joshmadison.com/software After opening this site, go to CONVERT for a description. I have found this program to be quite useful for conversion tasks between different units, e.g. temperature, power, etc. Hopefully you will find this useful as well. -Original Message- From: Hjálmar Árnason [SMTP:hjal...@tnet.is] Sent: Friday, June 16, 2000 4:54 AM To: emc-p...@majordomo.ieee.org Subject:Conversion program Hi everyone, some months back there was an email going around that had attached a conversion software i.e. converting dB-that to dB-this and so on. Is there anyone out there that can resend me this program. Thanks in advance.. Hjalmar. STIKLA ehf Hjalmar Arnason Manager Technical Operations Hlidarsmara 11 200 Kopavogi Iceland. hjal...@tetra.is STIKLA ehf is a TETRA operator in Iceland and you can find us at www.tetra.is --- 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
Conversion program
Hi everyone, some months back there was an email going around that had attached a conversion software i.e. converting dB-that to dB-this and so on. Is there anyone out there that can resend me this program. Thanks in advance.. Hjalmar. STIKLA ehf Hjalmar Arnason Manager Technical Operations Hlidarsmara 11 200 Kopavogi Iceland. hjal...@tetra.is STIKLA ehf is a TETRA operator in Iceland and you can find us at www.tetra.is --- 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
RE: SAE testing
Dear All, Last year I had an ITE product for use in vehicles Listed under UL1950. At 13:11 15/06/2000 -0500, Loop, Robert wrote: Cyril: I don't believe there is a safety (UL) requirement for ITE equipment that will be installed in a vehicle. I have been writing a test plan for a customer that requires extensive testing to SAE J1455 and J1113 and there is no safety involved. It is basically environmental, transient voltage, immunity and emissions based testing. If you need more specifics on individual tests contained in those two standards, please contact me directly. Sincerely, Robert Loop Engineering Supervisor Wyle Laboratories Product Safety ph - (256) 837-4411 x313 fax- (256) 721-0144 e-mail: rl...@hnt.wylelabs.com -- From:Binnom, Cyril A[SMTP:binno...@ems-t.com] Reply To:Binnom, Cyril A Sent:Thursday, June 15, 2000 10:23 AM To: emc-pstc Subject: SAE testing Group, I have an In-Vehicle Computer (ITE equipment) that will be implemented into heavy duty trucks. I am unfamiliar with SAE requirements and only have been told that I will have to be compliant to J1455. I am looking for some clarification on if this is the correct standard, (if it is not then what is) and if this is a compliance issue that has to be addressed or if testing is a matter of choice. Thank you in advance for your help Cyril A. Binnom Jr. EMI/EMC Approvals Engineer (770) 447-4224 Ext.3240 (770) 447-6928 Fax e-mail binno...@lxe.com Visit Our Website at: http://www.lxe.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 Peter Merguerian Managing Director Product Testing Division I.T.L. (Product Testing) Ltd. Hacharoshet 26, POB 211 Or Yehuda 60251, Israel Tel: 972-3-5339022 Fax: 972-3-5339019 e-mail: pmerguer...@itl.co.il website: http://www.itl.co.il --- 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
AW: TNV-2 to SELV Spacing
Gary, between TNV2 and PE (ground) the only requirement is functional insulation. For max TNV2 (120Vdc) the following spacings apply: clearance: 0,6mm (table 2K last column) creepage: 0,6 up to 2,4mm depending on the PD and MG (table 2L) eg for PD 2 MG IIIa 1,5mm relevant document: IEC 60950 3.ed 1999 best regards helmut hintz -- Von: Gary.McInturff / unix (gary.mcintu...@worldwidepackets.com) An: emc-p...@ieee.org Betreff: TNV-2 to SELV Spacing Datum: Donnerstag, 15. Juni 2000 16:44 Temporarily without my standard, and need a spacing requirement. Seems to me that over surface it was 1.4 mm or 1.0 mm through air, but it also seems to me that it was contingent upon whether or not the secondary was grounded or not. How about TNV-2 to ground? As always there is no room, no time and we need to spin the board. Thanks Gary --- 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
RE: CE Markings for A.C. Mains
Hello Joe, What is the reference for the markings? Depending on the standard used for a mains plug you may be required to mark the terminals L and/or N on the plug. However, this usually applies to rewireable mains plugs and not molded ones. Regards, +=+ |Ronald R. Wellman|Voice : 408-345-8229 | |Agilent Technologies |FAX : 408-345-8630 | |5301 Stevens Creek Blvd.,|E-Mail: ron_well...@agilent.com| |Mailstop 51L-SQ |WWW : http://www.agilent.com | |Santa Clara, California 95052 USA| | +=+ | Common sense is the collection of prejudices acquired by age | | eighteen. - Albert Einstein | +=+ -Original Message- From: bur...@andovercontrols.com [mailto:bur...@andovercontrols.com] Sent: Wednesday, June 14, 2000 8:31 AM To: emc-p...@majordomo.ieee.org Subject: CE Markings for A.C. Mains Hi Group, Does anyone know the clause or statement that identifies L for Line voltage and N for Neutral A.C. mains marking in the LVD or any EU standard published? I need to provide proof for our engineering team. Thank you in advance for your help. Joe Josiah P.Burch Compliance Engineer II Andover Controls Corporation 300 Brickstone Square Andover,MA 01810 (978)-470-0555 x335 (978)-470-3615 FAX --- 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
