Ferrite snap-on rfi suppression for cable in AM BCB
Does anyone out there know of a product or material that could be clamped or formed around an installed cable and be absorptive, not inductive, in the low end of the AM BCB (around 500 - 800 kHz)? Thank you, Ken Javor Phone: (256) 650-5261 - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Another Cancer Scare?
In message 201048ea81ba0745aca78e4cc883900103171...@desmdswms201.des.grplnk.net, dated Tue, 12 Aug 2008, Haynes, Tim (SELEX GALILEO, UK) tim.hay...@selexgalileo.com writes: there is no contest - I will keep using the mobile phone but it is TOO RISKY to go to work! But DO get up in the morning - most people die in bed. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Either we are causing global warming, in which case we may be able to stop it, or natural variation is causing it, and we probably can't stop it. You choose! John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Another Cancer Scare?
So a health risk assessor would recommend you not to go to bed then .. Gert Gremmen Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens John Woodgate Verzonden: Tuesday, August 12, 2008 11:21 AM Aan: emc-p...@ieee.org Onderwerp: Re: Another Cancer Scare? In message 201048ea81ba0745aca78e4cc883900103171...@desmdswms201.des.grplnk.net, dated Tue, 12 Aug 2008, Haynes, Tim (SELEX GALILEO, UK) tim.hay...@selexgalileo.com writes: there is no contest - I will keep using the mobile phone but it is TOO RISKY to go to work! But DO get up in the morning - most people die in bed. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Either we are causing global warming, in which case we may be able to stop it, or natural variation is causing it, and we probably can't stop it. You choose! John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Ferrite snap-on rfi suppression for cable in AM BCB
I do not think so. Unless you are ready for huge volumes of ferrite. Normal snap-on ferrites (large ones) are effective only from 50 MHz off, and the effect may be improved at the cost of it’s effectiveness in the 100’s of MHz range by winding the cable 2 -3 times through the ferrite. So I expect that you will need at least 100 time s the volume of an ordinary ferrite clamp to get some effect. And it will be partially inductive too…. A solution may be using a high mu ring ferrite of suitable dimensions as used in transformers and creating a secondary winding (current transformer) with a suitable secondary circuit to absorb the frequencies you search to suppress. ( I was thinking of a parallel resonance LCR circuit) Outside resonance the LC has a low impedance, so has the primary When in resonance the R transforms to the primary with the ratio of the windings squared. Anyway, the effect is limited to the impedance the ferrite has without secondary, and the transformed R may not suit your requirements. Gert Gremmen Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens Ken Javor Verzonden: Tuesday, August 12, 2008 6:59 AM Aan: Untitled Onderwerp: Ferrite snap-on rfi suppression for cable in AM BCB Does anyone out there know of a product or material that could be clamped or formed around an installed cable and be absorptive, not inductive, in the low end of the AM BCB (around 500 - 800 kHz)? Thank you, Ken Javor Phone: (256) 650-5261 - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Ferrite snap-on rfi suppression for cable in AM BCB
At work we bought some giant Ferrishield snap-on beads for 200$US each. They'r e really only useful for troubleshooting and we got them because we need to go over 5cm diameter cables. 5cm ID, and 115mm OD. VERY heavy. But even with their size and weight, teh material provided would be ineffective at the frequencies used in this application. How about SMPS cores? Or possibly high end audio transformers? Cortland KA5S - Original Message - From: Gert Gremmen mailto:g.grem...@cetest.nl To: Ken Javor mailto:ken.ja...@emccompliance.com ;Untitled mailto:emc-p...@ieee.org Sent: 8/12/2008 7:23:49 AM Subject: RE: Ferrite snap-on rfi suppression for cable in AM BCB I do not think so. Unless you are ready for huge volumes of ferrite. Normal snap-on ferrites (large ones) are effective only from 50 MHz off, and the effect may be improved at the cost of it’s effectiveness in the 100’s of MHz range by winding the cable 2 -3 times through the ferrite. So I expect that you will need at least 100 time s the volume of an ordinary ferrite clamp to get some effect. And it will be partially inductive too…. A solution may be using a high mu ring ferrite of suitable dimensions as used in transformers and creating a secondary winding (current transformer) with a suitable secondary circuit to absorb the frequencies you search to suppress. ( I was thinking of a parallel resonance LCR circuit) Outside resonance the LC has a low impedance, so has the primary When in resonance the R transforms to the primary with the ratio of the windings squared. Anyway, the effect is limited to the impedance the ferrite has without secondary, and the transformed R may not suit your requirements. Gert Gremmen Van: emc-p...@ieee.org [mailto:emc-p...@ieee.org] Namens Ken Javor Verzonden: Tuesday, August 12, 2008 6:59 AM Aan: Untitled Onderwerp: Ferrite snap-on rfi suppression for cable in AM BCB Does anyone out there know of a product or material that could be clamped or formed around an installed cable and be absorptive, not inductive, in the low end of the AM BCB (around 500 - 800 kHz)? Thank you, Ken Javor Phone: (256) 650-5261 - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: NEBS Compliant Components
There is so much involved in NEBS testing that it would be hard to qualify individual components. A hard disk or power supply might pass the temperature and vibration tests, but the final configuration will determine EMI performance. The fire testing is impossible to do on most of these components unless they are sealed in their own case. The high cost of even limited NEBS testing would discourage most component manufacturers from doing much of the work. I can't imagine somebody investing the money for the testing unless they have a likely customer lined up. Filters are one of the few exceptions. They can be tested to see if they will contain a fire within the enclosure and they don't need to do much else. (They may need to help provide part of the EMI screening, but that isn't too difficult to analyze.) Because of their simplicity, little testing is required. However, you need to find out what is covered by the NEBS compliance of the filter. How has the vendor tested it? Look closely at the chassis components; they need to contain a fire should it occur. That is one of the nastier tests. Choose components with a minimum of fuel for the fire. The method of assembling the components will determine a lot of the vibration and EMI performance. Ted Eckert The opinions expressed are my own and do not necessarily reflect those of my employer. --- On Mon, 8/11/08, Christine Rodham chrisrod...@yahoo.com wrote: From: Christine Rodham chrisrod...@yahoo.com Subject: NEBS Compliant Components To: emc-p...@ieee.org Date: Monday, August 11, 2008, 12:07 PM Hi List Members, We are modifying an existing Networking Security product so it may reside in a NEBS environment. Does anyone know of a list of HW ( see below) that you can purchase off the shelf that is already NEBS compliant. ( Most of our HW is from off the shelf components) I know there is no guarantee the final product will meet NEBS by using NEBS components but we thought it would be a good idea to pick NEBS certified components from the start. For example we already found an air filter that is marked NEBS compliant. ( Universal Air Filter ) If anyone is interested I will compile a list of the NEBS certified components and send it out to the List Members. Mother-Boards Power Supplies HDD/RAID CPU / Memory Chassis Thank you! Christine Rodham - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RoHs Compliance - any pointers?
Hi all, I have been tasked with looking into RoHs requirements. Is there a definitive source of information that I can use? (Gooling RoHs has way to many hits!) Thanks!! Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t) 3033022...@vtext.com (e) charles.gra...@echostar.com (e2) chasgra...@gmail.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RoHs Compliance - any pointers?
http://www.rohs.gov.uk/ is a good starting point regards Charlie From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Grasso, Charles Sent: 12 August 2008 17:29 To: emc-p...@ieee.org Subject: RoHs Compliance - any pointers? Hi all, I have been tasked with looking into RoHs requirements. Is there a definitive source of information that I can use? (Gooling RoHs has way to many hits!) Thanks!! Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t) 3033022...@vtext.com (e) charles.gra...@echostar.com (e2) chasgra...@gmail.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Internal Virus Database is out of date. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.6.0/1601 - Release Date: 8/8/2008 9:02 AM - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Excess EMC Test Equipment For Sale
The following EMCO test equipments are offered at 1/2 current prices: EMCO 3301B active E-field monopole antenna $1600. EMCO 6502 H field loop antenna $1800. EMCO 3825 25 Amp LISN $1800. 240 X 240 2KVA isolation transformer $900. Don Clayton ESR Engineering Inc. Internal Virus Database is out-of-date. Checked by AVG. Version: 7.5.524 / Virus Database: 270.5.12/1590 - Release Date: 8/4/2008 8:09 AM - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: NEBS Compliant Components
Nothing I say represents the opinions or policy of my employer. I very much concur with Mr Eckert. NEBS for 'components' is seldom cost effective for anything other than very simple stuff, and may not be representative of the component's performance in the end-use installation. My employer has had several requests for NEBS-certified power supplies, but only one customer was willing to pay the lab cost. In general, I know that that my power supplies will pass most (if not all) NEBS, if properly installed, because of the way I conduct EMC scans, safety Type Tests, and HALT. And there are several other power supply and transformer mfrs that do the same thing. Then there was the customer that mounted a power supply with two #2 screws (the mounting PEMs were for four #6 screws), then proceeded to complain that the unit could not handle shock/vibration tests. Stupidity should be very painful. luck, Brian From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Ted Eckert Sent: Tuesday, August 12, 2008 9:20 AM To: emc-p...@ieee.org Subject: Re: NEBS Compliant Components There is so much involved in NEBS testing that it would be hard to qualify individual components. A hard disk or power supply might pass the temperature and vibration tests, but the final configuration will determine EMI performance. The fire testing is impossible to do on most of these components unless they are sealed in their own case. The high cost of even limited NEBS testing would discourage most component manufacturers from doing much of the work. I can't imagine somebody investing the money for the testing unless they have a likely customer lined up. Filters are one of the few exceptions. They can be tested to see if they will contain a fire within the enclosure and they don't need to do much else. (They may need to help provide part of the EMI screening, but that isn't too difficult to analyze.) Because of their simplicity, little testing is required. However, you need to find out what is covered by the NEBS compliance of the filter. How has the vendor tested it? Look closely at the chassis components; they need to contain a fire should it occur. That is one of the nastier tests. Choose components with a minimum of fuel for the fire. The method of assembling the components will determine a lot of the vibration and EMI performance. Ted Eckert The opinions expressed are my own and do not necessarily reflect those of my employer. --- On Mon, 8/11/08, Christine Rodham chrisrod...@yahoo.com wrote: From: Christine Rodham chrisrod...@yahoo.com Subject: NEBS Compliant Components To: emc-p...@ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org List-Post: emc-pstc@listserv.ieee.org Date: Monday, August 11, 2008, 12:07 PM Hi List Members, We are modifying an existing Networking Security product so it may reside in a NEBS environment. Does anyone know of a list of HW ( see below) that you can purchase off the shelf that is already NEBS compliant. ( Most of our HW is from off the shelf components) I know there is no guarantee the final product will meet NEBS by using NEBS components but we thought it would be a good idea to pick NEBS certified components from the start. For example we already found an air filter that is marked NEBS compliant. ( Universal Air Filter ) If anyone is interested I will compile a list of the NEBS certified components and send it out to the List Members. Mother-Boards Power Supplies HDD/RAID CPU / Memory Chassis Thank you! Christine Rodham - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Copies of CNS standards
Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t) 3033022...@vtext.com (e) charles.gra...@echostar.com (e2) chasgra...@gmail.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Copies of CNS standards
may not be safe for some browsers - www.cnsonline.com.tw/en/ also, ANSI has CNS - http://webstore.ansi.org From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Grasso, Charles Sent: Tuesday, August 12, 2008 10:25 AM To: emc-p...@ieee.org Subject: Copies of CNS standards Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: RoHs Compliance - any pointers?
If you are looking for a good RoHS consultant, contact Walter Jager: Mr. Walter Jager, 50 Delamere Drive, Stittsville, ON K2S 1R2 Canada Phone: (613) 836-4181 Fax: (613) 836-7172 email: wja...@rohs-consulting.com URL: www.rohs.ca www.rohs-consulting.com LinkedIn: http://www.linkedin.com/pub/0/976/105 “Obstacles are those frightful things you see when you take your eyes off your goal.” – Henry Ford Doug Nix d...@complianceinsight.ca 519.729.5704 On Aug 12, 2008, at 12:33, Charles Blackham wrote: http://www.rohs.gov.uk/ is a good starting point regards Charlie From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Grasso, Charles Sent: 12 August 2008 17:29 To: emc-p...@ieee.org Subject: RoHs Compliance - any pointers? Hi all, I have been tasked with looking into RoHs requirements. Is there a definitive source of information that I can use? (Gooling RoHs has way to many hits!) Thanks!! Best Regards Charles Grasso Compliance Engineer Echostar Communications (w) 303-706-5467 (c) 303-204-2974 (t) 3033022 9...@vtext.com mailto:3033022...@vtext.com (e) charles.gra...@echostar.com (e2) chasgra...@gmail.com - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website:http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html http://www.ieee-pses.org/ listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-pstc@daveheald .com mailto:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Internal Virus Database is out of date. Checked by AVG - http://www.avg.com Version: 8.0.138 / Virus Database: 270.6.0/1601 - Release Date: 8/8/2008 9:02 AM - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website:http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantwell@i eee.org mailto:mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Copies of CNS standards
Charles, I found acquisition of CNS 13438 to be difficult. Couldn't find it on the ANSI site. To purchase from cnsonline, you must purchase a HiTech prepaid card and that was the difficult part for us. The web site was difficult. We finally got our in-country rep. to get it for us. They said the website was too difficult and they went down to the BSMI office, purchased a paper copy, scanned it and sent it by e-mail. Good luck. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via Del Campo San Diego, CA 92127 858-485-2537 - phone 213-337-5432 - fax From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian O'Connell Sent: Tuesday, August 12, 2008 10:47 AM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards may not be safe for some browsers - www.cnsonline.com.tw/en/ also, ANSI has CNS - http://webstore.ansi.org From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Grasso, Charles Sent: Tuesday, August 12, 2008 10:25 AM To: emc-p...@ieee.org Subject: Copies of CNS standards Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Copies of CNS standards
For the ANSI webstore, did you look under Chinese GB ? About 15 months ago I bought a Chinese std from ANSI - so do not know what changed. I just visited the cnsonline and bsmi.gov.tw sites and got a multitude of 404 errors, and a 301 (moved). Also, perhaps Grace Lin could advise, as she once wrote an article on comparing this std to CISPR. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Knighten, Jim L Sent: Tuesday, August 12, 2008 1:20 PM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards Charles, I found acquisition of CNS 13438 to be difficult. Couldn't find it on the ANSI site. To purchase from cnsonline, you must purchase a HiTech prepaid card and that was the difficult part for us. The web site was difficult. We finally got our in-country rep. to get it for us. They said the website was too difficult and they went down to the BSMI office, purchased a paper copy, scanned it and sent it by e-mail. Good luck. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via Del Campo San Diego, CA 92127 858-485-2537 - phone 213-337-5432 - fax From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian O'Connell Sent: Tuesday, August 12, 2008 10:47 AM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards may not be safe for some browsers - www.cnsonline.com.tw/en/ also, ANSI has CNS - http://webstore.ansi.org From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Grasso, Charles Sent: Tuesday, August 12, 2008 10:25 AM To: emc-p...@ieee.org Subject: Copies of CNS standards Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Copies of CNS standards
I did a quick search on the ANSI web site for Chinese GB, as suggested. I got 1500 hits, but could not find CNS 13438 and all documents I browsed through (not all 1500) were in Chinese language, which is of no help to me. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via Del Campo San Diego, CA 92127 858-485-2537 - phone 213-337-5432 - fax From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian O'Connell Sent: Tuesday, August 12, 2008 2:11 PM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards For the ANSI webstore, did you look under Chinese GB ? About 15 months ago I bought a Chinese std from ANSI - so do not know what changed. I just visited the cnsonline and bsmi.gov.tw sites and got a multitude of 404 errors, and a 301 (moved). Also, perhaps Grace Lin could advise, as she once wrote an article on comparing this std to CISPR. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Knighten, Jim L Sent: Tuesday, August 12, 2008 1:20 PM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards Charles, I found acquisition of CNS 13438 to be difficult. Couldn't find it on the ANSI site. To purchase from cnsonline, you must purchase a HiTech prepaid card and that was the difficult part for us. The web site was difficult. We finally got our in-country rep. to get it for us. They said the website was too difficult and they went down to the BSMI office, purchased a paper copy, scanned it and sent it by e-mail. Good luck. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via Del Campo San Diego, CA 92127 858-485-2537 - phone 213-337-5432 - fax From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian O'Connell Sent: Tuesday, August 12, 2008 10:47 AM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards may not be safe for some browsers - www.cnsonline.com.tw/en/ also, ANSI has CNS - http://webstore.ansi.org From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Grasso, Charles Sent: Tuesday, August 12, 2008 10:25 AM To: emc-p...@ieee.org Subject: Copies of CNS standards Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Copies of CNS standards
The GB standards are for mainland China. The CNS standards are for Taiwan. ANSI does not have many Taiwanese standards. BSMI is the best place to get it, but their web site isn't working properly right now. (At least the English section is not.) CE Magazine does have an old comparison between the Taiwan standard and CISPR 22 that may help. http://www.ce-mag.com/archive/1999/novdec/Lin.html Ted Eckert The opinions expressed are my own and do not necessarily reflect those of my employer. --- On Tue, 8/12/08, Knighten, Jim L jim.knigh...@teradata.com wrote: From: Knighten, Jim L jim.knigh...@teradata.com Subject: RE: Copies of CNS standards To: emc-p...@ieee.org Date: Tuesday, August 12, 2008, 4:28 PM I did a quick search on the ANSI web site for Chinese GB, as suggested. I got 1500 hits, but could not find CNS 13438 and all documents I browsed through (not all 1500) were in Chinese language, which is of no help to me. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via Del Campo San Diego, CA 92127 858-485-2537 - phone 213-337-5432 - fax -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian O'Connell Sent: Tuesday, August 12, 2008 2:11 PM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards For the ANSI webstore, did you look under Chinese GB ? About 15 months ago I bought a Chinese std from ANSI - so do not know what changed. I just visited the cnsonline and bsmi.gov.tw sites and got a multitude of 404 errors, and a 301 (moved). Also, perhaps Grace Lin could advise, as she once wrote an article on comparing this std to CISPR. -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Knighten, Jim L Sent: Tuesday, August 12, 2008 1:20 PM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards Charles, I found acquisition of CNS 13438 to be difficult. Couldn't find it on the ANSI site. To purchase from cnsonline, you must purchase a HiTech prepaid card and that was the difficult part for us. The web site was difficult. We finally got our in-country rep. to get it for us. They said the website was too difficult and they went down to the BSMI office, purchased a paper copy, scanned it and sent it by e-mail. Good luck. Jim James L. Knighten, Ph.D. EMC Engineer Teradata Corporation 17095 Via Del Campo San Diego, CA 92127 858-485-2537 - phone 213-337-5432 - fax -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Brian O'Connell Sent: Tuesday, August 12, 2008 10:47 AM To: emc-p...@ieee.org Subject: RE: Copies of CNS standards may not be safe for some browsers - www.cnsonline.com.tw/en/ also, ANSI has CNS - http://webstore.ansi.org -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org]On Behalf Of Grasso, Charles Sent: Tuesday, August 12, 2008 10:25 AM To: emc-p...@ieee.org Subject: Copies of CNS standards Hello list members, Where can I buy copies of the CNS standards? Best Regards Charles Grasso - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety
RE: NEBS Compliant Components
FWIW, some components that are sold specifically into the telecom environment *could* have *some* of the testing done on them, but such component manufacturers do little or nothing toward 'certification.' Some do more than others; it's a tricky affair. For some components, there's not a lot of value in certification, per se, because much depends on the how integration is accomplished. For other components, especially protection components, a lot of pretesting is done at the component level, but there are still no guaranteees they will work in a given design, without careful coordination. For component manufacturers that are not specifically targetting the telecom market, it's highly unlikely you'll find satisfaction. Beware the specter of 'designed to meet.' Peter Tarver, PE ptar...@ieee.org - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Another Cancer Scare?
Hi all, I have been on vacation but had planned to send this in - Some interesting facts (although some might argue with the numbers, they give a rough idea) There are roughly 61 million people in the UK One in 88 of these 61 million will die by this time next year. There is a one in 300 chance of dieing in a vehicle related accident while driving (in the lifetime) or roughly 0.5 million to one in any year over a 60 year driving lifetime. There is a 1 in 1000 chance of being killed in any one year if you are a deck-hand on a deep-sea trawler or a deep-sea diver. There is less than 1 in 1 million chance of being killed at work if you are an office worker. There are more mobile phones in use in the UK than there are adults... DIY in the UK accounts for 250,000 injuries and more than 70 deaths - ladder accidents account for 50 of those 70+ Children's toys are involved in over 4 accidents per year (mainly by tripping over them!) In 2006/2007 there were 241 workplace deaths in the UK Between 30 and 60 people are struck by lightning in the UK each year - of these 3 may die. Mobile phones are involved in accidents (with other contributory factors) A man died trying to recover his mobile phone from a drain. People have been killed using a mobile phone while driving or crossing the road. People have been murdered for their mobile phone. There are zero confirmed cases of death caused by RF radiation from a mobile phone since records (and mobile phones) began. there is no contest - I will keep using the mobile phone but it is TOO RISKY to go to work! Regards Tim Tim Haynes A1N21 Electromagnetic Engineering Specialist SELEX Sensors and Airborne Systems 300 Capability Green Luton LU1 3PG ( Tel : +44 (0)1582 886239 7 Fax : +44 (0)1582 795863 ) Mob: +44 (0)7703 559 310 * E-mail : tim.hay...@selexgalileo.com P Please consider the environment before printing this email. There are 10 types of people in the world-those who understand binary and those who don't. J. Paxman SELEX Sensors and Airborne Systems Limited Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS14 3EL A company registered in England Wales. Company no. 02426132 This email and any attachments are confidential to the intended recipient and may also be privileged. If you are not the intended recipient please delete it from your system and notify the sender. You should not copy it or use it for any purpose nor disclose or distribute its contents to any other person. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
