RE: safe voltage limits for cattle ( cows horses etc)
Make life easy...just set the current high enouph to cook the cow. Label on fence could read ...Quick Delivery to Restaraunt Recommended... - Mel -Original Message- From: David Gelfand [mailto:gelf...@memotec.com] Sent: Friday, November 10, 2000 2:24 PM To: emc-p...@majordomo.ieee.org Subject: Re: safe voltage limits for cattle ( cows horses etc) Gert, With all due respect to the seriousness of your question, I could not help but have this Far Side cartoon image of a group of cows with pocket protectors operating safety test equipment (standing up), one of them saying another something like, Bob, we'll need to have a warning put on this fence, the touch current is too high. My most humble apologies, David. - Original Message - From: CE-test - Ing. Gert Gremmen - ce-marking and more... To: Emc-Pstc@Ieee. Org Sent: Friday, November 10, 2000 6:34 AM Subject: safe voltage limits for cattle ( cows horses etc) hello Group, Can anyone point me in the right direction to a standard or technical report concerning safe voltage limits for farm animals especially cows. The beasts will be in touch on a regular basis with a DC voltage used to charge a fence pulse generator. I know the cows are being pulsed using 10 kV when touching the fence, but a DC voltage may be different. Thanks in advance. Regards, Gert Gremmen, (Ing) Ce-test, qualified testing == Web presence http://www.cetest.nl CE-shop http://www.cetest.nl/ce_shop.htm /-/ Compliance testing is our core business /-/ == --- 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: safe voltage limits for cattle ( cows horses etc)
Gert, With all due respect to the seriousness of your question, I could not help but have this Far Side cartoon image of a group of cows with pocket protectors operating safety test equipment (standing up), one of them saying another something like, Bob, we'll need to have a warning put on this fence, the touch current is too high. My most humble apologies, David. - Original Message - From: CE-test - Ing. Gert Gremmen - ce-marking and more... To: Emc-Pstc@Ieee. Org Sent: Friday, November 10, 2000 6:34 AM Subject: safe voltage limits for cattle ( cows horses etc) hello Group, Can anyone point me in the right direction to a standard or technical report concerning safe voltage limits for farm animals especially cows. The beasts will be in touch on a regular basis with a DC voltage used to charge a fence pulse generator. I know the cows are being pulsed using 10 kV when touching the fence, but a DC voltage may be different. Thanks in advance. Regards, Gert Gremmen, (Ing) Ce-test, qualified testing == Web presence http://www.cetest.nl CE-shop http://www.cetest.nl/ce_shop.htm /-/ Compliance testing is our core business /-/ == --- 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
Chicago Chapter IEEE EMC Meeting Notice - Thursday November 16, 2000
You are all invited to our next EMC Chapter meeting. List-Post: emc-pstc@listserv.ieee.org Date: Thursday - November 16, 2000 (Note meeting date change) Time: 7:30 pm Location: Lucent Technologies, Naperville Warrenville Roads, Naperville, Illinois List-Post: emc-pstc@listserv.ieee.org Date: November 16 Topic:Unexpected resonance effects in vehicle applications Speaker: Jerry Meyerhoff Abstract: A case study for radiated RF immunity of electronics installed in an over-the-road truck. Measured whole vehicle anechoic chamber lab data was compared to wireframe models simulated with NEC, the Numeric Electromagnetic Code . Chicago Chapter Chatter 2000 Meeting Schedule | Officers | Chapter Events | Past Presentations | National EMC Society IEEE National | 2000 Calendar | Officers Membership I want to join the I.E.E.E. now! | I need to renew now! Send comments about this web site to Frank Krozel ieeec1.jpgieeec2.jpgImage13.gif
FW: Compliance of a USB telephone
Forwarding a reply -- From: H.T. Hildering [SMTP:h.t.hilder...@ktl.com] mailto:[SMTP:h.t.hilder...@ktl.com] Sent: Friday, November 10, 2000 11:49 AM To: wo...@sensormatic.com mailto:wo...@sensormatic.com Subject: RE: Compliance of a USB telephone Sorry for my late reply. For applying the RTTE directive, the intended use is the crux. I wander or it is possible nowadays - if computers are connected to the internet- , to deny that it is not intended for communication using the internet; for example using Voice over IP! I would say that every computer (and connected equipment), that can communicate to the internet is falling under the scope of the RTTE. Consider for yourself what is stated in the RTTE directive: telecommunications terminal equipment means a product enabling communication or a relevant component thereof which is intended to be connected directly or indirectly by any means whatsoever to interfaces of public telecommunications networks (that is to say, telecommunications networks used wholly or partly for the provision of publicly available telecommunications services); Only when it is IMPOSSIBLE to reach a public network, the RTTE is not applicable. The consequence for the USB telephone is that there are no restrictions on the power voltage (as stated in the LVD), so the telephone must fully comply with all the requirements as mentioned in the safety directive(for example acoustical shock) Best regards, Theo Hildering KTL -Original Message- From: owner-emc-p...@ieee.org mailto:owner-emc-p...@ieee.org [mailto:owner-emc-p...@ieee.org] mailto:[mailto:owner-emc-p...@ieee.org] On Behalf Of wo...@sensormatic.com mailto:wo...@sensormatic.com Sent: 02 November 2000 19:29 To: ico...@itl.co.il; mailto:ico...@itl.co.il; emc-p...@ieee.org mailto:emc-p...@ieee.org Subject:RE: Compliance of a USB telephone Let me see if I understand this product. It is a telephone like device that is solely intended to be connected to the USB port of a PC and it is not intended to be connected to the telephone network. If this is true, then no telephone standards, regulations or directives apply. Only the EMC directive applies in the EU. The RTTE directive does not apply since the device is not intended to be connected to the telephone network. The LVD does not apply since the source voltage is too low. Compliance with safety requirements of EN60950 is sufficient to show due diligence for the Liability Directive and General Product Safety Directive. Dear Group We are testing an PC telephone unit! It is a telephone terminal unit that connects to the USB port of the PC from which it receives power. There is no other connection, just the USB. Clearly this unit must comply with EMC requirements. Safety requirements are not mandatory but clearly they are recommended to be performed for UL1950 for the US and EN60950 for Europe. Two questions: 1) What about Part 68 in the US? Since unit is not directly connected to the PSTN officially it is exempt from the standard. (Acoustics tests are covered under UL1950) 2) What about RTTE directive in Europe? There is no standard you can test for. All of TBR 21 tests are not applicable. Thanks Ilan Ilan Cohen Manager, Telecom Division I.T.L (PRODUCT TESTING) Ltd. 26 Hacharoshet St, POB 211, Or Yehuda, Israel. Tel 972-3-5339022, Fax 972-3-5339019 ico...@itl.co.il mailto:ico...@itl.co.il , website: http://www.itl.co.il 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 mailto: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 mailto:jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org mailto:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org mailto: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 mailto:majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list
E3 grounding
Hello group, Can anyone advise on how the grounding of the Rx side should be handled to satisfy Europe? The UK used to require the option of grounding or not, but I'm not sure if this is still a requirement, or about requirements in other parts of Europe. Thanks, Dave Wilson --- 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: safe voltage limits for cattle ( cows horses etc)
No, sorry I don't I have a propane barbeque rather than electric. :) Gary -Original Message- From: CE-test - Ing. Gert Gremmen - ce-marking and more... [mailto:cet...@cetest.nl] Sent: Friday, November 10, 2000 3:35 AM To: Emc-Pstc@Ieee. Org Subject: safe voltage limits for cattle ( cows horses etc) Message: Untitled AttachmentFile: Gert Gremmen.vcf --- 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: safe voltage limits for cattle ( cows horses etc)
Try EN 61011, Electric fence energizers. Safety requirements for mains-operated electric fence energizers. EN 61011-1 Safety requirements for battery-operated electric fence energizers suitable for connection to the supply mains. EN61011-2 Safety requirements for battery-operated electric fence energizers not for connection to the supply mains. Not surprisingly, I don't have copies of these, so I don't know if they will contain the required information. Regards, John Crabb, Development Excellence (Product Safety) , NCR Financial Solutions Group Ltd., Kingsway West, Dundee, Scotland. DD2 3XX E-Mail :john.cr...@scotland.ncr.com Tel: +44 (0)1382-592289 (direct ). Fax +44 (0)1382-622243. VoicePlus 6-341-2289. -Original Message- From: CE-test - Ing. Gert Gremmen - ce-marking and more... [SMTP:cet...@cetest.nl] Sent: 10 November 2000 11:35 To: Emc-Pstc@Ieee. Org Subject: safe voltage limits for cattle ( cows horses etc) Message: Untitled AttachmentFile: Gert Gremmen.vcf --- 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
safe voltage limits for cattle ( cows horses etc)
hello Group, Can anyone point me in the right direction to a standard or technical report concerning safe voltage limits for farm animals especially cows. The beasts will be in touch on a regular basis with a DC voltage used to charge a fence pulse generator. I know the cows are being pulsed using 10 kV when touching the fence, but a DC voltage may be different. Thanks in advance. Regards, Gert Gremmen, (Ing) Ce-test, qualified testing == Web presence http://www.cetest.nl CE-shop http://www.cetest.nl/ce_shop.htm /-/ Compliance testing is our core business /-/ == Notebook.jpgattachment: Gert Gremmen.vcf
Acoustic measurement in EN55024.
Hi folk. As you konw,EN55024's dow is 2001.07.01. Many test item add than Generic Std. EN50082-1. So I prepare the test equipment and set-up. But I have no idea about acoustic measurement of TTE on EN55024 Annex A. Did you have configured test equipment of acoustic measutement? Which equipment is used or recommand? Model and manufacture. And Could you send acouse measurement test set-up daigram or photo? I should appreciate hearing from you. Best regards. Tommy --- 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
CSA C22.3 #42-99
I had a question posed to me by a fellow engineer with regard to the design of an electrical outlet to be used in ITE equipment. He is following the requirements identified in CSA standard C22.2 #42-99 where each pole and ground pin is individually subjected to a weighted pullout test. The question was whether or not this is also part of the equivalent UL requirements for electrical outlets. An engineer from a reputable power cord manufacturer told him that UL did not require this test. Unfortunately I have no expertise with either standard and could not help. Could someone let me know what the equivalent UL standard is and whether this is a true statement. If someone could contact me off line I would appreciate it. Thanks in advance... Rick Busche rbus...@es.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
