Re: EN55014 EN55022/24 test limit similarities?
Thanks to all who responded - my concerns were covered. Best Regards, -David On 2/9/07, David Heald dhe...@gmail.com wrote: All, I need to know if there are any significant differences in the test levels specified in EN55014 and EN55022/55024. Access to my standards service is temporarily down so I need some help... I usually deal in the ITE realm, but just got a question from a customer who wants to integrate one of our ITE modules into an appliance as an information acquisition device that would then determine some settings on the appliance. We usually test these modules to (among other things) EN55022 EN55024, but the customer is interested in EN55014. Are the tests levels contained within EN55014 substantially different from those in 55022 or 55024 - i.e. are there any gotcha's that I need to be aware of? Note we qualified this module on a test board and tested to the next level higher than would be required by EN55024 (i.e. 10V/m RFI, 8/15kV ESD, etc). Thanks in advance for any advice... -Dave Heald - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
Re: EN55014 EN55022/24 test limit similarities?
Clause 4.1.3 of EN 55014-1:2006 covers radiated emissions for toys from 30 MHz to 1000 MHz. This test is restricted to toys otherwise disturbance power is measured on an extended power cord (5.6 m) with an absorbing clamp in the range of 30 MHz to 300 MHz. The test is run now using actual auxiliary loads. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 = Bob Richards b...@toprudder.co m To Sent by: emc-p...@ieee.org emc-p...@ieee.org cc Subject 02/11/2007 08:33 Re: EN55014 EN55022/24 test PMlimit similarities? Bob, You are right, that is why I said: I believe that if your module passes 55022 class B limits, and also the next higher level in 55024, your module will probably not contribute to a failure in the end product. ;-) I never tested any toys so I am not familiar with that. Is that part of 55014 now (or then)? I do remember there was a section in 55014 covering internal vibrators, and what was to be used as the auxillary load for test purposes. :-O And, no, I never had the chance to test any of those. At the time I was performing tests to 55014, there was a separate standard for immunity, I believe it was 55104. Cheers, Bob Richards, NCT rehel...@mmm.com wrote: There is a radiated emissions test for toys and I would advise doing the test for all products. The radiated test for 55014-1 is a disturbance power test mush as you described but I would not come to the conclusion that passing EN 55022 Class B would be all right. Also EN 55014-1 covers emissions and EN 55014-2 covers immunity. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 === Bob Richards m To Sent by: David Heald emc-p...@ieee.org ieee cc 02/09/2007 11:08 Subject AM Re: EN55014 EN55022/24 test limit similarities? David, It has been a few years since I tested anything to 55014, and I don't have access to 55014 now, so what I say may be dated. IIRC, Unless the product is a power tool, 55014 has similar conducted emissions limits. I believe the average limit is actually higher at 150kHz, but pretty much the same as class B 55022 limits. Power tools have higher limits. In 55014, there is no radiated emissions test. However there is a disturbance power test, which covers 30-300 MHz using an absorber clamp to measure the emissions on any cables exiting the product. This test is what some labs refer to as the track test, since the absorber clamp has wheels, and is moved along some sort of track to maximize the emissions. There is a click test, or discontinuous disturbance test. This is an additional conducted disturbance test for very short duration spikes in the conducted emissions, due to switching transients that may exist in products with relays or contactors. It is basically a relaxation of the normal conducted QP limits for these transients. The amount of relaxation of the limit is based on the click frequency, the fewer clicks the more the limit is relaxed. Conducted immunity covers up to 230 MHz instead of 80 MHz. There is no radiated immunity. I believe EFT and surge tests are similar. I believe that if your module passes 55022 class B limits, and also the next higher level in 55024, your module will probably not contribute to a failure in the end product. I hope this helps. Bob Richards, NCT. - 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
Re: EN55014 EN55022/24 test limit similarities?
Bob, You are right, that is why I said: I believe that if your module passes 55022 class B limits, and also the next higher level in 55024, your module will probably not contribute to a failure in the end product. ;-) I never tested any toys so I am not familiar with that. Is that part of 55014 now (or then)? I do remember there was a section in 55014 covering internal vibrators, and what was to be used as the auxillary load for test purposes. :-O And, no, I never had the chance to test any of those. At the time I was performing tests to 55014, there was a separate standard for immunity, I believe it was 55104. Cheers, Bob Richards, NCT rehel...@mmm.com wrote: There is a radiated emissions test for toys and I would advise doing the test for all products. The radiated test for 55014-1 is a disturbance power test mush as you described but I would not come to the conclusion that passing EN 55022 Class B would be all right. Also EN 55014-1 covers emissions and EN 55014-2 covers immunity. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 === Bob Richards m To Sent by: David Heald emc-p...@ieee.org ieee cc 02/09/2007 11:08 Subject AM Re: EN55014 EN55022/24 test limit similarities? David, It has been a few years since I tested anything to 55014, and I don't have access to 55014 now, so what I say may be dated. IIRC, Unless the product is a power tool, 55014 has similar conducted emissions limits. I believe the average limit is actually higher at 150kHz, but pretty much the same as class B 55022 limits. Power tools have higher limits. In 55014, there is no radiated emissions test. However there is a disturbance power test, which covers 30-300 MHz using an absorber clamp to measure the emissions on any cables exiting the product. This test is what some labs refer to as the track test, since the absorber clamp has wheels, and is moved along some sort of track to maximize the emissions. There is a click test, or discontinuous disturbance test. This is an additional conducted disturbance test for very short duration spikes in the conducted emissions, due to switching transients that may exist in products with relays or contactors. It is basically a relaxation of the normal conducted QP limits for these transients. The amount of relaxation of the limit is based on the click frequency, the fewer clicks the more the limit is relaxed. Conducted immunity covers up to 230 MHz instead of 80 MHz. There is no radiated immunity. I believe EFT and surge tests are similar. I believe that if your module passes 55022 class B limits, and also the next higher level in 55024, your module will probably not contribute to a failure in the end product. I hope this helps. Bob Richards, NCT. - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
Re: EN55014 EN55022/24 test limit similarities?
There is a radiated emissions test for toys and I would advise doing the test for all products. The radiated test for 55014-1 is a disturbance power test mush as you described but I would not come to the conclusion that passing EN 55022 Class B would be all right. Also EN 55014-1 covers emissions and EN 55014-2 covers immunity. Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 === Bob Richards b...@toprudder.co m To Sent by: David Heald dhe...@gmail.com emc-p...@ieee.org ieee emc-p...@ieee.org cc 02/09/2007 11:08 Subject AMRe: EN55014 EN55022/24 test limit similarities? David, It has been a few years since I tested anything to 55014, and I don't have access to 55014 now, so what I say may be dated. IIRC, Unless the product is a power tool, 55014 has similar conducted emissions limits. I believe the average limit is actually higher at 150kHz, but pretty much the same as class B 55022 limits. Power tools have higher limits. In 55014, there is no radiated emissions test. However there is a disturbance power test, which covers 30-300 MHz using an absorber clamp to measure the emissions on any cables exiting the product. This test is what some labs refer to as the track test, since the absorber clamp has wheels, and is moved along some sort of track to maximize the emissions. There is a click test, or discontinuous disturbance test. This is an additional conducted disturbance test for very short duration spikes in the conducted emissions, due to switching transients that may exist in products with relays or contactors. It is basically a relaxation of the normal conducted QP limits for these transients. The amount of relaxation of the limit is based on the click frequency, the fewer clicks the more the limit is relaxed. Conducted immunity covers up to 230 MHz instead of 80 MHz. There is no radiated immunity. I believe EFT and surge tests are similar. I believe that if your module passes 55022 class B limits, and also the next higher level in 55024, your module will probably not contribute to a failure in the end product. I hope this helps. Bob Richards, NCT. David Heald dhe...@gmail.com wrote: All, I need to know if there are any significant differences in the test levels specified in EN55014 and EN55022/55024. Access to my standards service is temporarily down so I need some help... I usually deal in the ITE realm, but just got a question from a customer who wants to integrate one of our ITE modules into an appliance as an information acquisition device that would then determine some settings on the appliance. We usually test these modules to (among other things) EN55022 EN55024, but the customer is interested in EN55014. Are the tests levels contained within EN55014 substantially different from those in 55022 or 55024 - i.e. are there any gotcha's that I need to be aware of? Note we qualified this module on a test board and tested to the next level higher than would be required by EN55024 (i.e. 10V/m RFI, 8/15kV ESD, etc). Thanks in advance for any advice... -Dave Heald - 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: EN55014 EN55022/24 test limit similarities?
In message 2a93eb060702090952p30031df6gd773c64d965fc...@mail.gmail.com, dated Fri, 9 Feb 2007, Grace Lin graceli...@gmail.com writes I am confused by the versions of the standard. I think EN 55014 has been renumbered to EN 55014-1. Please corrent me if I am wrong. You are correct. The current version of harmonized standard is (as of December 2006): EN 55014-1:2000 Electromagnetic compatibility — Requirements for household appliances, electric tools and similar apparatus — Part 1: Emission (CISPR 14-1:2000) Amendment A1:2001 to EN 55014-1:2000 (CISPR 14-1:2000/A1:2001) Amendment A2:2002 to EN 55014-1:2000 (CISPR 14-1:2000/A2:2002) BSI has published a 2007 version of this standard. I think that's 2006, not 2007. From the BSI web site: Replaces: BS EN 55014-1:2001, Replaces BS EN 55014-1:2001 which remains current., International Relationships: CISPR 14-1:2005 Identical , EN 55014-1:2006 Identical DS's version is 2000 with A1: 2002. The current version of CISPR 14-1 is Ed. 5, 2005. Does this mean the EN 55014-1 will be repealed soon? No; the Maintenance Result Date for CISPR 14-1 is 2008 but there are many changes in the pipeline. Go to: http://tinyurl.com/2xa47h If I have to purchase a copy of this standard, which version should I pick? The 2006 version. Danish Standards will probably have it soon, maybe dated 2007. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk There are benefits from being irrational - just ask the square root of 2. 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
Re: EN55014 EN55022/24 test limit similarities?
This is the exact same question I was asked by my colleague yesterday. He concerns about conducted emission, I am not sure if his design including relays and/or contactors. I am confused by the versions of the standard. I think EN 55014 has been renumbered to EN 55014-1. Please corrent me if I am wrong. The current version of harmonized standard is (as of December 2006): EN 55014-1:2000 Electromagnetic compatibility — Requirements for household appliances, electric tools and similar apparatus — Part 1: Emission (CISPR 14-1:2000) Amendment A1:2001 to EN 55014-1:2000 (CISPR 14-1:2000/A1:2001) Amendment A2:2002 to EN 55014-1:2000 (CISPR 14-1:2000/A2:2002) BSI has published a 2007 version of this standard. DS's version is 2000 with A1: 2002. The current version of CISPR 14-1 is Ed. 5, 2005. Does this mean the EN 55014-1 will be repealed soon? If I have to purchase a copy of this standard, which version should I pick? Thank you. Grace On 2/9/07, David Heald dhe...@gmail.com wrote: All, I need to know if there are any significant differences in the test levels specified in EN55014 and EN55022/55024. Access to my standards service is temporarily down so I need some help... I usually deal in the ITE realm, but just got a question from a customer who wants to integrate one of our ITE modules into an appliance as an information acquisition device that would then determine some settings on the appliance. We usually test these modules to (among other things) EN55022 EN55024, but the customer is interested in EN55014. Are the tests levels contained within EN55014 substantially different from those in 55022 or 55024 - i.e. are there any gotcha's that I need to be aware of? Note we qualified this module on a test board and tested to the next level higher than would be required by EN55024 (i.e. 10V/m RFI, 8/15kV ESD, etc). Thanks in advance for any advice... -Dave Heald - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ 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 mailto:mcantw...@ieee.org mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: mailto:emc-p...@daveheald.com 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
Re: EN55014 EN55022/24 test limit similarities?
David, It has been a few years since I tested anything to 55014, and I don't have access to 55014 now, so what I say may be dated. IIRC, Unless the product is a power tool, 55014 has similar conducted emissions limits. I believe the average limit is actually higher at 150kHz, but pretty much the same as class B 55022 limits. Power tools have higher limits. In 55014, there is no radiated emissions test. However there is a disturbance power test, which covers 30-300 MHz using an absorber clamp to measure the emissions on any cables exiting the product. This test is what some labs refer to as the track test, since the absorber clamp has wheels, and is moved along some sort of track to maximize the emissions. There is a click test, or discontinuous disturbance test. This is an additional conducted disturbance test for very short duration spikes in the conducted emissions, due to switching transients that may exist in products with relays or contactors. It is basically a relaxation of the normal conducted QP limits for these transients. The amount of relaxation of the limit is based on the click frequency, the fewer clicks the more the limit is relaxed. Conducted immunity covers up to 230 MHz instead of 80 MHz. There is no radiated immunity. I believe EFT and surge tests are similar. I believe that if your module passes 55022 class B limits, and also the next higher level in 55024, your module will probably not contribute to a failure in the end product. I hope this helps. Bob Richards, NCT. David Heald dhe...@gmail.com wrote: All, I need to know if there are any significant differences in the test levels specified in EN55014 and EN55022/55024. Access to my standards service is temporarily down so I need some help... I usually deal in the ITE realm, but just got a question from a customer who wants to integrate one of our ITE modules into an appliance as an information acquisition device that would then determine some settings on the appliance. We usually test these modules to (among other things) EN55022 EN55024, but the customer is interested in EN55014. Are the tests levels contained within EN55014 substantially different from those in 55022 or 55024 - i.e. are there any gotcha's that I need to be aware of? Note we qualified this module on a test board and tested to the next level higher than would be required by EN55024 (i.e. 10V/m RFI, 8/15kV ESD, etc). Thanks in advance for any advice... -Dave Heald - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
EN55014 EN55022/24 test limit similarities?
All, I need to know if there are any significant differences in the test levels specified in EN55014 and EN55022/55024. Access to my standards service is temporarily down so I need some help... I usually deal in the ITE realm, but just got a question from a customer who wants to integrate one of our ITE modules into an appliance as an information acquisition device that would then determine some settings on the appliance. We usually test these modules to (among other things) EN55022 EN55024, but the customer is interested in EN55014. Are the tests levels contained within EN55014 substantially different from those in 55022 or 55024 - i.e. are there any gotcha's that I need to be aware of? Note we qualified this module on a test board and tested to the next level higher than would be required by EN55024 (i.e. 10V/m RFI, 8/15kV ESD, etc). Thanks in advance for any advice... -Dave Heald - 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 email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email __
