David, John, and others, I am afraid you have diverted from the original subject, namely, Russian equivalent standards. To my knowledge, Russians identify standards applicability by using two different systems, parallel but not identical to European approach. I would suggest to contact a certification body which helped you get GOST-R approval; they would advise you on applicability of EN standards to GOST approval. It may surprise you. Best Regards
David Sproul <[email protected]> wrote: Hello John, I find your response to Neil's comments to be most interesting. In my original posting I said that I had used the generics to cover the emc requirements. I had guessed these from memory, but when I actually checked I found that we had in fact used the EN 55103 standards that Neil had referred to. I also noticed that section G.2.2.4 (Entertainment lighting control apparatus:) was highlighted in the my copy of the standard. After an endless period of head scratching, I began to recall the lengthy debates we had at the time with, our client and the test house. There are 2 standards for EMC that generally cover lighting products, namely EN 55015 for emissions and EN61547 for immunity. EN 61547 also includes in it's scope entertainment lighting control equipment for professional purpose. On the other hand there are the EN 55103! standards which are specifically named "Product family standard for audio, video, audio-visual and entertainment lighting control apparatus for professional use." Since our client made lighting control equipment for use in theatres, we saw the latter standards as being the most appropriate ones to use. EN 55015 did not seem to be the most appropriate standard for us. Our client's units have an on-board processor running at several MHz, which monitors load currents and voltages, dimmer temperature and control instructions for the 96 channels being run simultaneously. With load cables several 10's of metres long, we saw there was a high likelihood of radiated emissions, which are not covered by EN55015. This again is why we opted for the EN55103 standards which do specify radiated emissions measurements up to 1GHz. As I stated earlier, we did also notice this peculiar clause in the informative Annex G within EN55103-1 (Produc! t family standard for .......entertainment lighting control! apparat us for professional use) which seemed to excluded professional lighting control equipment from the professional lighting control equipment standard. Perhaps incorrectly, as you would argue, we interpreted that clause in a way that suited our case. It says that the standard applies to "control desks (but not dimmers or luminaires, to which EN 55014 or EN 55015 applies)" If it had said " to which EN 55014 or EN 55015 apply", that would have said to me that dimmers or luminaires are covered exclusively by these 2 standards. But because it said "applies" we chose to read that as "EN55103 does not apply to dimmers for which the scope of EN 55015 fully covers all their EMC emissions protection requirements." As far as we could see, EN 55015 did not address all the particular protection requirements for emissions from our clients' equipment. Nevertheless. In the light of (no pun intended) the recent prosecution of a hairdryer! manufacturer for not ensuring their equipment was compliant with all the EMC requirements for the intend working environment, we have recommended to our client that they carry out Conducted Emission tests between 9kHz and 150kHz, as required by EN55015, but excluded from EN55103-1. In this way we are now confident that our clients equipment now meets the protection requirements for the environment in which it is designed to work. I look forward (I think) to your comments, Best regards, David Sproul. From: [email protected] [mailto:[email protected]]On Behalf Of John Woodgate Sent: 15 April 2003 08:31 To: [email protected] Subject: Re: Russian (GOST) equivalent standards. I read in !emc-pstc that Barker, Neil wrote (in <[email protected]>) about '! Russian (GOST) equivalent standards.' on Mon, 14 Apr 2003: ! >Alth ough the technical requirements are somewhat similar, you should be >using EN 55103-1 & EN 55103-2 for EMC as they are the product specific >standards for audio, video, and lighting control apparatus for professional >use. I would make sure that you meet these first. I don't agree with earlier >advice to us EN 55015 as this applies to the luminaires rather than the >control equipment. Well, I'm afraid you are wrong in respect of dimmers, as you would know if you had read clause G.2.2.4 of EN 55103-1. The OP's 'dimmer/control equipment' suggested to me that the control was integrated in the dimmer rack, in which case EN 55015 applies to the whole box. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Interested in professional sound reinforcement and distribution? Then go to http://www.isce.org.uk PLEASE do NOT copy news posts to me by E-MAIL! This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your! subscription, send mail to: [email protected] with the! single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: [email protected] Dave Heald: [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _____ Do you Yahoo!? The New Yahoo! Search <http://us.rd.yah o.com/search/mailsig/*http://search.yahoo.com> - Faster. Easier. Bingo.
