RE: IEC Guide 104
On the whole, of course safety is involved; but that is not the question at hand. What I am trying to get at is that a particular requirement/test may not be safety related in a particular application. That occurs from time to time in ITE testing, so is there any reason why the same investigative rationale cannot be applied to the components used in ITE, such as lasers/LEDs, where the standards for those components have a normative reference in the ITE standard? Richard Woods Sensormatic Electronics Tyco International -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Wednesday, August 28, 2002 2:56 AM To: emc-p...@majordomo.ieee.org Subject: Re: IEC Guide 104 I read in !emc-pstc that richwo...@tycoint.com wrote (in 846BF526A205F8 4BA2B6045BBF7E9A6A04675652@flbocexu05) about 'IEC Guide 104' on Tue, 27 Aug 2002: EN 60825-1 is a normative reference in Annex ZA of EN 60950. Clause 1.1 of EN 60825-1 says: When a laser system forms part of equipment which is subject to another IEC product safety standard . . . this part 1 will apply in accordance with the provisions of IEC Guide 104, for hazards resulting from laser radiation. Clause 1.4.1 of EN 60950 says The requirements and tests detailed in this standard shall be applied only if safety is involved. If it is evident from the design and construction of the equipment that a particular test is not applicable, the test shall not be made. It appears that this clause can be extended to EN 60825-1. What does IEC Guide 104 say in this regard? If it is silent on this subject, do you agree that requirements and tests in EN60825-1 shall be applied only if safety is involved? Yes, but how could safety NOT be involved? Is your laser in a totally sealed, non-openable block? -- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
Re: IEC Guide 104
I read in !emc-pstc that richwo...@tycoint.com wrote (in 846BF526A205F8 4BA2B6045BBF7E9A6A04675652@flbocexu05) about 'IEC Guide 104' on Tue, 27 Aug 2002: EN 60825-1 is a normative reference in Annex ZA of EN 60950. Clause 1.1 of EN 60825-1 says: When a laser system forms part of equipment which is subject to another IEC product safety standard . . . this part 1 will apply in accordance with the provisions of IEC Guide 104, for hazards resulting from laser radiation. Clause 1.4.1 of EN 60950 says The requirements and tests detailed in this standard shall be applied only if safety is involved. If it is evident from the design and construction of the equipment that a particular test is not applicable, the test shall not be made. It appears that this clause can be extended to EN 60825-1. What does IEC Guide 104 say in this regard? If it is silent on this subject, do you agree that requirements and tests in EN60825-1 shall be applied only if safety is involved? Yes, but how could safety NOT be involved? Is your laser in a totally sealed, non-openable block? -- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
IEC Guide 104
EN 60825-1 is a normative reference in Annex ZA of EN 60950. Clause 1.1 of EN 60825-1 says: When a laser system forms part of equipment which is subject to another IEC product safety standard . . . this part 1 will apply in accordance with the provisions of IEC Guide 104, for hazards resulting from laser radiation. Clause 1.4.1 of EN 60950 says The requirements and tests detailed in this standard shall be applied only if safety is involved. If it is evident from the design and construction of the equipment that a particular test is not applicable, the test shall not be made. It appears that this clause can be extended to EN 60825-1. What does IEC Guide 104 say in this regard? If it is silent on this subject, do you agree that requirements and tests in EN60825-1 shall be applied only if safety is involved? Richard Woods Sensormatic Electronics Tyco International --- 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: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: davehe...@attbi.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
