I read in !emc-pstc that [email protected] wrote (in <130.2454e3f2.2c7e [email protected]>) about 'fuse replacement markings' on Wed, 27 Aug 2003:
> There are plenty of fuse standards other than IEC 60127 and > unfortunately there is little or no commonality in marking > requirements between them. Also, the upper limit of 6.3A for IEC > 60127 fuses is far too limiting for certain types of IT equipment > (some telecomms equipment use DC rated fuses in the hundreds of > amps range, for example). > I am aware of all you say, and I suppose that it is due to the excessive influence from one country, that pays only lip-service to IEC while retaining a very large number of conflicting national standards, that IEC 60950 does not refer to the many IEC fuse standards. In this case, since the fuse was said to be unnecessary, I think it was reasonable to assume that it is a fuse for which an IEC 60127 type is suitable. I doubt that it is rated at 'hundreds of amps' or even more than 6.3 A. I agree that the upper bound of 6.3 A is a considerable inconvenience, and many manufacturers make fuses dimensionally in agreement with 60127 Parts but rated at higher currents. I wonder why the upper bound is not increased. -- 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
