I read in !emc-pstc that Donald McElheran <[email protected]> wrote (in <808E4747B94FD511BDB0005004A1DE7F0521E3@HQ-EXCHANGE>) about 'Group:', on Mon, 12 Nov 2001: >The product being supplied via an external low voltage ( <20V DC @ 6A )
Do you mean 'less than 20 V'? The symbols < and > are often confused. >appears to technically fall outside the scope of both the European LVD >directive and North American NRTL certification requirements for products >directly connected to the public mains. It is likely that the LVD will be revised within the foreseeable future to have no lower limit of voltage, like the RTTE Directive. > >The product is similar to that of a laptop computer running from an wall >mounted adapter. > >Questions have been raised regarding flammability of enclosure materials >which will have a significant impact of the products cost. > >Could any member of the forum who may have had to address similar situation >share there thoughts? > >At this point it would appear that provided we ensure the external power >supply conforms to any applicable safety standards in which the equipment is >to be marketed that their is no legislated (hate to use this term) >requirements to safety certify the table top product. The input power is up to 120 W, which is quite enough to cause a significant fire hazard. Also, are any voltages higher than 20 V generated inside the box? You would be well-advised to apply the appropriate safety standard (IEC/EN60950/UL1950?), even if according to the letter of the law you may not need to. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! ------------------------------------------- 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: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
