Brian - The MW represents an NEMA/ANSI magnet wire type. As I'm sure you're aware, there are a number of constructional variations for magnet wire coatings with regard to costing materials and thickness. Those meeting some minimum specifications associated with an MW type will advertise the wire as such.
If you review the certifications in UL's Recognized Component Directories (or on their web site) under OBMW2, you'll get a glimpse of what I mean, though not a lot of detail is given. Refer to http://www.ul.com/database/ select UL Category Code, input OBMW2, and review the individual certifications for companies. Unfortunately, there's not much useful information in the Guide Card for OBMW2. As to safety performance, there can be, since temperature ratings for the magnet wire insulations are tied to the construction types. Also, compatibility of materials in insulation systems for wound components can come into play with the temperature rating of the system. For additional information, look at several magnet wire vendors' web pages. For instance: http://www.wiretron.com/ http://www.mwswire.com/ Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com > From: Brian O'Connell > Sent: Monday, May 20, 2002 1:11 PM > > Good people of PSTC > > Magnetic wire mfrs will sometimes list > conformance to section "MW 80-C", and > sometimes to "MW 80". I assume that this is a > revision number of the > respective section. I have also noticed this > variance in agency construction > files. > > Is there any significant performance or > safey-related differences? > > thanks much > > Brian ------------------------------------------- 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"
