Kristiaan -
As with the remainder of the standard, the fire enclosure requirements apply only to the effected areas. If the remainder of the product, by its construction features, does not require a fire enclosure, only the volume surrounding the TN circuit needs to meet the fire enclosure requirements. All fire enclosure requirements, including projected angles, opening sizes, material flammability, etc., apply around the TN circuit volume. Regards, Peter L. Tarver, PE [email protected] > From: Kristiaan Carpentier > Sent: Wednesday, March 03, 2004 10:04 AM > > Hello group, > > UL60950-1, Clause 6.4 in Figure 6C specifies > requirements related to "FIRE > ENCLOSURE and SPACINGS". > Further on the applicable condition 5) explains > the detailed SPACINGS > requirements that apply between TNV circuits and > other parts. > > Question: is the requirement for the FIRE > ENCLOSURE also limited to the > physical location of the TNV circuit(s) or to the > complete product? > Note: The material (plastic) of the enclosure may > be entirely V-1 or better > but holes in the bottom are my major concern. This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ieee-pses.org/ 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] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
