For UL I.T., the materials must be approved for the operating conditions, IP, and WV.
IEC 60950-1, 2.10.8 Spacings filled by insulating compound Where distances between conductive parts are filled with insulating compound, including where insulation is reliably cemented together with insulating compound, so that CLEARANCES and CREEPAGE DISTANCES do not exist, only the requirements for distance through insulation of 2.10.5.1 apply. luck, Brian > -----Original Message----- > From: Doug Beckwith [mailto:[email protected]] > Sent: Wednesday, January 05, 2005 8:44 AM > To: [email protected] > Subject: Potted components > > > Hi Everyone, > A happy new year to you all. > > Now for my question. I am looking at a unit that has mains and > SELV circuits that is encapsulated (potted). Am I correct in > assuming that creepage and clearance distances on the PCB for a > potted unit become the same as that for distance through > insulation, as when the traces are buried in a multilayer PCB? > > Regards > > Doug > > > ______________________________________________________________________ > Post your free ad now! http://personals.yahoo.ca > > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society > emc-pstc discussion list. Website: http://www.ieee-pses.org/ > > To post a message to the list, send your e-mail to [email protected] > > Instructions: > http://listserv.ieee.org/listserv/request/user-guide.html > > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > > Scott Douglas [email protected] > Mike Mcantwell [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 > This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] Mike Mcantwell [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
