Hi UL experts, I have analyzed UL 508A and the guidelines. I have the following questions: 1. What are applicable standards for "circuit diagrams"? Does have UL specific requirements? I found only IEEE 315 referenced in NFPA 79. 2. Which UL standards are applicable if the internal voltage is transformed up to 6500 volts? 3. In http://www.ul-europe.com/download /technical/industrial/Control_Panel_Information_en.pdf on page 7: what does "NITW" mean?
Mit freundlichen Grüßen Yours sincerely Dipl.-Ing. Michael Loerzer Managing Director Regulatory Affairs Specialist Fon: +49 30 3229027-50, Direct Call: -51 Mobile: +49 170 3229027 (new) Fax: +49 30 3229027-59 www.Globalnorm.de <http://www.globalnorm.de/> Globalnorm GmbH, Sitz der Gesellschaft: Alt-Moabit 94, 10559 Berlin Geschaeftsfuehrer: Dipl.-Ing. Michael Loerzer Amtsgericht Berlin-Charlottenburg HRB 105204 B, USt-ID-Nummer: DE251654448 - ---------------------------------------------------------------- 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/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 Cantwell [email protected] For policy questions, send mail to: Jim Bacher: [email protected] David Heald: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
