Hi group A question about clearance and creepage distances indicated in IEC60335-1.
The table 13 shows limits of 3mm (creepage) and 2.5mm (clearance) for a working voltage > 130V and < 250V. I still didn't find out if this voltage is RMS or peak value. Anyway, considering a Flyback converter, I know that I will need to comply with these distance limits between primary and secondary circuits. To reduce EMI problems, I can reduce the capacitance of the primary. I can divide the primary in two parts to do this. Doing so, I will need an auxiliary pin in my coil to connect the center tap of the primary. This pin can be cut out later, leaving a short stump with the soldering. My question is: Does the distance between the primary terminals of the transformer, and the center tap of this primary, need to comply with the distances indicated by IEC60335-1? Thanks in advance. Günter J. Maass EMBRACO S.A. ------------------------------------------- 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: Michael Garretson: pstc_ad...@garretson.org Dave Heald davehe...@mediaone.net 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://www.rcic.com/ click on "Virtual Conference Hall,"
