> In other words, we aren't using the creepage/clearance > tables of say UL-1950 3rd Ed. to determine the distances, > or are we?
The cost of doing independent creepage and clearance research is prohibitive. At one time Bellcore may have done some, but I believe that they have now accepted IEC 60950. I believe the same to be true for most service providers in Europe and North America, hence, sticking with UL-1950 should see you through. Vic
