Re: Spacings Issue

Hi Ed: First of all the floating secondary ground (if not connected directly to earth) should be treated as part of the secondary circuit which in many cases will require reinforced insulation to the primary circuit according to the working voltage measured. There are two

Re: Spacings Issue

Hi Ken: See my paper on floating circuits in the Product Safety Newsletter: http://www.ewh.ieee.org/soc/emcs/pstc/tech-spk.htm This should answer all your questions. If not, please get back to me, and I'll answer any additional questions you may have. Best regards, Rich ps:

Spacings Issue

Hello Group, A circuit uses a floating ground in the secondary, and caps are used for protection from the secondary outputs to earth ground. The question is, under spacings requirements, would the secondary have to meet the high voltage requirements for spacings for primaries due to this earth