EBME Forums Forums Maintenance Technical Assistance EN 60601 neutral/earth connection?

Hi All, I really hope you can help.

I work for a transformer manufacturer, and we are currently designing a Medical Isolation Transformer to BS EN 60601. I have been given the dubious task of ensuring compliance with the standard, and I have a question concerning the output connections.

I have been told (and have read on the web), that the output voltage MUST be floating from earth (i.e the output neutral cannot be tied to earth). Is this correct? And where can I find this (rather crucial) information in the 60601 standard?

Any help would be greatly appreciated - thank you.