My work has a high voltage electronics testing lab. I would be happy to test if someone could send me a res-c handled blade. Of course it would be destructive testing and I couldn't send any pieces back <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />

The res-c is not the problem so much as the hole in the tang and close proximity of hand to the steel. Low-voltage would be fine, but high-voltage is probably not going to be safe.