Does anyone know if ceramic knife blades conduct electricity? If not, this could be handy to an electrician.

Not according to this: http://www.e-certech.com/bomb_disarming.html

They would only be handy to an electrician if they can improve the toughness of the ceramics used in ceramic knives, or the electrician is very gentle with his or her knife. The ceramic is very brittle, and I've never seen an electrican that was gentle with a knife. <img src="/images/graemlins/grin.gif" alt="" />