Does a cut or a slot in a printed circuit board increase clearance, creepage or both?
Some say it will increase clearance, but I don't think clearance will change because, even with a cut in the PCB, distance over the air will be the same. Thus, a cut will only affect the creepage distance. Please correct me if I'm wrong.
Or does it have nothing to do with either clearance or creepage, and is only for isolation?