Just to add two cents. I think it is a misconception that because things are on different breakers that they are some how isolated power wise. The only way that would be true is if the breaker were tripped or open (off). When the breaker is closed everything goes to a central electrical panel comes from the same feed and back plane so there is no isolation really.
Of course this is not quite the case when you have done as Krell Man suggested and use a dedicated and seperate incoming line. Though at some point all the power is coming from a central residential transformer.
Of course this is not quite the case when you have done as Krell Man suggested and use a dedicated and seperate incoming line. Though at some point all the power is coming from a central residential transformer.