New section 250.104(D) seems a bit strange to me, but perhaps I am reading it wrong. The way I am reading it, it would be required to bond the closest metal water piping even if I am using the structural metal as the electrode. Likewise, if I am using the water pipe as my electrode, I have to bond the nearest structural metal. Does this seem strange to any one else? I mean, 250.50 already requires them to be bonded together, why the redundancy?
