We just did a solar job w/ roof-mounted panels. Does 690.47 (D) require an additional electrode to be run just to the arrays?
Between the inverter and the panels we have EMT conduit w/ a grounding conductor that bonds all the arrays.
From the inverter we have an electrode to the water main.
per 690.47 (C) (3): a single conductor shall be permitted to perform the multiple functions of dc grounding, ac grounding, and bonding between ac and dc systems.
per 690.47 (C) (6): a common grounding electrode shall be permitted to be used for both systems...
Between the inverter and the panels we have EMT conduit w/ a grounding conductor that bonds all the arrays.
From the inverter we have an electrode to the water main.
per 690.47 (C) (3): a single conductor shall be permitted to perform the multiple functions of dc grounding, ac grounding, and bonding between ac and dc systems.
per 690.47 (C) (6): a common grounding electrode shall be permitted to be used for both systems...