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tion. The plaque or directory shall indicate the location of <br />system disconnecting means and that the structure contains <br />a stand-alone electrical power system. <br /> <br />(B) Facilities with Utility Services and PV Systems. <br />Buildings or structures with both utility service and a pho- <br />tovoltaic system shall have a permanent plaque or directory <br />providing the location of the service disconnecting means <br />and the photovoltaic system disconnecting means, if not <br />located at the same location. <br /> <br />VII. Connection to Other Sources <br /> <br />690.60 Identified Interactive Equipment. <br /> <br />Only inverters and ac modules listed and identified as <br />interactive shall be permitted in interactive systems. <br /> <br />690.61 Loss of Interactive System Power. <br /> <br />An inverter or an ac module in an interactive solar <br />photovoltaic system shall automatically de-energize its <br />output to the connected electrical production and <br />distribution network upon loss of voltage in that system and <br />shall remain in that state until the electrical production and <br />distribution network voltage has been restored. <br />A normally interactive solar photovoltaic system shall be <br />permitted to operate as a stand-alone system to supply loads <br />that have been disconnected from electrical production and <br />distribution network sources. <br /> <br />690.62 Ampacity of Neutral Conductor. <br /> <br />If a single phase, 2-wire inverter output is connected to the <br />neutral and one ungrounded conductor (only) of a 3-wire <br />system or of a 3-phase, 4-wire way-connected system, the <br />maximum load connected between the neutral and any one <br />ungrounded conductor plus the inverter output rating shall <br />not exceed the ampacity of the neutral conductor. <br /> <br />690.63 Unbalanced Interconnections. <br /> <br />(A) Single Phase. Single-phase inverters for photovoltaic <br />systems and ac modules in interactive solar photovoltaic <br /> 81 <br /> <br /> <br />