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20.20.027 device rating for module protection, 690.54 Interactive System Point of and with the following ratings: Interconnection. (1) Open-circuit voltage All interactive system(s) points of (2) Operating voltage interconnection with other sources (3) Maximum permissible system shall be marked at an accessible voltage location at the disconnecting means (4) Operating current as a power source with the maximum (5) Short-circuit current ac output operating current and the (6) Maximum power operating ac voltage. 690.52 Alternatin>;-Current Photovol- 690.55 Photovoltaic Power Systems taic Modules. Employin~ EnerQV Storage. Alternating-current modules shall be Photovoltaic power systems employ- marked with identification of termi- ing energy storage shall also be pals or leads and with identification marked with the maximum operating of the following ratings: voltage, including any equalization voltage and the polarity of the (1) Nominal operating ac voltage grounded circuit conductor. (2) Nominal operating ac frequency (3) Maximum ac power 690.56 Identification of Power (4) Maximum over current device Sources. rating for ac module protection (A) Facilities with Stand-Alone Sys- 690.53 Photovoltaic Power Source. terns. Any structure or building with a photovoltaic power system that is A marking, specifying the photo- not connected to a utility service voltaic power source rated as fol- source and is a stand-alone system lows, shall be provided by the in- shall have a permanent plaque or staller at the site at an accessible directory installed on the exterior of location at the disconnecting means the building or structure at a readily for the photovoltaic power source: visible location acceptable to the au- thority having jurisdiction. The (1) Operating current plaque or directory shall indicate the (2) Operating voltage location of system disconnecting (3) Maximum system voltage means and that the structure contains (4) Short-circuit current a stand-alone electrical power sys- tem. FPN: Reflecting systems used for irradiance enhancement may result (B) Facilities with Utility Services in increased levels of output cur- and PV Systems. Buildings or struc- rent and power. tures with both utility service and a __. 710-27 (Pleasanton April 2003)