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20.20.028 <br />692.3 Other Articles. <br />Wherever the requirements of other <br />articles of this Code and Article 692 <br />differ, the requirements of Article <br />692 shall apply, and, if the system is <br />operated in parallel with a primary <br />source(s) of electricity, the require- <br />ments in 705.14, 705.16, 705.32, and <br />705.43 shall apply. <br />692.4 Installation. <br />(A) Fuel Cell System. A fuel cell <br />system shall be permitted to supply a <br />building or other structure in addi- <br />tion to any service(s) of another <br />electricity supply system(s). <br />(B) Identification. A permanent <br />plaque or directory, denoting all <br />electrical power sources on or in the <br />premises, shall be installed at each <br />service equipment location. <br />692.6 Listing Requirement. <br />The fuel cell system shall be evalu- <br />ated and listed for its intended appli- <br />cation prior to installation. <br />II. Circuit Requirements <br />city of the feeder circuit conductors <br />from the fuel cell system(s) to the <br />premises wiring system shall not be <br />less than the greater of (1) name- <br />plate(s) rated circuit current or (2) <br />the rating of the fuel cell system(s) <br />over current protective device(s). <br />(C) Ampacity of Grounded or Neu- <br />tral Conductor. If interactive single- <br />phase, 2-wire fuel cell output(s) is <br />connected to the grounded or neutral <br />conductor and a single ungrounded <br />conductor of a 3-wire system or of a <br />3-phase, 4-wire wye-connected sys- <br />tem, the maximum unbalanced neu- <br />tral load current plus the fuel cell <br />system(s) output rating shall not <br />exceed the ampacity of the grounded <br />or neutral conductor. <br />692.9 Over current Protection. <br />(A) Circuits and Equipment. If the <br />fuel cell system is provided with <br />over current protection sufficient to <br />protect the circuit conductors that <br />supply the load, additional circuit <br />over current devices shall not be <br />required. Equipment and conductors <br />connected to more than one electrical <br />source shall be protected. <br />692.8 Circuit Sizing and Current. <br />(A) Nameplate Rated Circuit Current. <br />The nameplate(s) rated circuit current <br />shall be the rated current indicated <br />on the fuel cell nameplate(s). <br />(B) Conductor Ampacity and Over <br />current Device Ratings. The ampa- <br />(B) Accessibility. Over current de- <br />vices shall be readily accessible. <br />692.10 Stand-Alone Systems. <br />The premises wiring system shall <br />meet the requirements of this Code <br />except as modified by 692.10(A), <br />(B), and (C). <br />710-33 (Pleasanton April 2003) <br />