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2003 APRIL
City of Pleasanton
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MUNICIPAL CODE SUPPLEMENTS
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2003 APRIL
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1/20/2009 2:04:58 PM
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7/13/2007 1:34:48 PM
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CITY CLERK
CITY CLERK - TYPE
CODE SUPPLEMENTS
DOCUMENT DATE
2/20/2002
DOCUMENT NO
2003 APRIL
DOCUMENT NAME
SUPPLEMENT NO 12
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20.20.028 <br />(A) Fuel Cell System Output. The <br />fuel cell system output from a stand- <br />alone system shall be permitted to <br />supply ac power to the building or <br />structure disconnecting means at <br />current levels below the rating of <br />that disconnecting means. <br />(B) Sizing and Protection. The cir- <br />cuit conductors between the fuel cell <br />system(s) output and the building or <br />structure disconnecting means shall <br />be sized based on the output rating <br />of the fuel cell system(s). These <br />conductors shall be protected from <br />over currents in accordance with <br />240.4. The over current protection <br />shall be located at the output of the <br />fuel cell system(s). <br />(C) Single 120-Volt Nominal Supply. <br />The inverter output of a stand-alone <br />fuel cell system shall be permitted to <br />supply 120 volts, nominal, to single- <br />phase, 3-wire 120/240 volt service <br />equipment or distribution panels <br />where there are no 240-volt loads <br />and where there are no multiwire <br />branch circuits. In all installations, <br />the rating of the over current device <br />connected to the output of the fuel <br />cell system(s) shall be less than the <br />rating of the service equipment. This <br />equipment shall be marked as fol- <br />lows: <br />WARNING <br />SINGLE 120-VOLT SUPPLY <br />DO NOT CONNECT MULTIWIRE <br />BRANCH CIRCUITS! <br />III. Disconnecting Means <br />692.13 All Conductors. <br />Means shall be provided to discon- <br />nect all current-carrying conductors <br />of a fuel cell system power source <br />from all other conductors in a build- <br />ing or other structure. <br />692.14 Provisions. <br />The provisions of 225.31 and 225.33 <br />through 225.40 shall apply to the <br />fuel cell source disconnecting means. <br />The disconnecting means shall not be <br />required to be suitable as service <br />equipment and shall be rated in ac- <br />cordance with 692.17. <br />692.17 Switch or Circuit Breaker. <br />The disconnecting means for un- <br />grounded conductors shall consist of <br />readily accessible, manually operable <br />switch(es) or circuit breaker(s). <br />Where all terminals of the discon- <br />necting means may be energized in <br />the open position, a warning sign <br />shall be mounted on or adjacent to <br />the disconnecting means. The sign <br />shall be clearly legible and shall <br />have the following words or equiva- <br />lent: <br />DANGER <br />ELECTRIC SHOCK HAZARD. <br />DO NOT TOUCH TERMINALS. <br />TERMINALS ON BOTH THE <br />LINE AND LOAD SIDES <br />MAY BE ENERGIZED IN <br />THE OPEN POSITION. <br />IV. Wiring Methods <br />(Pleasanton April 2003) 710-34 <br />
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