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ORDINANCE NO. NS-1811 <br />PAGE EIGHT <br /> <br />supplied consists of the following number and types of circuits: <br />(1) Two or more 2-wire branch circuits supplied by a 2-wire <br />feeder; (2) More than two 2-wire branch circuits supplied by a <br />3-wire feeder; and (3) Two or more 3-wire branch circuits supplied <br />by a 3-wire feeder. <br /> <br />SECTION 21: That the Santa Ana Municipal Code is hereby amended <br />by adding a Section, to be numbered Section 8-862, which said <br />section reads as follows: <br /> <br />Sec. 8-862. Grounding Electrode System. (Section 250-81). <br /> <br /> Section 250-81 of the National Electrical Code is hereby <br />amended to read as follows: <br /> <br /> Sec. 250-81. Grounding Electrode System. The grounding <br />electrode system shall consist of not less than twenty (20) feet <br />of bare copper not smaller than No. 4 or not less than twenty (20) <br />feet No. 4 steel reinforcing bar; or not less than twenty (20) <br />feet of three-fourths (3/4) inch galvanized steel conduit; or an <br />approved equal installed as follows: The electrode shall be <br />located in the bottom of the outside foundation footing with <br />maximum concrete encasement of three (3) inches. One end of the <br />electrode shall extend out of the foundation adjacent to the <br />equipment to be grounded to permit the grounding conductor to be <br />secured by an approved method. The interior metal water piping <br />shall be bonded to the grounding electrode, the grounding <br />electrode conductor, or the grounded service entrance conductor. <br /> <br />SECTION 22: That section 8-863 of the Santa Ana Municipal Code <br />is hereby amended to read as follows: <br /> <br /> Sec. 8-863. Made electrodes (Section 250-83). <br /> <br /> Section 250-83 of the National Electrical Code is hereby <br />amended to read as follows: <br /> <br /> 250-83. Where the electrode specified in Sec. 250-81 is <br />not feasible, the following electrodes may be used upon approval <br />of the enforcing authority: <br /> <br />(i) <br /> <br />Plate electrodes. Each plate electrode shall present <br />not less than two (2) square feet of exterior soil. <br />Electrodes of iron or steel plates shall be at least <br />one-fourth (1/4) inch in thickness. Electrodes of <br />nonferrous metal shall be at lest 0.06 inch in <br />thickness. <br /> <br /> <br />