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i <br /> Figure 6. CROSS SECTION OF A TYPICAL <br /> CATHODIC PROTECTION WELL <br /> NOTE: SchemHtit, not to scale! <br /> L - Direct Current <br /> Source <br /> Vault with {Ract�fierl <br /> Vented Cap <br /> Cover Ground <br /> Surface <br /> or NU" Bend <br /> IX <br /> E1wricei Cable - <br /> * J ornabmes Run Ouuide <br /> of Vent Pipe <br /> Annular Space <br /> (2' Minimum) �r <br /> . • Buried Pipeline <br /> Annular Seal to be protected <br /> (Extends to at least 20" <br /> from ground surface) <br /> Non-Conductive <br /> Backftll <br /> - Vent Pipe <br /> (Casing) <br /> Conductive Backfifl <br /> Anodes <br /> Borehote <br />