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MAGNESIUM ANODES <br />UNDERGROUND USE <br />The Harco Corporation Packaged Magnesium Anodes are the most widely used <br />material for the application of cathodic protection on underground installations. <br />Corrosion is an electrochemical reaction based on universal laws of nature. All metallic <br />structures corrode. It is just a question of how quickly. The job of the corrosion <br />engineer is to slow down or halt this process by using cathodic protection in the form of <br />Magnesium Anodes. <br />Anodes are typically installed in a vertically augered hole to a depth of 3' to 5' and also <br />3' to 5' away from the tank. The hole diameter shall be such to easily accommodate the <br />size of the anode. After the hole is augered, the packaged anode is lowered in, and soil <br />is firmly tamped around the package so it is in intimate contact with the package. <br />Lead wires from the anodes are run underground and are connected to the tank via the <br />anode connectors. Additional lengths of #12 AWG copper wire with Type TW insulation <br />can be used if additional length lead wire is required. <br />MODEL AND SPECIFICATIONS <br />MAGNESIUM <br />A B C D E BACKFILL <br />TOTAL <br />WEIGHT <br />WEIGHT <br />WEIGHT <br />IN POUNDS <br />IN POUNDS <br />PER ANODE <br />9# H-1 <br />3" 3" 13.5" 15.5" 6" 15# <br />24# <br />17# H-1 <br />4" 4" 17" 21" 6.5" 25# <br />42# <br />?QS <br />11 <br />)RE <br />iIUM ANODE <br />.L <br />SAG <br />SOLDER CONNECTION <br />3COMPOUND <br />IGF <br />Pollution 5827 Happy Hollow Rd. Suite 1-B <br />Control Milford, OH 45150-1830 <br />Tel: (513) 831-1165 Fax: (513) 965-4812 <br />Systems, Inc E-mail: Polconsys@aol.com <br />www.PollutionContTOISysteM.COM <br />