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Preparing to be a Corrosion Engineer
Cathodic Protection How It Works
Criteria for Cathodic Protection
7 other sections not shown
ammeter amperes applied bacteria battery bond carbonaceous backfill cathodic protection current cathodic protection installations cathodic protection rectifiers cathodic protection system cell potential Chapter chart circuit resistance coated pipe coated pipeline coating materials coating resistance coil connected copper sulfate electrode corrosion cell corrosion control crossing current discharge current flow current output current requirements damage direct current discussed effect electrical electrical resistance electrically insulated electrolyte equipment example foreign line foreign pipeline galvanic anode installations galvanometer header cable high resistance hole indicated instrument insulated joint leaks low resistivity magnesium anodes metal meter method milliamperes millivolts Ohm's Law ohmmeter ohms operating over-the-line pins pipeline corrosion engineer polarization potential measurements potentiometer probe rods procedure protected pipeline readings reference electrode remote earth resistivity soil result short circuit shown in Figure soil resistivity steel stray current surface terminal test point typical voltage drop voltmeter volts wire zinc anodes