the internal pressures. No extra allowance has to be added for external
corrosion.T hiss avinga lone hass ometimes more than paid fort he
installation of the cathodic protection equipment.
Similarly,other cathodic protection systems have more than paid for their
installation costs by reduced maintenancec osts or by longer operating
periods between routine inspectionsand maintenancep eriods.
Corrosion of Linings and Coatings
54
CAT8247—CHAPTER 2—6/10/2006—12:05—SRIDHAR—XML MODEL B–pp. 43–54