PROGRAM FOR LIFE EXTENSION ACID PRESERVING EXISTING RESOURCES FOR MOTOR CONTROL CENTER COMPONENTS

Many nuclear power plants have motor control centers (MCCs) installed in a harsh, radiation only, environment. Procurement of safety-related replacement devices for these MCCs is an economic burden for the stat ions if these MCCs have become obsolete. Identical replacement compone nts for many MCCs installed in older plants (ITE Gould, Allis-Chalmers , Klockner-Moeller, Cutler-Hammer, etc.) are no longer available. Plan ts are left with the option of either retrofitting these MCCs or findi ng ways to extend the qualified lives of the safety-related components to minimize replacement costs. One ComEd nuclear station has embarked on a program to minimize the economic burden for the replacements of Klockner-Moeller (K-M) MCC components. This paper discusses the progra m adopted by this station and its economic benefits to ComEd.