Mh. Sanwarwalla et Aj. Alsammarae, PROGRAM FOR LIFE EXTENSION ACID PRESERVING EXISTING RESOURCES FOR MOTOR CONTROL CENTER COMPONENTS, IEEE transactions on nuclear science, 42(4), 1995, pp. 1000-1004
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.