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A Separation Review Program for Reactor Protection System and Engineered Safeguard Systems in a Nuclear Power Plant

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2 Author(s)
Lamb, F.J. ; Bechtel Power Corporation ; Walrod, B.E.

This review program is utilized during the design of a nuclear power plant to insure separation between interdiscipline design for the Reactor Protection System (RPS) and Engineered Safeguard Systems (ESS). Color coded transparent drawings of the RPS and ESS are produced by each discipline. The separation is then reviewed by overlaying drawings of different disciplines on a light table. When this inspection shows that RPS or ESS elements have less than the established minimum separation, an analysis is performed to determine what, if any, design revision is necessary to insure proper separation. "Hazard" drawings are also made for determination of each type of potential hazard in each area of the plant. The review is a continuing process as the design progresses and is revised by any discipline. A complete writeup of apparent separation violations and resolution of the apparent violations is made for each stage of the separation review.

Published in:

Nuclear Science, IEEE Transactions on  (Volume:27 ,  Issue: 1 )