Actions for A sequential trigger procedure for use in monitoring nuclear power plant emergency diesel generator reliability [electronic resource].

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A sequential trigger procedure for use in monitoring nuclear power plant emergency diesel generator reliability [electronic resource].

Published
Rockville, Md. : U.S. Nuclear Regulatory Commission, 1992.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
67 pages : digital, PDF file
Additional Creators
Los Alamos National Laboratory, U.S. Nuclear Regulatory Commission, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The reliability of onsite emergency alternating current (ac) power supplies is a major factor in assuring acceptable safety at light-water-cooled nuclear power plants. The NRC has determined that an amendment to 10 CFR 50.63, ``Station Blackout,`` is the appropriate means for imposing new requirements regarding electric diesel generators (EDG) reliability. The proposed rule and regulatory guide consists of the following fundamental elements: (1) establishment of EDG target reliability levels that would comport with the reliability levels assumed in a licensee`s coping analysis for station blackout; (2) trigger values with respect to EDG failures to start and loadrun which serve two purposes -- to provide a warning of EDG degradation, and to provide a basis for taking regulatory action when there is reasonable evidence from surveillance testing that EDG reliability has degraded below the selected target values; and (3) a reporting regime for EDG failures consistent with this performance-based approach. The purpose of this report is to assess the performance of the proposed triggers in a simulated operational environment and to describe and evaluate an alternative trigger procedure which improves the detection of EDG reliability degradation without increasing false alarms.
Report Numbers
E 1.99:la-ur--92-3280
E 1.99: conf-9210222--1
conf-9210222--1
la-ur--92-3280
Subject(s)
Other Subject(s)
Note
Published through SciTech Connect.
12/01/1992.
"la-ur--92-3280"
" conf-9210222--1"
"DE93003703"
US Nuclear Regulatory Commission meeting,Washington, DC (United States),7 Oct 1992.
Tietjen, G.L.; Martz, H.F.; Kvam, P.H.
Funding Information
W-7405-ENG-36
View MARC record | catkey: 14366134