Criteria for safety-related operator actions

Book · Sat Jan 01 04:00:00 EST 1977

OSTI ID:7311152

During normal operation of nuclear power plants, the operator makes many decisions and initiates many actions that are related to the safety of the plant. In the course of abnormal events it is worthwhile, prudent, and often necessary that operator action be performed to ensure the safety of the plant and the environment. Criteria are presented which are intended to provide guidance as to when it is acceptable to rely on operator actions to mitigate the consequences of design basis events. Operator actions following a design basis event are either required, optional, or unplanned. Required operator actions include those that are part of the plant design basis and which initiate or adjust safety system equipment to provide the minimum acceptable performance. Optional operator actions, which are not required by the plant design basis, may be useful in improving the safety system performance; however, the consequences must be acceptable in the absence of such actions. Unplanned operator actions are those which may be useful to mitigate the consequences of unforeseen situations. The criteria are limited to required operator actions used in the design basis events (i.e., specific accidents) that are examined in Chapter 15 of the SAR for the plant where manual actions are used to prevent design requirements from being violated.

• OSTI ID: 7311152
• Report Number(s): ANS-51.4; ANSI-N-660
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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OPERATION
PERSONNEL
REACTOR OPERATION
REACTOR SAFETY
SAFETY
SPECIFICATIONS
STANDARDS