Document: NUREG-0800
Document ID: 51b93b24-7bff-4144-949f-36812854b7aa
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1612/ML16125A114.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
CFR Part: 
CFR Title: 

Content:
HASE 3: INTEGRATED SYSTEM VALIDATION This section describes the attributes of an acceptable method for validating manual operator actions through an integrated system validation. 3.A. Method ISV is an evaluation using performance-based tests to determine whether an integrated system design (i.e., hardware, software, procedures, training, staffing and qualification, and physical environment) meets performance requirements and acceptably supports safe operation of the plant. The licensee/applicant should conduct an ISV of credited manual actions using a plant- referenced simulator in real time. Using the validation guidance in NUREG-0711, the licensee/applicant should measure operator response times (performance times) of all operating crews in representative event simulations. Performance times should be compared to the time available (per the event analysis results) and previous estimates of time required. In selecting personnel for event simulations, consideration should be given to the assembly of both nominal and minimum crew configurations, including shift supervisors, reactor operators, shift technical advisors, etc., that will participate in the validation tests. The composition of operations personnel need only include personnel who are relevant to the credited actions. Acceptable validation results will provide the basis for meeting the NRC’s design certification, license application or amendment request approval requirements. Unacceptable validation results will require modification of the design strategy. Modification of the design strategy would require reanalysis, re-validation and re-submittal for NRC staff review. If a successful manual action strategy cannot be achieved, automation should be considered. The ISV shall be implemented and documented as an ITAAC item or license condition for plants licensed under 10 CFR Part 52 or as a license condition for operating plants that have not modified the plant-referenced simulator in advance of the control