Human Factors Engineering Issues for Safety-Related Operator Actions in Digital Instrumentation and Control System of APR1400

摘要

According to Branch Technical Position (BTP) 7-19 of the US Nuclear Regulatory Commission (NRC), the applicant should demonstrate by a suitable HFE analysis and validation that manual operator actions (i.e., safety-related and required operator actions) that can be performed inside the control room are reliable and acceptable as the automated backup functions in digital computer-based instrumentation and control systems [1]. In this perspective, Interim Staff Guidance (ISG)-05 is positioned as follows [2]; Credited manual operator actions and their associated interfaces (controls, displays, and alarms) must be specifically addressed in the applicant's HFE Program. The applicant should commit, in the D3 submittal, to include the proposed D3 coping actions in a HFE Program consistent with that described inNUREG-0711 [3].