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:
Plant-specific dependent tasks are unique to the applicant’s design. Applicants should systematically analyze the plant design, the use of new technologies and new concepts of operations to identify plant-specific dependent tasks that should be included in the scenarios to be analyzed (as determined in Section 5). 18.0-38 Revision 3 – December 2016 Applicants should consider the following in their analysis of plant-specific dependent tasks: • Special work needed to access underground equipment • Work related to passive systems • Work related to operate backup systems to the passive systems • Fuel loading • Load-following operations • Novel refueling methods • Any special situation related to the primary task that results in reduced time for operators to respond • Monitoring requirements for multiple reactor configurations Table 1: Generic Dependent Tasks Type of Dependent Task Example Activities Administrative Initiate technical specification Apply error-prevention tools, such as independent verification of valve repositioning, related to primary tasks Log keeping Communications Communicate with auxiliary operators Task briefings Manage command and control challenges Interface with in-plant emergency or support organizations Communicate with offsite emergency organization Communicate with the NRC System/equipment-related actions Alarm monitoring and response for primary task equipment Initiate emergency response actions 4. Identify Potential Independent Tasks a. For each of the challenging operating conditions, the applicant should identify any independent tasks which operators may need to perform. Additional Information: Independent tasks are not specifically linked to the primary tasks, but may need to be performed within the same time frame as primary tasks, thus may increase operator or overall staff workload. Even when independent tasks do not significantly add to workload, they can still create distractions that may impede primary task