Document: NUREG-0800
Document ID: eedf1a7c-578e-463a-9608-b06af6312cf1
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1310/ML13108A095.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
CFR Part: 
CFR Title: 

Content:
l have to perform in the same time frame. When such tasks are performed in the same time period as the primary tasks, they contribute to crew’s workload, may introduce distractions or interruptions, and reduce the time available to perform primary tasks. Dependent tasks are divided into two categories: Generic dependent tasks and plant-specific dependent tasks. Generic tasks are those that apply to all or most plants and can be further categorized as administrative tasks, communications, and system/equipment-related actions. Generic dependent tasks are shown in Table 1. 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 ConOps to identify plant-specific dependent tasks that should be included in the scenarios to be analyzed (as determined in Section 5). 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 18.0-35 Draft Revision 3 – July 2015 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