ML18178A223

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Enclosure 7 - APR1400-E-I-NR-14004-NP, Rev. 3, Task Analysis Implementation Plan
ML18178A223
Person / Time
Site: 05200046
Issue date: 05/31/2018
From:
Korea Hydro & Nuclear Power Co, Ltd, Korea Electric Power Corp
To:
NRC/NRO/DNRL
Shared Package
ML18178A202 List:
References
MKD/NW-18-0091L APR1400-E-I-NR-14004-NP, Rev 3
Download: ML18178A223 (53)
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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 Task Analysis Implementation Plan Revision 3 Non-Proprietary May 2018 Copyright 2018 Korea Electric Power Corporation &

Korea Hydro & Nuclear Power Co., Ltd All Rights Reserved KEPCO & KHNP

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 REVISION HISTORY Revision Date Page Description December 0 All First Issue 2014 vii Editorial correction.

(Abstract) Description for reference plant added.

R_383-8458(108) 3-4 Editorial correction.

(2) Description for reference plant, and tasks identified for degraded I&C and HSI condition added.

R_383-8458(108)

Description for TA scope added R_260-8283(30) 6 Description for performance shaping factor added.

(3.1.1) R_315-8091(54) 7 Description for changes in staffing added.

(3.2.1) R_315-8091(55) 9 Editorial correction.

(3.5.5) R_374-8481(102) 10 Description for HSI inventory established by TA added.

(3.6) R_315-8091(51) 1 March 2017 11 Description for TA task selection methodology deleted (4.1) and modified.

R_260-8283(30)

Editorial correction.

R_260-8283(31) 13 Description for control action allocation to combination (4.1.1.3) of human and machine added.

R_260-8283(33) 14 Description for process to identify additional task by (4.1.3) SME added.

R_260-8283(34) 16 Description that IHA links to related documents in task (4.2.1) narrative database added.

R_315-8091(43) 16 Supplemental description for subtask added.

(4.2.1) R_315-8091(50)

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 Revision Date Page Description 16 Description that accident with concurrent CCF (4.2.1) considered as plant condition added R_315-8091(51) 17 Description that TIHA links to related documents in task (4.2.1) narrative database added.

R_315-8091(43) 17 Description for special knowledge of staff modified.

(4.2.1) R_260-8283(39)

R_260-8283(39R) 17 Definition of time available clarified.

(4.2.1) R_315-8091(42) 17 Description for additional staffing added.

(4.2.1) R_315-8091(52) 18 Description for protective clothing added.

(4.2.1) R_374-8481(100) 18 Editorial correction.

(4.2.1) R_260-8283(37) 18 Description for administrative task and critical function (4.2.1) monitoring task modified.

R_260-8283(40) 18 Supplemental description for performance shaping (4.2.1) factor added.

R_315-8091(54) 19 Description for time required added to task narrative (4.2.1) database.

R_260-8283(38) 19 Description for HSI condition added.

(4.2.1) R_383-8458(110) 20 Editorial correction.

(4.2.2.1) R_383-8458(110) 20 Editorial correction.

(4.2.2.1) R_374-8481(102) 20 Description for accuracy added to process monitoring (4.2.2.1) database.

R_260-8283(36) 20 Description that HED to be identified during accident (4.2.2.1) with concurrent CCF condition added.

R_315-8091(51)

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 Revision Date Page Description 22 Description that HED to be identified during accident (4.2.2.2) with concurrent CCF condition, and correlation between HSI inventory and previous plant design added.

R_315-8091(51) 22 Description for backup HSI added.

(4.2.2.2) R_383-8458(110) 24 Supplemental description for subtask time added.

(4.3) R_315-8091(50) 24 Description for changes in staffing added.

(4.3) R_315-8091(55) 25 Terminology changed. (plant analyst -> systems safety (4.3.1.1) engineer)

R_315-8091(42) 26 Description for task initiation time modified.

(4.3.1.2.1) R_315-8091(44) 27 Description for transition time added (4.3.1.2.2) R_315-8091(52) 28 Description for minimizing bias of subtask time added.

(4.3.1.2.2) R_315-8091(45) 29 Description for minimizing bias of characterization time (4.3.1.2.3) added.

R_315-8091(46) 30 Description for minimizing bias of administration time (4.3.1.2.4) added.

R_315-8091(47) 30 Description for minimizing bias of critical function time (4.3.1.2.5) added.

R_315-8091(48) 31 Description for minimizing bias of process delay time (4.3.2) added.

R_315-8091(49) 31 Supplemental description for time margin added.

(4.3.2) R_315-8091(53) 32 Description for independent review added.

(4.3.3) R_315-8091(48) 34 Description for TA ITAAC deleted.

(6) R_250-8282(28)

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 Revision Date Page Description 35 Editorial correction.

(7) R_374-8481(102) 35 Reference added. (NUREG-1122)

(7) R_260-8283(39R) 1, 3, 6, 7, 8, 9, Editorial corrections. (typos, acronyms, references) 15, 17, 19, 20, 23, 26, 29, 30, 31, 32, 33, 35, 36 (Overall) 3, 4 Editorial correction for task analysis scope.

(2) 11E47-CR-17-J-220 2 January 2018 4 Supplemental description for generic assumption (2) added.

R_553-9084(137) 24, 29 Editorial corrections. (typos) 3 May 2018 (4.3, 4.3.1.2.4) 11E47-CR-18-J-030 KEPCO & KHNP v

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 This document was prepared for the design certification application to the U.S. Nuclear Regulatory Commission and contains technological information that constitutes intellectual property of Korea Hydro & Nuclear Power Co., Ltd.

Copying, using, or distributing the information in this document in whole or in part is permitted only to the U.S.

Nuclear Regulatory Commission and its contractors for the purpose of reviewing design certification application materials. Other uses are strictly prohibited without the written permission of Korea Electric Power Corporation and Korea Hydro & Nuclear Power Co., Ltd.

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 ABSTRACT This document provides the implementation Plan (IP) for the human factors engineering (HFE) task analysis (TA) program element (PE), which is one of 12 PEs in the Advanced Power Reactor 1400 (APR1400) HFE Program. This IP governs the technical activities conducted within the TA PE by defining the scope and methodology of the TA PE, including the output products generated and the qualifications of the personnel who generate the products.

The main purposes of the TA are to:

1. Define the APR1400 human systems interface (HSI) inventory of process indications, alarms and controls, that support the accomplishment of plant operations tasks for normal, abnormal and emergency conditions. The HSI inventory is implemented in other APR1400 HFE PEs through soft displays and controls, control panels, operating procedures, and training programs.
2. Establish the number and qualifications of operations personnel for individual plant operations task. Where deemed necessary, staffing for a specific task is based on a quantitative analysis of workload and time margin. While the TA examines staffing on a task-by-task basis, the HFE staffing and qualifications (S&Q) PE examines staffing in aggregate for all plant modes to assure a meaningful job and adequate workload.
3. Confirm the human performance (HP) assumptions for important human actions (IHAs) as defined in the HFE treatment of important human actions (TIHA) PE. The TIHA extracts these HP assumptions from the APR1400 probabilistic risk assessment (PRA), transient and accident analysis (TAA) and the defense-in-depth and diversity coping analysis (D3CA).

The TA is conducted for plant operations tasks conducted by licensed and non-licensed operators, which are identified in (1) APR1400 operating procedures that are available at the time the TA is conducted or (2) procedures from APR1400 predecessor plants, predecessor designs, or reference plants; the predecessors and references are identified in the APR1400 HFE Program Plan (HFEPP). This encompasses plant operations tasks for all modes, including shutdown and refueling. The TA is conducted by plant operations subject matter experts (SMEs) whose qualifications are defined in the HFEPP. SMEs use their experience to select additional tasks for TA implementation that are known to challenge plant operating crews.

The TA may be conducted before or after instrumentation and control (I&C) design requirements have been established by the mechanical and I&C system designers for a specific plant system. If the TA is conducted before the I&C design, then the TA establishes HSI inventory requirements for the plant system design. If the TA is conducted after the I&C design has been developed for a specific plant system, then the TA confirms that the I&C design is acceptable to support the HSI inventory; if it is not, human engineering discrepancies (HEDs) are generated as the conclusion of the TA PE. For all plant systems, the piping and instrumentation diagrams are the starting point for creating HSI indication and control designs during the APR1400 human-system interface design (HD) HFE PE. Any discrepancies between these HSI designs and the HSI inventory defined by the TA are identified during the HFE verification and validation (V&V) PE. The HFE PP describes the HED resolution process.

The TA is a one-time non-recurring HFE PE whose closure is marked by issuance of the TA results summary report (ReSR). However, the analyses conducted within the TA are iterative in that HEDs generated by other HFE PEs are evaluated for any potential changes needed in those analyses. Similarly, APR1400 plant design changes are evaluated for their impact to the output of all HFE PEs, including the output of the TA PE, and HEDs are generated as needed. Therefore, any analysis changes that may be needed after completing the TA ReSR are managed through the HED resolution process. HEDs that affect TA outputs are resolved prior to completing the HD, which establishes the APR1400 HSI design for V&V.

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 After completion of the V&V, site specific changes, including any required TA output changes, are managed within the design implementation (DI) HFE PE, which is a recurring PE for each plant. The DI also ensures that all HEDs are closed.

Section 1 of this document defines the TA purpose, Section 2 establishes the scope, Section 3 provides a methodology overview, Section 4 provides the details of the implementation plan, including the format and content of each TA output product, Section 5 establishes the qualification requirements for the TA implementation team, and Section 6 defines the required content of the TA ReSR, which demonstrates that the TA was conducted in accordance with this IP. Appendix A demonstrates conformance of this IP to the NUREG-0711 review criteria for the TA.

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TABLE OF CONTENTS

1. PURPOSE ............................................................................................................ 1
2. SCOPE ................................................................................................................. 3
3. METHODOLOGY OVERVIEW ............................................................................... 5 3.1. Basic Task Analysis ........................................................................................................................ 6 3.1.1. Task Narrative ................................................................................................................................. 6 3.1.2. Human-System Interface Inventory ................................................................................................ 6 3.1.3. Task Evaluation............................................................................................................................... 7 3.2. Task Timing Analysis....................................................................................................................... 7 3.2.1. Workload ......................................................................................................................................... 7 3.2.2. Time Margin .................................................................................................................................... 8 3.3. Task Selection ................................................................................................................................. 8 3.4. Independent Review ....................................................................................................................... 8 3.5. Task Analysis Interfaces with Other HFE Program Elements......................................................... 8 3.5.1. Operating Experience Review ........................................................................................................ 8 3.5.2. Treatment of Important Human Actions .......................................................................................... 9 3.5.3. Functional Requirements Analysis and Function Allocation ........................................................... 9 3.5.4. Staffing and Qualifications .............................................................................................................. 9 3.5.5. Human-System Interface Design .................................................................................................... 9 3.5.6. Procedure Development ................................................................................................................. 9 3.5.7. Training Program Development ...................................................................................................... 9 3.5.8. Human Factors Verification and Validation ................................................................................... 10 3.6. Task Analysis Interface with the APR1400 Plant Design .............................................................. 10
4. IMPLEMENTATION ............................................................................................ 11 4.1. Task Selection ............................................................................................................................... 11 4.1.1. Previous Human Factor Engineering Program Elements............................................................. 12 4.1.1.1. Operating Experience Review ...................................................................................................... 12 4.1.2. Plant Operating Procedures ......................................................................................................... 13 4.1.3. Subject Matter Expert Experience ................................................................................................ 14 4.2. Basic Task Analysis ...................................................................................................................... 15 4.2.1. Task Narrative ............................................................................................................................... 15 4.2.2. Human-System Interface Inventory .............................................................................................. 19 4.2.3. Task Evaluation............................................................................................................................. 22 4.3. Task Timing Analysis..................................................................................................................... 23 4.3.1. Workload ....................................................................................................................................... 24 KEPCO & KHNP ix

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 4.3.2. Time Margin .................................................................................................................................. 31 4.3.3. Independent Review ..................................................................................................................... 31

5. IMPLEMENTATION TEAM .................................................................................. 33
6. RESULTS

SUMMARY

REPORT .......................................................................... 34

7. REFERENCES .................................................................................................... 35
8. DEFINITIONS..................................................................................................... 36 APPENDIX A - NUREG-0711, REV. 3, REVIEW CRITERIA CONFORMANCE TABLE ....... A1 KEPCO & KHNP x

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 LIST OF TABLES Table 5-1 TA Implementation Summary ................................................................................................... 33 LIST OF FIGURES Figure 3-1 Task Analysis Process .............................................................................................................. 5 KEPCO & KHNP xi

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 ACRONYMS AND ABBREVIATIONS AOP abnormal operating procedure APR1400 Advanced Power Reactor 1400 BTA basic task analysis CBP computer based procedure CCF common cause failure COL combined license CTL challenge task list D3CA diversity and defense-in-depth coping analysis DCD Design Control Document DI design implementation EOF emergency operation facility EOG emergency operating guideline EOP emergency operating procedure ESCM engineered safety feature control module FA function allocation FRA functional requirements analysis GOP general operating procedure HA human action HD human-system interface design HED human engineering discrepancy HFE human factors engineering HFEPP human factors engineering program plan HP human performance HSI human-system interface I&C instrumentation and control IFPD information flat panel display IHA important human action IP implementation plan KEPCO Korea Electric Power Corporation KHNP Korea Hydro & Nuclear Power Co., Ltd.

LCS local control station MCR main control room NLO non-licensed operator OER operating experience review KEPCO & KHNP xii

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 PE program element PP program plan PRA probabilistic risk assessment PSF performance-shaping factor RCS reactor coolant system ReSR results summary report RO reactor operator RSR remote shutdown room S&Q staffing and qualifications SDCV spatially dedicated continuously visible SME subject matter expert SRO senior reactor operator SST standard subtask time TA task analysis TAA transient and accident analysis TIHA treatment of important human actions TmAv time available TmEn time engaged TS trade secret TSC technical support center TTA task timing analysis V&V verification and validation KEPCO & KHNP xiii

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 Page intentionally blank KEPCO & KHNP xiv

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3

1. PURPOSE This document provides the implementation plan (IP) for the human factors engineering (HFE) task analysis (TA) program element (PE), which is one of 12 PEs within the Advanced Power Reactor 1400 (APR1400) HFE Program. This IP governs the technical activities conducted within the TA PE by defining the scope and methodology of the TA PE, including the output products generated and the qualifications of the personnel who generate the products.

The TA is performed primarily to:

1. Define the human-system interface (HSI) inventory of process indications, alarms, controls, and communications, and the characteristics of that inventory the support the accomplishment of plant operations tasks for normal, abnormal, emergency conditions. The HSI inventory is implemented during the HFE human-system interface design (HD) PE through soft displays and controls, control consoles and computerized operating procedures. A human engineering discrepancy (HED) is generated if the TA concludes that the required HSI inventory is not supported by the instrumentation and controls (I&C) and communications documented in the plant design at the time the TA is conducted. Where the plant design documentation is not sufficiently detailed, the HSI inventory defined by the TA establishes the minimum I&C and communications requirements for the plant design.
2. Establish the number and qualifications of operations personnel for each plant operations task, including quantitative analyses of workload and time margin where deemed necessary by defined criteria. The TA establishes staffing on a task-by-task basis, whereas, the staffing and qualifications (S&Q) PE examines staffing through the combination of multiple tasks, since they are aggregated during various plant evolutions. An HED is generated if the TA concludes that a task cannot be supported by the staffing available at the plant location designated to perform the task. Minimum and maximum staffing for certain locations are according to the design constraints defined in the human factors engineering program plan (HFEPP) (Reference 1).
3. Confirm the human performance (HP) assumptions for important human actions (IHAs) as defined in the treatment of important human actions (TIHAs) PE. The TIHA extracts these HP assumptions from the APR1400 probabilistic risk assessment (PRA), the transient and accident analysis (TAA), and the diversity and defense-in-depth coping analysis (D3CA). HP assumptions include HFE characteristics such as personnel availability, HSI locations, environmental and stress conditions, and time available (TmAv), to reach the final assumption that operators can reliably perform the action. An HED is generated if the TA concludes that an IHA cannot be performed.

The TA is also performed to:

4. Confirm that issues identified in the HFE operating experience review (OER) PE that are assumed to be resolved through tasks assigned to plant operators, are resolved with no outstanding issues. An HED is generated if the TA concludes that a task cannot be performed.
5. Define the manual control tasks, the resulting HSI inventory and staffing for the control actions allocated to humans in the HFE functional requirements analysis and function allocation (FRA/FA) PE. An HED is generated if the TA concludes that a human control action allocation cannot be supported.
6. Define the supervising and backup control tasks, the resulting HSI inventory and staffing for the control actions allocated to machine in the FRA/FA. An HED is generated if the TA concludes that a machine control action allocation cannot be supported.

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3

7. Resolve any HEDs generated during the FRA/FA for allocations that are not consistent with the plant design.
8. Define the HSI inventory and staffing for similar tasks that have been known to challenge operating crews at predecessor plants.

In summary, the TA establishes the HSI inventory requirements and staffing needed for a crew to perform each task necessary to operate the APR1400 during normal, abnormal and emergency conditions.

As demonstrated in Appendix A, this IP conforms to the review criteria of NUREG-0711, Human Factors Engineering Program Review Model, Rev. 3, Section 5 (Reference 2). Section 5 of this TA IP defines the subject matter experts (SMEs) required to conduct the task analyses and the independent review; the HFEPP defines the qualifications of the SMEs. This document also defines the required content of the TA results summary report (ReSR), which demonstrates that the TA was conducted in accordance with this IP.

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3

2. SCOPE The scope of TA includes:

- All IHAs as determined by probabilistic and deterministic means

- Tasks that were not identified as IHAs but have negative consequences if performed incorrectly

- Tasks that are new compared to those in predecessor plants, such as ones related to new systems or procedures

- Tasks that, while not new, are performed significantly differently from predecessor plants

- Tasks related to monitoring of automated systems that are important to plant safety, and the use of automated support aids for personnel, such as computer based procedures

- Tasks related to identifying the failure or degradation of automation, and implementing backup responses

- Tasks anticipated to impose high demands on personnel, e.g., little time or high workload (such as administrative tasks that contribute to work load and challenge ability to monitor the plant)

- Tasks important to plant safety that are undertaken during maintenance, tests, inspections, and surveillances

- Tasks with potential concerns for personnel safety (such as maintenance tasks performed in the containment)

The TA scope additionally includes tasks performed by senior reactor operators (SROs), reactor operators (ROs) and non-licensed operators (NLOs) in the main control room (MCR), remote shutdown room (RSR), technical support center (TSC), emergency operation facility (EOF), and local control stations (LCSs), as follows:

1. Tasks directed by normal, abnormal, emergency, and alarm response procedures from APR1400 or procedures from predecessor plants, predecessor designs, or reference plants, during all modes of operation, shutdown, and refueling. Abnormal procedures include the following degraded I&C and HSI conditions:
a. Continued stable operation with loss of all non-safety HSI
b. Accident mitigation and safe shutdown with only safety HSI
c. Accident mitigation and plant stabilization with concurrent common cause failure (CCF) in digital I&C systems (as defined by the D3CA)
d. Safe shutdown from the RSR While the procedures from predecessor plants, predecessor designs, and reference plants are expected to have a high level of applicability to the APR1400, SMEs utilize these procedures in conjunction with APR1400 system design and analysis documentation (e.g., APR1400 Chapter 15 safety analysis and D3CA) to ensure the tasks applicable to APR1400 are correctly and completely identified, and that non-applicable tasks are excluded. Procedures from predecessor plants, predecessor designs, and reference plants which are used by SMEs are to be translated KEPCO & KHNP 3

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 to English before use. The tasks identified for degraded I&C and HSI conditions include compensatory actions and the transition to back-up systems.

2. Tasks required for manual control for the control actions with human allocations from the FRA/FA PE.
3. Tasks required for supervising and backing up automation for the control actions with machine allocations from the FRA/FA PE.
4. Tasks associated with issues identified in the OER PE that are assumed to be resolved by actions assigned to plant operators.
5. Tasks performed from the TSC and LCS that directly support operations, abnormal event, or accident mitigation. The TA encompasses communication with operators in the MCR or RSR.
6. The TA for the EOF is limited to defining the plant safety information requirements (i.e., safety parameter display system) and communication with operators in the MCR or RSR.

The tasks identified in the TA scope defined above originate from other HFE PEs or plant procedures.

The tasks include tasks executed with both paper and computer-based procedures. SME judgment is therefore not required in the task selection. The following areas are evaluated by SMEs using their plant operations and simulator training experience to identify and select additional tasks that have challenged predecessor plant operating crews:

1. Surveillance, test, inspection and maintenance, with special focus on tasks that pose potential threats to personnel safety and plant safety.
2. Operational tasks that are precursors to plant transients that are not procedure based and are not IHAs. These tasks include unusual failure modes that may not have alarm response procedures, such as a spurious opening of a pressurizer spray valve and a spurious control rod withdrawal, or situations in which the operators had to revert to skill-based manual operation (e.g., low power steam generator level control).
3. Beyond design basis conditions such as station blackout and severe accident.
4. Tasks associated with the APR1400 fire safe shutdown analysis.

In addition, SMEs use their judgment and experience to identify and select tasks they believe challenge plant operations crews, based on new or unique features of the APR1400 plant design, with consideration of both workload and complexity. These tasks include tasks that are performed significantly differently from predecessor plants and tasks that use new automated support aids such as computer-based procedures.

The additional tasks selected by SMEs are those that are not already encompassed by previous HFE PEs and operating procedures.

The TA is based on generic assumptions that are made to establish a plant design that is reflected in the initial APR1400 HSI design. As site specific information is known, the generic assumptions are modified.

When the COL applicant performs the HFE activities, the site specific information such as the switchyard and ultimate heat sink is applied to develop the APR1400 HSI design at the site, and the TA is updated accordingly. The updated information is ultimately reflected in the complete APR1400 HSI design for verification and validation (V&V). The design implementation (DI) PE confirms the as-built design with the application of the site specific information.

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Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3

3. METHODOLOGY OVERVIEW TS TS Figure 3-1 Task Analysis Process KEPCO & KHNP 5

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 3.1. Basic Task Analysis TS 3.1.1. Task Narrative TS 3.1.2. Human-System Interface Inventory TS KEPCO & KHNP 6

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 3.1.3. Task Evaluation TS 3.2. Task Timing Analysis TS 3.2.1. Workload TS KEPCO & KHNP 7

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 3.2.2. Time Margin TS 3.3. Task Selection TS 3.4. Independent Review TS 3.5. Task Analysis Interfaces with Other HFE Program Elements TS 3.5.1. Operating Experience Review KEPCO & KHNP 8

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 3.5.2. Treatment of Important Human Actions TS 3.5.3. Functional Requirements Analysis and Function Allocation TS 3.5.4. Staffing and Qualifications TS 3.5.5. Human-System Interface Design TS 3.5.6. Procedure Development TS 3.5.7. Training Program Development KEPCO & KHNP 9

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 3.5.8. Human Factors Verification and Validation TS 3.6. Task Analysis Interface with the APR1400 Plant Design TS KEPCO & KHNP 10

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS

4. IMPLEMENTATION 4.1. Task Selection TS KEPCO & KHNP 11

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.1.1. Previous Human Factor Engineering Program Elements TS 4.1.1.1. Operating Experience Review TS 4.1.1.2. Treatment of Important Human Actions TS KEPCO & KHNP 12

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.1.1.3. Functional Requirements Analysis and Function Allocation TS 4.1.2. Plant Operating Procedures TS KEPCO & KHNP 13

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.1.3. Subject Matter Expert Experience TS KEPCO & KHNP 14

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.2. Basic Task Analysis TS 4.2.1. Task Narrative TS KEPCO & KHNP 15

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 16

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 17

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 18

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.2.2. Human-System Interface Inventory TS 4.2.2.1. Process Monitoring TS KEPCO & KHNP 19

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.2.2.2. Component Control TS KEPCO & KHNP 20

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 21

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.2.3. Task Evaluation TS KEPCO & KHNP 22

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3. Task Timing Analysis TS KEPCO & KHNP 23

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3.1. Workload TS KEPCO & KHNP 24

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3.1.1. Time Available TS 4.3.1.2. Time Engaged TS KEPCO & KHNP 25

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3.1.2.1. Task Initiation Time TS 4.3.1.2.2. Subtask Time TS KEPCO & KHNP 26

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 27

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3.1.2.3. Task Characterization Time TS KEPCO & KHNP 28

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3.1.2.4. Administrative Time TS 4.3.1.2.5. Critical Function Time TS KEPCO & KHNP 29

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 30

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS 4.3.2. Time Margin 4.3.3. Independent Review KEPCO & KHNP 31

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS KEPCO & KHNP 32

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 TS

5. IMPLEMENTATION TEAM Table 5-1 TA Implementation Summary TS KEPCO & KHNP 33

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3

6. RESULTS

SUMMARY

REPORT The results of the TA are documented in the ReSR, either directly or through reference to the TA database. This report demonstrates that the analysis of tasks for the plant operating crew was conducted in accordance with this IP.

The TA data are created and stored within a database to allow the information to be modified and updated. Existing portions of the analysis are updated to reflect any changes to the plant design to ensure internal consistency between the TA database and the APR1400 design. The TA database incorporates all event sequences and the related results from the analysis of the sequences.

In addition to referencing the TA database, the TA ReSR includes the following:

1. The TA results overview, which describes the principal findings of the HFE PE, including confirmation of IHAs and an overview of any HEDs
2. Each TA team members name, SME position filled, and the types of TA outputs generated by the team member (the outputs generated or reviewed by each member are documented in the TA database)
3. A summary tabular listing of all tasks for which a TTA was conducted, including the workload and time margin results
4. A detailed description of any resulting HEDs including conflicts between TA results and the results of previous HFE PEs or the APR1400 plant design, and HEDs that identify excessive workload or inadequate time margin
5. A conclusion that TA:
a. Has been conducted in accordance with the TA IP
b. Demonstrates that the tasks conducted by plant operators have been analyzed to establish HSI inventory requirements
c. Confirms that all analyzed tasks can be conducted with acceptable workload and time margin within the staffing design constraints (except as may be noted by HEDs)

The TA is a one-time, nonrecurring HFE PE whose closure is marked by issuance of the TA ReSR.

However, task analyses conducted within the TA are iterative in that HEDs generated by other HFE PEs are evaluated for any potential changes needed in those task analyses. Similarly, plant design changes are evaluated for their impact to the output of all HFE PEs, including the output of the TA; HEDs are generated as needed. Therefore, any task analysis changes that may be needed after completing the TA ReSR are managed through the HED resolution process. HEDs that affect TA outputs are resolved prior to completing the HD, which establishes the APR1400 HSI design for the V&V.

After completion of the V&V, site-specific changes, including any required TA output changes, are managed within the DI, which is a recurring PE for each plant. The DI also ensures that all HEDs are closed.

KEPCO & KHNP 34

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3

7. REFERENCES
1. APR1400-E-I-NR-14001-P, Human Factors Engineering Program Plan, Rev.3, KHNP, May 2018.
2. NUREG-0711, Human Factors Engineering Program Review Model, Rev. 3, U.S. Nuclear Regulatory Commission, November 2012.
3. NUREG-1122, "Knowledge and Abilities Catalog for Nuclear Power Plant Operators:

Pressurized Water Reactors," Rev. 2, Supp. 1, U.S. Nuclear Regulatory Commission, October 2007.

4. APR1400-E-I-NR-14011-P, APR1400 Basic Human-System Interface, Rev.3, KHNP, May 2018.

KEPCO & KHNP 35

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8. DEFINITIONS The terms in this section are used in this report and are defined to clarify their use.

Control action - Lowest decomposition of a success path within the FRA. Control actions are allocated to humans or machines in the FA.

Diagnosis - Examination and evaluation of data from the HSI to determine either the condition of the plant or the cause of the condition.

Human action - Manual response by a member of the plant operations crew.

Human-system interface - Alarms, indications, controls, and procedures used by the plant operations crew to monitor the plant, supervise automation, and execute HAs.

Local control station - HSI control device that is not located in the MCR or RSR. Local control stations include single-function panels (e.g., controls for a single breaker or valve) as well as multifunction panels (e.g., controls for a group of plant components).

Performance-shaping factor - Factor that influences human error probability, such as availability of procedural guidance or TmAv to perform an action.

Subject matter expert - Expert in a particular area or topic. SME minimum qualifications and typical contributions are defined in the HFEPP (Reference 1).

Task - Collection of activities with a common purpose, often occurring in temporal proximity, with identifiable start and end points. Control actions are defined and allocated to humans or machines in the FRA/FA PE. HAs are decomposed into tasks, which are analyzed in the TA PE.

Time available - Time period from the presentation of a cue for human action or equipment response to the time of adverse consequences if no action is taken.

Time required - Time it takes an operator to complete the action that prevents adverse consequences.

KEPCO & KHNP 36

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 APPENDIX A - NUREG-0711, REV. 3, REVIEW CRITERIA CONFORMANCE TABLE NUREG-0711, Rev. 3, Review Criteria IP Section and Paragraph 5.4 Review Criteria 2, paragraph 1, item 1 (1) The scope of the applicants task analysis should include:

  • All important HAs as determined by probabilistic and deterministic means (see Section 7, Treatment of Important Human Actions, of this report)
  • The applicant should select tasks for analysis that 2, paragraph 1, item 2 represent the full range of plant operating modes, including startup, normal operations, low-power and shutdown conditions, transient conditions, abnormal conditions, emergency conditions, and severe accident conditions. The chosen tasks should cover:

- tasks that were not identified as important HAs 2, paragraph 1, item 2 but have negative consequences if performed incorrectly

- tasks that are new compared to those in 2, paragraph 3 predecessor plants, such as ones related to new systems or procedures

- tasks that, while not new, are performed 2, paragraph 3 significantly differently from predecessor plants

- tasks related to monitoring of automated systems 2, paragraph 1, item 4; paragraph 3 that are important to plant safety, and the use of automated support aids for personnel, such as computer based procedures

- tasks anticipated to impose high demands on 2, paragraph 1 (encompassed by personnel, e.g., little time or high workload (such all tasks), paragraph 3 as administrative tasks that contribute to work load and challenge ability to monitor the plant)

- tasks important to plant safety that are undertaken 2, paragraph 2, item 1 during maintenance, tests, inspections, and surveillances

- tasks with potential concerns for personnel safety 2, paragraph 2, item 1 (such as maintenance tasks performed in the containment)

(2) The applicant should describe the screening 3.3 methodology used to select the tasks for analysis, based 4.1.1 on criteria specifically established to determine whether analyzing a particular task is necessary. 4.1.2 4.1.3 (3) The applicant should begin task analysis with detailed 3.1.1 narratives of what personnel have to do. The analysis 4.2.1 should be sufficiently detailed to define the alarms, information, controls, and task support needed to accomplish the task.

KEPCO & KHNP A1

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 NUREG-0711, Rev. 3, Review Criteria IP Section and Paragraph The detailed task descriptions should address (as 4.2.1, paragraph 3 items 1 to 28 applicable to the task) the topics listed in Table 5-1.

4.2.2 Alerts Information Decision-making

Response

Teamwork and Communications Workload Task Support Workplace Factors Situational and Performance Shaping Factors Hazard Identification (4) The applicant should identify the relationships 4.2.1, paragraph 3 items 12 and 20 among tasks.

Additional Information: For example, some tasks can be carried out in any order or in parallel, some tasks have to be performed in a linear sequence, while for others the relationship is conditional (if such a condition exists, perform task A). Some tasks may involve coordinated actions among crew members or control room crew members and local personnel.

(5) The applicant should estimate the time required to 4.2.3, item 6 perform each task.

4.3 (6) The applicant should identify the number of people 4.2.1, paragraph 3 Item 18 required to perform each task.

4.2.3, item 7 (7) The applicant should identify the knowledge and abilities 4.2.1, paragraph 3 Item 18 required to perform each task.

4.2.3, item 7 (8) The applicants task analysis should be iterative, and 6, paragraph 4 updated as the design is better defined.

(9) Applicants should provide an analyses of the feasibility 4.2.1, paragraph 3 items 6 and 17 and reliability for important HAs that address the 4.2.3, item 1 (plant analysis following:

references for IHAs are in TIHA

  • The analysis establishes the time available using an ReSR) analysis method and acceptance criteria consistent with the regulatory guidance associated with the actions. The basis for the time available is documented.

Additional information: The time available to perform the actions should be based on analysis of the plant response to the anticipated operational occurrence or accident. This analysis should reflect the guidance associated with the event.

  • The analysis of the time required is based on a 4.2.1, paragraph 3 item 12 and 17 documented sequence of operator actions (based on 4.2.3, item 4 task analysis, vendor-provided generic technical guidelines for emergency operating procedure 4.3.1.2.1 development, or plant-specific EOPs, depending on 4.3.1.2.2 the maturity of the design). 4.3.2 KEPCO & KHNP A2

Non-Proprietary Task Analysis Implementation Plan APR1400-E-I-NR-14004-NP, Rev.3 NUREG-0711, Rev. 3, Review Criteria IP Section and Paragraph

  • Techniques to minimize bias are used when 3.4 estimates of time required are derived using methods 4.3.3 that are dependent on expert judgment. Uncertainties in the analysis of time required are identified and assessed.
  • The sequence of actions uses only alarms, controls, 4.3, paragraph 1, last sentence and displays that would be available and operable during the assumed scenario(s).
  • The estimated time for operators to complete the 4.3.1.2.2, paragraphs 3 and 4 credited action is sufficient to allow successful execution of applicable steps in the EOPs.

Additional Information: Acceptable methods for deriving analysis time estimates for individual task components include, but are not limited to:

- Operator interviews and surveys

- Operating experience reviews

- Software models of human behavior, such as task network modeling

- Use of control/display mockups

- Expert panel elicitation (e. g., Kolaczkowski et al., 2007)

  • Staffing for analysis is justified, and if credited manual 4.3.1.2.2, paragraph 2, item 7 actions require additional operators beyond the assumed staffing, the justification for timely availability of the additional staffing is provided and the estimate of time required includes any time needed for calling in additional personnel.
  • The analysis of the action sequence is conducted at a 4.3.1.2.2, paragraph 2, items 5 and level of detail sufficient to identify individual task 6 components, including cognitive elements such as 4.3.1.2.3 diagnosis and selection of appropriate response.

Additional information: The documented sequence of operator 4.3.1.2.4 actions should be analyzed at a level of detail necessary to 4.3.1.2.5 identify critical elements of the actions and performance shaping factors (e.g., workload, time pressure) that affect time required and likelihood of successful completion of the action sequence. The applicant should establish time estimates for individual task components (e.g., acknowledging an alarm, selecting a procedure, verifying that a valve is open, starting a pump) and the basis for the estimates, through a method applicable to the HSI characteristics of digital computer-based I&C.

  • The analysis identifies a time margin to be added to 4.3.2 the time required and the basis for the adequacy of the margin.

(10) Additional Considerations for Reviewing the HFE Not applicable Aspects of Plant Modifications KEPCO & KHNP A3

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