Text

Control Room Design Review,Final Rept
	ML20092K946
Person / Time
Site:	Limerick
Issue date:	06/30/1984
From:	; PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	;
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TABLE OF CONTENTS Section Title Page INTRODUCTION 1-1

+ 1 METHODOLOGY l-4 1.1 Overview 1-4 1.2 BWROG Human Factors Design Review Summary 1-4 1.3 Limerick Supplemental Review / Assessment 1-5 and Implementation Phase 1.4 Management and Staffing 1-7 1.5 Documentation 1-8 1.5.1 Input Data 1-9 1.5.2 Output Data 1-10 1.6 Review Procedures 1-11 1.6.1 Supplemental Control Room Survey 1-11 1.6.2 Human Engineering Suitability 1-12 1.6.3 Operator Experience Review 1-14 1.6.4 Licensee Event Report Review 1-14 1.6.5 Assessment of HEDs 1-15 1.6.6 HED Verification 1-23 1.6.7 Final Validation 1-25 1.6.8 Task Analysis and Verification 1-25 2 GENERAL FINDINGS 2.1 Control Room Workspace 2-1 2.1.1 Multi-Unit Control Rooms 2-1 2.1.2 Workspace and Environment 2-5 2.1.2.1 Workspace 2-5 2.1.2.1.1 Sight Lines 2-5 2.1.2.1.2 Reach Distance 2-13 2.1.2.2 Environment 2-17 2.2 Panel Layout / Functional Relationships 2-18 2.3 Panel / Work Station Findings 2-20 2.3.1 Condensate, Feed, Turbine Console 2-22 (10C-651, 652, 653) and Vertical Boards (10C-668, 669, 670) 2.3.2 Reactor Control' Console (10C-603) 2-22 2.3.3 Vertical Boards (Behind 10C-603) 2-23 2.3.4 Reactor Cleanup and Recirculation 2-24 Console (10C-602) i L

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-Section Title Page 2.3'5

. Emergency Core Cooling Systems (ECCS) 2-25 (10C-601, 648, 647) 2.3.6 Electrical Bank Panels (10C-654, 00C-660, 2-25 ,

LAC , 1BC , ICC , 1DC-661) 2.3.7 Emergency Service Water and Off Gas 2-26 (10C-667, 10C-673) 2.4 Annunciators 2-27 2.5 Controls 2-29 l 2.6 Displays 2-30 2.7 Labels 2-30 2.8 Computer 2-30 2.9 Communications 2-31 !

3 IMPLEMENTATION 3-1

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3.1 Overall Panel Improvements 3-2 :

3.1.1 Control Panel Enhancements 3-2 ;

3.1.1.1 Color Use 3-3 3.1.1.2 Mimics 3-6 :

3.1.1.3 Panel Labeling 3-7 3.1.2 Enhancement Implementation 3-7 3.2 Component Improvements 3-10 i 3.2.1 Class Improvements 3-10 ;

3.2.1.1 Annunciator System 3-10 3.2.1.2 Controls 3-13 i 3.2.1.3 Displays 3-15 ii

O List of Illustrations ,

Figure Title Page 1-1 Human Engineering Discrepancy Assessment Form 1-13 1-2 HED Significance Checklist 1-17 1-3 HED Verification Form 1-24 2 Control Room Arrangement 2-2 2-2 Operator's Horizontal Line of Sight 2-7 2-3 Console Anthropometric Requirements 2-8 Console Display Face Angles 2-8 2-4 2-5 Vertical Anthropometric Board Requirements 2-10 2-6 Eye Height and Viewing Angles at Vertical Board 2-10 2-7 Viewing Distance to Back Panel Area 2-12 2-8 Console Dimensions 2-16 2-9 Consoles and Vertical Boards in Perspective 2-21 2-10 Location of Electrical Emergency Service Water 2-21 and Off Gas Back Panels 3-1 Before and After Control Panel Enhancements 3-9 3-2 Relationship of Annunciator Panels to 3-12 Operator Consoles 3-3 Matrix System of Alarm Window Identification 3-14 3-4 Reg. Guide 1.97 Instrument Identification 3-18 iii

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List of Tables Table Title Page 1-1 Determination of Safety Significance of a HED l-19 l-2 HED Priority Categories 1-21 1-3 HED Resolution Codes 1-22 2-1 Console and Vertical Panel Control Distances 2-15 2-2 Items Not Addressed by CRDR 2-1.7 2-3 Annunciator Alarm, Acknowledge, Reset Sequence 2-28 3-1 Limerick color Conventions 3-5 3-2 Limerick Pushbutton Color Codes 3-6 iv L

7 INTRODUCTION This document constitutes Philadelphia Electric Company's (PECo)

Detailed Control Room Design Review (DCRDR) Report for the Limerick Unit -l Nuclear Generating Station. In August, 1983, PECo submitted to the Nuclear Regulatory Commission the Detailed Control Room Design Review Program Plan for Philadelphia Electric Com pany's Limerick Plant. That plan described control room design review efforts that had formally commenced with the

-General Electric Boiling Water Reactor Owner's Group (BWROG) review. The Summary Report of that survey dated September 16, 1982, is included as Appendix B of this report. Incorporating these results and guidelines from NUREG 0700, the Program Plan discussed a schedule and methodology from which the subsequent review efforts were to proceed.

This report documents the results of the review effort to date and consists of three major sections: Methodology, General Findings, and Implementation.= The Methodology section includes these subsections.

e BWROG Human Factors Design Summary. This summary provides a synopsis of Owner's Group' survey efforts and identifies items to be included in the supplementary review, e Limerick. Supplemental Review / Assessment and Implementa-tion Phase. This subsection provides a synopsis and status of current survey efforts and also identifies those items that remain delayed due to construction.

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e Management and Staffing. Discussed in this subsection are any modifications in utility support members that have occurred since submittal of the Program Plan. l l

l e Documentation. Included here are changes that have i occurred since Program Plan submittal.

e Review Procedures. This subsection provides a synopsis of the procedures and methodology used in the design l review effort.

Section 2, General Findings, defines and discusses nine major categories. An overview discussion provides a perspective of the types of discrepancies identified.

Section 3, Implementation, discusses any modifications to the control room for improvement of the man-machine interface. Such !

modifications are the results of the review team's assessment of all Human Engineering Discrepancies (HEDs) (Appendix A).

SYNOPSIS OF FINDINGS The Detailed Control Room Design Review (DCRDR) , in addition to the previous BWROG Control Room Survey (CRS), identified Human Engineering Discrepancies (HEDs). Through a systematic disciplined assesssment and design improvement process (to be discussed in later sections) each HED was dispositioned. The assessment process dictated what needed changing and when to implement the changes. The majority of HEDs were determined to be 1-2

correctable through enhancements prior to fuel load. For those HEDs not corrected by fuel load, a safety significance analysis was conducted. This analysis is discussed in detail in Section 1.6.5. In summary, as a result of the CRDR findings, analysis and corrections scheduled prior to fuel load, it is felt that Limerick Unit 1 can be operated safely.

The following presents a synopsis of HED distribution:

1. TOTAL number of discrepancies identified 189

2. Number of HED Assessment sheets 163

3. Number of discrepancies corrected by Fuel' Load 88

4. Number of discrepancies assessed to be acceptable, corrected or no change required 61

5. Number of discrepancies scheduled for correction subsequent to Fuel Load 36

6. Held out for further review 4 TOTAL 189 1-3

Section 1 l METHODOLOGY i

1.1 OVERVIEW j The DCRDR was partially addressed by the BWROG's Control Room Survey (CRS) completed in February 1982. That program dealt only with the planning and review phases of the CRDR. The balance of l the CRDR was concluded by means of a Supplemental Control Room l

and Survey (SCRS), which completed open items from the CRS, addressed the assessment and implementation phase of the CRDR.

The supplemental survey incorporated the BWROG data and any items not included in that data. All phases of the surveys are discussed below.- More detailed information relative to the BWROG l survey is contained in the Program Plan Report of July 1983. In addition, Appendix B contains the BWROG Summary Report.

1.2 BWROG HUMAN FACTORS DESIGN REVIEW

SUMMARY

This review was performed by operations and engineerina personnel from four utilities, human factors consultants, and represen-tatives of General Electric. Efforts of this review, as well as i

CRS open items due to construction status, included:

e BWROG CRS - A panel by panel evaluation of the Limerick control room by operations,-engineering, and human factor personnel, addressing only the planning and review phases of the CRDR; the assessment, implementa tion , and reporting phases remained for completion in the supple-

. mental review.

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e BWROG Operator Experience Review - The survey team intervi 'ed eight operators of varying experience levels using questionnaires developed by the BWROG and follow-up interviews. LER's and scram reports (for Peach Bottom, since Limerick was under construction) for the two years preceeding the survey were also reviewed, o BWROG Task Analysis - Task analyses and walkthroughs of selected emergency EPG's were performed and evaluated against the Emergency Procedure Guidelines developed by the BWROG.

e Open Items for Supplemental Review - As the Limerick control room was under construction at the time of the BWROG survey, the following items were unable to be completed and were left for a supplemental review:

computers, procedures, control room environment, maintenance and surveillance, training and manning, evaluation of panel changes, and open checklist items.

1.3 LIMERICK SUPPLEMENTAL REVIEW / ASSESSMENT AND IMPLEMENTATION PHASE -

Those activities listed below were undertaken and completed after sub mi ttal of the Limerick Program Pl'an report.

e Transfer of Human Engineering Discrepancies (HEDs) generated in the original BWROG survey to HED Assessment forms. This activity was designed to provide a smooth 1-5 L

P' transition between the original BWROG survey and the supplemental review.

e Completion and update of CRS using BWROG checklists.

e Generation and documentation of HEDs using supplemental survey.

e Performance of human engineering suitability analysis, o Performance of a supplementary experience review LER analysis to update the original review.

e, Assessment of significance and prioritization of HEDs relative to safety significance.

e Construction of full-scale, Unit 1 and Comman Panel, plant specific mockup at the Limerick site.

e Design and implementation of panel enhancements on a ,

full-scale mockup.

e Development of proposed resolutions for HEDs determined to be significant and assigned a priority of 1, 2, or 3.

l e Performance of a verification of resolved HEDs to ensure l they adequately addressed the discrepancy and that they did not create another HED.

Due to the status of construction activities in the control room, i 1

portions of the survey in the following areas could not be 1-6

_ . . ~ _ - _ _ . _ . . - ._ . _ - . . - -

performed in detail. A schedule for completing these items has been included in the General Findings section of this report.

e Environment e Maintenance e Computers 1.4 MANAGEMENT AND STAFFING The- Program Plan discussed the multidisciplined review teams employed in the BWROG's survey and the subsequent supplemental review. In general, the teams functioned as presented in the Program Plan.

The core CRDR. team consisted of the following people:

T. Cabrey Nuclear

and IC Systems Engineer (Review Team Leader)

M. J. Leahy IC System, Instrumentation and Control Engineer J. Doering Operations Engineer (SRO)

R. Chidley Human Factors Consultant A.C. Macris Human Factors Consultant

T. Cabrey served for three years as a Shift Technical Advisor at Peach Bottom and was appropriately trained

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in nuclear engineering.

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This team was supplemented as required byt.

G. Edwards IC Systems Engineer, (Former Project Leader) Power Generation Engineer G. Madsen Asst. Operations Engineer (SRO)

E. Cosgrove Shift Superintendent (SRO)

W. Barnshaw Shift Superintendent (SRO) 1-7

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All oof the above were extensively involved in team deliberations and review of solution designs. Also, M. J. Leahy, Review Team leader for the CRDR at Peach Bottom, provided representation from that plant. Other engineering personnel were consulted by team members as required in relation to analyzing and resolving HEDs.

Although General Electric personnel were available, the team had no requirement.for their input. Resumes for members not included in the Program Plan are included in this report as Appendix C.

s The team met to develop criteria and establish procedures, and to review each phase of the supplementary review and design of proposed solutions. Leadership and guidance were provided by human factors consultants. The team was able to form a consensus in all deliberations after thorough- discussion and follow-up investigation as required. All team members had the right to formally register a dissenting opinion.

Possible solutions to HEDs were initially proposed by the human factors consultants. The team reviewed the possible solutions, considered other solutions, and assigned follow-up action.

Specific investigations of HEDs were performed by individual team members and by sub-teams. All work was presented to the team for discussion, review, revisions, and final approval.

1.5 DOCUMENTATION I

A significant number of reference documents were required to conduct the CRDR. For the purpose of consistency with NUREG 0700, those reference documents are referred to as Input Data.

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During the course of the total review process, documentation of i i

findings, analysis, and results were developed.

This documentation is referred to as Output Data. Both Input and '

Output Data are discussed below.

r 1.5.1 Input Data ;

The Limerick CRDR utili=ed the latest revision of the below listed materials as they existed between August 1983 and May 1984.

e System descriptions e Piping and instrumentation drawings f e Control-room floor plans e Panel arrangement drawings l e Panel mockup e Lists of acronyms and abbreviations used in the l control room o Plant design guide providing limited descriptions !

of coding conventions .

o Operator training materials e NUREG 0700 e BWROG CRDR Prograra Methodology e BWROG Human Factors Engineering Control Room Survey e BWROG lluman Factors Engineering Control Room -

Gurvey Supplement i i

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1 1.5.2 Output Data Output data is primarily comprised of the documentation generated '

as a result of the review process. The data forms are discussed in Section 1.6 with sample forms included therein.

e Human Engineering Discrepancy (HED) Assessment Form -

Figure 1-1 (form) and Appendix A (completed form) .

e HED Significance Checklists - Figure 1-2.

e HED Verification Forms - Figure 1-3.

e Supplementary operator experience questionnaire -

Appendix D.

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r 1.6 REVIEW PROCEDURES This section describes the procedural process used in the supplemental control room review and subsequent assessment and implementation phases of the program. This information is provided in sections as follows:

e Supplemental control room survey e Human engineering suitability verification e operator experience review e Control Room function validation 1.6.1 Supplemental Control Room Survey A supplomontal CHS was done using checklista developed by the BWROG in order to update and comploto the existing survey data generated during the initial CRS. The DWROG designed the chocklists, to incorporato critoria included in NUREG 0740.

Appondix C contains unadministered copion of initial and supplomontal survey checklints. The nurvey procosa is outlined belows e Panels installed aftor the nWROG nurvey woro ovaluated against both the initial and supplomontal OWROG checklists. The nWH00 chucklints woro unod to onnuro traceability and connintoney in the nuevoy procosa, e Panoin which had undergono donign changon ninco the initial nuevoy woro reviewod to datormino if tho changon affected any of tho initial HED ronuits.

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e All panels were evaluated using the supplemental checklists.

The !!EDs f rom the BWROG Cont.rol Room Survey were documented as a report that listed ilEDs in an abbreviated format. In order to provide accountability and format for managing each fled , the BWROG llED listings were converted to a llED Assessment form (Figure 1-1). In addition, all llEDs identified by the supplementary review were recorded on this form. This form was used to assign specific ilED numbers (cross-referenced to the BWROG report) , identify the criteria used and the source, and to further expand on the specific discrepancy. The development of the ilED Assessment Form was accompanied by an analysis of each BWROG 11E0 to ensure the nature of the discrepancy was understood.

The form also served to organize the overall process of assessment and resolution of IIEDs.

1.6.2 Iluman Engineering Suitability A thorough verification of human engineering suitability of the control room panels was performed as an independent review by human factors personnel who are niso qualified in nuclear operations. A top down analyais was conducted for all panels examining functional and spatial arrangement both within each panol and betwoon panels. The analysis used panel arrangement drawings, technical and training matorial, and instrumentation drawings.

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HED ASSESSMENT HED No.

EP =

TITLE:

COMMENT:

C Item: Ref.: Source:

IDENTIFICATION: Panel:

Component Name:

ID or Number:

DESCRIPTION:

MITIGATING CONSIDERATIONS:

9 POSSIBLE SOLUTIONS:

RESOLUTION: (Code) (Priority ) (Sched }

TRAINING REQUIREMENTS:

~~

PROCEDURE REQUIREMENTS:

Approval Signature Dates

( ) Additional page(s) attached Figure 1-1. Human Engineering Discrepancy Assessment Form 1-13

Items that were identified as not conforming to general human suitability guidelines were identified as discrepancies, transferred to HED assessment forms, and included in the assessment process.

1.6.3 Operator Experience Review ,

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A supplemental experience review was performed in a manner l similar to the BWROG methodology (discussed in the Program Plan) to update operator experience since the completion of the original CRS. Fifteen operators of various experience levels l 1

were given updated questionnaires (Appendix D). A summary of results of the. initial BWROG operator questionnaire is contained in Appendix B, BWROG's Summary Report, developed by human factors consultants for PECo. At the time of the writing of this report, analysis of the supplemental operator questionnaire results has not been completed. Upon completion, a summary of the findings will be included as an addendum to this document.

1.6.4 Licensee Event Report Review Plant specific LER data generated since the BWROG review of the Peach Bottom plant were reviewed for their applicability to the Limerick CRDR effort. Emphasis was placed on LERs resulting from plant procedural / operational deficiencies such as updates in plant technical specifications; inadequacies in operator training; and inadequate or improper instrumentation, such as a missing display or alarm. Of the 195 LERs reviewed, only 32 fell 1-14

into one or more of the above categories. The results of the LER review are included as Appendix E, Operator Experience Review, Licensee Event Report Summary.

1.6.5 Assessment of HEDs All HEDs were in'itially sorted into three categories:

e Those that can be resolved by enhancements.

e Those that form a class of problems that could be part of a common resolution.

e Those that must be considered individually because of their unique nature. ,

Enhancement design was commenced as the first step of the assessment phase. The CRDR team was first briefed on the human factors approach and methodology. Then the criteria for enhancements was discussed. Based upon the criteria, a proposed sample panel enhancement was developed by the consultants and reviewed by the team. Also, proposed terminology to be used on the control room panels was submitted for review. After a full team review of the proposed enhancements, an enhancement methodology was established. All panel enhancements and new label terminology was reviewed by the team and by additional operating personnel. Revisions were made as directed by the team, and the resulting enhancements were placed on tne full scale mockup.

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A large number of HEDs were corrected by the enhancement designs.

Because the enhancements will be completed prior to fuel load, it was not necessary to determine the priority of the HEDs resolved by enhancements. Other categories of HEDs that have been designated for completion prior to fuel load also were not assigned priorities.

HEDs not to be corrected prior to fuel load were subjected to an assessment of significance and safety implications, and were assigned a priority as defined in the Program Plan. A Significance Checklist was completed for each HED to be assessed (Figure 1-2). This form was completed by the assembled team, with each member discussing his perspective of the factors on the checklist. A consensus was recorded and a final significance was assigned. Checks were placed after those items the team agreed were significant. These were used to clarify and focus the discussion of significance, but were not weighted or added. The team then considered the EP (Evaluation Product) assigned by the BWROG checklist. All these factors were considered with respect to the specifics of the discrepancy under discussion. Finally, a consensus of significance, with respect to the probability of causing an operator error, was obtained and was recorded at the bottom of the form.

Having decided the significance, the team assessed the safety aspects of the discrepancy. The list of considerations is shown in Table 1-1. Based upon this guidance, the team reviewed the 1-16

f HED SIGNIFICANCE CHECKLIST I

HED NO.

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i A PHYSICAL PERFORMANCE

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1. Reduction of effectiveness of the operator's body and mind caused by: *

a. Undue fatigue: !

(1) Duration of operation 9 (2) Frequency of demands !

(3) Environmental conditions i

h. Discomfort ;

c. Injury

2. Restriction of the operator's ability to i perform: . I

a. Control suitability .

h. Availability [

f 82 SENSORY / PERCEPTUAL PERFORMANCE

1. Reducti n in visual sensings l

a. Visibility of instrument or information i

h. Readability of information

c. Visual distractions ,

2. Impairment of audio theeption: l

a. Audibility

h. Noise level i

3. Perception of information received visually or audibly:

a. Identification of information sought i

h. Understandable information i

_C. MENTAL PERFORMANCE L

1. The degree of stress: [

a. Rapidity of response required ;

l h. Severity of situation (emergency {

procedure) l

c. Accuracy of response required !

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2. The tendency to cause confusiont :

' a. Misleading information or arrangement !

h. Complexity l

Figure 1-2. HED Significance Checklist i I

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3. Mental workload: t

a. The degree of information collection requirements

b. Correlation of information

c. Mental manipulations

d. Evaluation and decision ,

4 4. Coordination control room; with others in or outside

a. Absence / remote location of 4 information or controls i

h. Delay of feedback information SIGNIFICANCE RATING: Indicate the overall probability of this !

discrepancy causing operator error. '

Highly Likely Possibly Not Likely !

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Figure 1-2. HED Significance Checklist (Continued) !

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TABLE l-1. DETERMINATION OF SAFETY SIGNIFICANCE OF A HED In determining the safety significance of a HED, the combined judgement of the team is needed in consideration of the specific condition caused by the HED or a combination of HEDs. The team members should consider the following ,

1. HEDS that cause errors on systems that directly effect safety such as:

a. Engineered safety features

b. Reactor coolant and protection systems

c. Containment isolation and control systems

d. Eniw a gency core cooling systems and their support systems

e. Auxiliary feed systems

f. Reactor control systems

g. Off gas isolation systems

2. The potential for violation of technical specifications.

3. HEDs that are known to have caused errors that will lead to unsafe operation.

4. HEDs that could cause the inadvertant activation or de-activation of a safety related system or a system needed to safely shut down the plant.

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i definitions of priority assignments. Those priorition woro defined in the Program Plan and are reprinted in Table 1-2. The priority definitions are related to NUREG 0801 categorios for cross-roforence. Finally the team decided upon the appropriato priority. The assigned priority was recorded in the llED j Assessment form in the resolution section. I l

As resolutions to llEDs wore cpproved by the team, the resolution was recorded on the llED Assosamont form. At that time, a follow-up action required for training or for proceduro modification wan considorod. Also, a tentativo schedule was datormined in broad terms based on the degroo of difficulty in correcting the llED and the assigned priority. Priority 1 IIEDs woro annignod a ochodulo for completion by Fuel Load. Priority 2 and 3 IIEDn woro assigned schedulos after Fuel Load. Priority 4 IIEDs woro assigned longor term schedulos or woro listed as not to be accomptinhed.

In addition, each IIED was assigned a Honolution codo. The codo was designed to identify tho type of solution that in to ho implemontod (Tablo 1-3). The codo annignmont norved to clarify the methodn and degroo to which the llED will be runolved. Whoro the human tactorn critoria will not be mot with the runolution, an appropriate discunnion in included.

The Program Plan had a noparato dincunnion of procedural llEDs developod by the UWH00. In practico it was found nimplor to combine all llEDs and doal with thom at tho namo timo. Tho ontry 1-20

TABLE 1-2. HED PRIORITY CATEGORIES e Priority 1 (High Safety Significance)

HEDs that are documented or judged likely to adversely affect the management of emergency conditions by the control room operators. This priority includes all HEDs that have high safety significance that could result in ,

unsafe operation, any that have resulted in unsafe opera-tion, as well as any that could result in errors of serious consequences. (9801 Cat.!A,8,C, Cat. IIA, Cat.III.)

e Priority 2 1kow safety Significance)

HEDs that have caused problems or appear likely to cause problems during normal and off-normal operations that could not result in unsafe operations. (9891 Cat.!D, Cat.!!B,C.)

o Priority 3 10cerational Rollability)

HEDs that are not safety significant but could degrade operational efficiency and relishility, either singularly or in combination with other HEDs. This priority includes HEDs that are individually of minor consequence, but in combination with other HEDs or other conditions could degrade operator effectiveness under stress.

Priority i _(No Significant Improvement)

HEDs j udged by the review team to have no significant effect on operations and are not documented as causing problem during operation. This priority includes all HEDs that do not fit into any of the above categories.

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i TABLE l-3. HED RESOLUTION CODES Code Description A Meets Human Factors Engineering (HFE) guidelines originally or as improved.

B Minor deviation, but satisfies the underlying performance principle implied by HFE guidelines.

C Meets HFE guidelines through a combination of solutions.

D Meets HFE guidelines through other means that are judged to satisfy the intent of the guidelines.

E Does not meet HFE guidelines; a correction may increase potential for error.

F Solutions do not meet all guidelines, but are judged to be acceptable for safe operation for

( the. reason stated.

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. i* ,

A Y 4 O Rs 1-22

on the HE3 Assessment sheet " Procedure Requirements" was used to spell out any specific procedural changes required. All BWROG HEDs were thus dealt with as a single group.

1.6.6 HED Verification The HED Verification form included in the Program Plan and reprinted as Figure 1-3 was used by the team to review all resolved HEDs. Using this form, the team concentrated upon the adequacy of the resolution recorded on the HED Assessment form.

This review ensured that the original discrepancy was addressed,

- that the resolution considered human factors as well as engineering- design, and that safety was carefully considered.

- Finally, it considered whether the resolution adequately solved the problem and whether that resolution might cause another problem either singly or'in combination with another resolution.

The team used the enhancement designs and the HED Assessment forms as tools to determine. relationships between HEDs. The integrated nature of- the redesign assured that correlations between' HEDs were identified. Each resolution was relatively-straightforward _ and its -impact could be clearly assessed. The assessment methodology addressed like discrepancies as a group, so that class solutions could be designed. In this way, inter-relationships were considered from the very beginning. This made the verification relatively simple and ef fective. Our plan to cross reference- HEDs by computer matching was therefore deemed unnecessary, and the data base for such an effort was not developed.

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HED VERIFICATION {

l HED No(s) i i

Approved Ccce l VERIFICATION STATUS:

Safoty prTori ty Unitt 11 12 i i

Applicable !

Schedule !

ilESOLUTION ANALYSIS SAT / REV !

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1. Codo correct? yes / no Should be __

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2. Addresses discrepancy identified by code? !

f i

3. Meets human factors requirements?

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4. Safety considerations:

a. Safety questions not addressed? l

b. Cause temporary reduction in safety?

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c. Increase risk og f. allure or misoperation?

?

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5. Compounding effects !

a. Causes another discrepancy? j

b. Adversely combines with other resolutions? l 1

6 cause negative retraining?

SCHEDULING !

1. Circle applicablo unit: Unit 11 Unit 12 3 i

2. Assigned priority: :

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3. Schedule Prior to first fuel load !

First refueling outage Second refueling outage i Not implemented Team lluview Action:

Figure 1-3. HED Verification Form ,

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1.6.7 Final Validation ,

1 A validation of control room function is planned prior to fuel load to determine whether the operating crew can effectively accomplish their tasks using the improved control room panels.

Validation will emphasize the ability of the crew to ascertain and i evaluate plant status, and to diagnose transients using emergency operating procedures. These will be performed as walkthroughs on the mockup as reconfigured with design improvements. The results of this final validation will be reported in an addendum to this report.

1.6.8 Task Analysis and Verification A detailed Task Analysis of the Limerick unique emergency operating procedures was performed by the operations department at Limerick, as reported in the Program Plan. This undocumented Task Analysis verified that the Emergency Operating Procedures could be implemented from the control room. At the May 4, 1984 meeting between the BWROG CRDR Subcommittee and the NRC Human Factors Safety Division we were informed that a formally documented task analysis is required. Accordingly, Limerick will, in conjunction with Peach Bottom, perform a follow-up Task Analysis on the Emergency Operating Procedures to meet the requirements defined by the NRC. Due to the late identification of this additional work item, the task analysis has not yet been performed. A properly documented task analysis will be completed prior to Limerick's first refueling outage. The team considers 1-25

this an acceptable approach in light of the original EOP task l l

analysis. The follow-up task analysis will use a team approach ,

t and will identify each task along with the requirements and ,

L characteristics of instruments and controls that are necessary !

to complete the task. Then the existing control room instruments I t

will be compared to the requirements and characteristics and the f overall suitability will be assessed. ;

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Section 2 GENERAL FINDINGS This section highlights the findings obtained from the DCRDR, and is divided into categories that generally follow the human engineering guideline categories contained in NUREG 0700, Section 6. The categories covered include:

=====================================================

VERTICAL PANEL CONTROL HEIGHT (in inches)

VERTICAL PANELS PANEL LOW HIGH 100-624 34.8 72.1 10C-668 23.7 70.5 10C-669 34.4 79.0 10C-670 26.5 69.8 10C-614 27.4 65.8 (Recorder) 10C-607 17.4 57.9 10C-610 N/A N/A (CRD Scram Test Points) 10C-600 29.7 58.3 00C-660 42.1 59.8 10C-654 29.3 71.7 10C-656 N/A N/A (Plant Watt Hour Metering) 10C-671 N/A N/A (Plant Watt Hour Metering) 10C-661 31.1 66.4 10C-647 25.2 67.6 10C-648 25.1 51.2 10C-626 32.3 79.3 10C-601 16.0 67.5 10C-649 N/A N/A (Full Core Status Display)

Remote Shutdown 6.3 80.0 (10C-201) 2-15 e w

i PANEL DIMENSIONS VERTICAL PANELS

42.a" ,

A( 2.0"

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a 120.0" 120.0" 14 0" 9F i 94 3" 54 C" G I, ,s, ,, ,, 1 F, ,

as.0" 4 y as.o" CONSOLES 25.

30 t

59.0a i 45.0" 28.0

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i. 68.0" t

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Figure 2-8. Console Dimensions 2-16 J

2.1.2.2 Environment. These areas can not be evaluated completely until control room construction is completed. A list of items not addressed by the CRDR is presented in Table 2-2. A complete evaluation of workspace arrangement, environment, sound and lighting levels will be completed when appropriate.

TABLE 2-2. ITEMS NOT ADDRESSED BY CRDR Due to the construction status of the control room, the evalu-ation does not address the following:

e Illumination

- Control room ambience

- Component illumination

- Reflectance factors e Atmosphere

- Heating

- Ventilating

- Air conditioning e Noise

- Annoyance factors

- Masking of verbal communications

- Masking of auditory signals e Verbal communications

- Communications systems

- Implementation of systems e Emergency equipment

- Special hardware

- Protective clothing e Portable furnishings - desks, chairs, tables, etc.

e Computers 2-17 c s

l 2.2 ~ PANEL LAYOUT / FUNCTIONAL RELATIONSHIPS In addition to the control room survey, which constitutes a component by component analysis, a top-down analysis was ;

conducted as described in the Program Plan. This analysis ~ -

concentrated on groupings and relationships. This section ;

discusses overall functional relationships between control !

panels, and the integral nature of operations.

The design of the control room for Unit 1 features three consoles arranged -in a curved shape, with vertical boards behind them ,

(facing the operator) ( Figure 2-1). Access to the vertical boards is provided at the ends of each console. All consoles are designed for a standing operator. Overall, this is a good arrangement for a control room because it results in a relatively compact set of controls and instrumentation with good visibility to most of the panels.

The potential problem with visibility of the lower portion of the vertical boards behind the consoles by the operator standing at a normal work station in front of the console was discussed previously in 2.1.2 Workspace and Environment (see Figure 2-7) .

The central 10C-603 console is intended as the primary operating station for the plant. It contains the reactor controls and indicators, some feedwater controls, and emergency reactivity controls. Immediately adjacent to 10C-603 is 10C-602, which contains the Recirculation Systems. Further to the tight on 10C-602 are the controls for Primary Support Systems. The 2-18 a

furthest left console 10C-651/652/653 is for feedwater , conden-sate, and' turbine controls and indicators respectively.

Additional controls for this system are on the vertical boards behind.

The overall arrangement of the consoles was found to provide good concentration of frequently used controls at the prime operating station, requiring a minimum of operator movement. There were no l- instances of controls belonging on the front panels being found on vertical boards.

, Control. of electrical systems is contained on back panels that are directly behind the operator *.: hen standing at the consoles.

Organizationally, these panels are assigned'to the Chief Operator who faces them when seated at a desk.

The overall control room and individual panel arrangement ~ is i

logical, with instruments and controls grouped by functions.

. Ho weve r , functional groupings of ' components were generally not visually differentiated making it difficult to identify groups.

~

The ability to correlate meters and recorders to the associated groups .of -controls was difficult in some systems, even though there was generally a conscious effort to align indicators with j

i- : controls. This situation was caused primarily by the need to add many components subsequent to the original design.

L Mimics- were used only for-the ECCS-and Containment Isolation Systems on 10C-601, 10C-648, and 10C-647, and for the Electrical l-i

.and Of f - Gas Systems on the back panels. Generally, the mimics i

2-19 N w

were- found to be congested and too complex to be helpful to the

-operator. Mimics, although not present on the consoles, would aid operators in.following the sequence of control operation.

Little color was used on the boards therefore color confusion was minimal. A code for types of handles to be used on control-switshes was established prior to panel design, but has been applied inconsistently. The variety of handles used resulted in some being rather large, thereby tending to obstruct the view of labels and legends for that control on the console benchboard sections.

2.3 PANEL / WORK STATION FINDINGS This section summarizes in general terms, the findings of the top-down analysis with respect to consoles or combined work stations. The details are documented on individual HED Assessment sheets (see Appendix A). Figure 2-9 illustrates the consoles and vertical boards in perspective to aid in orienting

.the reader. Figure 2-10 illustrates the location of Electrical, Emergency Service Water and Off-Gas back panels that are discussed separately.

2-20

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= == = === = c= = .-

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Figure 2-10. Location of Electrical Emergency Service Water and Off Gas Panels f

2.3.1 Condensate, Feedwater , Turbine Console (10C-651, 652, 653) and Vertical Board (10C-668, 669, 670)

The console benchboard section contains controls, with indicators The

~

and recorders on the upright section. controls are grouped t by systems, and are separated by demarcation lines. Sequential relationships and flows within and between condensate and feedwater, or steam are not evident nor supported by mimics. The feedwater and condensate groups are separated by other unrelated groupings.

The indicators on the upright are generally arranged over the controls to which they relate. The condensate indicators, however, are distributed across the upright and become intermixed with the feedwater indicators.

The respective vertical boards (10C-668, 669, 670) provide a good complement to the console controls and indicators. The primary finding was that the many rows of like switches were somewhat misleading. This was due primarily to the intermixing of controls for different operations and that the control functions appeared difficult to understand.

The Turbine Test and EHC controls use a standard General Electric layout and are well grouped.

2.3.2 Reactor Control Console (10C-603)

The Reactor Control Console is the center console and primary operator station for plant operation. The below discussion starts at the left of the console across to the right.

2-22 L

h r

The left side contains the feedwater controls and indications.

The indications on the upright are located over their related controls.

t The center contains the rod drive controls with a core map ,

pushbutton selector, for individual rod controls. This arrange-c ment is adequate. On each side of the rod drive control are the i

nuclear indicators and controls. Indicators here are generally located above their associated controls. The labeling and use of acronyms could be confusing. No demarcation lines aid in differ-entiating the various functions related to monitoring power l level. !

t The right side is arranged by functional groups with demarcation , [

lines. However, because of a change to the board, an important indication of the Standby Liquid Control System is located with l the Control Rod Drive indications, j 2.3.3 Vertical Boards (Behind 10C-603) 1 The vertical board directly facing 10C-603 is the Rod Status Display. It contains numerous indications for each rod displayed as in the actual core. The ability to distinguish between these indications can be difficult.

! Other vertical boards on either side of the Rod Status Display, facing 10C-603, contain various test panels and radiation monitoring instruments. To the left, 10C-610, 614 and 607 are easily distinguished but lacking in operational identification.

l l

! To the right, 10C-600 and 626 contain Hydrogen and Oxygen

! 2-23 .

i Containment Analyzer, Process Radiation Monitors, and Main Steam ' '

\

Isolation _ Valve Leakage Control System (MSIV-LCS)- and the Automatic Depressurization System (ADS). On 10C-626 these two

' systems (M9h-LCS& ADS) are also grouped but not' differentiated, so that the various function':2 ar.e not' easily distinguished. In

~., y, additionN the Reactor Protection Systiem Status Panel is placed 3

with -the ,;

Leak . Detection System and" is not visibly separated or V ,s. i clearly id~enti fied as b'eing di f ferent'. ~

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2.3.4 Reactor Cleanup and Recirculation Console (10C-602)

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This console cpntains primary and balance of plant auxiliaries.

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.The left side.Q adjacent* to-10C-603, contains the controls and

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indication for the Recirculation System, an important means of '-

controlling reactivity in -the rdactor. Next is the Cleanup '

- \,

System, and then the drywell drains. These groupings, 'are separated by demarcation lines, but in two instances -

indicators belonging to one group are located in the next. grouping. The Cleanup Sy; tem indicators on the upright do not correspond '--

to the controlss below them. In addi'tio72, control 'arr'angemede is not

.s- .. . t ideal for the sequence of system op61s, tion. ~

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The right side contains Balande of Plant Systems.\ They are arranged by functions with indicators directly,over the controls, P

and divided by demarcation lines'. The controls for drywell

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cooler fans, due to separation criteria, do not follow a standard '

i 1 , . -

3 alphabetical ' order to 1 separation.

l but are logical with+ respect

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divisions. The . ndicators i

\

above them are^hrranged .

in alphabetica'l ' <

! order from left to'!righ,t. .

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si-24 l

L

i 2.3.5 Emergency Core Cooling Systems (ECCS) (10C-601, 648, 647)

These . vertical boards contain the ECCS and the Containment Isolation System. Unlike the consoles and vertical boards discussed thus far, these boards contain extensive mimicking.

The fundamental purpose of mimics is to aid operators using complex systems. In this situation, due to component arrangement and density, the mimics tend to be congested without obvious flow paths. Above the mimicked portion are additional controls and indicators. These controls are generally not optimally grouped and difficult to identify. The indicators above are grouped appropriately, but due to their continuity the groupings are not always discernable.

2.3.6 Electrical Back Panels (10C-654, 00C-660, LAC , 1BC , ICC ,

1DC-661)

The. electrical panels use mimics to relate the controls to the system. Generally, the mimics are well arranged. The relationship of the diesel supply panels to the startup panel, and the main generator section to the startup panel is not obvious. The mimics for the auxiliary busses tend to become confusing and the relationship between the auxiliary busses for Units 1 and 2 is not clear. The loads for the main load centers represented by breakers on the panel are not listed in sufficient detail to aid the operator in identifying the major . equipment that is powered.

2-25 L __ .-

2.3.7 Emergency Service Water and Off Gas (10C-667, 10C-673)

The Emergency Service- Water.(ESW) panel is divided into four distinct- trains of emergency service water. All trains are identical in arrangement. Within a train, controls are grouped but the groups are not distinguished. They are all together in a bank of 29 controls for each loop,- making them difficult to differentiate and identify.

The Off Gas System is arranged as a mimic. This board has employed adequate space for the mimic and is easily followed.

The mimic is more' complicated than it need be. As a result, the main- flow' path of the gaseous rad waste is difficult to- follow, and subsystems are not set off for easy differentiation.

2-26

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V 2.4 ANNUNCIATORS There are approximately 1100 annunciator alarms for Unit 1.

These are located around the periphery of the control room on the slant portion of the vertical boards. They are divided into annunciator window arrays of less than 50 ala rms each. Each annunciator panel has alarms well grouped by functions and the groups within an array generally relate to the same control panel. Ho weve r , because of the large number of alarms and the limited space available for annunciator mounting, it- has not always been possible to mount the alarms directly over the panel to which - they relate . The arrangement of censoles in front of I

vertical boards means that the annunciator related to the console

'must vie with the annunciator related to the vertical board for

the primeLspace directly in front of or over both. This means that there is no way to rearrange panels without massive elimination of alarms.

The annunciator. panels, however, are arranged logically with respect to the main operator station located in front of 10C-603.

Because this is the prime operating station, the annunciator panels have been arranged sequentially in the same order as the consoles, thus giving the same sense of order to the central operator. The annunciators are not identified by system names, nor are they _ highlighted in any way that makes their order clear. .The numbering system used for panels is used for annunciators by changing the first digit from a 6 to an 8 (e.g . , panel 668 has annunciator 868 associated with it) .

I 2-27

(

Within an annunciator array, the alarms are usually grouped by systems, but these groupings are not readily identifiable.

Consequently it will be more difficult for the operator to remain oriented when a large number of alarms are energized.

~The annunciator alarm, acknowledge, reset sequence is as illustrated in Table 2-3.

TABLE 2-3. ANNUNCIATOR ALARM, ACKNOWLEDGE, RESET SEQUENCE s

CONDITION WINDOW STATE AUDIBLE SIGNAL NORMAL NON ILLUMINATED SILENT ALARM FLASHING BELL ,

ACKNOWLEDGED ILLUMINATED STEADY SILENT ALARM CLEAR ILLUMINATED STEADY SILENT (Manual Mode)

OFF (Auto Mode)

RESET OFF SILENT TEST FLASHING BELL Lince the windows flash only for the initial unacknowledged alarm and do not reflash when an alarm condition clears, the operator must' determine on his own that the alarm has cleared. This means the steady light either goes out automatically, or goes out upon pressing the reset button. An internal selector switch behind each window controls the method of reset. This approach is based upon an operating philosophy that requires aggressive operator follow-up on alarms. For the main operating area of the three consoles and associated vertical panels, there is a master 2-28

acknowledge pushbutton at the normal operator station in front of the center console. In addition, there are acknowledge push-buttons on each of the wing consoles that control alarms related to these consoles-only. There are separate acknowledge push-buttons on the electrical back panels. There are no silence controls.

P The audio alarms are bells. The environmental survey has not yet been made so the actual alarm level has not been measured.

Some prioritization has been used on annunciators. This consists of the use of red lights for top priority alarms, amber for intermediate priority, and white for low priority. However, only eight of thirty-two annunciator panels have this type of prioritization. In addition, the method-used is not completely effective because it is difficult to distinguish between the amber and white windows. The panels mix high priority alarms l with informational alarms. Some panels position higher priority i alarms along the top row of the matrix, but this practice is not fully implemented . The same audio alarm is issued for all priorities.

2.5 CONTROLS The controls and controllers generally meet human factors standards. There are no major problems with controls, but are minor human compatibility problems with Bailey controllers.

There are some problems of inconsistent handle shapes and colors L

used for round pushbuttons.

2-29

2.6 DISPLAYS Visual displays are primarily of two types: vertical analog indicators, and chart recorders. These instruments generally meet human factors standards. With a few exceptions, the scales used on indicators are properly designed, but have not been enhanced to indicate operating zones, limits, or set points.

Controller displays are properly designed from a display face perspective, and aside from the counter rotation of the indicating drum are reasonably easy to use.

2.7 LABELS A hierarchal labeling scheme has not been used on panels. Dymo labels indicating power supply sources have been added under controls -and tend to add to the overall congestion on the consoles. Labels were also found to be inconsistent in terminology and use of abbreviations.

2.8 COMPUTERS Two computer systems will be in use, the process computer, and the Emergency Response Facility Display System (ERFDS). The presently installed process computer system provides simple alarm list displays. This display, in many cases, gives backup detail on alarms indicated on the aununciator. The second computer system, the ERFDS, will provide the SPDS capability. At present the system software has not been fully developed, and final evaluation of the system has not been completed. This computer system will be reviewed when available.

2-30

r

'2.9 COMMUNICATIONS.' -

-The state of construction of the control room and plant precluded adequate. review' of the connunications system. This system will be reviewed and assessed when available.

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9 2-31

m section 3 IMPLEMENTATION This section discusses, in general terms, the design approach for implementing control room modifications to improve the man-machine interface. The modifications are based on the CRDR team's assessment of the HEDs. 'If taken on the individual basis.,

it is difficult to ascertain that any one discrepancy would have a significant~ safety impact. Ho weve r , a combination of discrepancies.can have greater significance. The intent of the team was to resolve as many discrepancies as possible.

This.section is comprised of two subsections:

e Overall Panel Improvements e Component-Improvements These discussions are referenced in specific HED Assessment sheets along with rpecific resolutions as appropriate.

3-1

3.1 OVERALL PANEL IMPROVEMENTS This section discusses those panel improvements to be implemented on the Unit 1 control room panels and the Remote Shutdown panel.

3.1.1 Control Panel Enhancements The analysis of HEDs resulting from the control room survey indicated that the majority of discrepancies were in the area of functional grouping, mimicking, and labeling of components, which could be corrected with control panel enhancements. To ensure that the overall panel enhancements would be designed for improved operator performance, some fundamental decisions were reached initially. First, it was decided to establish an accepted operational description of the plant. A large simplified plant systems schematic was used in describing plant systems and components, and was used continually during enhancement design and review team discussions to ensure complete team agreement and understanding- of system terminology and system boundaries. The second decision was to determine who in the operational population (level of expertise) the enhancements would be designed to support. The final choice was the newly licensed auxiliary control operator, as he would have had the least operating experience on the panels. With agreement on these two basic issues, a general philosophy of enhancements was agreed ,

upon. Enhancements would:

e Show functional grouping of components e Utilize mimics where they provide useful information to the operator 3-2 L

m e- Employ ' hierarchal labeling e Meet accepted human engineering practice With the above criteria as " ground rules," the review team proceeded to evaluate various control panel enhancement techniques. It became quickly evident that the criteria could not be. met if all components were to remain in existing locations. As a result, to make the groupings and overall enhancement scheme effective several component relocations have been specified. The decision on relocating components would be based on:

e Maintaining functional group relationships e Providing aid in mimicking e Providing correct sequence of operations 3.1.1.1 color Use. When developing the criteria for color coding, some constraints had to be considered. These constraints were: the absolute limit of the numbers of colors; the maintenance of accepted industry color conventions; and the availability of CRT color graphics.

The criteria for color coding when used as a memory aid was as follows:

e other cues that specify meaning, will be associated with colors so that color need not be completely definitive.

This means more specific identification will be used. As an e xample , the shape of the grouping and the grouping labels will provide cues, in addition to color, to aid in identification of functions.

3-3

e Colors will be chosen such that they imply meaning. For example : red = hot; blue = cooler; magenta = radio-active. But these will not be definitive. Where physical separation and functional differences exist, the same color may have a different meaning, provided no confusion will result. Examples might be: red = steam on the secondary panel; red = high voltage bus on the electrical panel, e only defined color codes apply to controller-indicator lights.- The Limerick plant convention (which agrees with industry standard) is shown as Table 3-1.

3-4 L

m TABLE 3-1. LIMERICK COLOR CONVENTIONS LENS COLOR SIGNIFICANCE APPLICATIONS RED. OPERATING a. Motor running

b. Circuit breaker closed with Trip circuit intact

c. Valve not fully closed GREEN NOT a. Motor not running OPERATING b. Circuit breaker open

c. Valve not fully open MILKY NORMAL a. System in a normal or steady WHITE state mode of operation

b. System in " Automatic" control mode YELLOW NOT NORMAL a. Alarm condition (AMBER) WARNING b. System in other than normal TAKE NOTE or steady state mode

c. System under test CLEAR POTENTIAL a. Circuit energized and/or in.

EXISTS service

b. AC or DC potential monitor Sync. lamps - Bus pilots -

Relay circuit d.c. monitor

c. Contactor energized BLUE MISC. a. System in " Manual" control mode (Will be accompanied with an alarm or yellow indicating light if operator should be alerted that system is not in a normal control mode)

b. "Off" if an off condition must be indicated with a lamp 3-5 e

e Pushbuttons throughout the control room will be colored using the color codes shown in Table 3-2.

TABLE 3-2. LIMERICK PUSHBUTTON COLOR CODES FUNCTION COLOR

'l . Emergency Trip, RED ;

Emergency Actuation

2. Reset WHITE

3. Acknowledge Alarm, YELLOW Bypass

4. Stop, Shut (not emergency) GREEN ,

5. Test BL AC K ,

3.1.1.2 Mimics. Mimics have been simplified and straightened.

By straightening mimic lines and providing color highlighting, the flow direction of mimic lines is made more obvious, requiring i fewer arrows. Extraneous mimics have been eliminated. Some controls will be removed from control room panel mimics in order to allow more effective continuity in mimic flow..

Enhancements have emphecized operation under emergency conditions but are equally applicable to normal operations.

Controls and indications of major importance have been highlighted with color backgrounds and larger mimic lines, while those relating to routine tests under deliberate and controlled conditions have ;

i been- de-emphasized by using smaller lines or eliminating mimics altogether. Designs of enhancement shapes as well as color ,

shading have been used to suggest relationships with other functional groups. L i 3-6 k'

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3.1.1.3 Panel Labeling. In conjunction with the effort to enhance the control panels, a hierarchal labeling concept war, implemented to improve the readability of labels. Prior to determining the specific label ~ contents for individual components , list of standardized terminology and abbreviations was developed for.use in selecting label content. Additionally, a label font specification was developed (Appendix G).

3.1.2 Enhancement Implementation Following the selection of the enhancement technique to be used, enhancements were designed for each console, vertical boards and back panels as listed in Section 2. The enhancements as approved were implemented on the full-scale mockup of the Unit 1 control room. Operational personnel and management were involved in reviewing and commenting on enhancements as implemented.

When the mockup is completely enhanced, a formalized validation will be. conducted as part of the Validation of Control Room Functions described in Section 1.4.6 of this report. Subsequent to the validation, any identified problems will be resolved using the mockup.

The final aspect will be to formally document the enhancements.

This is being accomplished by generating a complete set of drawings specifying functional grouping shapes, associated

, colors, demarcation lines, mimics, and labels. These drawings 3-7

I t- l provide the basis from which panel enhancements will be (

implemented on the actual control room panels.

i i

Examples of control panel enhancements to be implemented are shown in Figure 3-1. This figure shows before and after enhance-ment photographs of various control panels as implemented on the control room mockup. It is considered that these enhancements fully correct the problems of grouping and demarcation. Some changes in component locations are specified for the final enhancements. Where these changes will be accomplished after fuel load, Jan interim enhancement design has been completed and will adequately serve until the final configuration can be obtained.

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3.2 COM PON ENT IMPROVEMENTS j As indicated previously, enhancement techniques will correct many panel discrepancies. In addition to enhancements, other approaches to solving discrepancies are necessary. Generally, there are two approaches:

o Class Improvements - A combination of minor changes to l a particular type of control or indicator that will correct a whola class of problems.

e Individual Discrepancy Corrections -A solutn or combination of solutions that will correct one particular discrepancy.

Specific component improvements are discussed below.

3.2.1 Class Improvements 3.2.1.1 Annunciator System.

Annunciator Panels: The placement of annunciators around the perimeter of the control room has resulted in having some annunciators not located over the associated panel, or in front of the associated consolo. Investigation of this prohlom revealed that the arrangement of the annunciator panels is Icgical within the spaco allowed for their placement. Thoro is no way to change the location of thoso panels in ordor to obtain a botter arrangement wi t.hou t a wholosato dolution of alarms.

3-10

l Figure 3-2 shows the relationship of annunciators to the primary operating station at the center console. With respect to this location, the arrangement can be easily associated with the appropriate console.

e. l The association of annunciator, panels is difficult now l l

because they are not named. Only a numerical unit !

l designation is used. Each annunciator will be given a functional name that directly associates it with the appropriate console or vertical board (Figure 2-9 and 2-10).

Each console and vertical board will be given similar names to complete the identification and association. In addition j demarcation lines will be placed between the annunciator panels at appropriate locations in order to group them by overall functional associations. Each annunciator panel will be given an operating number (as opposed to the panel identification number, e.g., 10C-893) in numerical sequence I beginning with "191". The one hundred series (161) will be for Unit 1, the two hundred series (201) for Unit 2 and 991 series for common panels. This number will be used ,

I in operating procedures.

Initially some annunciator panels have prioritized windows, 1

using red and amber hulbs. Prioritization by location (high on array infers high priority) is not necessarily the case.

To systematically prioritize annunciator panels, operating l experience with the plant vatems is necessary. As a result, i l

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r the overall prioritization is scheduled for completion by the second refueling outage. In general, both color and location prioritization techniques will be employed.

A matrix system of identifying alarm windows will be used. This system will use alphanumerics around the periphery of each array of windows (Figure 3-3).

Alarm Sequencing and Control: Annunciator operational sequences are presented in Table 2-3, Section 2. Two major l

improvements are planned. One is to selectively determine which alarms are to automatically clear and which require manual reset.

The other is to install a tone-down system to reduce noise level of all control room annunciators. The existing annunciator l controls will be modified such that the Acknow?'dge Button will be a yellow palm-actuated pushbutton, the Reset will be black and unguarded, the Test will be black and guarded to prevent inadvertent actuation.

)

3.2.1.2 Controls. !

Pushbuttons: Circular pushbuttons throughout the control room did not have consistent color coding. All buttons will i be colored in accordance with the color code shown in Table 3-2.

l Controllers: The concern was the counter-rotating i drum of the Bailey controllers. To aid operators these l

controllers will be improved by adding an arrow adjacent to the thumbwheel indicating the direction of rotation to 3-13

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1 I Added aluminum strl for hierarchy labels A. ier o. .e '

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increase the setting. This will reinforce operator action and eliminate the need for the new operator to experiment before making his setting. Experienced operators have no difficulty adjusting to the controller's operation.

3.2.1.3 Displays.

Analog Indicators: As discussed previously, the vertical analog indicators are generally well designed. Scale inconsistencies exist. A specification to provide standard scale progressions has been developed to eliminate inconsistencies. This specification will be used as a guide to correct discrepancies noted on these indicators (see Appendix F).

Analog scales for this plant were designed by the engineering design process so that the normal reading will fall about 1/2 to 2/3 scale. The range of scales have been selected to obtain good definition for readability for the range required and therefore do not necessarily begin at zero. These ranges have been verified against operating procedures as discussed in the Program Plan.

Because of this approach to scale range selection, HEDs identified some scale differences that caused difficulty in making comparative readings. Each HED item was carefully reviewed and where comparative readings are required, the scales will be made the same if appropriate, to the parameters being measured.

3-15

[

HEDs for non-linear scales referred to those that are calibrated to a middle range of readings, such as ammeter scales that range from 50 to 100 , but showed a zero at the bottom. For these, the scale range shown is linear except for the zero position. The team felt that this arrangement is satisfactory, and has the operational advantage of keeping analog meters indicating about mid-scale when readings are normal, but clearly show when the unit is de-energized.

Zone markings have not been installed on the majority of analog displays. This is due to lack of operating experience and the identification of specific system characteristics.

The calculated limits, set points and normal zones can change as plants are started and gain operating experience. To zone meters based upon calculated numbers that will probably change when operation begins can be misleading to the opera-tor and cause operator error. Instead, a procedure will be established to allow operator inputs in determining meters

! to be zoned and to use operating experience to determine correct parameters to be used. This will be a continuing program with appropriate review and decision making. Indi-l cators will be enhanced as required to provide assistance to i the operator in operating the plant effectively.

I Recorders: Chart recorders use both single and_ multiple l

pens. Where multiple pens are used, the colors are distinct and easily distinguishable. The recorder will use the same 3-16

hierarchal labeling system as the vertical meters. In addition, multipen recorders have legends to identify pen colors. Each recorder has paper designed to match its scale.

The stock number of the paper will be identified for each recorder so that the correct paper will be used for replacement. The general specification for scales will also be used on recordern to ensure overall consistency.

Reg. Guide 1.97 Instruments: Instruments that meet Reg.

Guide 1.97 requirements are located throughout the control room. Each instrument will be marked by a vertical yellow stripe to enable operators to quickly identify them. The stripe will be on the face of vertical meters over the section that identifies engineering units. On recorders, the stripe will be on the right edge of the window; it will be similarly placed on other meters. The location of the stripe will be such that it does not interfere with other colors used on the panel (see Figure 3-4).

SPDS: The Emergency Response Facility Display System will provide an SPDS display in the control room. This system is in the final stages of design and implementation. When it is implemented in the control room, an independent human factors review of the system will be performed. The General Electric functional analysis and design documentation will be used and incorporated with the follow-up task analysis as discussed in Section 1.6.8 to ensure operational suitability.

3-17 L.

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l APPENDICES t

Appendix Title A Human Engineering Discrepancies B BWROG Summary Report 1 l

C CRDR Team Resumes D Supplementary Operator Experience Questionnaire E Operator Experience Review, Licensee Event Report Summary F Scale Graduations Specification G Labeling Font Specification for The Philadelphia Electric Company's Limerick Plant l

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e APPENDIX A HUMAN ENGINEERING DISCREPANCIES "1

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r HED ASSESSMENT HED No. Al-01 EP = 4 TITLE: System Grouping

. COMMENT:. Annunciators not above related controls and displays Item: 5.1 Ref.: C1.2 Source: CRS IDENTIFICATION: . Panel: 661,00C-656,626, ADS,602,668,669,00C-650 Component Name: Annunciator System ID or-Number: N/A DESCRIPTION OF PROBLEM:

While annunciators are grouped within panels by system, they are not always above the related controls and displays. See attached sheet; for examples, i RESOLUTION: (Code: D ) (Priority: N/A) (Sched: Fuel Load. )

All annunciator panels will be assigned a hierarchal name that relates them to their associated panel or console. Each will be numbered in sequence, beginning with 101-for identification in procedures. Appropriate- demarcation will also be used between annunciator. panels. (See general discussion of--Annunciator Improvemen ts. ) -

f. . TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS:

Modify alarm response card numbers to conform to new panel

. number.

Team Approval Signature: Date:

(-) Additional page (s) attached e

A-1

Al-01 Relating to panel 661, the Dll alarms are above the D13 controls, the D13 alarms are above the D12 controls, and the D12 and Dl4 alarms are above panel 00C-656.

The l'oca tion of ADS and MSIV leakage control alarms in alarm panel 10C826 is the reverse of the location of related controls on panel 626.

The reactor isolation system alarms of alarm panel LAC 802 are above the ADS panel.

Excess flow check valve and fuel pool alarms of alarm panel 1BC802 are located with the recirculation and RWCU alarms related to panel 602.

Radiation monitoring alarms in alarm panel 00C824 are above panel 668.

Feedwater alarm panel 1BC868 is located above panel 669.

Fira protection alarm panel BBC850 is located above the control room entrance, to the left of fire protection panel 00C-650.

A-2

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i i

HED ASSESSMENT y

--_----------_ r HED No. Al-02 l

..--------- r EP = 4

[

t i

TITLE: Separation of Warning Alarms .

t COMMENT: Warning and diagnostic alarms not separated from

~ advisory displays.

[

Item: 5.2 Ref.: C1.3 Source: CRS I IDENTIFICATION: Panel: 670,660,649,673

- Component Name:- Annunciator System IDLor Number: N/A j DESCRIPTION-OF PROBLEM:

Warning and; diagnostic alarms are not separated from advisory _and informational displays in the following panels: r

- condensate pump and circulation water pump trips (not on . top row)J .

scram input alarms (are not grouped together)

- RHR auto. start alarm window not above permissive start alarm '

I RESOLUTION: (Code:-A ) (Priority: 2-) (Sched: 2nd refueling )

outage ,

Alarm- windows-within panels to be arranged in prioritized groups ;

such that high. priorities will be near the top'.and low priorities ,

.near .the bottom. (See general- discussion aof annunciator improvemen ts . )'

TRAINING REQUIREMENTS:' Mod. Package (MP)

PROCEDURE REQUIREMENTS: MP i

, +

n

. Team Approval Signature:'- Date: -t

(-) Additional page (s) attached [

p 4

A-3 l

e HED ASSESSMENT HED No. Al-03 EP = 4 TITLE: Annunciator Abbreviations COMMENT: Inconsistent use of abbreviations Item: 5.3 Ref.: C2.1 Source: CRS 5.4 ,

IDENTIFICATION: Panel: Various Component .Name Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM: .

i Annunciator abbreviations were not consistent with each other or with overall control room abbreviation conventions. HTX/HX, ,

REACTOR 20 LEVEL / REACTOR LEVEL 3, D/G versus D-G, CONT used for both " containment" and " control". ,

RESOLUTION: (Code: A ) (Priority: 3 ) (Sched: Coordinate w/ )

other annunciator improvements.

Alarms to be relabeled using terminology consistent with related control panels. (See general discussion of. annunciator improvements. )

TRAINING REQUIREMENTS: MP PROCEDURE REQUIREMENTS: MP .

I t

Team Approval Signature: Date:

( ) Additional page(s) attached A-4 ,

~ - - - .

HED ASSESSMENT HED No. Al-04 EP = 4 TITLE: Type Consistency COMMENT:-Type size and style inconsistent.

Item: 5.5 Ref.: C2.2 Source: CRS IDENTIFICATION: Panel: 00C-624, OBC-850, LAC-870 Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM:

Inconsistencies in type size and style noted on the following:

- common . alarm panel over 00C-624 (one window has smaller, darker type)

- window 19 of panel OBC 850

- window 17 of panel-1AC870

' RESOLUTION: (Code: A ) (Priority: 4 ) (Sched: N/A )

If changes are required in conjunction with other HED resolutions, -standard size and style of type will be used. (See general discussion of annunciator improvements . )

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached l

A-5

HED ASSESSMENT HED No. Al-05 EP = 9

' TITLE: Annunciator Height / Viewing Angle COMMENT: Panels are located too high and at too shallow an angle for easy viewing.

Item: 5.6 Ref.: C2.3 Source: CRS

-IDENTIFICATION: Panel: Vertical Boards behind consoles Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM:

It appears difficult for operators to view annunciator panels due to their height and angle when standing between consoles and vertical panels.

RESOLUTION: (Code: D ) (Priority: 4 ) (Sched: N/A )

Annunciators can be read by an operator standing between the consoles and back vertical boards. During emergency operations, the operators work .2s a team with the supervisor-using emergency procedures. -The team will provide monitoring of annunciators and will provide mutual support. These actions will provide adequate coverage of all annunciator alarms.

t-TRAINING REQUIREMENTS: None PROCEDURE. REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-6

HED ASSESSMENT HED No. Al-06 EP = 6 TITLE: Excessive Annunciator Wording COMMENT: Many annunciator windows contain excessive wording.

Item: S.7 Ref.: C2.5 Source: CRS IDE' f1FICATION: Panel: See attached Component Name: Annunciator System ID or. Number: N/A DESCRIPTION OF PROBLEM:

Insuccinct wording. was found on many annunciator legends. (See attached sheet for examples.).

RESOLUTION: (Code: A ) (Priority: 2) (Sched: Coordinate w/ )

other annunciator improvements.

Alarms to be reworded using hierarchal labeling to reduce the number of words on window labels. (See general discussion of annunciator improvements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(2) Additional page (s) attached A-7

y IDENTIFICATION Al-06 GENERATOR HYDROGEN COOLERS H2 OUTLET HI/LO TEMP, panel 1BC870, window 34 EHC EMERGENCY TRIP PRESS LO PRESS TRIP, panel LAC 870 window 46 CONT ENCL ST FLDNG DMPR PNL 00C729 TROUBLE, panel 00C881, window 20 A REFUELING FLOOR ISOLATION SIGNAL INITIATED, panel 10C881 window 23 1A CRD WATER PUMP-TRIP panel 1BC803, window 31 UNIT 1 REAC BLDG EL 352 NORTHWEST AIRLOCK SEAL BROKEN, -

panel 10C889, window 1 CIRC WATER PUMP COOLING WATER BASKET STRAINER FAILURE, panel 10C855, window 43 1 GEN BKRS 452-535/635 POSITION MONITOR CKT CONTROL PWR FAILURE, panel 1BC854, window 5 Dll D-G DIESEL OIL STORAGE TANK HI/LO LEVEL, panel 1AC861, window 19 DIV 1 ADS MANUAL INITIATION SW ARMED / RELAYS SEALED IN, panel 10C826, window 2 A-8 u_

Al-06 DIV 2 LO REACTOR PRESSURE RHR PERMISSIVE TO START, panel

-lCC801, window 25 CONTROL RM EMER FRESH AIR SUPPLY CHARCOAL FILTER A FIRE, panel BBC850, window 26 EMER COOLING SUPPLY FROM CONDENSATZ STORAGE TANK MOV OVLD LOSS OF PWR, panel 10C847, window 21

'A-9 e ._

I HED ASSESSMENT HED No. Al-07 EP = 6 TITLE: Annunciator System Identification

~

COMMENT: Annunciators do not fully identify systems.

Item: H5. 8 Ref.: C2.5 Source: CRS IDENTIFICATION: Panel: 800,801 Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PRO 9LEM:

Some annunciator legends were not specific enough to fully identify the system referred to.

- SUPPRESSION ATMOSPHERIC ANALYZER TROUBLE (panel 10C800, window 28)

- TRAIN A PIPING FILL PUMP AP256 LO PMP DISCH (panel 1BC801, window 14)

MITIGATING CIRCUMSTANCES:

Annunciator response cards define the meaning of each window.

RESOLUTION: (Code: A ) (Priority: 2 ) (Sched: Coordinate w/ )

other annunciator improvements.

Alarms to be reworded using hierarchal labeling and system colors to _ competely identify the system. (See general discussion of annunciator improvements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-10

r e

HED ASSESSMENT !

HED No. Al-08 EP = 6 TITLE: Incomplete & Incorrect Annunciator Legends

, t COMMENT: Annunciators have incomplete, sometimes incorrect legends.

Item: 5.9 Ref.: C2.5 Source: CRS '

5.10 5.11 IDENTIFICATION: Panel: LAC-870, LAC-801 Component Name: Annunciator System ID or Number: N/A ;

i DESCRIPTION OF PROBLEM:

- No process variable specified on windows 43 and 50, panel :

LAC 870 ,

- DIV'l SHUTDOWN COOLING & MIN FLOW VALVES OPEN should read RHR A I

not DIV 1 (LAC 801)- ,

- CORE SPRAY LINE INTERNAL BREAK is not literally correct '

(LAC 801) ;

RESOLUTION:. (Code: .A ) (Priority: 2) (Sched: Coordinate w/ )

other annunciator *

< improvements.

- Ala rms - to'be relabeled to provide complete and correct labels.

(See general discussion of annunciator improvements . )

L TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None !

i.

Team Approval Signature: Date: ,

( ) Additional page (s) attached '

l-i f -

'~ A-ll

J 9 r

i e

HED ASSESSMENT l HED No. Al-09

______________ i EP = 4 j TITLE: Multiple. Trip Levels, Clarity i

- COMMENT: Annunciators legends with multiple trip levels do not

e differentiate levels. ,

t I.

Item: 5.12 Ref.: C2.6 Source: CRS i,

w- i IDENTIFICATION: Panel: Various '

Component Name: Annunciator System ID or Number: N/A-DESCRIPTION OF PROBLEM: I Some alarm windows use terminology'that does not refer clearly to

~

I varying. setpoints for parameters-with multiple trip levels. An i

. example 1 would be " REACTOR LO LEVEL TRIP" versus- REACTOR HI/LO LEVEL.and REACTOR HI LEVEL TURBINE /RFPT TRIP RESOLUTION: (Code: A ) -(Priority: 2) Sched: Coordinate w/ )

other annuncia' tor improvements. !

These alarms to be made clear with' better terminology. They

. represent specific set points. (See general discussion of :

' annunciator improvements.) [

i' - -TRAINING REQUIREMENTS: None t

' PROCEDURE-REQUIREMENTS: None F

i

. ,7 i

e

?

-Team-Approval Signature: Date:

( ) Additional page (s) attached i

A-12 i

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l

_.,,__._,_..__.__.._d

HED ASSESSMENT HED No. Al-10 EP = 6 TITLE: Annunciator Multiple Choice Indications COMMENT: Annunciator legends have multiple choice indications.

Item: 5.13 Ref.: C2.7 Source: CRS IDENTIFICATION: Panel: See attached Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM:

Many annunciators have multiple choice ~ indications that are not differentiated and therefore are potentially confusing to the operator. See attached sheet.

RESOLUTION: (Code: D ) (Priority: N/A) (Sched: Fuel Load )

~ Association between these alarms and the associated indications

' has been improved by enhancements to the panels. (See general discussion of enhancements.) See attached.

TRAINING REQUIREMENTS: None

' PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(2) Additional page (s) attached A-13 Cm

p-i Al-10 IDENTIFICATION (a) TRIP RELAY LOW VOLTAGE OR 386 PROT RELAY TRIP, panel-1BC870, window 6

'(b) HPCI VAC PUMP /COND PUMP / MOTOR OVLD/ LOSS OF PWR, panel 10C847 window 16 (c) COMMON AREA RAD MONITORS DOWNSCALE, panel 00C824, window 35 (d)- SGTS VENT HI-LO/INOP RADIATION, panel 00C881, window 26 (e) . lA RFPT MAID BRG OIL PUMP

'l OR 2 OVLD TRIP /INOP, panel LAC 868, window 1 (f) MSIV LC VALVE / HEATER / BLOWER OLVD/ POWER FAILURE, panel 10C826, window 25

-(g) lA/lB/lC RFPT BRG METAL HI TEMP, panel LAC 868, window 26 (h) NORTH STACK / SOUTH STACK ISO KINETIC SAMPLE HI/LO FLOW, panel 00C824, window 30

-1 A-14

Al-10 RESOLUTION Code D,

a. .This . alarm results in the immediate trip of the turbine and therefore' the reactor. It represents the sum of a series of- 8 relays in a local cabinet. That cabinet must be viewed to identify the cause of the trip. A computer . readout will also give

~this information. -In either case, this is follow-up information

..not immediately required for operation of the plant.

b. Either alarm causes the loss of either pump. Which pump is affected can be' determined on the associated panel by indicating lights.. These. pump indications are side by side. The board will be enhanced to help the operator. identify the pumps.

c. This alarm is for the Area Rad Monitor recorder on the associated board. The recorder contains several channels all of which are properly identified.

d. These~ windows have been changed as a result of a design change to show individual hi and.lo alarms. The Inop alarm has been deleted,

e. Switch -indicating lights on the associated board clearly

-indicate ~ which'ptmps are affected._ Boards will be enhanced to help-the: operator identify the switches.

.f. Switch indicating lights on the associated. board clearly indicate which are affected. Boards ~will be enhanced to help the

-operator identify the switches.

.g. The associated recorder;is located directly under the alarm.

h.. .This alarm was determined not to be required as a result of

a-design chance and has been deleted.

r

HED ASSESSMENT HED No. Al-12 EP = 8 TITLE: Alarm Window Identification i COMMENT: Numeral code on windows is small and difficult to read.

Item: 5.15 Ref.: C2.9 Source: CRS IDENTIFICATION: Panel: -All [

Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM:

The alarm panel numeric code is printed in small numerals on the alarm windows and appears difficult to read from the benchboards.

Alarm panels have not been identified.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Numerical codes on windows to be eliminated. An alphanumeric matrix located around the perimeter of the annunciator will be used to identify the alarms. (5:e general discussion of

annunciator improvements.)

I L TRAINING REQUIREMENTS: N/A i

l PROCEDURE REQUIREMENTS:

Update alarm response cards with matrix identifiers.

l l Team Approval Signature: Date:

! ( ) Additional page(s) attached l

l A-16 I

r-i HED ASSESSMENT HED No. Al-13 EP = 12 TITLE: Annunciator Silence Button COMMENT: No silence button has been provided for annunciator alarm response.

Item: 5.16 Ref.: C5.1 Source: CRS l IDENTIFICATION: Panel: All Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM: 1 No silence controls are provided with the annunciator response controls. Each set of controls should include a silence control, and it should be possible to silence auditory alert signals from ;

any set of response controls in the primary operating area. l l

RESOLUTION: (Code: B ) (Priority: 1 ) (Sched: 1st R )

The acknowledge button silences each alarm. A fourth ' Silence' button is not possible with present system. In this system, a silence button would preclude a subsequent alarm from a l different window within a particular audio annunciator panel. A tone-down system will be installed.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None 1

l l

Team Approval Signature: Date:

( ) Additional page (s) attached A-17 l i

HED ASSESSMENT HED No. Al-14 c ,

TITLE: Annunciator Flash Rates COMMENT: Flash rates do not change when alarm clears.

' Item: 5.17 Ref.: C6.4 Source: CRS C6.5

. IDENTIFICATION: Panel: All Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM:

Flash rate does not slow automatically when an alarm input clears, neither does the rate decrease when alarms are cleared by operator action only.

RESOLUTION: (Code: B ) (Priority: N/A) (Sched: Fuel Load )

Current annunciator sequence provides for'a silencing of audible and ' steady-on' for lights as. an alarm is acknowledged.

When an alarm clears, the selector slide switch located inside each alarm window would remain in the ' acknowledged' state or return to ' normal' - (light - of f, - audible of f) . The reset returns

-a cleared alarm to normal if in the manual clear mode. If the slide switch is in the auto-clear. mode, the alarm light. will automatically- return _ to normal.- Initially all selector slide switches will.be set-to the ' Manual' position. Operators will selectively recommend changing switches to ' Auto Clear' position through appropriate administrative procedures.

TRAINING REQUIREMENTS: None-PROCEDURE REQUIREMENTS:

~ Procedure for setting alarm slide switches.

f -

Team Approval Signature: Date:

( ) Additional page(s) attached A-18

HED ASSESSMENT HED No. SA2-01 EP = 6 TITLE: Annunciator Multiple Choice Indications

' COMMENT: Annunciator legends have multiple choice indications.

Item: N/A Ref.: C2.7 Source: SCRS IDENTIFICATION: Panel: 673_(See attached)

Component-Name: Annunciator System ID or Number: N/A DESCRIPTION:

Many annunciators have multiple choice indications that are not

- differentiated and therefore are potentially confusing to the operator.

RESOLUTION: (Code: F) . (Priority: 4 ) . (Sched: N/A )

When alarmed,- a floor operator is required to be dispatched to the related equipment. .The' action is the same on a given window for multiple choice indication. Control room actions would be the same. regardless of which multiple choice caused the . alarm.

Primary concern . will be condenser vacuum. This is not a discrepancy.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team-Approval Signature: Date:

( ) Additional page(s) attached A-19 m

SA2-01 1

IDENTIFICATION VARIOUS WINDOWS A30VE PANEL 673 2 UNIT 2 UNIT GAS'RADWASTE RECOMBINER AFTERCOND TRAIN HI/LO LEVEL AFT COND HI/LO LEVEL 2 UNIT 2 UNIT REFR MACHINE RECOMBINER HI/HI-/ LO/LO TRAIN TEMP PREHEATER HI/LO LEVEL S

A-20

. _ _ - _ - . .. . ~ _ .

HED ASSESSMENT HED No. SA2-02 EP = 6 TITLE: Excessive Annunciator Wording COMMENT: Annunciator windows contain excessive wording.

Item: N/A Ref.: C2.5 Source: SCRS IDENTIFICATION: Panel: 673 (See attached)

Component Name: Annunciator System ID or. Number: N/A DESCRIPTION:

t

, Insufficient wording was found on many annunciator legends. l (See attached sheet.) !

RESOLUTION: (Code A ) (Priority: 3) (Sched: Coordinate w/ )

other annunciator improvements.

Alarms to be reworded using hierarchal labeling to reduce the number of words on window labels. (See general discussion of annunciator improvements.)

TRAINING REQUIREMENTS: None

~

PROCEDURE REQUIREMENTS: None Team Approval Signature: Date: <

( ) Additional page(s) attached A-21

4 HED ASSESSMENT HED No. Dl-01 EP = 9 TITLE: Control / Display Height COMMENT: Controls and displays exceed height maximum and minimum.

Item: 3.1.1 Ref.: A1.1 Source: CRS

3.3.9 IDENTIFICATION

Panel: 601,647,648,670,654,661,626,600,668,669, Component Name: N/A 607,00C-667,00C-671,00C-650, ID or Numaer: See below 00C-693,00C-660 DESCRIPTION OF PROiLEM:

Panels have controls and displays located both above and below control / display maximum and minimum height requirements:

Controls: 20" to 80", recommended 42" to 60" Displays: 22" to 92", recommended 48" to 68" RESOLUTION: (Code: F ) (Priorfty: 4 ) (Sched: N/A )

All panels have been reviewed for controls and displays above and below the recommended heights. The review revealed no problems with height.- See general discussion on height of controls and displays.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-22

e ,

HED ASSESSMENT HED No. Dl-02 I

EP = 6 TITLE: Annunciator Anthropometric Height Standards 5

COMMENT: Vertical panels do not meet measurement standards.

Item: 3.1.1 Ref.: Al.1 Source: CRS IDENTIFICATION: Panel: Annunciator Panels (exception 675 & 696)

Component Name: Annunciator System ID or Number: N/A DESCRIPTION OF PROBLEM:

Annunciator panels are located above the 88 inch maximum allowed; top rows are at 118 inches.

MIT" GATING CIRCUMSTANCES:

Annunciators are above the vertical back panels and the normal operating station is in front of the consoles. This allows a satisfactory viewing angle from the normal station.

RESOLUTION: (Code: F ) (Priority: 4 ) (Sched: N/A ) l l

There is no practical way of lowering the height of the annunciators. They are visible and readable from their present ,

location.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-23

.. = --

HED ASSESSMENT HED No. Dl-03 EP = 8 TITLE: Mir ro r-In. aged Panels.

COMMENT: The generator and auxiliary power panels are mirror- r imaged.

Item: 3.1.2 Ref.: A1.2 Source: CRS P

IDENTIFICATION: Panel: 10C-654 & 20C-654 Component Name: N/A

~ID or Number: N/A DESCRIPTION OF PROBLEM:

The controls and displays on the generator and- auxiliary ' power panels are laid out in mirror-image of each other.

RESOLUTION: (Code: D) (Priority: N/A) (Sched: Fuel Load )

These panels are arranged on either side of 660 (Start-up power).

This arrangement is to indicate the distribution network of start up power to each unit (see attached). The mirror imaging effects are minimized and compensated for by the design of enhancements, which clearly indicate the load centers and aux bus distribution mimicing. The arrangement is not considered a detriment to operator performance.

TRAINING REQUIREMENTS: None t

PROCEDURE REQUIREMENTS: See HED Pl-01 Approval Signature: Date:

( ) Additional page(s) attached r

A-24

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J HED ASSESSMENT HED No. Dl-04 I

EP = 9 TITLE:. Panel Obstruction COMMENT: Vertical panels behind benchboards are partially obstructed.

Item: 3.1.3 Ref.: A7.1 Source: CRS !

A7.2 F

IDENTIFICATION: Panel: 00C-624,693,10C-669,670,610,614,607,649 10C-600,626,601,648,647 Component Name: N/A ID or Number: N/A-DESCRIPTION OF PROBLEM:

Physical access and visibility of the vertical panels located behind benchboards is obstructed by the benchboards.

i RESOLUTION: (Code: F ) (Priority: 4 ) _(Sched: N/A )

See attached. (RESOLUTION)

TRAINING REQUIREMENTS: None

, PROCEDURE REQUIREMENTS: None J-t e

Team Approval Signature: Date:

(1) Additional page (s) attached

~ ,

' >m, Pm

, ,Ay26

Dl-04 RESOLUTION A team analysis _was conducted in the control room to analyze each back panel control and indication that was below the height of 48 inches. For each, it was first determined whether the control was required for an emergency condition or for normal operation.

Then an analysis was made of the consequences of not noticing a change in state or exceeding a normal range. For e xample , a valve that is either open or closed when it is expected to be the opposite, or a- pump stopped when expected to be running. This analysis took no credit for isles between consoles or frequent normal movement of operators to the back panel area, but considered only what could not be seen by the operator standing in front of the consoles. It was assumed the operator's height was that of a 64 inch or 5th percentile male. An exception was for emergency systems used for emergency core cooling, which are located on one of these vertical panels behind a console. For situations that require ECCS, the control room team procedure requires that the Chief Operator take station at the ECCS panels to operate them as a member of the emergency procedure control team. Therefore, any instruments and controls he could directly observe from his emergency station were considered satisfactory.

All of these controls and indications were considered in the review for normal operations when the operator was not stationed at the ECCS panels.

The lack of direct visibility was considered satisfactory if an abnormal condition would result in an alarm indication that could be observed by the operator, or would result in some other condition easily detected by the operator and alerting him to take appropriate action. In such a case, the action was required to be timely. In those instances where a control out of position would cause an immediate plant shutdown that the operator could not have taken action on even if he had been observing it directly, it was considered satisfactory in its present location.

The intent of this analysis was to determine whether it is necessary to move a control or indication to a more observable location, or to provide an annunciator alarm to alert the operator.

The review revealed no instances where it would be necessary to move the control or indication, or to add an annunciator alarm.

Related indicators and recorders are visible to alert the operator well before a response is required. These related indications were determined to provide at least as much alert to the operator as if the direct indication or control in question were observed. For the ECCS panels, all instruments and controls were observable by the operator when at his emergency station.

A-27

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HED ASSESSMENT z HED No. Dl-05 i 3 EP = 6

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TITLE: , Annunciator Window Visibilit'y ,

,_ ~

COMMENT: Annunciator windows are not'

~ visible from primary 's ,

operating area. .

\

Item: 3.1.4 Ref.A7.3 , Source: CES. '

2 3 ';

w . .

~ ^ ,

. w N IDENTIFICATION: Panel: 696,00C-675 -

~... 'T s Compc/ ant Name: Annunciator Windows. '.

ID or Number:'N/A '

DESCRIPTION OF PROBLEM:-

Annunciator windows for meteorological, posts ,LOCA hydrogen recombiner-panels are not-visible from. primary operating area. !

' RESOLUTION: -(Code: A) (Priority: N/A) (Sched: N/A )

These panels are located behind the vertical back panels, not in the at-controls area of the control room. They are panels that i

.will be.used in the later stages of an accident and are' intended to' he manned by personnel supplementing the shift- team. Panel-696 . is- the Post Loca .Recombiner panel, and 675 is the

Meteorlogical Station. _ General ' alarms for the 696 panels are located on the annunciator in the at_ controls area of the control ~

room. Meteorlogical - information is available on a CRT'in the ,

at-controls area. This is considered not to be a discrepancy. i TRAINING REQUIREMENTS: None l

PROCEDURE REQUIREMENTS: None ;

Team Approval Signature: Date:

( ) Additional page(s) attached r

A-28

r' HED ASSESSMENT HED No. D2-01 EP = 8 TITLE: Panel Demarcation Lines COMMENT: Heating and Ventilation panels are not distinguished

-from each other.

Item: 3.2.1 Ref.: A2.1 Source: CRS IDENTIFICATION: Panel: 20C-681, 00C-681 Component Name: N/A

-ID or Number: N/A DESCRIPTION OF PROBLEM:

Common heating- and ventilation console not distinguished from Unit 2 console by-demarcation lines or other means.

RESOLUTION: (Code:~A) (Priority: N/A) (Sched: Fuel Load )

A demarcation line will be placed between the Unit 2 and Common sections .of the console. Console names will be part of hierarchal labeling. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None

-PROCEDURE REQUIREMENTS: None-l t

i

[-

Team Approval Signature: Date:

( ) Additional page(s) attached i

A-29 l

L__

r; HED ASSESSMENT HED No. D2-02 EP = 4 TITLE: Incomplete Demarcation -

COMMENT: Part of demarcation line is missing.

Item: 3.2.2 Ref.: A2.1 Source: CRS IDENTIFICATION: Panel: 00C-656 Component Name: N/A ID-or Number: N/A DESCRIPTION OF PROBLEM:

Part of the. demarcation line that distinguishes panel 00C-656 is missing.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

A demarcation line is not required and will be removed.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-30 m

r :-

HED ASSESSMENT HED No. D2_03 EP = 6 TITLE: Instrumentation Grouping

. COMMENT: Groups of controls and displays are not easily identified.

Item: 3.2.3 Ref.: A2.2 Source: CRS IDENTIFICATION: Panel: See attached Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

While generally grouped by function, grouping is not visually apparent as groups run into one another. See attached comments.

' RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Corrected 'through enhancement. (See general discussion of enhancements.) 00C_650 not covered by CRDR.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None I

Team Approval Signature: Date:

(1) Additional page(s) attached f

A-31 L:

IDENTIFICATION D2-03 Enclose sets of related indicators - panel 652.

Enclose related turbine and main steam displays and selector switches - panel 653.

Separate RFPT controls and IRM/APRM range switches and indicating lights - panel 603.

' Continue demarcation lines to vertical portion of panel 655.

Enclose related displays and controls - panel 00C-681.

Enclose related displays - panels 647 and 648.

Enclose related electrical meter displays and synchroscopes, panels 654 and 00C660.

3.

Enclose fire pump displays and controls - panel 00C-650.

Separate and enclose related sets of small indicators,

.pushbuttons, and switches on panel 670.

Separate MSIV inboard division 1 and outboard division 2 and ADS division 1 and 3 - panel 626.

A-32 L

HED ASSESSMENT HED No. D2-04 EP = 6 TITLE: Reactor Scram Buttons COMMENT: Manual scram buttons not easily distinguished from other controls.

Item: 3.2.3 Ref.: A2.2 Source: CRS IDENTIFICATION: Panel: 603 Component Name: Manual Scram Pushbuttons ID or Number: Same as above DESCRIPTION OF PROBLEM:

Emergency controls should be visually highlighted for rapid location and to' prevent inadvertent use.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Resolved through color enhancements and highlighting. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

f ( ) Additional page (s) attached A-33

m HED ASSESSMENT HED No. D2-05 EP = 6 TITLE: Annunciator Response Controls ,

COMMENT: Annunciator controls are grouped with other controls and are difficult to identify rapidly.

Item: 3.2.3 Ref.: A2.2 Source: CRS IDENTIFICATION: Panel: All Component Name: Annunciator response controls ID or Number: N/A DESCRIPTION OF PROBLEM:

Annunciator controls require rapid response by the operator, often used with a blind reach. They should be easily identified visually and tactually.

RESOLUTION: (Code: A ) -(Priority: 3) (Sched: Before Crit.)

Resolved through use of color enhancements. All ACKNOWLEDGE Pushbuttons are tactually distinguishable due to their mushroom (palm-actuated) shape except panel 00C-667 which will be made consistent with others. The TEST pushbutton will be guarded.

(See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-34

HED ASSESSMENT HED No. D2-06 EP = 12 TITLE: Hierarchal Labeling and Grouping D

COMMENT: Hierarchal labeling techniques generally have not been used in relation to grouping.

Item: 3.2.4 Ref.: A2.3 Source: CRS IDENTIFICATION: Panel: All Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

The intended use of grouping of instruments is not clear from labels. There.is no hierarchal labeling system that identifies the main purpose of groupings, nor are groups graphically separated.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Resolved through enhancement and hierarchal labeling of control room. Label font specifications developed. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-35

n.

HED ASSESSMENT HED No. D2-07 EP = 6 TITLE: Demarcations on Vertical Panels COMMENT: There is inadequate differentiation of groupings on some vertical boards.

Item: 3.2.4 Ref.: A2.3 Source: CRS IDENTIFICATION: Panel: 601,00C-660,00C-650,668,626 Component Name: Vertical Panels ID or Number: N/A DESCRIPTION OF PROBLEM: The following are not separated:

601 - Mainsteam inboard and outboard isolation 660 - Meters for safeguards transformers, auxiliary switchgear, and start-up busses 650 - Meter and diesel driven remote start switches and indicators for fire pumps 668 - Switch arrays on panel 626 - Systems within divisions of MSIV inboard and outboard leakage control RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Panel enhancements have been used to resolve system differentiation and grouping problems on panels 10C-601, 00C-660, 10C-668, 10C-626. Panel 00C-650 not included in CRDR. (See general discussion on enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-36 L

HED ASSESSMENT HED No. D2-08 EP = 4 TITLE: Mimics - Bar Width COMMENT: Incorrect use of bar width in coding-mimics.

Item: 3.2.5 Ref.: A2.4 Source: CRS IDENTIFICATION: Panel: 601,648,647 Component Name: See below description.

ID or Number: N/A DESCRIPTION OF PROBLEM:

Some mimics use primary width bars for secondary flow paths.

These include flow paths from: core spray pumps te minimum flow bypass valve, main steam drain lines to equalizer valve, bypass line- through RHR pump minimum flow valve (601); and steam line warmup bypass valves in RCIC & HPCI mimics (648,647).

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Enhancements have changed all mimics to use three graduations of mimic lines. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-37

m HED ASSESSMENT HED No. D2-09 EP = 4 TITLE: Mimic Contrast COMMENT: Poor color contrast between mimics Item: _3.2.6 Ref.: A2.5 Source: CRS IDENTIFICATION: Panel: 601 Component Name: Mimic lines ID or Number: N/A DESCRIPTION OF PROBLEM:

Good contraat'between mimics and panel, 'but red, dark green and dark blue mimics do not contrast each other well.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Mimics _have been redesigned with new colors that provide adequate color contrast. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-38

HED ASSESSMENT HED No. D2-10 -

EP = 8 TITLE: Mimic Quality COMMENT: Some mimics appear poorly made and installed.

Item: 3.2.7 Ref.: A2.6 Source: CRS IDENTIFICATION: Panel: 601, 647, 648 Component Name: Mimic lines ID or Number: N/A DESCRIPTION OF PROBLEM:

Mimics- appear to be of low quality and have been installed without proper care.

RESOLUTION: (Code: A) (Priority: N/A ) (Sched: Fuel Load )

Mimics will be either painted or be of an acceptable adhesive colored' taping to ensure proper installation and durability. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-39

.r -

i HED ASSESSMENT HED No. D2-ll EP = 4 TITLE: Missing Mimic Lines COMMENT: Portions of mimic lines are missing.

1 Item: 3.2.8 Ref.: A2.6 Source: CRS IDENTIFICATION: Panel: 647,654 Component Name: Mimic lines ID or Number: N/A DESCRIPTION OF PROBLEM: '

. Mimics are incomplete for following areas: HPCI pump discharge valve; steam trap to steam line drain inboard isolation valve; discharge of barometric condenser vacuum pump (647); and 13.2 bus mimic (654).

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Resolved through enhancements - completion of mimic lines. (See general discussion of enhancements.) i TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None l

Team Approval Signature: Date

( ) Additional page (s) attached A-40

r HED ASSESSMENT HED No. D2-12 EP = 4 TITLE: Incomplete Demarcation Lines COMMENT: Portions of demarcation lines are missing or incomplete.

Item: 3.2.8 Ref.: A2.6 Source: CRS IDENTIFICATION: Fanel: 00C-667, 00C-656 Component Name: Mimic lines ID or Number: N/A DESCRIPTION OF PROBLEM:

Demarcation lines are not complete in the following locations:

between Riin A and B systems (00C-667) and on Panel 00C-656.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Will be corrected through panel enhancements. See general discussion of enhancements and HED D2-02 (panel 656).

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature Date:

( ) Additional page(s) attached A-41

~~

f: .

HED ASSESSMENT HED No. D2-13 EP = 12 l

-TITLE: Mimic Flow Path Arrangement TCOMMENT: Flow paths and arrangements are not orderly or easily recognized Item: 3.2.9 Ref.: A2.7 Source: CRS IDENTIFICATION: Panel: See attached Component Name: -See attached ID or Number: See attached DESCRIPTION OF PROBLEM:

Flow paths are confusing, often appearing to connect where they

'should not, and sometimes incorrect. See attached.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Resolved through improvement of mimic lines as part of panel enhancements. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS:- None Team Approval Signature: Date:

( ) Additional page(s) attached A-42 m

D2-13 RHR 1A mimic lines for minimum flow bypass and suppression pool sparger flow appear to connect, but should not - 601.

Some flow arrows are misplaced, such as that to the A containment hydrogen recombiner cooling water inlet valve - 601.

RHR servicing water crosstie mimic flow arrow is pointing to an end point ' labeled " from RHR switch system" - 601.

Core spray B suppression pool return lines for test and minimum flow bypass are very alose and congested with the main turbine-stop valve and demarcation line. Congestion is also evident in the mimic lines from the pumps to the bypass valve - 601.

A-43

f-HED ASSESSMENT HED No. D2-14 EP = 6 TITLE: Mimic Flow Path Arrangement COMMENT: Flow patha and arrangements are not orderly or easily recognized.

Item: 3.2.10 Ref.: A2.7 Source: CRS 3.2.11 A2.8

~3.2.13

, . IDENTIFICATION: Panel: See attached Component Name: See attached ID or Numher: See attached DESCRIPTION OF PROBLEM:

Flow paths are confusing, often appearing to connect where they should not, and sometimes incorrect. See attached.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Resloved through improvement of mimic lines as part of panel enhancements. Redesign of mimics clearly indicate flow paths.

(See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-44

D2-14 IDENTIFICATION Flow paths for the RCIC and HPCI systems of panels 648 and 647 are somewhat confusing. The steam traps on the steam drain lines appear to be bypasses and the drain pot bypass valves appear to be the main flow path. Also, the steam trap symbol is missing after the turbine drain pot in the HPCI mimic.

In Lafeguard system B, panel 661, safeguard switchgear feeder breaker synchronizing switch 101-D12 appears to connect with the 201 safeguard bus. This mimic line should connect with the 101 bus.

A line of demarcation between the reactor water sample line isolation valve switches and the recirculation flow loop A system would clearly show recirculation systems A and B to be identical in layout, panel 602.

A-45

y .

L HED ASSESSMENT HED No. D2-14A EP = 4 TITLE: Rod Position Location COMMENT: Difficult to locate rod position on array.

I Item: 3.2.12 Ref.: A2.7 Source: CRS f IDENTIFICATION: Panel: 649 -

I Component Name: Control Rod Display (Core Map)

ID or Number: N/A I

DESCRIPTION:

Large. array of lights on panel makes it difficult to identify a specific location within the array - even with labeling along the ;

edges of the array. l RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A ) j This panel provides overall light patterns that can be interpreted by the operator from his normal control station. .

Abnormal indications requiring specific information are followed I up by deliberate action and do not require reading from a ^

distance. The panel serves its purpose as installed and does not require enhancement. ,

l TRAINING REQUIREMENTS: None l r

PROCEDURE REQUIREMENTS: None r

Team Approval Signatures Date:

( ) Additional page (s) attached A-46 ,

i

r l

HED ASSESSMENT i l

HED No. D2-15 i EP = 4 i

TITLE: Mimic Flow Direction l COMMENT No use of intermediate flow arrows l

Item 3.2.14 - 3.2.17 Ref. A2.9 - A2.ll Source: CRS 3.3.6 A3.3 ,

f IDENTIFICATION: Panel 601,647,648 Component Name See attached ID or Number See attached j DESCRIPTION OF PROBLEMI i

Flow direction arrows are placed only at the end of mimics, no intermediate arrows are used. '

RESOLUTION: (Codes A) (Priority: N/A) (Sched Fuel Load )

Mimic- lines and arrows improved as part of panel enhancements. .

Intermediate flow arrows not needed under enhancement schemes. i (See general discussion of enhancements.) .

1 i

TRAINING REQUIREMENTS None PROCEDURE REQUIREMENTS None i

f Team Approval Signature Datet

i

( ) Additional page(s) attached l-I t

A-47 i

D2-15 IDENTIFICATION Flow arrows used in mimics on panels 601, 647, and 648 are generally located at the end of a mimic bar between components.

Some use of intermediate flow arrows may clarify flow paths, especially where the paths are complex (not straight lines) .

The end point from the barometric vacuum pump in the HPCI mimic panel 647, is not identified.

The destinations for the 220kv plant output lines are not identified.

The mimics of panels 647 and 648 do not integrate manual valves.

A-48

{ l i

i r

?

t HED ASSESSMENT HED No. D2-16 :

_________.____ l EP = 8 (

i i

. TITLE: Component Integration COMMENT: Mimics are not used to integrate components in some [

areas. t i

^

Items 3.2.18 Rcf.: A2.ll Source: CRS f l

t IDENTIFICATION: Panel: 647,648,096,00C-650 !

Component Name: Mimics j ID or Number: See below .

t DESCRIPTION OF PROBLEM: f Mimics are not used to integrate components on post LOCA hydrogen [

recombiners on panel 696, and remote start switches for fire t pumps on panet 00C-650. !

Note: 10C-696 and 00C-650 are not included as part of the CRDR. L (See discussion regarding panels within scope of this ef fort.) l t

RESOLUTION: (Code: B) (Priority: N/A) (Sched: Fuel Load ) t i

Mimics used where appropriate. (See general discussion of i enhancements.) l TRAINING REQUIREMENTS: None i

k P'ROCEDURE REQUIREMENTS: None !

i i

t.

t i

Team Approval Signature: Dates !

i

( ) Additional page(s) attached j P

A-49 '

.z

I HED ASSESSMENT ,

HED No. D3-91 EP = 9 TITLE: Mirror Imaging COMMENT: Controls and displays are mirror imaged.

Item: 3.3.1 Ref. A3.1 Source: CRS A3.2 IDENTIFICATION: Panel 99C-681, 99C-669, 10C-654,20C-654 Component Name: See below ID or Number: N/A DESCRIPTION OF PROBLEM:

Mirror imaging was found in the following controls and displays:

. controls on panel 99C-681, circular meter displays on~ panel 99C-660, displays and controls botween panels 10C-654 and 20C-654. l This type of t;rrangement should be avoided.

RESOLUTION: (Code: D) (Priority: N/A) (Sched: Fuel Load )

Enhancements have been designed to indicate functional aspects and the specific control display relationships so as to minimize the negative aspects of mirror imaging. (See general discussion of enhancements.) For 669 and 654, refer to HED D1-93.

TRAltlING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None l

Team Approval Signatures Date:

( ) Additional page(s) attached I

A-50 ,

r HED ASSESSMENT HED No. D3-02 EP = 6 TITLE: Turbine Lift Pump Controls COMMENT: Controls for pump operation and for pump tests are not laid out identically.

Item: 3.3.2 Ref.: A3.1 Source: CRS IDENTIFICATION: Panelt 670 Component Name: Turbine Bearing Lif t Pump Inlet Pressure Buttons ID or Number: See attached print DESCRIPTION OF PROBLEM:

One set of controls is used to operate the nine lift pumps.

Another set of controls is used to test and reset the nine lift pumps. These two groups of controls are not arranged identically.

MITIGATING CONSIDERATIONS:

Tests of the pumps are used in a deliberate manner under no stress conditions. An error in operation would have no signifigant effect.

RESOLUTION: (Code: F) (Pri3rity: 4) (Sched: Fuel Load )

These controls have been enhanced to more easily relate the controls. Tests of the pumps are conducted in a deliberate manner under no-stress conditions. An error in operation would have no significant effect on the plant. Rearrangemont is not warranted. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-51

HED ASSESSMENT HED No. D3-03 EP = 6 3

. TITLE: Control / Display Relationships j L

COMMENT: Related controls and displays are not grouped together. I t

F Item: 3.3.3 Ref.: A3.1 Source: CRS l

IDENTIFICATION: Panel: 668 l Component Name: Feed Water Drain and Dump Switches ,

ID or Number: See attached print l DESCRIPTION OF PROBLEM: ,

The feedwater drain to feedwater heater switches indicating l lights are separated by an un-related group of controls and displays. This makes it difficult to associate them.

RESOLUTION: (Code: F) (Priority: 3) (Sched: Fuel Load )

This set of control 3 was poorly labeled and gave a wrong i impression of their functions. The controls are arranged in the proper sequence, and they have been enhanced and relabeled to .

clearly indicate their function. l l

r TRAINING REQUIREMENTS: None ;

PROCEDURE REQUIREMENTS: None i

L P

P Team Approval Signature: Dates

( ) Additional page(s) attached l

A-52

I HED ASSESSMENT HED No. D3-04 EP = 6 .

TITLE: Arrangement of Related Controls COMMENT: Related controls are not ordered identically.

Item: 3.3.4 Ref.: A3.2 Source: CRS I

I IDENTIFICATION: Panel: 603 Component Name: RFPT Turning Gear Switches ID or Number: See attached print DESCRIPTION OF PROBLEM:

RFPT turning gear switches are ordered top-to-bottom, but the associated RFPT controllers are ordered left-to-right possibly creating confusion.

l RESOLUTION: (Code: D) (Priority: N/A) (Sched: Fuel Load )

These controls have been enhanced to clearly relate the functions. The vertical arrangement of switches for turning gear matches four other columns of feed pump related switches adjacent to the turning gear switches. It is not practical to arrange the three controllers in a vertical line and if so arranged would not line up with other five columns of switches. The enhancement approach is considered to be the best solution.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signatures Date:

( ) Additional page(s) attached A-53

y -_ -7y_ _. -_.

x .

, ;. ?

HED ASSESSMENT HED No. D3-05 EP = 6 TITLE: Control Arrangement COMMENT: Components are not arranged in expected order.

Item: 3.3.5 Ref.: A3.2 Source: CRS IDENTIFICATION: Panel: 603,652,654,681,00C-681 Component Name: See attached ID or Number: See attached prints ;

l DESCRIPTION OF PROBLEM: j See attached. -

r l r

RESOLUTION: (Code: A& F) (Priority: See attached) (Sched: See r

attached)

See' attached. (RESOLUTION)

\

TRAINING REQUIREMENTS ' Mod. Package l

PROCEDURE REQUIREMENTS: Mod. Package , ,

, l.

Team Approval ~ Signaturet Datet !

l

( ) Additional page(s) attached i

1 o

A-54

l l

l D3-05 RESOLUTION

a. Heat flux detectors: This is the proper order because they are installed in the core from bottom to top. Code F

b. SJAE valves: Controls should be swapped so that A will be on top and B on the bottom. Code: A; Priority: 4; Sched: N/A

c. Drywell Cooling Fans: These fans are used for normal operation ambient temperature control in the drywell. They are lined up and operated under low stress conditions. During emergencies, they are all isolated and running. The unusual sequence is caused by separation requirements, but will not detract from operation. Several alternative arrangements were considered but none were found to be superior to the present arrangement. The fan controls and the associated instruments have been enhanced to allow easy association of any fan with it's I temperature indication. Coder F; Priority: 4; Sched: N/A l

d. Indicators will be regrouped and enhanced to provide proper grouping and relation to controls. The controls have been l enhanced to make their groupings clear and relate them to the i indicators above. Code: A; Priority: 2; Sched lat Refueling l l

e. Generator Load Adjust: The switches on panel 654 are incorrect and will be swapped. See HED 12-06. Code: A; Priority: 3; Sched: 1st Refueling l

l 4

A-55

t. <

3 , .

~

HED*ASSESSMENT 2_____

, 'N; " 'J , .,

[~ , ., - HED No. D3206 '

, i. ' _______ __ _

s i

EP = 9% .,

f*

.-, ' A.

TITLE: FunctionaliGroup'ing

~

, b . .

COMMENT: Coutrols and d' splays are not> arranged in functional or sequential relationships q, , -

Item: 3.3.6 '

Ref.: A3.3 Sourc4: .CRS i .. N ,,

4 ,% ,

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~

IDENTIFICATION: Panel: 00C-681,654 . .

Component Name: N/A '

Id'or: Number: N/A -q 1 DESCRIPTION OF PROBLEM: .

Functional. arrangement of; controls and displays is.not. apparent and-component relationships are difficult to comprehend.

s > ,

~ RESOLUTION:

s 654: Code: A Priority: 3 Sched: 1st Refueling [

681: Code:A Priority: 2 Sched: 1st Refueling (See D3-05d) -

Enhancements and rearrangements have been designed to identify and reinforce function / operational, relationships.; (See general discussion _of enhancements..). (For 00C-681 refe5

~ '

\to HED D3-05, part d.) ,

<r TRAINING REQUIREMENTS: -Mod. Package ,

w

-PROCEDURE REQUIREMENTS: Mod. Package '

- .a 4

-Team Approval Signature: Date:

( ) Additional page (s) attached ,

. t , i

~

=k A-56 l.

g...

HED ASSESSMENT HED No. D3-07 EP = 9 TITLE: Component Identification COMMENT: Individual components are difficult to identify in large strings or matrices of similar components. -

Item: 3.3.7- Ref.: A3.4 Source: CRS IDENTIFICATION: Panel: 00C-681,652,653,654,660,601,00C-667 Component Name: N/A 668,626,649 ID or Number: N/A DESCRIPTION OF PROBLEM:

. switch and indicator arrays and matrices are not differentiated into. subgroups, 'and are therefore difficult to identify in large groups of components with similar functions.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

All panels have . been enhanced to identify groups of

' instrumentation and controls and then relate them effectively.

Hierarchal labeling has been used to identify each group.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-57

HED ASSESSMENT HED No. D3-08 EP = 9 TITLE: Indicator Label Crowding COMMENT: Strip of similar labels are confusing.

Item: 3.3.7 Ref.: A3.4 Source: CRS IDENTIFICATION: Panel: 00C-681, 10C-681 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

The strings of-indicator labels on the console upright panel make it- difficult to identify one. component as all the labels are similar.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Labels will be. completely changed in' conjunction with hierarchal labeling. (See general discussion of enhancements.)

' TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-58

HED ASSESSMENT HED No. D3-09 EP = 9 TITLE: Coding Consistency COMMENT:-There appears to be no coding convention applied.

Item: 3.3.2 Ref.: A3.5 Source: CRS IDENTIFICATION: Panel: 651,652 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

Coding methods such as demarcation lines, shading, spacing and switch shape are not used consistently between panels; variations in these occur on both panels.

RESOLUTION: (Code A) (Priority: N/A) (Sched: Fuel Load )

Overall enhancement design rectifies these discrepancies. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Approval Signature: Date:

( ) Additional page(s) attached A-59 u

(~

HED ASSESS!!ENT HED No. D3-10 EP = 9 TITLE: Control Reach Distance COMMENT: Controls are located outside. recommended ranges.

Item: 3.3.9 Ref.: A3.6 Source: CRS IDENTIFICATION: Panel: See attached Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

See attached.

RESOLUTION: (Code: F) (Priority: 4) (Sched: N/A )

A systematic walkthrough of the control room was conducted with a 5th . percentile male (5'4") clothed operator. All controls were-within his functional reach (28.6") A Sth percentile female (clothed) is 51.8" whose extended functional reach is 28.9" (see attached). In addition, these controls (outside recommended ranges) are not frequently used or used for precise operations.

As a result, the controls are considered acceptable.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-60

D3-10 Panels which have both controls and displays located high and/or low are:

601 668 647 669 648 607 670 00C-667 654 00C-671 661 00C-650 626 00C-693 600 Remote Shutdown

. Displays are located high on panel 00C-660. Some controls, such as the- RBM bypass, are located high on benchboard 603 for a seated operator.

l-l i

l'.

1 I

I l-i l

I L A-61

f:

HED ASSESSMENT HED No. D3-ll EP = 6

TITLE: Related Control / Display Location COMMENT: Control for effecting display is located in excess of

-orm's reach from the display.

Item: 3.3.10 Ref.: A3.7 Source: CRS IDENTIFICATION: Panel: 601 Component Name: Hydrogen Indicator Range Selector Switch ID or Number: ' Check current print DESCRIPTION OF PROBLEM:

The Hydrogen' Indicator Range' Selector Switch is located more than cn . ann's reach from 'the display making it dif ficult to view the indicator while manipulating the switch.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

The Hydrogen indicator has been removed from this panel as a

' result of a design change. No longer a discrepancy.

-TRAINING REQUIREMENTS: None

- PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-62 m

f HED ASSESSMENT ,

HED No. D4-01 EP = 6 TITLE: Indicator Lights COMMENT: Color usage not consistent.

Item: 3.4.1 Ref.: A4.2 Source: CRS IDENTIFICATION: Panel: 602 Component Name: Green Status Light ID or Number: Power Supply Generator Lockout Bus DESCRIPTION OF PROBLEM:

Power. supply- generator-lockout bus status light is green, all other. status lights in CR are white.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

- Replace greenslens cover with a white one.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None i,

Team Approval Signature: Date:

( ) Additional page (s) attached A-63

o HED ASSESSMENT HED No. D4_02 EP = 6 TITLE: Panel Labels COMMENT: Panel labels are not consistently color coded.

Item: 3.4.2 Ref.: A4.2 Source: CRS l

IDENTIFICATION: Panel: All Component'Name: Panel Identification Label ID or Number: N/A DESCRIPTION OF PROBLEM:

Some panel labels are white, others are yellow. There appears to be no consistent convention in use.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Panel- label identifiers are being changed to be consistent in.

font size and label plate color. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached i A-64 ,

_ , - . . , , - ,m. . . _ _ , ,.-.- _ -

HED ASSESSMENT HED No. D4-03 EP = 6 TITLE: Mimic Color Coding COMMENT: Mimics are not consistently color coded.

Item:.3.4.3 Ref.: A4.2 Source: CRS IDENTIFICATION: Panel: 661,654 Component Name: Mimics ID or Number: 4 kv Bus and 220 kV Bus mimics DESCRIPTION OF PROBLEM:-

Yellow 1is used for'the=4 kv bus mimic, but is also used to denote the - 220 kv bus mimic. Should be a different color.

RESOLUTION: (Code: A) (Priority: N/A) -(Sched: Fuel Load )

A specific- color' specification for electrical bus voltages has

- been developed. This specification is being used during enhancement. . des'ign of appropriate panels. (See general discussion of enhancements.)

. TRAINING REQUIREMENTS:

Provide color-standards to training department.

PROCEDURE REQUIREMENTS:

None

-Team Approval Signature: -

Date:

( ). Additional page (s) attached A-65 h

HED ASSESSMENT HED No. D5-01 EP = 6 TITLE:. Indicator Light Label COMMENT:. Indicator light is unlabeled.

Item: 3.5.1 Ref.: AS.1 Source: CRS

. IDENTIFICATION: Panel: 654 Component Name: Indicator Light ID or Number: Above the Generator Ammeter Range Switch DESCRIPTION OF PROBLEM:

The indicator. light is not obviously associated with any- control and.is' unidentified by label. Its function is unknown.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

The . indicating light illuminates when ' low range' is . selected.

The switch below is a two position selector' switch. Enhancements will associate the light with the switch below.'

TRAINING REQUIREMENTS: None

PROCEDURE REQUIREMENTS:. See HED Pl-91.

4 6

-s Team Approval Signature: Date:

( ). Additional page (s) ' attached A-66 u:-

IIED ASSESSMENT l

HED No. D5-02 EP = 6 TITLE: Label Location f COMMENT: Labels have been switched.

Item: 3.5.2 Ref.: AS.1 Source: CRS

- IDENTIFICATION: Panel: 603 Component Name: Recorder Labels ID or Number: XRM-IR623, KR01-IR809 [

DESCRIPTION OF PROBLEM:

The labels on these two recorders have been inadvertently

- reversed.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load ) -

Resolved through reversing labels associated with hierarchal labeling. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None r

PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-67

y-

'1 HED ASSESSMENT HED No. D5-03 EP = 6

- TITLE: Component Labels COMMENT: Several components are unlabeled.

Item: 3.5.3 Ref.: A5.1 Source: CRS IDENTIFICATION: Panel: 601 Component Name: H 2 and 02 Systems, CTMT Isolation Mimic Devices, and RHR Loop A recorder ID or Number:-Same as Component Name DESCRIPTION OF PROBLEM:

There -are no labels identifying these components and their function. This is confusing.

RESOLUTION:. (Code: A) (Priority: N/A) (Sched: Fuel Load )

Components will be labeled. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None i

Team Approval Signature: Date:

( ) Additional page(s) attached A-68

7:

HED ASSESSMENT HED No. D5-04 EP-= 8 TITLE: System Labeling COMMENT: Labels.are not used to identify systems.

Item: 3.5.4 Ref.: AS.3 Source: CRS IDENTIFICATION: Panel: 00C-681,00C-650,651,652,653,668,670 Component Name: N/A ID or Number: Common throughout Control room DESCRIPTION OF PROBLEM:

' Systems and system designation labels are not used. This. causes difficulty in identifying proper controls and indicators.-

' RESOLUTION: (Code: A ) (Priority: N/A). (Sched: Fuel Load )

Resolved through the use of hierarchal labels. (See . general discussion of enhancements.) 00C-650 not included in CRDR.

i TRAINING REQUIREMENTS: _ -None PROCEDURE REQUIREMENTS: None-s Team Approval Signature: Date:

( ) Additional page (s) attached A-69

HED ASSESSMENT HED No. D5-05 EP =

-TITLE: Label Nomenclature COMMENT: Inconsistent use of nomenclature, acronyms, and

. abbreviations.

Item: 3.5.5 Ref.: A5.5 Source: CRS IDENTIFICATION: Panel: 00C-650,651,652,600,601,602,603, 647,648,668,681 Component Name: See att' ached list ID or Number: See attached list DESCRIPTION OF PROBLEM:

Many labels do not use-consistent abbreviations, acronyms, or nomenclature.

RESOLUTION: -(Code : A) (Priority: N/A) (Sched: Fuel Load )

Consistent nomenclature, abbreviations, and acronyms will be used based upon the approved list. This will be done in conjunction with' enhancements and the associated relabeling using hierarchal labeling. The word " volume" will be corrected on panel 650.

(See general discussion of enhancements.)

TRAINING REQUIREMENTS:

Provide approved nomenclature list to training.

PROCEDURE REQUIREMENTS: See HED Pl-01 Team Approval Signature: Date:

( ) Additional page(s) attached A-70

D5-05

" Reactor feed pump turbine" is sometimes shown as RFPT and sometimes as RPT, panel 651.

The word "volumn" is misspelled on the river broadcast speaker volume monitor, panel 00C-650.

Multiple;1 abbreviations for " valve" and " pump" are used on panel 652.

The nameplate next to PD196-120 is blank, panel 603.

The recirculation pump motor air cooling switch labels use different nomenclature, panel 681.

Recirculation. system legends inconsistently use lA or-1B or no system descriptor, panel 602.

Level control selector switch label should read "1 or 2 Element",

panel 603.

Heat exchanger condensate discharge pressure to RCIC, panel 601,

i. .has RCIC spelled "RICI" on label.

The device,.such as " valve" is sometimes included, sometimes not,

, on device labels, panels 601, 647, and 648.

l.

l Some inconsistency in abbreviations, panels 601, 647, and 648.

I.

Camponents of similar' function are labeled differently on panel 668.- Some switches are labeled feedwa ter heater drain to

- --feedwater heater, others are feedwater drain to feedwater heater.

The . process' radiation recorder for the H2-02 recombiner, panel 600, is labeled " Recommended".

i I

A-71 L

HED ASSESSMENT HED No. DS-06 EP = 8 TITLE: Hierarchal Labeling COMMENT: Labels are not size ceded.

Item: 3.5.6 Ref.: AS.7 Source: CRS IDENTIFICATION: Panel: All Component Name: Labels ID or Number: N/A DESCRIPTION OF PROBLEM:

No hierarchal system of size coding labels appears to exist.

' RESOLUTION: (Code: A ) ( P rid.' i ty : N/A) (Sched: Fuel Load )

Same'as D2-06.

TRAINING REQUIREMENTS: None

' PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-72

HED ASSESSMENT HED No. DS-07 EP = 9 TITLE: Label Visibility COMMENT: Components obscure labels.

i Item: 3.5.7 Ref.: AS.9 Source: CRS IDENTIFICATION: Panel: 647,648,661,668,669,670,00C-656,00C-671, .

00C-660 Component Name: N/A ID or Number: Common throughout Control Room DESCRIPTION OF PROBLEM:

Labels are not easily read due to control location and projecting device housings.

I RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Resolution ~ incorporated through hierarchal labeling enhancements and spatial placement. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date: ,

( ) Additional page (s) attached A-73

. - . . - - ~ .. .- ._ .-

_ - =- . -

t.

HED ASSESSMENT HED No. D5-08 i i

EP = 6 TITLE: Control Identification !

t

^

COMMENT: Controls are not completely identified. i i

[

' Item: 3.5.8 Ref.: AS.10 Source: CRS l t

i IDENTIFICATION:: Panel: 602 Component Name: Pushbuttons 3 ID or Number: Recirc. Run-back . Reset Pushbuttons ;

DESCRIPTION OF PROBLEM: I Pushbuttons are for different levels but labels do not specify '

.which levels.

t

. RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

All controls will be identified through. hierarchal labeling and proper equipment. identification. (See' general discussion of [

enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None I

t Team Approval Signature: Date:

( ) Additional page (s) attached A-74

~j

m HED ASSESSMENT HED No. D5-09 EP = 6 TITLE: Control Differentiation COMMENT: Switches are not differentiated properly.

Item: 3.5.9 Ref.: AS.10 Source: CRS IDENTIFICATION: Panel: 652 ,

Component Name: Low Pressure Condenser to Vacuum Pump Valve Switches ID or Number: HV07-133,134,135,136 DESCRIPTION OF PROBLEM:

Switches are only differentiated by device number, no proper label identification.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

All controls have been labeled by functional names as well as

-component numbers. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-75

HED ASSESSMENT HED No. D5-10 EP = 6 TITLE: Label Location COMMENT: Labels not located near associated insert.

Item: 3.5.10 Ref.: AS.ll Source: CRS IDENTIFICATION: Panel: 607 Component Name: Panel Insert Labels ID or Number: N/A DESCRIPTION OF PROBLEM:

Labels are located between panel inserts and are not clearly associated with either insert. Operator must view the entire panel to determine which insert is which.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Hierarchal labeling will be used to facilitate operator identification. Labels will clearly reflect the components with which they are associated. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-76

HED ASSESSMENT HED No. SDl-01 EP = 6 TITLE: Control Height COMMENT: Transfer switches are too low.

Item: N/A Ref.: Al.1 Source: SCRS Bl.1 B6.3 IDENTIFICATION: Panel: RSP Component Name: Transfer switches ID or Number: See below DESCRIPTION OF PROBLEM:

Bottom eight transfer switches are below the minimum height requirement of 22".

RESOLUTION: (Code: F) (Priority: 4) (Sched: N/A )

While transfer switches are low, these switches are infrequently used. When they are used to transfer control to the RSP they are manipulated in a controlled manner once, until control is returned to C.R. The location of these switches does not present

, operational problems and will remain as installed.-

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None i

Team Approval Signature: Date:

( ) Additional page (s) attached A-77 L

Yp-HED ASSESSMENT HED No. SD2-01 EP = 9

' TITLE: Demarcation / Mimics

- COMMENT: Minimal demarcation and no mimics used.

Item: N/A Ref.: A2.1 Source: SCRS A2.2 h A2.3 IDENTIFICATION: . Panel: RSP Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

There are no mimics and very few demarcation lines on the RSP.

. RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

The- Remote Shutdown Panel will be enhanced with mimics and grouping in the same manner as control room panels. (See general

- discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-78

HED ASSESSMENT HED No. SD2-02 EP = 6 TITLE: Use of Demarcation COMMENT: No demarcation around related displays.

Item: N/A Ref.: A2.2 Source: SCRS IDENTIFICATION: Panel: 673 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

Related displays are not grouped by demarcation lines or mimics.

RESOLUTION: (Code: A) .(Priority: N/A) (Sched: Fuel Load )

Components ~ on 'this panel have been functionally grouped and enhanced with demarcations and mimics.

(See general discussion of enhancements.)-

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-79 e

HED ASSESSMENT HED No. SD2-03 EP =

TITLE: Confusing Mimics COMMENT: Containment atmosphere control mimics are difficult to follow.

Item: N/A Ref.: A2.7 Source: SCRS TDA IDENTIFICATION: Panel: 601 - Containment Isolation and Atmosphere Control Component'Name: All mimics in this section ID or Number: N/A DESCRIPTION OF PROBLEM:

Initial mimics were changed by_ controls added in spaces available. The resulting mimics have become very confusing, very difficult to follow. Actual implementation of mimics in control room is incorrect.

RESOLUTION: (Code: A) (Priority: 2) (Sched: Fuel. Load (Enh))

1st Refueling (Relocation)

Eight switches will be relocated in order to allow better mimics which will be added as a result of enhancements. Four switches will be moved to the recombiner panel.

TRAINING REQUIREMENTS: Mod. Package PROCEDURE REQUIREMENTS: Mod. Package Team Approval Signature: Date:

( ) Additional page(s) attached A-80

HED ASSESSMENT HED No. SD2-04 EP = 6 TITLE: Annunciator Control Coding COMMENT: No apparent color coding of annunciator controls.

Item: N/A Ref.: SC2 Source: SCRS

-IDENTIFICATION: Panel: Various (see examples below)

Component Name: Annunciator Controls ID or Number: See below DESCRIPTION OF. PROBLEM:

Acknowledge, ' test, reset buttons are sometimes red, sometimes black, sometimes silver. No obvious coding convention appears to exist. Panel 673 uses a silver. key switch for " test", no other board does.- While an operator may be aware of the layout, during stress an inadvertent error may occur. Other boards often swap colors: ' red acknowledge button.with corresponding test and reset buttons'being either red or black.

RESOLUTION: (Code: A) -(Priority: N/A) (Sched: Fuel Load )

. Acknowledge button - yellow - palm-actuated Reset button - black - unguarded Test -button - black - guarded TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A

p[ :'

1

% A i

s HED ASSESSMENT s' -

HED No.s SD2-05

" ,. EP = 9 TITLE: ..AnnunciatorWindhwMatrices COMMENT: Annunciator. window positions are not identified in a

- matrix network. ,

- Item: eN/A Ref.:<SCl Source: SCRS V

c, ,

IDENTIFICATION: Panel: All- -

Component Name: Annunciator Panels ' '

~

ID or Number: N/A ,_ j o DESCRIPTION OF.. PROBLEM:

- The. anes of each annunciator panel a're..not marked with alphanumeric ' characters such- that'a sindew' location can be quickly identified. y ;

. f ,

RESOLUTION:- (Code: ,A)~ (Priority: N/A) ~ (Sched: Fuel Load )

, - - a ,, ./

An -alphanumeric matrix located L arbandit!he perimeter of the annunc.iator' wilP be us6d to identify the 'aiarms. (See HED Al-12.')

, . . s

, ~ ,'

j 2 ,

TRAINING, REQUIREMENTS: None ,

PROCEDURE REQUIREMENTS:- c' ,

1;

- Alarmf response cards to be changed to iriclude alphanumeric

. indexing. , i "

e, 7,e j f ,

+ Y m

Team Approval Signature: -

Date:

,,.s , -T y

. ( ) Additional page(s) attached f '

~' t e h .8 2 -..

l HED ASSESSMENT

~ ______________

HED No. SD3-01 EP = 6 TITLE: Control / Display Groupings COMMENT: Controls and displays are not grouped by system or function.

Item: N/A Ref.: A3.1 Source: SCRS A3.2 A3.3 IDENTIFICATION: Panel: RSP )

Component Name: N/A l ID-or Number: N/A i DESCRIPTION OF PROBLEM:

Same as comment above. .

l

)

RESOLUTION: (Code A:) (Priority: N/A) (Sched: Fuel Load )

Grouping and hierarchal labeling'has been designed for this panel.

(See general discussion of enhancements.)

~ TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None i-l Team' Approval Signature: Date:

( ) Additional page(s) attached A-83

~'

w s, - .

s <,.<

z-s -

HED ASSESSMENT N' ______________

HED No. SD3-02

~, ______________

,[ _

EP = m 6

~

TITLE: Control Height COMMENT: Some controls are too low for easy use. y Item: N/A Ref.: A3.6 Source: SCRS ~

Al.1 Bl.1 IDENTIFICATION: Panel: 673 Component Name: See below ID'or Number: See below DESCRIPTION OF PROBLEM:

"B Gycol temp Control" and " Vault 3 temp & fan control" are below "

minimum height requirements.

RESOLUTION: -(Code:-F) .(Priority: 4) (Sched: N/A. )

\

See HED D3-10.

1 TRAINING REQUIREMENTS: None. '

PROCEDURE REQUIREMENTS: None v-s.

s Team Approval Signature: '

Date: I

( ) Additional page (s) attached A-84 4

HED ASSESSMENT HED No. SD3-03 EP = 6 TITLE: Demarcation in display groupings COMMENT: No demarcation used to group related displays.

. Item: N/A Ref.: .A3.4 Source: SCRS IDENTIFICATION: Panel: 673 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

Demarcation should be used when'a string of six or more displays exists;-no demarcation is used.

RESOLUTION: (Code: A) _( Priority: N/A) (Sched: Fuel. Load. )

This. paneli has been enhanced per HED SD2-02. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None T

-Team Approval Signature: Date:

( ) Additional page (s) attached

- A-85

t HED ASSESSMENT HED No. SD3-04 EP =

TITLE: Improper Control Location COMMENT: Suppression Pool purca valve control not included in mimic.

Item: N/A Ref.: A3.2 Source: SCRS TDA IDENTIFICATION: Panel: 601 - Containment Isolation and Atmosphere Control Component Name: Suppression Pool Purge Valve ID or Number: Print no. 604 DESCRIPTION OF PROBLEM:

This control forms an important part of the mimic for nitrogen purge, but is located remotely, not as part of the mimic.

RESOLUTION: (Code: A) (Priority: 2) (Sched: 1st Refueling)

This control will be relocated so that it fits logically in the

. newly designed mimic.

TRAINING REQUIREMENTS: Mod. Package PROCEDURE REQUIREMENTS: Mod. Package-Team Approval Signature: Date:

( ) Additional page (s) attached A-86

r HED ASSESSMENT HED No. SD3-05 EP =

TITLE: Improper Control Location COMMENT: Steam reducer control is not grouped with associated system and controls.

Item: N/A Ref.: A3.3 Source: SCRS TDA IDENTIFICATION: Panel: 601 - Residual Heat Removal Component Name: Steam Reducer Switch ID or Number: S41A DESCRIPTION OF PROBLEM:

This control is remotely located, far away from the reducer indicating lights and other steam supply controls.

RESOLUTION: (Code: A) (Priority: 3) (Sched: Fuel Load )

The label and number on-this switch did not clearly identify the purpose of the switch. It will be relabeled to make its function clear. The-switch should not be grouped with the steam reducer.

TRAINING REQUIREMENTS: None PROCEDURE. REQUIREMENTS: None l

r Team Approval Signature: Date:

l l

( ) Additional page (s) attached l

A-87 L

HED ASSESSMENT HED No. SD3-06' EP =

TITLE: Improper Control Locatiod COMMENT: Out of Service Control is not located with similar controls.

Item: N/A Ref.: A3.2 Source: SCRS TDA IDENTIFICATION: Penel: 601 - Residual Heat Removal Component aame: Loop A Out of Service ID or Number: S64A DESCRIPTION OF PROBLEM:

Out of Service switches for Loops A and B are located at left edge of the RHR panel but the Out of Service switch for Loops B, C, and D are located with other Loops C and D controls. The switches for Loops A and B remote and not associated with the systems to which they relate.

RESOLUTION: .(Code: F). (Priority: 4) (Sched: N/A )

These controls should be relocated to be grouped with their associated indications in a grouping similar to like groupings on z: other. channels.

~

These controls are used for status information, no operational' consequences.

TRAINING REQUIREMENTS: Mod. Package PROCEDURE REQUIREMENTS: Mod. Package l

Team-Approval Signature: Date:

( ) Additional page (s) attached l'

A-88 L

I L

t HED ASSESSMENT HED No. SD3-07 ;

- EP = f

, i TITLE:- Meter Arrangements -

' COMMENT: .-RHR indicators not. located above the controls to which

theyLrelate.in proper grcupings. [

5 i; . Item: N/A Ref.: A3.3 Source: SCRS ,

TDA

l IDENTIFICATION: Panel: 601 [

Component Name: Residual Heat. Removal '

. ID or Number: .P-202,R604A-1,R613A,R607, R606A-1,R603,704-2 .

DESCRIPTION OF PROBLEM: ,

Al long ^ row' of meters intermix ~ functions so that they are not +

grouped. They'are not' located above their related. controls. ,

RESOLUTION: (Code: A) (Priority:_ 2) (Sched: 1st-Refueling)

This -row. of. meters will be rearranged so that they are in ;

functional -; groups- and are '.ocated above the controls to which-

'they relate.

{

TRAINING REQUIREMENTS: Mod. Package

^~

PROCEDURE REQUIREMENTS: Mod. Package ,

f r

t i

V i t Team Approval-Signature: Date:

J L ( ) Additional page(s) attached

[

r b :

. 8 Ii 1 A-89

HED ASSESSMENT t HED No. SD3-08 EP = 9 TITLE: Control Layout Consistency ;

COMMENT: Annunciator controls are not consistently laid out.

Item: N/A Ref.: A3.2 Source: SCRS TDA IDENTIFICATION: Panel: 603 Component Name: Annunciator Response Controls ID or Number: N/A DESCRIPTION OF PROBLEM:

Annunciator controls on panel 603 are laid out in a vertical pattern, while other boards use a horizontal pattern.

RESOLUTION: (Code: D) (Priori ty: . N/'. ) (Sched: Fuel Load )

Annunciator controls have been enhanced so that they are clearly distinguished from other controls. Because of the additional controls -required for this panel, there is no other practical arrangement possible for the annunciator controls. They are grouped vertically rather than horizontally. This is considered

. adequate and because of their frequent use will not cause confusion.

TRAINING REQUIREMENTS: .None PROCEDURE REQUIREMENTS: None 1

P P

Team Approval Signature: Date:

( ) Additional page (s) attached A-90

HED ASSESSMENT HED No. SD3-09 EP = 9 TITLE: Turbine Warmup Valves COMMENT: Appear to be on wrong panel.

Item: N/A Ref.: A3.1 Source: SCRS TDA IDENTIFICATION: Panel: 668 Component Name: HEATER 5&6 Drain Bypass, 4th Stage Bypass ID or Number: 599,600 (HV02-122ABC,HV02-ll4)

DESCRIPTION OF PROBLEM:

Their valves appear to be directly related to the turbine warmup controllers located on Panel 670 (HI-CO2-ll5,HI-CO2-120). If so, this location is unnecessarily difficult to find.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

These valves are not warmup valves. They are properly located.

They will be enhanced and labeled to indicate their proper function.

. TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-91

HED ASSESSMENT HED No. SD3-10 EP = 9 TITLE: Status Indicator Order

' COMMENT:- Indicators do not match the order of the control switches located directly below.

Item: N/A Ref.: A3.2 Source: SCRS TDA IDENTIFICATION: Panel: 668 ,

Component Name: Dump and Drain Status Lights ID or Number: 532-552 (print' t)

DESCRIPTION OF PROBLEM:

The . arrangement. of lights mix separator steam drains with feed heater drains. Consequently, the feed heater drain status lights do not'line up with the heater drain switches which are located directly below.

RESOLUTION: (Code: A) (Priority: N/A) -(Sched: Fuel Load )

The indicator lights and the switches below them have different functions and should-not be grouped together. The panel will be enhanced to separate and. identify the functions of each group.

TRAINING R8QUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signaturs: Date:

( ) Additional page(s) attached A-92

r.

HED ASSESSMENT

g. ______________

HED No. SD3-ll EP = 6 TITLE: Switch in Wrong Location COMMENT: Switch is grouped with other switches which have a different function.

- Item: N/A Ref.: A3.2 Source: SCRS TDA IDENTIFICATION: Panel: 668 Component Name: Steam Drain ID or Number: 598 (HV06-122/121)

DESCRIPTION OF PROBLEM:

This steam drain is associated with the Feed Pump Turbines but is grouped with the feed heater drains. The switch is not easily associated with the feed pump turbine switches.

RESOLUTION: (Code JL) (Priority: N/A) (Sched: Fuel Load )

Resolved by enhancement to group it with the feed pump turbine.

(See general description of enhancements.)-

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team' Approval Signature: Date:

I ( ) Additional page(s) attached A-93 1

HED ASSESSMENT HED No. SD3-12 EP = 6 TITLE: Order of Switches COMMENT: Switches are not in the expected order (left to right) .

Item: N/A Ref.: A3.2 Source: SCRS TDA IDENTIFICATION: Panel: 668 Component Name: Heater Drains ID or Number: 513-530 (print #)

DESCRIPTION OF PROBLEM:

Feed heaters are arranged from right to left, but are from left to right on panel 651.

RESOLUTION: (Code: F) (Priority: N/A) (Sched: N/A )

These- switches cre used to control condensate flow of drains through the shell side of feed heaters. This is a counter flow to the direction of feed flow througn the tube side of the heaters. Therefore, the direction of flow is properly from left to right as the switches are presently arranged. This arrangement is correct..

TRAINING REQUIREMENTS: None

PROCEDURE REQUIREMENTS: None i

! Team Approval Signature: Date:

( ) Additional page (s) attached i

A-94 1

~,

HED ASSESSMENT HED No. SD3-13 EP = 6 TITLE: Switch Indicating Lights COMMENT: Lights are not in expected order.

Item: N/A Ref.: A3.2 Source: SCRS TDA

-IDENTIFICATION: Panel: 668 Component : Feed Pump Turbine Stop Valves Test Switches ID or Number: 412-417 DESCRIPTION:

Convention' places Closed on left, Open on right. The valve indicating-lights have Closed (GREEN) on left, Open (RED) in the middle ~and Test (AMBER) on right.

AESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A -)

The indicated controls are test pushbuttons used only during start-up at less than 400 psi system pressure.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-95

HED ASSESSMENT HED No. SD3-14 EP = 6

. TITLE: Recorder Grouping

+

COMMENT: Recorders not grouped by functions.

Item: N/A Ref.: A3.2 Source: SCRS TDA

~

IDENTIFICATION: Panel: 669 Component Name: Conductivity and Temperature Recorders ID or Number: 402-404,407 DESCRIPTION OF PROBLEM:

The circulating water temperature recorder is placed between the condensate recorders. This interrupts grouping and is not the expected top to bottom order.

P.ESOLUTION: (Code: F) (Priority: 4) (Sched: N/A )

Recorders should be relocated so that they can be properly grouped with panel enhancements.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-96

r

' 4 HED ASSESSMENT HED No. SD3-16 EP = 6 TITLE:. Meter Grouping Sequence COMMENT: Meters are not arranged from left to right or in order corresponding to controls.

. Item: N/A- Ref.: A3.1 Source: SCRS A3.2 s

i IDENTIFICATION: Panel: 653 a Component Name: ' Moisture Separator Inlet Pressure C1, C2, Seal Steam Pressure, and Shell Pressure.

ID or Number:- 694,605,626,627 DESCRIPTION OF PROBLEM:

C1 and C2 meters are not arranged from left to right in the expected order,- and the order of the Steam and Shell Pressure meters does not conform to the order of system detector location points.

RESOLUTION:

-C1,C2:

(Code: F) -(Priority: 4) (Sched: N/A) s Seal Steam Pressure and Shell Pressure:

(Code: JL) (Priority: 3) (Sched: 1st Refueling)

Meters will be swapped to be in' proper-order.

TRAINING REQUIREMENTS: Mod. Package PROCEDURE REQUIREMENTS: Mod. Package Team Approval Signature: Date

( ) Additional page(s) attached A-97

c HED ASSESSMENT HED No. SD4-01 EP = 9 TITLE: Control Indication Light Colors COMMENT: Indicating light lens above switches are incorrect Color.

Item: N/A Ref.: A4.2 Source: SCRS IDENTIFICATION: Panel: 6b8 Component Name: Emergency Governor Controls ID or Number: 418,419,420 DESCRIPTION:

Indicating light lenses for Normal and Locked Out are Green and Red: convention requires these he White and Amber. Lights for Trip and Reset are Green and Red.

POSSIBLE SOLUTIONS: (Code A)

Change lens colors to conform to convention.

See attached.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

Lenses for Normal and Locked Out have been corrected. Lenses for Trip & Reset conform. ,

r TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-98

HED ASSESSMENT HED No. SD4-02 EP = 9 TITLE: Pushbutton Colors COMMENT: Colors used for pushbuttons are not consistent.

Item: N/A Ref.: A4.2 Source: SCRS TDA IDENTIFICATION: Panel: All Component Name: Guarded and Unguarded Circular Pushbuttons ID or Number: N/A DESCRIPTION:.

IPushbuttons use colors of red, yellow, green and black throughout the control room. The use of color is not consistent with function.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

See attached.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(1) Additional page(s) attached A-99 L_

s SD4-02 RESOLUTION Pushbutton Color Codes Pushbuttons throughout the control room will be colored using the following' color codes:

FUNCTION COLOR

1. Emergency Trip, RED Emergency Actuation

2. Reset WHITE

3. Acknowledge Alarm, YELLOW Bypass, Block

4. Stop, Shut (not emergency) GREEN

5. Test BLACK A-100

HED ASSESSMENT HED No. SD4-03 EP = 6 l

l TITLE: Indicator Light Color Convention COMMENT: Colors to be used on indicator lights associated with controls are not defined.

Item: N/A Ref.: A4.1 Source: SCRS TDA i

IDENTIFICATION: Panel: All i Component Name: GE ET-16 Indicating Lights ID or Number: N/A I DESCRIPTION:

Generally the uses of colors for indicator lights are consistent with a few exceptions.

RESOLUTION: (Code: A) (Priority: 2) (Sched: 1st Refueling)

Verify indicator lights consistent with convention. See attached. l TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None j i

~

l Team Approval Signature: Date

( ) Additional page(s) attached A-101

]

1 SD4-03 RESOLUTION Indicator Light Color Codes Indicator lights will use the following color codes: ;

FUNCTION COLOR l

1.

Stopped, Shut, Off, Breaker Open, Rod Out GREEN

2. Start, Open, On, Breaker Closed, Rod Out RED

3. Automatic Mode, Power Available, Condition WHITE Attained, Support System Available, System Ready (in normal sense), Permissive

4. Manual Mode, Abnormal Mode or Condition, AMBER Armed, Unlocked or Locked Out (in abnormal sense), Remote, Overload 1

A-102

r- l l

HED ASSESSMENT HED No. SDS-01 EP = 12 I TITLE: Operation Limit Labels l l

i COMMENT: No labeling of operational limits exists.

l i

Item: N/A Ref.: AS.2 Source: SCRS IDENTIFICATION: Panel: 673,RSP,00C-655 Component Name: All ID or Number: See below DESCRIPTION OF PROBLEM:

No labels are used to indicate operational limits or. warnings of controls / displays. !

l l

RESOLUTION: (Code:A) (Priority: N/A) (Sched: Fuel Load )

See HED I2-01.

TRAINING REQUIREMENTS: None 1

I PROCEDURE REQUIREMENTS: None )

I i

Team Approval Signature Date:

( ) Additional page(s) attached l

A-103

HED ASSESSMENT HED No. SDS-02 EP = 8 TITLE: Hierarchal Labeling COMMENT:.No hierarchal labeling exists.

Item: N/A Ref.: AS.7 Source: SCRS IDENTIFICATION: Panel: 673,RSP,00C-655 Component Name: N/A ID or Number: N/A -

DESCRIPTION OF PROBLEM:

Same as comment above.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Enhancements include hierarchal labeling. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-104

HED ASSESSMENT HED No. SD5-03 EP = 6 TITLE: Label Wording COMMENT: Labels have. excessive wording and are crowded.

Item: N/A Ref.: A5.10 Source: SCRS

' IDENTIFICATION: Panel: 673,RSP Component Name: N/A ID or Number: See below DESCRIPTION OF PROBLEM:

Labels are cros led and use excessive wording. Confusion could result'during operation 673 (temp / press indicators) .

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load _)

All ' components are relabeled. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approvcl Signature: Date:

( ) Additional page(s) attached A-105

HED ASSESSMENT HED No. SD5-04 EP =

TITLE: Confusing Terminology COMMENT: The exact meaning of " containment" is not clear from use on labels.

Item: N/A Ref.: AS.10 Source: SCRS TDA IDENTIFICATION: Panel: 601 - Containment Isolation and Atmosphere Control Component Name: N/A ID or Number: N/A.

DESCRIPTION OF PROBLEM:

The word containment is used in several places but is not consistently used. The enclosure that houses the Drywell and Suppression Pool is what other type plants call containment, however, the functions of containment actuation is more closely associated with the Drywell/ Suppression Pool boundary.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

A terminology list has been developed which clarifies the meaning of containment and is applied uniformly on all panels.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-106 i

HED ASSESSMENT HED No. SD5-05 EP = 6 TITLE: Power Supply Division Terminology COMMLNT: Inconsistency in method of identifying power supply divisions.

Item: N/A Ref.: AS.5 Source: SCRS AS.10 TDA IDENTIFICATION: Panel: Various N/A Component Name: ~ See below ID or Number:

DESCRIPTION OF PROBLEM:

Separate power supplies are sometimes identified as DIV 1 and DIV 2, but some are identified as A and B. In addition, some are four divisions 1,2,3 and 4, where 1 and 3, and 2 and 4 go togethar.

Some- are in 6 divisions. They become confusing and are not consistent.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Electrical divisions will be labeled using numerical designations vice-letters; mechanical systems will be designated per equipment identification scheme.

TRAINING REQUIREMENTS None

PROCEDURE REQUIREMENTS: None I

l i

Team Approval Signature: Date:

( ) Additional page(s) attached A-107 i

7 HED ASSESSMENT HED No. SD7-01 EP = 6 TITLE: Panel Location COMMENT: Panel removed from primary operating area.

Item: N/A Ref.: A7.3 Source: SCRS

?

- IDENTIFICATION: Panel: 673 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

The panel is located among Unit 2 panels, rather far from the Unit 1 operating area.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

The Chief Operator is responsible for the operation of the electrical and Of f Gas panels. His desk faces these panels and he has direct access to the panel- without obstructions.- The distance is not excessive. This is considered not to be a discrepancy..

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-108 h-

HED ASSESSMENT HED No. Il-01 EP = 3 TITLE: Controller Operation COMMENT: Insufficient hand space provided.

Item: 4.1.1 Ref.: Bl.5 Source: CRS 4

IDENTIFICATION: Panel: 603,652,647,648 Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

Insufficient hand space provided for hand support in the following cases: RFP speed controllers lA;lB;1C (panel 603)

Main steam to lA air ejector (panel 652)

Pump / discharge flow (panels 647,648)

RESOLUTION: (Code: A ) (Priority: 4) (Sched: N/A )

These are the primary types of controllers used throughout the control room. They use a thumb operated wheel to adjust the set point scale immediately beside it. Team members operated the controllers at all the stations where they are used. The characteristics of the adjustment are a firm motion that can be performed with either the finger or thumb, and the adjustment is relatively coarse. Consequently, it is not necessary to rest the hand to move the set point or'to obtain the desired' setting. We found a variety of acceptable positions for the hand while making adjustments. This is considered not to be a discrepancy.

TRAINING PROCEDURES: None D PROCEDURE REQUIREMENTS: None Team Approval Signature Date:

( ) Additional page(s) attached A-109

n_ _

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\

f. !

'" HED ASSESSMENT HED No. 12-01 i

'r . EP = 12 l l

~

TITLE: Indicating Devices - Zone Markings i

COMMENT: Indicating devices have no zone markings.

. ,- j Item: 6.2.1 Ref.: B2.1 Source: CRS IDENTIFICATION: Panel: All panels except 653'-

Component Name: All indicating except those noted below ID or Number: See. attached print l DESCRIPTION OF PROBLEM:

~

With the exception of turbine speed, oil tank level, and l generator hydrogen purity. indicators on panel 653, all other indicating devices have no markings to indicate safe / unsafe, l normal / abnormal,'oxpected/ unexpected range of operation. )

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load)

An Administrative procedure will be written.such that operators can make scale zoning modifications as operating experience is gained.

TRAINING REQUIREMENTS: ,

None PROCEDURE REQUIREMENTS: Write procedure.

I I

I l

Team Approval Signature Date:

( ) Additional page (s) attached ,

1 A-110

HED ASSESSMENT HED No. I2-02 EP = 9 TITLE: Recorders / Unit Specification COMMENT: Recorders have no process units specified.

Item 4.2.2 Ref.: B2.3 Source CRS IDENTIFICATION: Panel: 699,691,693,99C-624,99C-667 Component Names Indicating recorders ID or Number ~See attached prints DESCRIPTION OF PROBLEM:

There are no process units specified on the recorders on the panels.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

LNot on recorders at time of survey; all will be confirmed as construction is: complete and systems turned over.

TRAINING PROCEDURES: None PROCEDURE REQUIREMENTS: None Team Approval Signatures Datet

( ) Additional page(s) attached A-lli

n s 1

4 HED ASSESSMENT HED No. I2-03 EP = 6 TITLE: Indicator Scales COMMENT: Indicators are not scaled properly.

Item 4.2.3 Ref.: B2.3 Source: CRS

~

IDENTIFICATION: Panel: G47,648,670,602,653,696 Component Name: Indicating devices ID or Number: ' ice below DESCRIPTION OF PROBLEM:

Indicating devices are not scaled in units that relate to the operation of the system:

a. Pump suction pressure indicators (panels 647,648)

b. Main generator rotor temp (panel 670)

c. Recirc pump speed and demand speed (panel 602)

d. Low pressure turbine exit pressure indicators (panel 653)

e. Turbine speed (panel 653)

f. Reaction chamber temperature control indicator (Recombiner 696)

RESOLUTION: (Code: See Below) (Priority: N/A) (Sched: Fuel Load)

a. Scale will be renumbered in standard increments. Correct i RCIC indicator to be consistent with HPCI indicator. Code A

b. Enhancements will emphasize the centigrade scale. System measures degrees Centigrade, therefore indicator is scaled i properly. See general discussion of enhancements. Code A

c. The minimum speed of this pump is 28% and is indicated by a red.line. The scale covers the range of 18% to 102% and is considered to be satisfactory. Code B

d. Place horizontal line at zero point between engineering unit identifiers. Code B

e. Turbine speed recorder indicates RPM; it should be percent.

Will be changed. Code A ~

f. Not included in CRDR.

TRAINING PROCEDURES: None PROCEDURE REQUIREMENTS: None s

t

?

t-l Team Approval Signature: Date:

( ) Additional page (s) attached A-112

s.4 ;

i l

l t

HED ASSESSMENT HED No. I2-04 L EP = 6

I TITLE: Indicator Units j l

COMMENT: Indicators have no specified units. l Item: 4.2.3 Ref.: B2.3 Source: CRS IDENTIFICATION: Panel: 602,603,653 Component Name: Indicating devices i-ID or Number: See below DESCRIPTION OF PROBLEM:.

Indicators have no specified units:

Recirc. flow recorder (602)

Turbine oil reservoir (653)

Heat. flux indicators .(603) I i

- RESOLUTION: (Code: See Below) (Priority: N/A); (Sched: N/A ) f 693 - Heat Flux indicators are used for qualitative comparative (

. indication .where absolute engineering units have no operational ,

significance. Computer backup provided detailed engineering r information. (Code F) !

r

'692 - Corrected during construction., (Code A) 653 - Corrected during construction. (Code A) }

= TRAINING PROCEDURES: None ,

- PROCEDURE. REQUIREMENTS: None i

Team Approval Signature: Date: ,

t

( ) Additional page (s) attached ..

A-ll3

HED ASSESSMENT HED No. I2-05 EP = 6 TITLE: Indicator Visibility COMMENT: Pointers obscure unit graduations on indicators.

Item: 4.2.4 - 4.2.6 Ref.: B2.5 Source: CRS IDENTIFICATION: Panel: 670,647,600,653,602,603,654,661,00C-660 Component Name: Indicating devices ID or Number: See below DESCRIPTION OF PROBLEM:

Pointers obscure unit graduations on Bailey recorders (all), the generator watts recorder (670), turbine vibration recorder (647),

SJAE discharge recorder (lower scale) (600), turbine speed / control and hypass valve position recorder (653), cleanup filter demineralizer inlet pH recorder (602), IRM/APRM recorders (603), and the circular meters of panels 654, 661, and 00C-660 (EP - 4).

RESOLUTION: (Code: B) (Priority: N/A) (Sched: N/A )

All indicated devices were re-reviewed by team members. None were identified where the -total graticule was obscured or inhibited accurate reading or setting of the controller (see attached). This is not considered a discrepancy.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-114

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i A-115 I l

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HED ASSESSMENT I HED No. I2-06 EP = 4 TITLE: Control Arrangement COMMENT: Pushbuttons are not positioned in the expected manner.

Item: 4.2.7 Ref.: B2.7 Source: CRS IDENTIFICATION: Panel: 654 Component Name: Generator load adjust pushbuttons ID or Number: 90-G101A, 90-G101B DESCRIPTION OF PROBLEM:

Generator load adjust pushbuttons have increase on the lef' and

. decrease on the right. This is opposite of standard convention and the arrangement of similar pushbuttons on panel 653.

RESOLUTION: (Code: A ) (Priority: 3) (Sched: 1st Refueling)

Change pushbuttons to be consistent with 653 (i.e. Decrease on left, Increase on right).

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-ll6

HED ASSESSMENT HED No. I2-07 EP = 4 TITLE: Scale Consistency COMMENT: Indicators do not have identical scales to facilitate

-comparative reading.

Item: 4.2.8 Ref.: B2.8 Source: CRS 4.2.10 B2.10

~"

IDENTIFICATION: Panel: 668,654,602,655,652,600 Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

Drain cooler drain flow and-third stage heaters drain flow indicators (668), V/102-2 and V/101-2 (654), RWCU dump flow and inlet flow- (602), cooling tower makeup and blow down flow recorder (655), lA condensate pump ammeter and 1B and 1C ammeters (652), SJAE discharge recorders (600).

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

See attached. (RESOLUTION)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-117 t._ ___

I2-07 RESOLUTION

a. The comparative aspects are qualitative and not quantitative.

Since each recorder would indicate different qualitative value, ac a result of sensor location, making each scale the same would not facilitate comparison either. Each recorder scale should remain the same,

b. Meter 101-2 on 654 is missing scale numbers. These numbers will be added. Code A

c. Normal operating flow of dump indication is 0-150 gpm. To expand scale to 0-400 would result in lost resolution for normal range. Comparison is of a qualitative nature rather ,

than quantitative values. Control is based on tempera-ture rather than flow. This is not a discrepancy.

d. These two meters cannot he compared directly. One uses a 1000 multiplier, the other 100 multiplier. To expand the smaller to the size of the larger would not allow sufficient discrimination on the blowdown scale. Given the distinctly different ranges, it is better from a human factors viewpoint to have the scales distinctly different in numbers as well as multipliers. Code A

e. This has been corrected. Code A

f. Logarithmic scale provides gross indication, while linear scale provides a fine reading by use of range selector switch. Both are used in conjunction with each other. Any off scale readings on linear are alarmed. Range selection is a controlled, deliberate operation. Code A i

I l

i l

l l

f A-ll8

4 HED ASSESSMENT HED No. I2-08 EP = 4 TITLE: Indicator Alignment COMMENT: Indicators are not aligned to facilitate comparative reading.

Item: 4.2.9 Ref.: B2.10 Source: CRS 4.2.10 IDENTIFICATION: Panel: 670,654,602,00C-681 Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

Generator cooling system tem pe ra tu re , metal tempe ra ture , and thrust bearing temp. (670), 11 and 12 unit auxiliary bus circular meters. (654), RWCU'lA and 1B filter flow scales (602), heating and ventilating indicators (00C-681).

RESOLUTION: (Code: See below ) (Priority: See Below) (Sched:

See below) 602 - Corrected by design change. (Code: A) (Priority: 3)

(Sched: N/A) 670 - Not a' problem since concern is with trending information, not discrete values. (Code: F) (Priority: 4) (Sched: N/A) 654 - Present labeling is misleading. Meters to be relabeled to properly indicate their function. -(See general discussion of

- enhancements.) (Code: A) (Priority: N/A) (Sched: Fuel Load) 00C-681 - Indicators will be rearranged to facilitate comparative reading. (Code: A) (Priority: 3) (Sched: 1st Refueling)

- TRAINING PROCEDURES: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-119

T s

t HED ASSESSMENT HED No. I2-09 l EP = 4

-TITLE: Missing Scale Selector.

COMMENT: There is no apparent scale selector switch. l Item: -4.2.11 Ref.: B2.ll Source: CRS J

IDENTIFICATION: . Panel: 602- ~

Component Name: . Clean-up filter demineralizer inlet pH -

recorder ,

ID or' Number: AR23-170 i

DESCRIPTION OF PROBLEM:

. The cleanup filter. demineralizer inlet pH recorder has- two scales, but no selector switch apparent,. and it is not clear ,

which scale is to be used by the operator.

i RESOLUTION: (Code:.A ) (Priority: N/A) (Sched: N/A )

This is'a' single scale recorder,.therefore, no selector switch is i needed. ' Investigation has shown only one scale, therefore second.

scale has been removed.

TRAINING REQUIREMENTS: None 4

PROCEDURE REQUIREMENTS: None i

t Team' Approval Signature: Date: i

( ) Additional page (s) attached A-120

HED ASSESSMENT HED No. I2-10 EP = 6 TITLE: Intermediate Scale Graduations COMMENT: Excessive number of intermediate graduations between numbered markings.

Item: 4.2.12 Ref.: B2.12 Source: CRS IDENTIFICATION: Panel: See attachment.

"omponent Name: See attachment.

'-' or Number: See attachment.

DESCRIPTI'Oh JF PROBLEM:

The following indicating devices have more intermediate graduations than are recommended: (see attached sheet)

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

Scales reviewed and will be revised to be consistent with a standardized scale specification.

. TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

3 Additional pages attached A-121

I2-10 IDENTIFICATION Panel 670:

Millivolt meter, Generator Cooling System temperature, Metal temperature, Main Steam temperature, Thrust Bearing tempera ture Panel 668:

RFP Turbine Lube Oil tempe ra tu re , Thrust Bearing temperature Panel 669:

Condenser shells and hotwell conductivity Panel 601:

RHR loop flows Panel 600:

Area Radiation Monitor Panel 607:

Flux. probing monitor % power scale Panel 614:

All temperature recorders Panel 647 & 648:

Pump discharge pressure, Turbine supply pressure, Suppression pool level Panel 00C-624:

Area radiation monitor recorder Panel 602:

RWCU heater inlet pressure, RWCU 1A and 1B filter flow Panel 655:

Instrument air pressure, Service air pressure, Turbine building cooling water pressure and temperature, Reactor

building cooling water temperature t

l 1

l A-122 P

I2-10 IDENTIFICATION ;

Panel 652:

SJAE Indicators Panel 653:

A,B,C low pressure turbine stage 8 exit pressure, A,B EHC fluid pump amperes Panel 00C-600:

Safeguard transformer megavars, Station auxiliary switchgear megawatts, Start up bus megawatts.

Panel 654:

All transformer ammeters within the mimic, W/G101, A/X102, V/102-2 Emergency Shutdown Panel:

Both suppression pool levels (Unit 1,2), ESW discharge pressure.

i A-123 i

i

~

HED ASSESSMENT HED No. I2-11 EP = 3 TITLE:. Scale Subdivisions COMMENT: Indicators are scaled with incorrect decimal multiples.

I tem: 4.2.13 Ref.: B2.13 Source: CRS

. IDENTIFICATION: Panel: See attached Component Name: See attached ID or Number: See attached

. DESCRIPTION OF PROBLEM:

The following indicating devices are scaled with subdivisions .in decimal multiples other. than the recomended 1, 2, or 5. (See attached sheet)

RESOLUTION: (Code: A) Priority: N/A) (Sched: Fuel Load )

A detailed specification for-analog indicator gauge faces has been developed and will be used throughout the control room to correct indicators as appropriate.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(1) Additional page (s) attached A-124

i I2-11 Panel 670:

Generator cooling system temperature, Metal tem pe ra ture ,

Thrust bearing temperature, Thrust bearing wear Panel 600:

SJAS discharge recorder BR26-lR602 Panel 647 and 648: l Pump discharge pressure, Pump suction pressure, Turbine supply pressure, Suppression pool level.

Panel 603:

IRM/APRM recorders, IRM-APRM/ RPM recorders, Heat flux indicators, Standby liquid control discharge pressure Panel 00C-681: i SGTS heater and filter temperatures, A,B control room temperatures, SGTS carbon filter air temperature, Outside !

i air temperature Panel 681:

Nearly all indicators

-Panel 653:

A,B,C,D main steam line flow, Steam chest pressure, Pressure setpoints A & B, A,B,C low pressure turbine stage 8 exit pressure, A & B EHC fluid pump amperes. ,

Panel 00C-667:

A,B,C,D RHRSW pump ammeters Panel 654:

V/101-2, V/102-2, V/107 Panel 00C-693:

DC voltmeters Panel 602:

RWCU heater inlet pressure, RWCU 1A and 1B filter flow Panel 607:

Flux probing monitor % power scale Panel 655:

Instrument air pressure, Service air pressure, Turbine building cooling wate: pressure and temperature, Reactor building cooling water temperature Panel 00C-660:

Safeguard transformer megavars, Station auxiliary switchgear megawatts, Startup bus megawatts ;

Remote Shutdown Panel:

Suppression pool level (both units), ESW discharge pressure. -

A-125

HED ASSESSMENT HED No. I2-12 EP = 6 TITLE: Non-linear Scales COMMENT: Indicating devices use non-linear, non-logarithmic scales.

-Item: 4.2.14 Ref.: B2.ll Source: CRS B2.13 IDENTIFICATION: Panel: See attached Component Name: See attached ID or Number: See attached DESCRIPTION OF PROBLEM:

The following indicators have non-linear, non-logarithmic scales over some or all of their range: (see attached sheet)

RESOLUTION: ( Code : -. ) (Priority: ) (Sched: )

See attached TRAINING REQUIREMENTS:

Explain the design approach for selecting scale ranges and the meaning of a non-linear zero at the bottom (where used).

PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(1) Additional page (s) attached A-126 I

I2-12 IDENTIFICATION Panel 670: l

. Vibration phase angle Panel 601:

All ammeters Panel 614:

Recirculation drive and generator hearing temperatures Recirculation pump temperature RHR water temperature HPCI turbine and pump temperatures ADS safety / relief valve temperatures ,

t Panel 603:

CRD water pump motor ammeters lA and 1B CRD system, cooling water, and drive flows

-RFPT turning gear ammeters lA, 1B, 1C l

Panel 00C-681:

A, B control room temperature Outside air temperature Ammeters Panel 681:

A through H drywell cooling inlet and discharge air ;

temperatures (Photo #29)

Recirculation pump cooling inlet and outlet flow ,

I Recirculation-filter temperatures Drywell chiller ammeters Panel 653: -

Generator hydrogen purity Ammeters >

Panel 00C-667: ;

A, B, C, D RHRSW pump ammeters L RHR heat exchanger cooling water flows Panel 654:

I Ammeters and kilovolt meters Emergency Shutdown Panel:

}

RCIC pump discharge flow, both units i

l A-127

I2-12 RESOLUTION

a. Ammeters: All meters are alike. They show a linear range with a normal mid-scale reading. Each scale has a zero mark at the bottom to indicate de-energized. (Code: F) (Priority: 4)

(Sched: No Change)

b. Panel 00C-681: These temperature meters receive signals directly from non-linear thermocouples and cannot be made linear.

The non-linear scale is the same for all three indications and is satisfactory- for this use because they are used for comparative readings. (Code: F) (Priority: 4) (Sched: No change)

c. Panel 00C-667: The RHR heat exchanger cooling water flow indications will be changed to use the same scale. (Code: A)

Priority: 2) (Sched: 1st Refueling)

d. Emergency Shutdown Panel: The RCIC pump discharge flows will be- changed to use the same scale. (Code: A) (Priority: 2)

(Sched: 1st; Refueling)

e. All Other Meters Listed: All these meters were reviewed by the team and found to be satisfactory. (See general discussion of_ class solutions for displays.) (Code: F) Priority: 4)

(Sched: No change) l l

l A-128 i

HED ASSESSMENT HED No. I2-13 EP = 4 TITLE: Incorrect Numeral Orientation COMMENT: Numerals are not oriented in an upright position.

Item: 4.2.15 Ref.: B2.15 Source: CRS IDENTIFICATION: Panel: 607 Component Name: Flux probing monitor ID or Number: Flux-probing monitor DESCRIPTION OF PROBLEM:

Percent power and volt scales of the flux probing monitor do not have vertically oriented _ numerals.-

RESOLUTION: (Code: B) (Priority: N/A) (Sched: N/A )

Degree off vertical ~ not sufficient to cause operational difficulty. This is not considered a discrepancy.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-129

HED ASSESSMENT HED No. I2-14 EP = 4 TITLE: Scale Differentiation COMMENT: There is no differentiation between psi and vacuum scales.

Item: 4.2.17 Ref.: B2.18 Source: CRS IDENTIFICATION: Panel: 647, 648 Component Name: Pump Suction Pressure Indicators ID or Number: PIl50 - IR604 and PIl56 - IR606 DESCRIPTION OF PROBLEM:

There is no clear differentiation between psi and vacuum scales on the pump suction pressure indicators.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Place a horizontal line at zuzo point between engineering unit identifiers. (Same as I2-03)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-130

HED ASSESSMENT HED No. I3-01 EP = 8

-TITLE: Recorder Point Select Capability COMMENT: Multipoint recorders have no point select capability.

Item: 4.3.1 Ref.: B3.6 Source: CRS IDENTIFICATION: Panel: 614,670,668,669,00C624 Component Name: Multipoint Recorders ID or Number: See attached print DESCRIPTION OF PROBLEM:

Same as comment above.

RESOLUTION: (Code: B ) (Priority: N/A) (Sched: N/A )

The indicated recorders, while not having a positionable ' print select' capability, do have the ability to continuous print / monitor the point at which it is currently displaying.

This is accomplished with a two position switch inside the recorder door when placed in the ' indicate' position.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s)- attached A-131 L_

HED ASSESSMENT HED No. I3-02 EP = 4 TITLE: Incorrect Chart Paper COMMENT: Chart paper does not have correct scales.

Item: 4.3.2 Ref,: B3.7 Source: CRS IDENTIFICATION: Panel: 600,603,00C-624,00C-667 Component Name: Chart Recorders ID or Number: See below DESCRIPTION OF PROBLEM:

Service water, Radwaste cryogenic, Reactor building closed cooling' water, H2 -02 recombiner ventilation recorders (600);

Bailey recorders (00C-624); RFP turbine control' valve condition, steam and feedwater flow (603); and all recorders on 00C-667 have incorrectly scaled chart paper.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

This-HED was written during construction. All recorders will be provided with correct paper. New paper is stocked using that idantification number so that the correct paper is used.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached

-A-132

HED ASSESSMENT HED No. I3-03 EP = 4 TITLE: Recorder Pen Color COMMENT: Recorders have inconsistent or incorrect pen colors.

Item: 4.3.3 Ref.: B3.10 Source: CRS 4.3.5 note No. 4.3.4 in Summary Report IDENTIFICATION: Panel: 00C-667, 603 Component Name: Chart Recorders ID or Number: See below DESCRIPTION OF PROBLEM:

Pen ' colors are reversed on top two recorders; bottom two recorders both use black (00C-667). Also, the Leeds & Northrup

recorders on-panel 603 use green,- blue, and red pointers while the label identifies red, black, and green.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: Fuel Load )

667 - Bottom (lower) recorders are single pen, therefore, black pens are acceptable..

- Upper -recorders will be checked. for consistency with recorder pen color convention and will be corrected.

PEN 3 - TOP = GREEN 3 per recorder PEN 2 - MID = BLUE PEN 1 - LOW = RED 2 per recorder PEN 2~- TOP = RED PEN 1 - LOW = BLACK 603 - Label on recorder will be changed to indicate ' RED, BLUE, GREEN'.

. TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None iTeamfApproval_ Signature: Date:

( ) Additional page (s) attached' A-133

c; HED ASSESSMENT IIED No . I3-04 EP = 12 TITLE: Recorder Zone Markings t

COMMENT: No. zone markings appear on recorders.

Item: 4.3.6 Ref.: B3.15 Source: CRS !

IDENTIFICATION: Panel: All Component Name: Chart Recorders ID or Number: N/A DESCRIPTION OF PROBLEM:

None of the chart recorders appear to have zone markings indicating normal / abnormal, safe / unsafe, or expected / unexpected range of operation.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

e See HED I2-01 TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None i

Team Approval Signature: Date:

( ) Additional page (s) attached A-134

HED ASSESSMENT HED No. I4-01 s EP = 6 TITLE: Indicator Light Failure COMMENT: A failed bulb cannot be distinguished from a normal condition.

Item: 4.4.1 Ref.: B4.2 Source: CRS

4.4.2 IDENTIFICATION

Panel: See attached Component Name: See attached ID or Number: See attached DESCRIPTION OF PROBLEM:

For the following indicating lights it is not possible to '

-distinguish between a failed bulb and a normal light off condition (see attached sheet).

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: N/A )

See attachment. (RESOLUTION)

TRAINING REQUIREMENTS: None

~

f PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(1) Additional page(s) attached

.A-135

g._

I4-01 IDENTIFICATION RFPT zero speed lights, panel 603 RFPT: emergency governor trip lights and RFPT main bearing

-oil pump test lights, panel 668 ADS solenoid pilot valve B lights, panel 626 Generator ammeter range select switch.' indicating light, panel 654 Startup and trickle heat power on light, panel 696 Yellow alarm lights, panel 00C-696 I

i A-136

I4-01 RESOLUTION 603.- RPFT zero speed - no means to test, but at zero speed an alarm sounds if turning gear failed to engage; if bulb is not lit - it's burned out.

668 - These bulbs are only used in e test procedure during which

~

any bad bulbs would be identified.

626 - This light used in conjunction with square indicator above and acoustic monitor.

There are redundant sources of indication:

o 'Has Lifted' light (two bulbs) o Annunciator Alarm o White light-if Electric or Manual indication 654 - The indicating light illuminates when ' low range' is selected. Switch position provides positive indication, therefore if bulb is not illuminated in ' low range' position it has failed.

696 - Not included in CRDR.

A-137

f HED ASSESSMENT HED No. I4-02 EP = 8 TITLE: Lamp Test Feature COMMENT: No lamp test feature exists.

Item: 4.4.3 Ref.: E4.4 Source: CRS IDENTIFICATION: Panel: All Component Name: N/A ID or Number: N/A

~~

DCSCRIPTION OF PROBLEM:

There appears to be no available lamp test feature to diagnose failed indicator lights.

RESOLUTION: (Code: D ) (Priority: N/A) (Sched: N/A )

An overall lamp test is not necessary due to the following conditions:

o Safety Systems Normal position frll open/ closed valves with red or green light with redundant system indication.

o won-Safety 2 categories:

- Full /Open/ Closed - red or green light always lit; one light always lit - failure indicated immediately.

- Intermediate position under norir.a1 position -

secondary indication available to alert to a failed bulb via process indication, o Breakers Two position only - red or green indications; one light always lit.

o White and amber indicating lights (ECCS initiation status) have Annunciator alarm redundancy.

o Those other than the above are testable sockets.

TRAINIt?G REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team approval Signature: Date:

( ) Additional page(s) attached A-138

m HED ASSESSMENT

, HED No. I4-03 EP = 4 TITLE:-- Bulb Replacement COMMENT: Indicating light bulb replacement is difficult.

Item: 4.4.4 Ref.: B4.5 Source: CRS

- IDENTIFICATION: Panel: 90C-693 Component Name: Response Spectrum Analyzer ID or Number: Response Spectrum Analyzer DESCRIPTION OF PROBLEM:

The panel instrument insert must-be pulled-out and the bulb replaced from behind on the Responsef Spectrum Analyzer. This makes replacement difficult.

' RESOLUTION: (Code: F ) (Priority: N/A) (Sched: N/A )

This .is specialized equipment not maintained or. operated- by operations.. If a seismic event occurs, an audio alarm sounds in addition to the: light, therefore, . a failed bulb is not the.only-indication. Bulb replacem6nt is a-deliberate action performed by special technicians.

TRAINING REQUIREMENTS: .None PROCEDURE REQUIREMENTS: None E

. Team l Approval Signature: Date:

( ) Additional page(s) attached A-139

E c s s

HED ASSESSMENT t HED No. I4-04 EP = 6 TITLE: Indicating Light Alignment COMMENT: Sets of lights are not aligned to facilitate comparison.

Item: 4.4.5 Ref.: B4.6 Source: CRS

-IDENTIFICATION: Panel: 00C-681 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

Comparison between related system elements is difficult as the indicating light sets are not in alignment and some components are mixed. Further confusion results due to partial mirror imaging.

RESOLUTION: '(Code: D) (Priority: N/A) (Sched: Fuel Load )

The arrangement of controls and associated lights on the benchboard are partially mirror imaged for the control room- fans and their associated chiller units. However, the arrangement is orderly and consistent in pattern. This section will he enhanced and labeled to make relationships clear. There is no difficulty in comparing indicating light sets as enhanced. The partial mirror imaging is considered satisfactory in t'is configuration.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: -

Date:

.( ) Additional page(s) attached A-140 .

l HED ASSESSMENT HED No. I4-05 ,

EP = 4

' TITLE: Indicating Lights Reversed COMMENT: The indicating lights are reversed for switch HV02-ll3C.

t

~ Item: 4.4.6 Ref.: B4.6 Source: CRS IDENTIFICATION: Panel: 668 Component Name:-Indicating Lights ID or Number: HV02-ll3C DESCRIPTION:OF PROBLEM:

Same as comment above.

RESOLUTION: _ (Code: A') (Priority: N/A) (Sched: N/A )

, Corrected - lights in proper configuration.

l TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None- t t

l L -

. Team Approval Signature: Date:

l ( ) Additional page (s) attached i t

i A-141

HED ASSESSMENT HED No. I4-06 EP = 4 TITLE: Indicator Light Alignment COMMENT: Sets of indicating lights are not in alignment.

Item:.4.4.7 Ref.: B4.6 Source: CRS IDENTIFICATION: Panel: 603, Remote Shutdown Component Name: Indicating Lights ID or Number: See attached print DESCRIPTION OF PROBLEM:

lA and 1B level out of service lights are not above their selector switches (603) and RHR loop shutdown cooling suction valve. 2A and 2B lights are not aligned to facilitate comparison (Remote Shutdown).

RESOLUTION: (Code: A )- _(Priority: N/A) (Sched: Fuel Load )

Resolved through system enhancement.

603 - The lights are information only and not controlled by s adjacent switches. The relationship between switch and lights has been emphasized by enhancements.

RSP - Resolved through enhancement mimic flow.

(See~ general' discussion of enhancements.)

TRAINING REQUIREMENTS: None ,

PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-142

l,"

HED ASSESSMENT HED No. I5-01 t

EP = 6 TITLE: Control Movement

-COMMENT: Switches do not move in the expected direction (right =

start /open, left = stop/close).

~ Item: 4.5.1 Ref.: B5.1 Source: -CRS IDENTIFICATION: Panel: 651,654,607, Emergency Shutdown Component Name:- Control switches

-ID or Number: See below

. DESCRIPTION OF PROBLEM:

1 Reactor feed pump recirc. valve switches (651), Main steam.line safety / relief valve switches (Emergency Shutdown), Manual valve control switch (607), Exciter voltage regulator transfer switch l(654), Condensate. filter-demineralizer switches (651).

RESOLUTION: (Code: A ) (Priority: See attached) (Sched: See.

-attached)

See attached.

TRAINING REQURIEMENTS: None PROCEDURE REQUIREMENTS: None

~

. Team Approval Signature: Date:

( ) Additional page (s) attached A-143-

w I5-01 RESOLUTION

a. 651 - Reactor Feed Pump Recirc controls - corrected on switch. backing plate - word ' MANUAL' is incorrect terminology and will be changed to read 'OPEN'.

Priority: 3; Sched: 1st Refueling,

b. RSP - Change has been made to correct deficiency.

Priority: 1; Sched: Fuel Load

c. .607 - The red and green lights will be swapped to conform to convention. (Red on right, green on left.) Note labels below lights will be swapped to correctly identify open/ closed indication. Priority: 2 Sched: 1st Refueling

d. 651 - Spring return to center switch. To conform to convention 'on' position will be to right; stand-by to left.

Priority: 3; Sched: 1st Refueling

e. 654 - Exciter voltage regulator transfer switch is a knurled pointer with MANUAL & AUTO positions in a consistent configuration and not a discrepancy. (See I5-02)

Priority: N/A; Sched: N/A A-144

HED ASSESSMENT HED No. I5-02 EP = 6 TITLE: Position Labels Placement COMMENT: Position labels not consistently placed relative to switch.

Item: 4.5.1 Ref.: B5.1 Source: CRS IDENTIFICATION: Panel: All Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

Position labels are generally placed consistently relative to each other, but are not consistently placed with regard to the switch - the label "open" is often placed over the switch or to its right.

RESOLUTION: (Code: B) (Priority: N/A) (Sched: N/A )

Several combinations and arrangements of switches as a function of use exist. General conventions and configurations of position markings do exist. Exact position for a specific condition varies as a result of switch use. As a rule, OFF-CLOSE are to the left of OPEN or ON. CLOSE-AUTO-OPEN and AUTO-MANUAL are consistently arranged. Standby is usually between CLOSE and OPEN as is AUTO.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-145

e HED ASSESSMENT HED No. I5-03 EP = 6 TITLE: Switch Positions COMMENT: Switch positions are not clearly marked.

Item: 4.5.2 Ref.: B5.2 Source: CRS IDENTIFICATION: Panel: 601,654,653,651,00C-650 Component Name: N/A ID or Number: N/A DESCRIPTION OF PROBLEM:

- P/Bs for inboard and outboard valve control logic and testable check valve (601)

- Generator ammeter range switch (654), 220kv breaker synchro.

check relay selector switch (654), Steam seal evaporator extract steam test switch (653), Condensate Filter.

demineralization control switches (651), siren tone ' generator tone selector switch (00C-650)

RESOLUTION: (Code: A ) (Priority: See below) (Schedi~See below)

a. 601 - on HVS2-IF 006 A & B 'OPEN-CLOSE' escutcheon will be changed to read ' TEST.' Priority: 2; Sched: 1st refuel

b. 651 - Condensate filter demin (See I5-01).

c. 653 - The handle positions are installed per design and are spring return to a center position. To clarify switch setting two positions will be indicated on the switch backing plate NORMAL and CLOSE. Priority: 3; Sched: 1st refueling

d. 654 - Generator Ammeter Range - a 2 position switch low on left, high on right, which is acceptable and not a discrepancy. Relay Selector Switch is a two position keyswitch NORMAL / BYPASS, an escutcheon backing plate has been added to indicate positions.

Priority: N/A; Sched: N/A

e. 00C-650 - Paint arrow on handle white to better indicate position. Priority: N/A; Sched: Fuel Load TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A- 14 6

-- - >: y ,

HED ASSESSMENT HED No. IS-95 EP = 12 TITLE: Controls Below/Above Normal Reach Distances I _ COMMENT: Control switches are below/above normal reach distances.

Item:.4.5.4 Ref.: B5.3 Source:' CRS IDENTIFICATION: Panel: 600,670,648,607,661,668,601,00C-693, 00C-667, Remote Shutdown Component Name: See attached prints ID or. Number: See attached prints DESCRIPTION OF PROBLEM:

Indicated control switches are below normal reach distances. The

-RHR, head spray inboard isolation valve switch is too high on the Remote Shutdown Panel.

4 RESOLUTION: (Code: F) (Priority: 4) (Sched: N/A )

See HED-D3-10. '

4 TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature:- Date:

( ) Additional page (s) attached A-'14 7

4 c

i HED ASSESSMENT

______________ j HED No. I5-06 ;

EP = 6 TITLE: Control Near Console Edge COMMENT: Controls too near edge of console and can potentially f result in inadvertent operation. j Item: 4.5.5 Ref.: B5.4 Source: CRS IDENTIFICATION: Panel: 602,603 Component Name: lA Aux Lube Oil Pump (602), 1C RFPT Turning Gear Motor ID or Number: See above ,

- DESCRIPTION OF PROBLEM:-

1A auxiliary lube oil pump control (602), 1C RFPT turning gear motor switch (603) are located near the edge of the benchboards,

' but are not protected against inadvertent activation. [

RESOLUTION: (Code: A ) (Priority: 3 ) (Sched: 1st Refueling)

Install a hand rail at edge of console where controls are too i close to edge. Hand rail should extend no more than three inches '

from console edge.

603.- 1C RPFT Turn Gear mtr stopped running.

Switch #IC3 106 -

602 - lA-& 1B Auxiliary Lube Oil Pump Control ,

lA & 1B Recirc Loop Generator Drive Motor TRAINING REQUIREMENTS: None

- PROCEDURE REQUIREMENTS: None

, Team Approval Signature: Date: '

( ) Additional page (s) attached l

A-148 ,

(.

HED ASSESSMENT HED No. IS-07 EP = 9 TITLE: . Control Movement Difficulty COMMENT: Westinghouse " pull- to- stop" switches difficult to operate.

Item: 4.5.6 Ref.: B5.5 Source: CRS IDENTIFICATION: Panel: 652 Component Name: Westinghouse ' pull-to-stop' switches ID or Number: See attached print DESCRIPTION OF PROBLEM:

Same as comment above.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

Team members manipulated referenced controls. For these controls a compound motion (i.e., pulling and turning) is not the way they are used. Each motion is separate for specific reasons. None of the controls were found to be dif ficult to operate. This is not considered a discrepancy.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-149

HED ASSESSMENT HED No. IS-08 EP = 6 TITLE: Position Detents COMMENT: Rotary switches do not detent into each position.

Item: 4.5.7 Ref.: B5.7 Source: CRS I

IDENTIFICATION: Panel: 00C-681, other panels with similar switches Component Name: CR-2940 type thumbswitches ID or Number: N/A DESCRIPTION OF PROBLEM:

Some small rotary switches such as those on 00C-681 do not detent effectively in each position.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

Type CR-2940 has detents for each position. The switches have been manipulated by team members and found to have detents.

These switches.have been used at Peach Bottom for 10 years with no problem. This is not considered a discrepancy.

TRAINING REQUIREMENTS: None PROCEDURE REQUIRLMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-150

HED ASSESSMENT HED No. 15-09 EP = 6

. TITLE: Control Manipulation COMMENT: Switches are difficult to manipulate.

Item: 4.5.8 Ref.: B5.9 Source: CRS IDENTIFICATION: Panel: 655,668,00C-667 Component Name: Control switches (GE type)

ID or Number: See attached prints DESCRIPTION OF PROBLEM:

Switches- are located too close together to manipulate comfortably: Loop A and B service water and fuel pool pump switches (655); Reactor and turbine building cooling water switches (655); All switch arrays (668); Adjacent J-Handle key lock switches (00C-667).

RESOLUTION: (Code: B ) (Priority: N/A) (Sched: N/A )

Although switches may be close, their operation is infrequent, deliberate and individually manipulated. Team members manipulated identified controls and found them adequate.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None o

Team Approval Signature: Date:

( ) Additional page(s) attached A-151

(;;

HED ASSESSMENT HED No. 15-10 EP = 8 TITLE: Shape coding

' COMMENT: . No. physical distinction between switches for pumps, valves, etc.

Item: 4.5.9 Ref.: B5.10 Source: CRS IDENTIFICATION: Panel: 601,655 Component Name: _ Control switches (J-handles, T-handles, oval handels, etc.)

.ID or Number:-N/A DESCRIPTION OF PROBLEM:

'Same as comment.above.

RESOLUTION:. (Code: A ) (Priority: 3) (Sched: 1st Refueling)

Existing' convention for handle shapes versus application should be updated to- include T-handles which are not presently-mentioned. Controls ~ will be checked against conventions and changed where deviations' occurs to conform to convention.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-152

_ - - ~ _ _ . . _ . , _ _ _ _. ..

HED ASSESSMENT HED No. I5-11 EP = 4 TITLE: _ Control Handle Shapes Inconsistent COMME'N'T: - Controls are not shape coded consistently / convention-

-_ ally.

Item: 4.5.10 Ref.: B5.10 Source: CRS T

. IDENTIFICATION: Panel: 651,652,653 Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

Panel 653 pump switches are not J-handles as on other panels,

.also No. 3:and 4 control. valves below seat drain switches are not the same type. Panel 651' pump and open-close valve switches are

'different types. Panel 652 1A.and 1B SJAE first stage valve selector switches are difterent.

RESOLUTION: (Code: A ) (Priority: 3) (Sched: 1st Refueling)

All control handles will- be reviewed and changed per the updated convention. (See 15-10.)

TRAINING REQUIREMENTS: None

v. PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-153

r HED ASSESSMENT HED No. I5-12 EP = 4 TITLE: Position Visibility COMMENT: Switch knobs appear to obstruct position labels.

Item: 4.5.11 Ref.: B5.ll Source: CRS 4.5.12 IDENTIFICATION: Panel: 603,681,602 Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

Both RFPT control signal failure reset (603), and A & B reactor building recirculation fan and filter switch knobs (681) appear to obstruct the position setting labels. Rotary switches for lA and 1B scoop tube brake are raised such that position settings are obscured (602).

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

603 - RPFT - Signal Fail Lockout Relay - The flag is visible indicating position - the normal position is vertical facilitating visibility. The tripped position is left of center.

This is not a discrepancy.

681 - Five position switch, the white pointer is clearly visible, the only obstruction is when the switch is moved and the operator's hand is on the control. This is not considered a discrepancy.

602 -

lA/lB scoop tube is clearly visible and not considered a discrepancy.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-154

HED ASSESSMENT HED No. SIl-01 EP = 6 TITLE: Scale Differentiation COMMENT: Dual scale indicator difficult to read.

Item: N/A Ref.: SBl.1 Source: SCRS SBl.2 IDENTIFICATION: Panel: 654 Component Name: GE circular analog indicators ID.or Number: See below DESCRIPTION OF PROBLEM:

Dual scale generator phase is difficult to read as it has an A,B,C amp scale indicator.

RESOLUTION: (Code: A ) (Priority: 3) (Sched: 1st Refueling)

Indicator scale face will be improved using different colored~

scales and correlating scale color to selector switch position.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-155

HED ASSESSMENT HED No. SIl-02 EP = 9 TITLE: Scale Readability COMMENT: Small scale numerals inhibit scale readability.

Item: N/A Ref.: SBl.1 Source: SCRS IDENTIFICATION: Panel: 670

. Component Name: GE Turbine Test panel analog indicators ID or Number: All analog indicators DESCRIPTION OF PROBLEM:

Turbine control test panel and on shaft voltage test device have small numerals on scales. Difficult to- read from operator station.

RESOLUTION: (Code: B ) (Priority: N/A) (Sched: N/A )

These indicators are used during testing. The operator is close to the displays during test, facilitating readability. No change is considered necessary.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None i

(

Team Approval Signature: Date:

( ) Additional page(s) attached A-156 p

r-l 1

1 HED ASSESSMENT l HED No. SIl-03 EP = 6 TITLE: Scale Units COMMENT: Process units not specified.

Item: N/A Ref.: SBl.4 Source: SCRS IDENTIFICATION: Panel: 602 Component Name: Chart recorder ID or Number: CRSH23-lR601/lR603 DESCRIPTION OF PROBLEM:

The cleanup inlet and outlet conductivity scales have no process units specifi'ed. (These recorders appear not to be installed completely. )

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Process units for these recorders have been specified and will be verified.

o INFLUENT' IR601 .05-10 umhos/cm.

o EFFLUENT IR603 .05-1.0 umhos/cm TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None .

-Team Approval Signature: Dates

( ) Additional page (s) attached A-157 l

HED ASSESSMENT HED No. SIl-04 EP = 6 i

TITLE: Scale Unit Readability

. COMMENT: Drum counters difficult to read.

Item: N/A Ref.: SBl.6 Source: SCRS l

IDENTIFICATION: Panel: 602 Component Name: Drywell floor & equip DR SUMP drum counter i ID or Number: FQlS61-112/132 DESCRIPTION OF PROBLEM:

Small numerals on drum counter displays make it difficult to read them from the normal operator position.

RESOLUTION: (Code: B) (Priority: N/A) (Sched: N/A ) !

A redundant system. located on 00C-624 has been installed i providing primary'drywell leakage indication. The Drywell Floor and Drywell Equipment DR Sump drum counters are used as backups for verification of leakage, and the small numerals are not considered a problem.

L TRAINING REQUIREMENTS: -None-PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached

A-158

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r-HED ASSESSMENT HED No. SIl-05 EP = 6 TITLE: Multiple and Logarithmic Scales COMMENT:-Use of multiple and logarithmic scales excessive.

Item: N/A Ref.: SBl.2 Source: SCRS IDENTIFICATION: . Panel: 602,655,00C-624,669,607,600,654,667 Component Name: Chart recorders ID or Number: See attached prints DESCRIPTION OF PROBLEM:

Many recorders use multiple or logarithmic scales - these should be minimized. See attached prints.

RESOLUTION: (Code: .See (Priority: See (Sched: See below )

below) below)

Log scales are used' on -radiation recorders. This is the appropriate scale to use for radiation which is required to cover

, an extremely wide range. (Code: A) (Priority: N/A) (Sched: N/A )

The use of multiple scale recorders has been minimized. Where used, the team found them to be appropriate in order to compare trends in different parameters. (Code: F) (Pri: 4) (Sched: N/A )

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None 4

Team \pproval Signature: Date:

( ) Additional page(s) attached A-159

W v

1 HED ASSESSMENT HED No. SIl-96 3P =- 12

. TITLE: . Regulation Guide 1.97 Instruments COMMENT: Poet. accident. monitoring indication not clearly

- identified.

Item: N/A Ref.: B6.1 and Source: SCRS Reg. Guide 1.97 IDENTIFICATION: Panel: 652,679,693,699,692,626,691,647,667,624 &

648 Component Name: . Post Accident Monitoring Instrumentation ID or Number: See attached DESCRIPTION OF PROBLEM:

Instruments that--meet Reg. Guide 1.97 requirements are spread throughout^the control room. They should be distinctly marked so that- the operator can quickly identify them in post accident conditions.

RESOLUTION: (Code: A) (Priority: N/A) -(Sched:- Fuel Load )

~

Reg. . Guide 1.97 - indicators will be highlighted as part of the.

. overall control panel enhancement effort. ~(See general ~

discussion of enhancements.)

i TRAINING REQUIREMENTS: None f

PROCEDURE REQUIREMENTS: None i'

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?

i l- . Team Approval Signature: Date:

( ) Additional page (s) attached A-160

P SIl-06 LIMERICK REG GUIDE 1.97 INSTRUMENTS Indicator Variable- Indicator Location i

Suppression Pool Water Level LI52-140 A & B C626 3

Suppression Pool Water [

Tempera ture . T141-101,103 P626 ;

Condensate Storage Tank Level LR08-102,202. C652 l Core Spray System Flow FI52-lR601 A & B C601 l

Drywell-Pressure PI57-121 C601

~ Main Steam Line Isol.

. Valve. Leakage' Control System PI40-151 B,F,K,P & C626 PI40-lR656 Drywell Atmosphere Temp. TR57-122 C601 Primary-Containment &

Drywell' Pressure- PI42-101, PR57-101 C601 PR57-191(PEN 1)

Reactor. Coolant System Level XR42-lR623 H & B C601 (NOTE 2 & 5)

Reactor. Coolant System-Pressure PT42-103-A & B C601 (NOTE 2 & 3)

LPCI System Flow FI51-lR03 A,B,C,D C601 (NOTE 2)

.RHR! System Flow . FI51-lR03 A,B,C,D C601 (NOTE 2)

'Drywell Spray Flow ' FI 51-lR03 A ,B ,C, D C601 (NOTE 2)

Suppression Chamber Spray -FI51-lR03-A,B,C,D C601 Plow ~ (NOTE 2)

RCIC Flow FI49-lR600-1 C648 RHR SW' System Flow FI51-lR602 A & B C667 (Cooling.H O to ESF) . (Non-linear indicator)

A-161

(

SIl-06 Indicator Variable. Indicator Location RHR System, RHR SW Temp. TI51-105 A & B C601 (Cooling water to ESF comp.)

ESW Flow (Cooling water to Fill-013 A & B C667 ESF System)

Cooling Water System, Cooling Water Temp, to ESF TIll-007 A & B C667 System RHR Heat Exchanger Outlet Tempera ture TI51-127 A & B C601 HPCI Flow DFI55-lR600-1 C647 (NOTE 2)

Radwaste System, High Radioactive Liquid Tank Level LI62-010 00C303 (Equipment Drain Collection Tank)

Radwaste System, High Radioactive Liquid Tank Level LI63-001 00C303 (Floor Drain Collection Tank)

Radwaste System, High Radioactive Liquid Tank Level LI64-001 OBC 304 (Chemical Waste Collection Tank)

Containment O2 & H2 O AI 57-150-1,187-1 C600 Concentration H AI57-151-1,188-1 Drywell Floor Drain & LI61-ll5,135,161,162 P626 Equip. Drain Sumps Cond & FW System Main FRC32-1R607 C603 Feedwater Flow FIC32-lR604 A, B, C Main Steam Bypass Valve ZI01-105 A, B,C, C670 Position D, E, F, G, H, I Condenser Hotwell Level LR05-101 C652 Condenser Pressure ERFDS CRT Later A-162

r SIl-06 Indicator Variable Indicator Location Circulating Water Pump PIO9-ll7 A, B, C, D C652 Discharge Pressure Reactor Recirculation Flow FR43-lR614 C602 Primary Containment NA ERFDS CRT Inst. Gas CRD Hydraulic Changing PIS46-IN600 C603 Water Pressure RCS Soluble Boron ---- ----

Concentration SLCS Flow ---- ----

SLCS Storage Tank Level ERFDS is being ----

considered.

Type C: Prim. Containment RIX-26-191 A thru D RIX in Panel Area Radiation (Cat. 3) 00C691 Type E: Prim. Containment Area Radiation - High Range RR-26-171 A & B RR 10C600 (Cat. 1)

RMMS Display / Printer RMMS Display Devices in CR Consoles Type C: Containment Effluents a) RIX-26-076 a) 00C691 Radioactivity - Noble Gases b) RR-26-076 b) 00C624 (from identified release points) Cat. 3 c) RMMS Display c) Control Radiology / Meteorology Room Monitor System (located Consoles near Panel 00C675, behind Unit 1 Vertical Boards)

Type E: Noble gases and vent flow rate Commen plant vent for all releases (including SGTS)

Particulates and Halogens - all identified release points sampling with analysis capability.

A-163

I.

SIl-06 Indicator Variable Indicator Location Reactor Building or Secondary Local Indicating Local for station Containment Area Radiation Station, RMMS Display Control room for RMMS Radiation-Exposure Rate Station, RMMS Display Control room for RMMS I,

i i

A-164

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HED ASSESSMENT HED No. SI2-01 EP = 6 TITLE: Recorder Color Contrast COMMENT: Contrast between green and blue ink is poor.

Item: N/A. Ref.: SB2.2 Source: SCRS IDENTIFICATION: Panel: 00C-655 Component Name: Chart Recorder ID or Number: FR09-101 DESCRIPTION OF PROBLEM:

The ' blue. and green inks used on the cooling tower blowdown recorder are difficult to distinguish from each other.

RESOLUTION: -(Code: A ) (Priority: N/A) (Sched: N/A )

This situation is due to infrequent use of pens or pens that are' drying out. The recorder pens are felt-tipped and contrast is acceptable under normal situations. This discrepancy is due to the construction status of the control room.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page(s) attached A-165

(

t HED ASSESSMENT

_;- HED No. SI2-02 EP = 8 TITLE: Recorder Display' COMMENT: Recorders do not clearly display-information.

Item: N/A Ref.: SB2.1 Source: SCRS SB2.2

. IDENTIFICATION: Panel: 693,668 Component Name: Chart Recorders ID or Number: 693 (all recorders) , 668 (TRS19-114 )

DESCRIPTION OF. PROBLEM:

Multi-channel recorders do not clearly dis' play the channel being plotted (693). , RFP turbine lube oil-'and. thrust bearing temperattire . recorders ( 66 8 ) ~.

RESOLUTION: (Code: A) .(ptlority: N/A) (Sched: N/A )

A clear window:with~a, drum display on each recorder indicates the channel b~ef ng ' pririted. This is not a discrepancy.

v- ,

TRAINING REQUIREMENTS: ,

None 7 , ,

PROCEDURE REQUIREMENTS: None -

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Team,' Approval,Sjgnature:

Date:

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HED ASSESSMENT HED No. SI2-03

, EP = 4 TITLE: Scale Subdivisions f

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. COMMENT: Some scales have non-standard subdivisions.

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' Item: N/A Ref.: B2.13 Source: SCRS

- IDENTIFICATION: Panel: RSP Component Name:' Linear Analog Indicators ID or Number: See below DESCRIPTION OF PROBLEM:

Suppression pool-level scaled 0-15-30, etc.

Reactor level scaled +59, 9, -59, etc. .

Should be scaled in multiples of 1, 2, or 5. Note: Suppression Pool tagged for change.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

See HED I2-11.

t' TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None n

Team Approval Signature: Date:

( ) Additional page (s) attached i

A-167

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HED' ASSESSMENT

. -HED No. ST2-05 EP = 12

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TITLE: Indicator Zone Markings COMMENT: No. zones marked.on. indicators..

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4 Item: N/A Ref.: B2.1 S ource : - SCRS B3.15. 1 IDENTIFICATION: Panel: 673,RSP Component'Name: Linear Analog Indientors ,

ID or Number: See 'atta'ched pyint DESCRIPTION OF PROBLEM:

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Indicators- are not marked to show > normal / abnormal ~, safe / unsafe ranges of operations.-

RESOLUTION:. (Code:-A)' (Priority: N/A) .<

(Sched:: Fuel; Load -)

See HED I2-01.

, e TRAINING REQUIREMENTS:';None '

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PROCEDURE REQUIREMENTS: .None -~

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i i- Team Approval Signature: Date:

. ( ) Additional page(s) attached

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!,A-168-s

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e' HED ASSESSMENT HED No. SI2-06 EP = 4 TITLE: Scale Comparison COMMENT: Comparative reading of scales hampered by varying scales.

Item: N/A Ref.: B2.10 Source: SCRS IDENTIFICATION: Panel: 673 Component Name: Linear Analog Indicators ID or Number:-TI70-198A & B, PI70-lllA & B, TI79-303A, PI79-304A DESCRIPTION-OF PROBLEM:

-Have; scales. beginning. at 60 or at - 0 for pressure and temperature.

Appears difficult to compare readings. Operational normal readings must be investigated further.

RESOLUTION: (Code: A) (Priority:- 4) (Sched: N/A )

Scale. differences are due to.different parameters being indicated (i.e. Pressure and Temperature) . Normal range is 1/2 .to 2/3

-scale-range hence the 60 starting point for temperature. This is not a discrepancy. '

TRAINING REQUIREMENTS: None

[ .-

PROCEDURE REQUIREMENTS: None L

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L Team Approval Signature:- Date:

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(-) Additional page (s) attached L-A,169 C __

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HED ASSESSMENT [

HED No. SJ2-07 !

EP = 6 -

TITLE: Indicator Failure t COMMENT: Failure mode is not obvious on all indicators.

Item: N/A Ref.: B2.17 Source: SCRS I IDENTIFICATION: Panel: 673. ,

. Component Name: Linear Analog Indicators ID or, Number: Same as SI2-06 and CI69-155 j DESCRIPTION OF PROBLEM:

Several -indicators have no obvious failure indication, this 1 compounded by scale ranges.beginning at 60 versus 0 for temp !

indicators'and the conductivity indicator. i e

i (Code: A (Sched: Fuel Load RESOLUTION: )- (Priority: N/A) )

, All operational linear analog indicators fail off scale low. ,

Operators will be trained in this characteristic of failure mode.

TRAINING REQUIREMENTS:

' Training Operators as indicated above.

PROCEDURE REQUIREMENTS: None r

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Team Approval Signature: Date:

( ) Additional page (s) attached A-170

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HED ASSESSMENT HED No. SI2-08 EP = 6 TITLE: Controller Indicator Direction COMMENT: Drum rotation opposite thumbwheel motion Item: N/A Ref.: B2.7 Source: SCRS IDENTIFICATION: Panel: Those panels containing Bailey controllers Component Name: Bailey Controller ID or Number: See attached photo.

DESCRIPTION OF PROBLEM:

Rotation, of the drum with number is opposite the motion of the controlling thumbwheel. To increase, thumbwheel motion is up as it should be. The drum rotates down as the numbers increase.

This does not follow control movement and operator expectations.

RESOLUTION: (Code: B) (Priority: N/A) (Sched: Fuel Load )

The fundamental increase motion of the thumbwheel corresponds with a numerical increase on the drum (upward thumb motion causes increase in numerical values). The fact that the drum rotates counter to thumbwheel direction is not considered a significant detriment to operation of controller. To aid operators an arrow indicating ' INCREASE' will be placed next to the thumbwheel.

. TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-171'

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HED ASSESSMENT

. HED No. SI2-09 EP = 6 TITLE: Controller Open/Close Pushbuttons COMMENT: Open/Close pushbutton arrangement inconsistent Item: N/A Ref.: B2.7 Source: SCRS IDENTIFICATION: Panel: 670 Component Name: Bailey Controller ID or Number: TIC 10-124 (See photo), HI-CO2-ll5 DESCRIPTION OF PROBLEM:

In these two cases, the manual 'Open-Close' pushbuttons are arranged.with open on the.left and close on the right. -Assuming

. the scale indicates 0.- 100% and 100%-is open and 0%~ closed, this arrangement is wrong. In addition, the arrangement is inco'nsistent with another position indication of ' closed _on the left and open on the right.'

. RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

1Pushbuttons positions have been corrected and are in the correct configuration.

' TRAINING REQUIREMENTS: None +

PROCEDURE' REQUIREMENTS: None d

r' Team Approval Signature: Date:

( ) Additional page(s) attached i l:

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A-173 1 C E

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r HED ASSESSMENT HED No. SI2-10 EP = 8 TITLE:- Recorder Power Failure COMMENT: Recorder fail "as is" on loss of recorder power.

Item: N/A Ref.: SB2.1 Source: SCRS IDENTIFICATION: Panel: All with Recorders Component Name: Pen Recorders ID or Number: N/A DESCRIPTION:

Failure- of recorder power is not alarmed or indicated. Due to slow chart advance rates, cessation of chart motion is not a good indicator or loss of power.

RESOLUTION: (Code: A) (Priority: 3) (Sched: 1st Refueling)

Install a small power-available light on all recorders.

TRAINING REQUIREMENTS: Mod. Package PROCEDURE REQUIREMENTS: Mod. Package Team Approval Signature: Date:

( ) Additional page(s) attached A-175

~. _

HED ASSESSMENT HED No. SI2-ll EP = 3 TITLE: Scale Subdi _1,lons COMMENT: Indicators are scaled with incorrect decimal multiples.

Item: N/A Ref.: B2.13 Source: SCRS IDENTIFICATION: Panel: 00C-655 Component Name: Schuylkill Blowdown Makeup Pump Discharge A& B and Backup Service Air Receiver Scales Scales ID or Number: N/A DESCRIPTION:

Listed indicating devices are scaled with subdivisions in decimal multiples other than recommended 1,.2, or 5.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

See HED I2-11.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None l

Team Approval Signature: Date:

l l

( ) Additional page (s) attached A-176

7-HED ASSESSMENT HED No. SI3-01 EP = 12 TITLE: Alarm Point Identification COMMENT: No alarm

point identified on recorder.

Item: N/A Ref.: B3.3 Source: SCRS IDENTIFICATION: Panel: 673 Component Name: Chart Recorders ID or Number: See attached print DESCRIPTION OF PROBLEM:

Charcoal system vault temps recorder doesn't identify the alarm point. Other recorders appeared to have red tape on recorder

_ glass.to indicate alarm point. This seems too temporary to be a standard practice.

RESOLUTION: (Code: A) (Priority:. N/A) (Sched: Fuel Load )

See HED I2-01.

, _ TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None t

Team Approval Signature: Date:

-( ) Additional page (s) attached A-177

HED ASSESSMENT HED No. SI3-02 EP = 6 TITLE: Chart Paper Scale COMMENT: Incorrect chart paper Item: N/A Ref.: B3.2 Source: SCRS IDENTIFICATION: Panel: 673 Component Name: Chart Recorder ID or Number: TR70-124 DESCRIPTION OF PROBLEM:

Charcoal system vault temps recorder uses paper with different scale than on recorder.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

This HED was written during construction.

All recorders will be provided with correct paper.

See HED I3-02.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None I:

L Team Approval Signature: Date:

( ) Additional page (s) attached l

l l A-178

n HED ASSESSMENT HED No. SI4-01 EP = 4 TITLE: Key Switches COMMENT: Excessive use of key switches Item: N/A Ref.: SB4.2 Source: SCRS IDENTIFICATION: Panel: 603,626 Component Name: Key switches ID or Number: See attached prints DESCRIPTION OF PROBLEM:

There- appears to be an excessive numbers of key switches -

particularly on the stop check valves (603).

RESOLUTION: (Code: A) (Priority: N/A) (Sched: N/A )

a. The Standby Liquid control system on panel 603 uses key switches to prevent accidental injection of boron during shutdown. This is a legitimate use of key switches.

b. The MSIV Leak Control system on panel 626 is a normally de-energized system. However, it requires periodic testing while the reactor is at power. Since this system is connected to the main steam lines, key switches are appropriate to prevent high pressure steam from entering lines intended for low pressures.

TRAINING REQUIREMENTS: Wone PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-179 mm .

C

~

HED ASSESSMENT HED No. SI4-02 EP = 6 TITLE: Pushbutton Barriers-COMMENT: No barriers used with contiguous pushbuttons.

Item: N/A Ref.: SB4.1 Source: SCRS IDENTIFICATION: Panel: 00C-626 Component Name: Temp. monitor control ID or Number: See attached print DESCRIPTION OF PROBLEM:

Suppression' pool tempera ture pushbuttons are .small and contiguous, -but lack barriers between them to prevent accidental activation.

RESOLUTION: _( Code: - A) (Priority: N/A) (Sched: N/A )

The suppression pool . temperature monitoring system provides a keyboard to select different temperature- indications. The keyboard: is similar to a normal desk calculator and appears suitable for that purpose. There is no significant consequence of- inproper operation by pressing a wrong button. There is a

' clear' button for errors.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None

-Team Approval Signature: Date:

( ) Additional page (s) attached A-180

n.

HED ASSESSMENT HED No. SI4-03 EP = 4 TITLE: Indicator Light Failure COMMENT: No obvious method of diagnosing failed indicator lights.

Item: N/A Ref.: B4.4 Source: SCRS IDENTIFICATION: Panel: 673 Component Name: Indicating lights ID or Number: All DESCRIPTION OF PROBLEM:

Same as comment above.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: . N/A )

All.. indicator lights'have dual-bulbs for redundancy. A failed bulb would not result in a loss of indication, but would appear

' dim, thereby indicating the need to 1 replace failed bulbs.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

(-) Additional page(s) attached A-131 e

P' HED ASSESSMENT HED No. SI4-04 EP = 6 TITLE: Indicator Light Failure

. COMMENT: A failed bulb cannot be distinguished from a normal condition.

Item: N/A Ref.: B4.2 Source: SCRS IDENTIFICATION: Panel: RSP Component Name: See below ID or Number: N/A

-DESCRIPTION:

RCIC turbine trip RCIC turbine bearing oil pressure low RCIC high and low pressure bearing oil temperature high RHR heat exchanger-outlet radiation high RHR service water loop return radiation high

Bulbs are new, blue tag-tested, preop tested and safety tested.

Normally this panel is deenergized until control is transfered.

Failure within.lst refueling cycle is highly unlikely.. This RSP ,

room is controlled and locked at all times by supervisors.

RESOLUTION: (Code: A) (Priority: 1 ) (Sched: 1st Refueling )

The five lights indicated 'should be replaced with testable sockets. These lights are tested prior to operation. They are not on unless there is an emergency, so they would not burn out.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS:

Testable sockets on RSP should be tested after transfer and-stabilization are completed.

Team Approval Signature: Date:

( ) Additional page (s) attached A-182

I I

l

?

HED ASSESSMENT ,

______________ t HED No. SI5-01 EP = 4-TITLE: Label Obstruction COMMENT: Actuation of high controls obstructs labels.

Item:.N/A Ref.: B5.ll Source: SCRS t IDENTIFICATION: Panel: RSP '

Component Name: N/A ID or Number: See attached print DESCRIPTION OF PROBLEM: .

Operator. hand obscures labels when activating high controls.

RESOLUTION: (Code: A) (Priority: N/A) -(Sched: Fuel Load )

The placement labeling of this panel will rectify this ,

discrepancy. (See general discussion of enhancements.)

TRAINING REQUIREMENTS: See attached.

PROCEDURE REQUIREMENTS: None L

i l

i Team Approval-Signature: Date:

( ) Additional page (s) attached A-183 ,

p:

en-HED ASSESSMENT HED No. SI5-02 EP = 6

~ TITLE: Control Height COMMENT: Valve control too high.

' Item: N/A Ref.: B5.3 Source: SCRS IDENTIFICATION: Panel: RSP Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

RHR Headspray .Inhoard Isolation valve appears high for normal usage.

RESOLUTION: (Code: B ) (Priority: 4 ) (Sched: N/A )

Although this controllis high, it is infrequently used and when used- would be in a very deliberate, controlled situation. It is not considered a significant operation problem. (See HED Dl-01.)

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team: Approval Signature: Date:

( ) Additional page(s) attached A-184

g-.

HED ASSESSMENT HED No. SI5-03 EP = 6 TITLE: Control Actuation Consistency COMMENT: Control does not move in consistent / expected direction.

Item: N/A Ref.: B5.1 Source: SCRS IDENTIFICATION: Fanel: RSP Component Name: See below ID or Number: See below DESCRIPTION OF PROBLEM:

All valves on RSP move close/open except the Main Steam Relief Valve which moves open/close.

RESOLUTION: (Code: A) (Priority: 1) (Sched: Fuel Load )

The switch was correctly installed (electrically) ; escutcheon plate has been replaced with one having proper "open-close" indication.

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team Approval Signature: Date:

( ) Additional page (s) attached A-185 L

G . ~

HED ASSESSMENT HED No. SIS-04 EP = 6 TITLE: Control Movement p COMMENT: Switch does not move in expected direction.-

f Item: N/A Ref.:- B5.1 Source: SCRS

IDENTIFICATION

Panel: 673 Component Name: See_below ID or Number: HSS69-133

-DESCRIPTION OF PROBLEM:

Recombiner heater select switch moves "A - OFF - B - A&B" instead of'"A - B - AEB - OFF."

RESOLUTION: (Code: F ) (Priority: N/A)' (Sched: N/A )

This is against convention for a very specific safety . reason.

'If --A or B fails the switch is configured such that it does not permit travel through the failed heater position to turn the other . heater on. Tag-out procedures would prevent movement

~

.through failed heater position. This is not a discrepancy.

~

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None

. Team Approval Signature: Date:

( ) Additional page (s) - attached A-186 E-

I i

HED ASSESSMENT HED'No. SI5-05 ,

EP = 12 TITLE: Control Manipulation Fatiguing [

f COMMENT: -Pushbuttons induce excessive fatigue.

Item: N/A Ref.: B5.5 Source: SCRS f; i

IDENTIFICATION: Panel: 603 Component Name: Control rod insert, withdrawal, continuous l' insert and continuous withdrawal buttons.

ID or Number: N/A j DESCRIPTION:

Pushbuttons require single finger operation for extended periods ,

of time inducing-excessive fatigue.

i RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load- ) !

Replace .with palm actuated pushbuttons.

i

TRAINING REQUIREMENTS: None ,

-PROCEDURE REQUIREMENTS: None I

t Team Approval Signature: Date:

( ) Additional page(s) attached A-157 L -

HED ASSESSMENT HED No. SIS-06 EP = 9

~ TITLE: Switch Positions COMMENT: Switch positions are not clearly marked.

' Item: N/A Ref.: B5.2 Source: SCRS B5.ll IDENTIFICATION: Panel: 00C-655 L Component Name: N/A ID or Number: HV15-ll7/217

. DESCRIPTION:

Backup service-air distribution valves.

i.

RESOLUTION: -(Code: A ) (Priority: N/A) (Sched:-N/A )

This-is a four position control -' Unit 1, CLOSE, UNIT 2, UNITS 1

& 2. The black backing plate is clearly marked. There is backup indicating light directly above the control. .

This is not a

' discrepancy.

' TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None Team-Approval Signature: Date:'

( ) Additional page (s) attached A-188

ny HED ASSESSMENT HED No. SIS-07 EP = 4 TITLE: Position Visibility l

COMMENT:.-Oval handles appear to obstruct switch positions on

-backing plate.

Item: N/A Ref.: B5.11 Source: SCRS IDENTIFICATION: Panel: 00C-655 Component Name: .See below.,

ID or Number: HV15-ll7/217 DESCRIPTION:

- Oval handle appears to obscure settings on Backup Service Air-Control.

RESOLUTION: (Code: A ) (Priority: N/A) (Sched: N/A )

See'HED SIS-06 -

TRAINING REQUIREMENTS: None PROCEDURE REQUIREMENTS: None t

- Team Approvali Signature: Date:

() Additional page (s) attached 4

, 1 A-189

HED ASSESSMENT HED No. SIS-08 EP = 6 TITLE: Control Near Console Edge COMMENT: . Controls too near edge of console and can potentially result in inadvertent operation.

Item: 4.5.5 Ref.: B5.4 Source: SCRS IDENTIFICATION: Panel: 00C-655 Component Name:- See below.

ID or Number: See below.

DESCRIPTION:

Back-up service air' compression, back-up service distribution valves, and C-Sc,huykill make-up pump are located near edge of the benchboards,-but are not protected against inadvertent actuation.

RESOLUTION: (Code: A ) (Priority: 3 -) (Sched: 1st Refueling )

A. guard / hand rail will be installed to protect against inadvertant actuation. (See HED I5-06 and SI6-01.)

TRAINING-REQUIREMENTS: None PROCEDURE REQUIREMENTS: None

Team Approval-Signature: Date:

( ) Additional page(s) attached A-190 L

HED ASSESSMENT HED No. SI6-01 EP = 9 TITLE: Inadvet Activation COMMENT: Low swi, and valves not guarded against inadvertent activation.

Item: N/A .: B6.2 Source: SCRS i IDENTIFICATION: Panel: k.

Component Name: Lat s_ t ..taled pistol grip transfer switches ID or Number: See print DESCRIPTION OF PROBLEM:

Controls mounted excessively low on RSP may be accidentally-humped by. operator (saw it happen twice while there).

RESOLUTION: (Code: A) (Priority: 2 ) (Sched: 1st Refueling)

Install a flat stainless steel guardrail, approximately 1/8" x 2" along the length of panel at 38 inches from floor. The rail should be mounted 3"- away from the panel face to prevent inadvertent control activation.

TRAINING REQUIREMENTS: None i

PROCEDURE REQUIREMENTS: None The ; accidental bumping of transfer switches observed was -by construction personnel, panel was de-energized. This RSP is in a controlled access room. _

Team Approval' Signature: Date:

4.

( ) Additional page(s) attached A-191

m e

HED ASSESSMENT HED No. Pl-01 EP =

TITLE: Procedures and Training COMMENT: Update procedures and training to reflect enhancements on panels.

Item: N/A Ref.: N/A Source: SCRS IDENTIFICATION: Panel: All Component Name: N/A ID or Number: N/A DESCRIPTION:

Enhancements have relabeled most controls and displays as a result of implementing hierarchy labeling. Procedures must be updated to reflect new labels.- Training must he informed of new nomenclature and of enhancement approach.

RESOLUTION: (Code: A) (Priority: N/A) (Sched: Fuel Load )

Operations will be provided with the manual of standard nomenclature and abbreviations used in the enhanced control room.

Also, a list of names that have been changed substantially from the original control room labeling will be provided. Training will be provided with the manual of standard nomenclature and a description of the enhancement conventions'used.

TRAINING REQUIREMENTS:

Provide nomenclature and enhancement convention.

PROCEDURE REQUIREMENTS:

Provide nomencla'ture and list of major changes in labels.

Team Approval Signature: Date:

( ) Additional page(s) attached A-192

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-DESCF(IPTION OF PROBLEM: ' s "i

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-POSSIBLE SOLUT(ONS: s .? ';'~

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Remove $mber hulbs;\ use f orily" red and White bulbs. This, used in;

conjuriction with prioritizing sindows' and smatrix identifers, will

' facilitate window indEntification.

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RESOLUTION: , (fode )_. V g,g(Priority *

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HED ASSESSMENT HED No. I5_04 EP = 9 TITLE: Emergency Switch Position Markings COMMENT: Emergency .pushbutton switches have no obvious position markings for disarmed / armed position.

Item: 4.5.3 Ref.: B5.2 Source: CRS IDENTIFICATION: Panel: Various Component Name: Emergency pushbutton switches ID or. Number: N/A DESCRIPTION OF PROBLEM:

Emergency- pushbutton switches have a small red line on side of collars indicating position; this line is not readily apparent to the operator.

MITIGATING CONSIDERATIONS:

POSSIBLE SOLUTIONS:

See attached.

RESOLUTION: (Code ) (Priority ) (Sched: )

TRAINING REQUIREMENTS:

PROCEDURE REQUIREMENTS:

Approval-Signature: Date:

( ) Additional page(s) attached A-195

m . ._

V t' O 4..

~

HED' ASSESSMENT

< .HED No. SI2-04

\ A EP = 6 1.

TITLE:. ,

Indicator Glare -

-COMMENT: Glt.ccifrom ambient ~ lighting exists on higher indicators.

q ,. s a- ,

Item:-.N/A Re f, ,: B2 2 Sourcs: SCRS IDENTIFICATION: Panel: RSP" y Component Name: Linear Analog Indicators

~

"ID op Numbgr:'See attached print.

DESCRIPTION OF' PROBLEM:, . ~.

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- ~ . ,a 3 e f RESOLUTION: (Code: ? ) _ (Priority: , ) ; f(Sched : ' )

, , L: ..

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Permanent lighting nctiinstalled'at" time of_. surveying. A drop ceiling _with dif fused ligh' ting;is pisnned. It will be checked after permanent lighting is installed, f S '

_ ;/

' TRAINING REQUIREMENTS: ' u ,., ' ,. . 6~'

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HED ASSESSMENT HED No. SD3-15 EP = 9 TITLE: Control Location COMMENT: Manual Initiation pushbutton is not located near signal lock-in control.

Item: N/A Ref.: A3.1 Source: SCRS TDA IDENTIFICATION: Panel: 647,648 Component Name: Manual Initiation, Signal Lock-in ID or Number: 464,463,(647): 426,459,(648)

DESCRIPTION OF PROBLEM:

These controls appear to be related in the initiation of HP Injection and in. Reactor Coolant Isolation Cooling, but they are separated and grouped with isolation and turbine trip controls.

MITIGATING CONSIDERATIONS:

POSSIBLE SOLUTIONS: (Code A)

The pushbutton will be relocated to be with its functional group.

RESOLUTION: (Code ) (Priority ) (Sched: )

TRAINING REQUIREMENTS:

PROCEDURE REQUIREMENTS:

. Approval Signature: Date:

( ) Additional page (s) attached A-197

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I APPENDIX B BWROG

SUMMARY

REPORT i

e i

l

ML20092K946

Contents

Text

SUMMARY

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3.3.9 IDENTIFICATION

4.4.2 IDENTIFICATION

SUMMARY

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ML20092K946

Text

SUMMARY

=====================================================

3.3.9 IDENTIFICATION

4.4.2 IDENTIFICATION

SUMMARY

Navigation menu

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