ML20115G403

Control Room Design Review Program Plan Rept for VC Summer Nuclear Station

ML20115G403
Person / Time
Site:	Summer
Issue date:	04/15/1985
From:	SOUTH CAROLINA ELECTRIC & GAS CO.
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ML20115G390	List: ML20115G387 ML20115G403 ML20115G423
References
NUDOCS 8504220194
Download: ML20115G403 (56)

Text

. - c-ENCLOSURE-I CONTROL ROOM DESIGN REVIEW PROGRAM PLAN REPORT FOR THE VIRGIL :C. SUMMER NUCLEAR STATION Prepared By:

South Carolina _ Electric and Gas Company April 15, 1985 lDR 5 p PDR

e T AB LE OF CONTENTS SECTION PAGE 1.0 . INTRODUCTION 2 2.0 RESPONSE TO NRC COMMENTS 2 3.0 IMPLEMENTATION SCHEDULE 4 4.0 _ TASK ANALYSIS AND' VERIFICATION 4 5.0 CRDR FINDINGS AND RESULTS 5 APPENDIX A HED REPORT

SUMMARY

APPENDIX B HED REPORT

SUMMARY

FURTHER REVIEW APPENDIX C NUREG(0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

APPENDIX D HED REPORT

SUMMARY

, PARTIALLY CORRECTED HEDs i

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SUMMARY

' Over'the last five.(5) years'SCE&G has been'str.iving to

. comply. with control room gu idelines f or human f actors

- engineering.. To assist in this task Essex Corporation'was'

' contracted to . provide additional human f actors expertise and to conduct a detailed Control Room Design Review (CRDR).

As: a resu lt: of the 1980 preliminary -review of panel layout .and control display-integration, approximately 200 controls ~ and displays were relocated and panel demarcation / relabeled displays were added.

During the current' CRDR 333 Human Engineering

- Discrepancies-(HEDs) were identified as being deviations f rom gu idelines of _ NUREG 0700. 'These HEDs were evalu ated and

- dispositioned.by the HED review committee with 199 HEDs being corrected and the remaining 134 HEDs being dispositioned by justif ying an except' ion to the guideline.

In response to gu idance provided by NUREG 0737-Suppleme'nt 1 on_ CRDR for task analysis, SCE&G has contracted

~

o l Essex Corporation-to provide a task analysis and verification

. program as detailed in Sec. 4.0. This program will ensure that all plant specific information and control needs and characteristics have been identified and verify that required instrumentation and controls are available and compatible with.

operator needs.

Scheduled completion of the report on task analysis _ is December 31, 1985.

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1.0 INTRODUCTION

This report is in response to section 5.0 of supplement 1 to NUREG-0737 and to NRC comments on the CRDR program plan submitted to the NRC on October 28, 1983. The NRC comments were outlined in a Febru ary 15, 1984 letter from the NRC Staff to Mr. O. W. Dixon, Jr.

Program Plan Overview The CRDR program plan has been followed consistently.

However, due to NRC comments a deviation to the program plan was made in the area of system review and task analysis (SRTA). In response to the Staff concern that the SRTA program was not- plant specific, SCE&G contracted Essex Corporation to_ provide a plant specific task analysis and

. verification program. This program is discussed in section 4.0.

2.0 RESPONSE TO NRC COMMENTS This section addresses the NRC comments on the CRDR program plan.

2.1 Management and Staffing Overview Management and staffing of the CRDR project is discussed in. detail in-section 3.0 of the program plan report.

The following statements are in response.to NRC comments' to the CRDR program plan.

SCE&G's Human Engineering Program Manager (HEPM) is an engineer in SCE&G's Technical Services Department. Other nuclear engineering and risk analysis personnel have been made available on -an as needed basis.

Leadership assignments for specific review tasks were made in accordance with personnel experience and background.

Review efforts are based upon close coordination and cooperation between appropriate plant operations, engineering and human f actors personnel as suggested in NUREG-801, 2.2 Function and Task Analysis In response to the Staff comment on the SRTA program as being generic and not plant specific, SCE&G has ' contracted Essex Corporation to provide support f or a task analysis and verification program. This plant specific program will insure that all information/ control requirements are identified and verify that requ ired instrumentation and controls are available and compatable with operator needs.

2.3 Control Room Inventory The control room inventory prepared by the architect-engineer lists control room components such that equipment availability and suitability can be verified.

Display sheets describe or illu strate parameter type, dynamic range, saf ety grou p, system, qu alif i c at i on s , accu racy, etc.

Control sheets describe or illustrate type of control, discrete or continuou s, saf ety class, qu alification, id en tif i cat ion , etc.

2.4 Control Room Survey In the preliminary control room design review, panel l ayou t and control display integration were given carefu1 consideration. As a resu lt, over 200 controls and displays were modified by panel demarcation / relabeling, relocating and/or rearrangement.

During the current review, panel l ayou t and con-trol-display integration were again given careful consideration. Some of the panel l ayou t and control-displays integration concerns are addressed in the convention survey.

The remaining concerns were addressed during the CRDR verification of task performance capabilities. Qu estions on panel l ayou t and control-display integration relate most properly to verification of control-display suitability for performance of required operator tasks.

2.5 Assessment of HEDs The consequences of all HEDs,. including those of low potential for degrading performance, were assessed relative to safety importance.

Extent of deviation f rom guidelines is not an overriding consideration in HED assessment. It was not used to justify partially correcting or not correcting HEDs without considering the probability of error or the consequences of such an error.

2.6 Selection of Design Improvements The strategy for selection of design improvement has satisfied NUREG guid ance. HEDs were first assessed for correction by enhancement. If enhancement did not fu lly correct the HED, then the HED was analyzed for correction by design alternative. Trade-of fs were considered between correction by enhancement and correction by design alternative. The most appropriate approach to the correction was then selected. This is consistent with the process

, ou t li ned in the program plan.

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The preliminary process for design selection described in the program plan does address each HED independently.

However, HED meetings have been held in which HEDs were resolved in relation to each other and to other improvement programs, thereby assuring a consistent, integrated and complete operator-machine interface.

2.7 Verification that Improvements Provide Correction and Do Not Result in New HEDs To assure that improvements provide correction and do not resu lt in new HEDs, improvements were designed with i n pu t f rom SCE&G operations and engineering personnel as well as human f actors experts. Applicable human f actors literature has been used for guidance.

Once designed, human f actors improvements were considered for suitability in terms of compliance to appropriate NUREG-0700 criteria and in terms of their relationship to other control room improvements as well as other improvement programs (e.g., SPDS, operator training, Reg. Guide 1.97, and upgraded emergency operating procedures).

2.8 Coordination with Other Programs The process of integrating CRDR activities with other

. improvement programs (e.g. SPDS, operator training, R.G. 1.97 and E0P u pgrade) were addressed during HED review meetings.

3.0 IMPLEMENTATION SCHEDULE All currently identified HED modifications are schedu led to be completed by startup following the third refu eling ou tage. This is based on a 12/31/85 completion of the SRTA report. _SCE&G's position is that the SRTA resu lts shou id be integrated with the resu Its of the previous CRDR effort prior to implementation of design modifications.

On-line modifications will be worked after the completion of the SRTA report given availability of material, manpower and engineering lead time.

4.0 TASK ANALYSIS AND VERIFICATION PROGRAM (SRTA) 4.1 Essex Program Description The task analysis program is a descriptive process which extracts generic operator action and information requirements from system function data (as presented by the Westinghouse Owners Grou p (W0G) Emergency Response Guidelines (ERGS) and background documents). These generic requirements are converted to a plant-specific level, and the resu Its are d ocu men ted in an auditable, tabu lar format for use as inpu t into the verification process.

The process is organized into six major activities which are:

'l) Develop a list of tasks from the WOG ERGS;

2) Generate a list of generic actions and information requirements for each task, organized by task for the ERG's and the Function Restoration Guidelines (FRGs) See Figure 1;

3) Convert the generic list to a' plant specific list;

4) Reorganize the listing so that action requirements of. a given type and information requirements of a given type are collected together. Type refers to a group of actions-or informational requirements which have the same system, plant component and parameter (See Figure 2); 5)

Summarize each action type and each information type in list form;

6) Compare the summary requirements to the existing control room design.

4.2 Process for Verifying Results Utilizing plant-specific documentation, control room simu lator, etc., complete the Verification Summary block on each Action-Information Requirements Summary ( AIRS) form by indicating the existing control room instrument or control identification number for that instrument which fu lfills the action information requirements listed. In some cases, more than one instrument will be used to satisfy a set of requirements (e.g., wide and narrow range pressure indicators). Enter the control board panel number to indicate the location for that in s tru men t. Check the " Pass" column if existing instrumentation fu lfills the action-information requirements or the " Fail" column if it does not. In the case of " Fail", a Human Engineering Discrepancy (HED) report will be generated for review by the CRDR Review Team.

5.0 CRDR FINDINGS AND RESULTS-5.1 General There have been 333 HEDs identified during the CRDR that do not fu lly comply with NUREG-0700 gu idelines.

5.2 Disposition of HEDs The disposition of these HEDs will be addressed in two ways:

' Fully correct (199 HEDs) to comply with NUREG-0700 as described in Appendix A and Appendix B

' Justify a guideline deviation (134 HEDs) as described in Appendix C and Appendix D

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. e 5.3 Summary of HED Listed below is a summary of -the types of HED problems that are to be corrected and the number of each type.

5.3.1 Main Control Board Labeling 26 Demarcation 6 Scaling 18 Design / Enhancement 26 Adjustments 2 Removal 3 P intenance 9 1 raf fic/ Noise 6 Administrative Control 18 Abbreviation 9 5.3.2 Computer System Operating Manual 6 Display Correction / Enhancement 16 Feedback 5 Training 6 Security Access 2 Prompts 2 5.3.3 HEDs Miscellaneous 5 5.3.4 HEDs Corrected 28 5.3.5 HEDs Requiring Further 6 Reviews 5.4 HED Problem Description The following paragraphs detail types of HED problems that are being corrected.

5.4.1 Main Control Board Labeling

• Temporary labels replaced by permanent l ab e ls

• New labels added to aid understanding

• Relocate existing labels to improve identification

• Replace labels with a standard abbreviated label Demarcation 'This category covers modification of demarcation lines and mimics Scaling ' Change f rom indicated (flow or level) to (%) percent

• Range change

• Incorporate consistent scale g radu ations l

I Design / *This category covers dispositions Enhancement ' that requ ire, rewiring, relocating, rearranging, removing or adding new equipment to the control board.  ;

Removal *This category covers the relocation of less essential equipment off the control board. This will reduce the potential for operator error.

Adjustments ' Modify alarm setpoints to improve -

operator response capabilities Traffic / Noise ' Modification required to reduce control / room traffic & noise.

Maintenance ' Repairs for defective or inoperable equipment.

' Improved preventative maintenance Administrative ' Develop and implement procedures HED that wou id correct identified HED Abbreviation 'This HED category covers deviations f rom the approved abbreviation list.

5.4.2 Computer System '

Operating Manual *This category addresses HEDs that require the TSC computer operators manu al to be updated or revised.

Display *This category addresses software Correction enhancement required to correct or Enhancements rearrange the display format or program. i

• !mproved special function formats.

Feedback *This category covers HEDs that require improved feedback to the operator.

Training *This category covers HEDs that requtre additional training with the revised operators manual.

S ecu r ity 'These HEDs require software ,

modification to protect computer data f rom unauthorized assess.

Prompts *HEDs that require improved operator prompts on the display.

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t 5.4.3 HEDs Miscellaneous This category addresses HEDs that do not fit readily into any other category.

5.4.4 HEDs Corrected This category addresses identified HEDs that have been corrected between the time of this report and the initial survey.

5.4.5 Further Review

This category addresses open items under investigation.

These HEDs have been approved by the HED Review Committee and will be corrected af ter additional evaluation i s completed.

(See Appendix B)  ;

5.5 NUREG-0700 Guideline Deviation All identified HEDs are being evaluated for safety significance. Justifications for NUREG 0700 guideline deviation are given in Appendix C for the 124 HEDs that are being left uncorrected. Justification for the HEDs partially corrected are given in Appendix D.

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APPENDIX A PAGE 1 HED REPORT

SUMMARY

MAIN CONTROL BOARD LABELING CORRECTION HED Title Review Disposition Number 0.1-5 Poor Control Design Modify labeling to clarify functioning.

0.1-8 Proximity / Similarity Relabeling

, of Related Controls 4.1-14 Control Positions Not Will be labeled.

L ab e l ed 4.1-15 Control Position Will add position " tick" mark and color coding to labels.

Will add white notch for high up detector knobs.

5.1-49 Equ ating Trends to Labeling will be modified to Actu al Readings include parameter identification on recorders.

I 6.1-5 Legibility of Labels will be replaced by Annunciator Control labels with black lettering Labels on a white background.

6.1-17 Indicator f alsely All PAMs equipment will be labeled as being Post properly labeled.

Accident Monitoring Equipment 6.1-20 Component Labels f or "HYOR0" will be changed to Rotary Controls Use "EHC" or "HYD". Labels will Wrong Abbreviations be added to describe the function of pushbuttons.

6.1-34 Incorrect Color Coding Label will be changed to N.I. Lab e l orange.

6.1-40 Labeling for Trend Chart recorder paper Recorder <

identification labels will be corrected 6.1-42 Possible Inconsistent Labels changed as necessai/.

Labeling Between Similar Components i

6.1-43 Label Style Problematic Fou r components eff ected will be relabeled with NUREG-0700 l

guidelines i

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APPENDIX A PAGE 2 HED REPORT

SUMMARY

MAIN CONTROL BOARD LABELING CORRECTION HED Title Review Disposition Number 6.l~-45 Improper Labeling-Use New labels will be made for of Lower Case Letters the component.

6.1-46 Labels Needed Labels will be added as recommended.

6.1-47 Unlabelled Recorders Labels will be added to recorders as recommended.

6.1-51' Component Identification Relabeling will be conducted.

6.1-56 Label Contrast Some equipment will be r e l ab e l ed . Other labels will be cleaned.

6.1-57 Temporary Labels Temporary labels will be replaced by permanent labels.

6.1-58 Matrix Demarcation A legend will be added to explain points for instrument loops.

6.1-60 Redundant Labeling Radiation Monitoring Panel is to be labeled appropriately.-

6.1-61 Proximity Panel will be relabeled.

6.1-63 Functional Grou ps: Relabel Radiation Monitor Location System Panel 6.1-64 Erroneous Labeling Labei will be re-engraved using correct nomenclature.

6.1-65 Extraneou s Inf ormation Unnecessary nomenclature will be removed 7.1-80 Consistent Terminology Alarm tiles will be rewritten / replaced.

APPENDIX A PAGE 3 HED REPORT

SUMMARY

MAIN CONTROL BOARD LABE LING CORRECTION HED Title Review Disposition Number 7.1-117 Component Identification The " Alarm" and " Trend" typewriters will be lab e led and the CRTs will be identified as either BOP or NSSS.

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APPENDIX A PAGE.4 HED REPORT

SUMMARY

MAIN CONTROL BOARD DEMARCATION CORRECTION HED. Title Review Disposition Number i

5.1-51 Mimic Colors Are Too Dark brown mimic lines will Similar be changed.

6.1-2 Demarcation Line to Demarcation line on panel Associate Control with 6103 will be extended.

above System 6.1-18 CMC Rotary Controls A dashed line will be used to

. Appear Highly Similar indicate which pairs of switches are to be used together, 6.1-27 Inadequate Component Relabeling and demarcation Grou pin g will be.done'as recommended.

6.1-41 Demarcation Demarcation lines will be repaired as need ed .

l 8.1-5 More than-Five.Similar Components will be. grouped Vertical Meters Laid with demarcations.

'Out in an Unbroken Row I

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APPENDIX A PAGE 5 HED REPORT

SUMMARY

MAIN CONTROL BOARD SCALING CORRECTION HED Title Review Disposition Number 0.1-2 Display Requ ires Will be changed to read Operator-Conversion in ' gallons.

5.1-5 Total FW FLOW and FW Scales will be modified.

Booster Pump DISCH F LOW Scales 5.1-6 RWST TEMP. Indicator Scales will be modified.

Scales 5.1-7 Feedwater Pumps Scales Scales and labeling will and Labels modified.

5.1-8 REFUEL CAV LEVEL Scales will be modified.

Indicator Scale MRF #10,600.

5.1-14 Vertical Meter. Scale BTRS FLOW scale will be Ranges are Larger than changed.

N eed ed .

5.1-34 Unnumbered Graduations Will rescale and relabel switch positions on Radiation Monitoring Panel, and also change scale for FI-122B(CREP).

5.1-41 Scale Progression Scale will be redesigned as recommended (same as HED

1. 5.1-34) 5,1-42 Redundant Labeling on Labeling on scale band will Display Face be removed and replaced with white narrow band.

5.1-46 Character Dimension Scales will be replaced with and Spacing standard metal scales.

5.1-50 Associated Ammeters Matched meter scales will be with Different Scale installed.

L ayou ts

APPENDIX A PAGE 6 HED REPORT

SUMMARY

MAIN CONTROL BOARD SCALING CORRECTION HED Title Review Disposition Number 5.1-53 Improper Radiation Scales will be changed.

Monitoring Recorder Scales 5.1-54 Improper increments on Replace scale on meter to Meter Scales provide increments of 10 units.

6.1-1 Inconsistent Format for The upper limit-(max amps)

Temporary Label will be marked in red on the Information face of each display.

6.1-4 Inconsistent Display and Scale label will be changed Scale Label to read "*F".

6.1-16 Zone Markings on Meters Zone coding will be changed Incorrect or Missing as recommended.

6.1-22

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Indicators use Incorrect Parameters labels will be

. Parameter Labels changed (" Feet" to " Level").

9.8-7 Display Scales Without FI-385 (BTRS) will be Requ ired Precision or modified (HED #5.1-14). Rad Ac cu r acy monitoring log. scales will also be modified (HED-

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APPENDIX A PAGE 7 HED REPORT

SUMMARY

MAIN CONTROL BOARD DESIGN / ENHANCEMENT HED Title Review Disposition Number 0.1-3 Alarm Discrimination Overspeed indication logic will be redesigned.

0 .'l - 6 Confu sing Contro'l/ Controls will be rewired, Display Arrangement relabeled and color coded.

(re: Steam / Feed Flow Selector Switches) ,

1.1-8 Poor Control Placement Move the three switches onto the MCB in the area of the other feedwater i n s t ru m en t a t i on .

1.1-10 Trip Hazard in CR Phone to be added, also investigate the use of retractable phone cords.

3.1-8 Train Identification Indicators are being rewired by MRF #10600.

4.1-22 Nonessential Controls Knobs for unu sed controls w'11 be removed.

4.1-23 Potentiometers for Potentiometer thumbwheel will CoPumps Function be modified.

5.1-12 Malfunctioning Pens and Will try to modify inking Printing Head s mechanisms to accept felt tip pens. If not possible, will provide inking kits and necessary maintenance.

5.1-17 Unconventional Color " Low Bearing Pressure" light Coding of Lights will be changed to amber.

APPENDIX A PAGE 8 I HED REPORT

SUMMARY

MAIN CONTROL BOARD DESIGN / ENHANCEMENT HED Title Review Disposition

-Number 5.1-52 . Relocation of FWPP DISCH ^ PI-508 will be moved next to HDR PRESS METER (PI-508) PI-461C.

6.1-44 Inadequ ate Labeling, Labeling regarding control Inconsistent Control actions will be provided.

Placement Mimic on panel 6118 will be corrected and 2 J-handle controls will be swapped to be consistent with mimic on panel 6116.

6.1-49 Engraving and Unused Labels will be cleaned and Pushbuttons on Turbine the " REMOTE AUT0" function P an el and pushbutton will be removed and replaced with a

" BLANK" tile.

7.1-35 Legend Wear & Exi sting pu shbu ttons will be Ob s cu r emen t cleaned and legends will be repainted.

7.1-42 Relevant Keys All unused keys will be replaced by blanks.

7.1-68 Inadequ ate Annunci ation An annunciator for data system f ailure will be added to the MCB.

7.1-109 Highlighting Emergency Meaning of cau tionary color Conditions coding on operator console will be clarified.

7.1.110 Contrast Glare will be reduced by applying a plastic coating to the inside of the printer cover. Administrative controls to typewriter ribbons to be replaced regularly.

APPENDIX A PAGE 9 HED REPORT

SUMMARY

MAIN C0hrROL BOARD DESIGN / ENHANCEMENT HED Title Review Disposition Number _

8.1-6 . Arrangement of Non Lights will be relocated, Legend Indicator Lights relabeled, and the colors Does Not Conform to changed.

Popu l at ion 8.1-7 Arrangement of Simple Lights and . labels will be Indicator Lights Does rearranged.

Not Conf orm to Popu lation Stereotypes 8.1-8 Vertical Meter Vertical meters will be Arrangement Does Not swapped.

Follow Alphanumeric

. Stereotypes 9.8-1 Instrumentation to -

LI-112 will be added to Detect Abnormal Plant panel 6108 as a backur.

Condition Single indicator for LI-115 will be replaced with a dual one for LI-112/LI-115.

9.8-2 Adequacy of Information Arrangement of SI monitor Provided on Visual lights has been optimized.

Displays Nuclear engineering is trying to work ou t problems with computer system.

9.8-5 Labeling of Displays Steam damp lights are being Presenting Equipment corrected as recommended S t atu s 9.8-8 Sparging Steam To be corrected by adding Controller for MCB necessary sparging steam controls.

'9.8-9 DEAER Storage Tank Add needed indicator to MCB.

Temp. Indicator 9.8-10 Clock Needed on MCB A digital clock will be added to the MCB.

APPENDIX A PAGE 10 HED REPORT

SUMMARY

MAIN CONTROL BO ARD AD JU ST MENTS HED Title Review Disposition Number-0.1-4 Nuisance Alarm Alarm limits will be ad ju s ted .

3.1-9 Annunicator Set-Points Modify setpoints as Need' Adjustment su gges t ed .

APPENDIX A PAGE 11 HED REPORT

SUMMARY

MAIN CONTROL BOARD REMOVAL

>p HED Title Review Disposition Number 5.1-21 Unnecessary Meters, Engineering will remove Controls, and Labels unnecessary meters, l ab e l ,

and mimic arrow f rom panel.

6.1-3 Temporary labels on Labels will be removed.

Annunicator Panels 6.1-8 CR Survey Labels Calibration stickers are ru) longer u sed. JExisting stickers will be removed.

APPENDIX A PAGE 12 HED REPORT

SUMMARY

MAIN CONTROL BOARD MAINTENANCE-HED Title Review Disposition Number 1.6-2 Noise / Distractions Repair page system. Adju st Outside Control Room volume of individual page stations.

4.1-9 Legend Pu shbuttons in Broken and worn pu s hbu t ton s Disrepair will be replaced. Also RPM rates will be put on labels.

4.1-12 Legend Wear and Existing p.b. will be Obscurement (Back replaced with new p.b. using Panels) dark letters on a light b ack gr ou n d .

5.1-26 Graphic Recorder Red ink has been changed to Contract '

black. Recorders will be better maintained.

5.1-38 Drum-Type Counter: Drum-type counters will be Contrast periodically cleaned.

.7.1-18 CRT Display Controls SCE&G compu ter group is av ailab le to ad just CRT's (contrast, brightness, color) whenever the need arises.

7.1-63 Color Standardization. Will adjust the color and implement an administrative-procedu re.

7.1-84 Character Contrast Improve' brightness of (Displays) contrast.

7.1-94 Legend Wear and Maintenance will be done on Obscurement pu shbu ttons as recommended.

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APPENDIX A PAGE 13 HED REPORT

SUMMARY

MAIN CONTROL BOARD TRAFFIC / NOISE HED Title Review Disposition Number 1.1-2 Traf fic Around Install partitions to keep Foreman's Console people ou t of console area.

1.1-5 Floor Covering Mats to be replaced with Tripping Hazard carpet.

1.1-7 BISI CRTs Block View CRTs will be moved to a less and Cause Congestion critical area and the foreman's console will be redesigned.

1.1-12 Unit Arrangement and Compu ter console to be Interference rotated 180* and PSSD/BISI terminals to.be relocated.

1.6-1 Control Room Noise Carpet to be installed, Distractions volume control to be added to GAITRONICS.

1.6-3 Noise Level at Particu lar Partitions to be added.

Time Periods l

l APPENDIX A PAGE 14 HED REPORT

SUMMARY

MAIN CONTROL BOARD ADMINISTRATIVE CONTROLS HED Title Review Disposition Number 0.1-1 Procedu ral and Labeling Plant procedures including Inadequ acy (re: RBCU .EOPs, SOPS,-and STPs being FANS) rewritten-to incorporate human f actors principles.

Ef forts being taken to ensure consistency between procedures and nonmenclature on the MCB plus using emphasis where appropriate in procedures. Procedure has been written to_ verify appropriate positioning-of breakers including a sign-off verification (STP-101.000).

0.1-7 Poor H.F. Engineering of Procedures Enhancement Procedure 1.1-9 Insuf ficient Maintenance Administrative Controls are of MCB to be implemented.

1.1-11 Procedure Manu al will Will use placekeeper.

not remain open in Desired Position.

1.3-2 Insufficient Protective Will ensure that small Equipment in Small Sizes equ i pmen t is made available.

1.3-3 No Protective Clothing Will ensu re that all in CR area necessary protective clothing is availab le.

1.4-1 Inadequ ate Control Room Temperature will be Humidity and Temperature controlled.

Levels

APPENDIX A PAGE 15 HED REPORT

SUMMARY

MAIN CONTROL BOARD ADMINISTRATIVE CONTROLS i

HED Title Review Disposition Number 1.4-3 Dust on Control Boards / Housekeeping and possibly Labels Dirty Soon Af ter adding filters.

Cleaning.

1.7-1 Needed Expendable Items Will see that all necessary supplies are provided.

4.1 Loose Control Switches Will have all loose or broken items repaired as needed.

5.1-45 Paper Speed Charts will be marked at end i Ad ju s t ab i li ty of shift.

6.1-6 Out-of-Service Label Will ensure that temporary Positioned over labels do not ob s cu re Permanent L ab e l permanent l ab l e s .

6.1-13 Tags-Outs not Securely Only the small red or red and Affixed to Components white squ are tags will be used.

6.1-35 Temporary Labels and Will control temporary Labeling I .l ab e l s . Handwritten l ab e l s will become permanent labels, or be removed.

6.1-36 Temporary Labels and A consistent format for Labeling II designing and producing temporary labels will be developed.

7.1-71 Usability of Data Paper without holes will be used.

7.1-82 Sof tware Security Problem will be addressed by L

(Authorization) administrative controls.

9.8-3 Operational Sequences Administrative controls will Requiring Operator to be initiated so that operator Leave Primary Operating will not have to leave the Area operating area whenever

[

possible. (See SAP 200) c L

APPENDIX A PAGE 16 HED REPORT

SUMMARY

MAIN CONTROL BOARD ABBREVIATIONS HED Title Review Disposition Number-5.1-23 Abbreviation MAR (margin) and SEN (sensor)

Standardizaton (Legend will be added to Lights) abbreviations list.

6.1-10 Inconsistent Letter designation will be Nomenclature u sed for u sed when referring to the Reference to System reactor coolan t pumps.

Equ i pment 6.1-11. Use of Synonyms is not Letters will be used to Consistent for Some designate each loop as Controls and Displays recommended.

6.1-30 Position Labels Contain "NON-A" will be added to Unnecessary Information ab b rev i at i on list.

6.1-62 Consistency Use only accepted standardized abbreviations.

'7.1-36 Abbreviation Similarity SCE&G will provide a labeling study to standardize abbreviations.

7.1-38 Abbreviation-Output Abbreviations will be changed if necessary.

7.1-88 Abbreviation Similarity Abbreviations for designators which operators use will be changed.

8.1-2 Panel Abbreviations Abbreviations on control panels not f ou nd in the " List of Acronyms, Abbreviations and Symbols" will be added.

APPENDIX A PAGE 17 HED REPORT

SUMMARY

COMPUTER SYSTEM

.0PERATING MANUAL HED Title Review Disposition Number 7.1-2 Procedure Utility Changes will be made in the operators manu al. 2b. Prefix "2" is necessary to maintain consistency with PSSD display.

7'1-16

. Placement of Guidelines will be defined i n Messages operators manual. Any deviations identified will be corrected.

7.1-17 Use of Cu rsor Definition of poke-point criteria will be given in operator's manu al.

7.1-22 Error Correction Adequ ate instructions Gu id an ce concerning error messages will be provided in operator manu a l .

7.1-67 Procedu re Utility The operators manual will be rewritten in more concise form.

7.1-69 Con ti ng en cy . P rocedu r es A description of computer (Failure of Computer f ailure indications will be System) included i n the operator manu a l .

4 1

~ - , - , .n- - _ ,, , - - - , - - - , , , , , , , - , . - . . - ,y .... c._n.- n , , - - - - - - - - . - - - - -

n. -e,,

APPENDIX A

'PAGE 18 HED REPORT

SUMMARY

COMPUTER SYSTEM DISPLAY CORRECTION / ENHANCEMENT HED Title Review Disposition Number 7.1-5 Dialogue Consistency " Hypo" key has been deleted.

The display titles will be changed to agree with titles on menus.

-7.1-10 Usability of Data Extra prompting will be provided. Poke points will be corrected.

7.1-11 Extrapolation Twelve entries per column will be provided to gain the accu racy needed.

7.1-12 Presentation of The lack of standardization Identical Data and consistency in' displaying point addresses will be corrected.

7.1-13 Location of Data All page identifiers will be G rou ps displayed in a consistent'and standardized manner.

7.1-24 ~ Delayed Feedback " Working" display will be improved as recommended.

7.1-53 Label Placement Westinghouse will relocate label to the right and center it over the respective area.

7.1-55 Data /0ption Common top level help func-Presentation tions and attributes will be listed in alphabetical order.

APPENDIX A PAGE 19 HED REPORT

SUMMARY

COMPUTER SYSTEM DISPLAY CORRECTION ENHANCEMENT HED Title Review Disposition Number 7.1-79 Data Loss- Data loss will be prevented as. recommended.

7.1-56 Page Designation: Both the number and the total Mu ltiple Page number of pages will be Referencing displayed.

7.1-62 -Consistent Terminology Computer alarm messages will contain information on the annunciator tile. Alarm limits will be reviewed.

7.1-64 Alphanumeric Will use a diagonal slash Differentiation through numeral zero to distinguish it from the letter 0.

7.1-86 Data Point Indicies Cross indicies have been developed for analog alarms.

7.1-99 Response Time Attempts are being made to reduce response time of compu ter for operator requests.

7.1-112 Operator Requ ested Ef forts are being made to P rin tou t expand capabilities for groupings.

7.1-114 Meaningless Alarm Ef f orts are underway to Messages develop a concept of plant mode dependent inhibit logic.

c APPENDIX A PAGE 20 HED REPORT

SUMMARY

COMPbTER SYSTEM FEEDBACK HED Title Review Disposition Number 7.1-21 Message / Feedback System reliability will be Reliability increased such that format requ ested is displayed. If format cannot be displayed for whatever reason, a message will be provided.

7.1-39 Mode Display. The word " SEARCH" will be ad d ed . The time resolution

'and time period for polar plot displays will also be displayed.

7.1-57 System .Statu s Feedback Will change system so that Messages operator receives system status.

7.1-95 Visu al' F eedb ack Users will be made aware of "v erify" fu nction.

7.1-111 Alarm Records Program is underway to expand postmortem.

APPENDIX A PAGE 21 HED REPORT

SUMMARY

COMPUTER SYSTEM

. TRAINING HED Title Review Disposition Number 7.1-32 Training SCE&G will provide training.

7.1-66 Incomplete Procedures Plan implemented to replace process computer within 5 years. New notebooks, manuals, and improved training.

7.1-81 Training Training will be improved for the P2500.

7.1-93 Error Correction Erasure method will be Ease emphasized in the new operator manu al .and in training.

7.1-107- Delay Feedback Not feasible to alter system will train to improve recognition of when message is being. acted upon.

9.8-11 Dif ficu lty in Monitoring Training will be.provided to Critical Safety STA's and operators. The Functions operators manual will be improved.

APPENDIX A PAGE 22 HED REPORT

SUMMARY

COMPUTER SYSTEM SECURITY ACCESS HED Title Review Disposition Number 7.1-6 Sof tware Secu rity- Password system will be Authorization changed.

7.1-7 Sof tware Secu rity- Password protection will be Error Presentation improved.

L

r- -

APPENDIX A PAGE 23 HED REPORT

SUMMARY

COMPUTER SYSTEM PROMPTS HED Title Review Disposition Number 7.1-4 Command Langu age Logic General problems with the dialogue will, or have been corrected.

7.1-20 Use of Prompts Frequent prompts will be inserted.

APPENDIX A PAGE 24 HED REPORT

SUMMARY

MISCELLANE0US HEDs HED Title Review Disposition Number 1 3-5 Provisions to Communicate Repairs will be made more During. Emergencies quickly or may switch to another type of radio. More

" Hear-Here" boxes will be installed in noisy areas.

Also tactile stimu lators are being obtained.

2.1-3 Conventional and Sound Phones will be mounted in Powered Telephone Systems " Hear-Here" booths in noisy and UHF Fixed Base areas. Sound-powered phones will be repaired. The fixed-based UHF system has been replaced.

2.1-4 Problems with the Antennas have been placed Walk ie-Talkie Sys tem where needed. Initiate a and Emergency Back-u p preventive maintenance Equipment program for radios. Provide tactile stimu lators and P. A.

system in noisy areas.

6.1-38 Incomplete Labeling (SI A study to determine and Signal, Phase A or Phase verify appropriate labeling 8 Isol Signal) of components with the associated signals is to be undertaken and labels corrected as needed.

6.1-39 Providing Labels re: A study of breaker labels is Associated Breakers for to be undertaken and l ab e ls Components will be corrected as needed.

APPENDIX A PAGE 25 HED REPORT

SUMMARY

CORRECTED HED'S HED Title Review Disposition

-Number 1.1-6 Rad ios Clutter Radios have been moved.

Workspace Area 1.3-4 Protective Equipment Operations has been supplied and Communication with voice boxes to use with Scott air packs.

1.4-2 Annoying Ventilation Since temperature will now be Drafts con trolled administratively, this shou ld decrease cold drafts.

3.1-1 Illumination of Blank Bu lbs under ' blank tiles have Status Light Tiles been removed.

3.1-6 Defeatable Controls F ire and Security alarm system has been changed, appropriately.

3.1-7 Train Identification The number of auditory signals in the control room has been reduced.

4.1-1. Inconsistent Labeling Reactor trip switch on panel Reactor Trip J-Handle 6114 has been changed to i match that on panel 6110.

4.1-3 Control Adju stment to All instruments operating out a Precise Level of tolerance have been fixed.

4.1-6 Unnecessary Key Switch / The 3 trend recorders have Key Locks been changed for recorders w/o locks.

5.1-1 Trend-Recorder Scale Proper supplies ordered.

Incompatibility i

l 5.1-9 Read ability of Data Recorders have been i

Through Recorder replaced.

Window l 5.1-27 Chart Scale Numbering' Proper paper is being used so

( that printing is on scale.

i I

4

. . l APPENDIX A PAGE 26 HED REPORT

SUMMARY

CORRECTED HED'S i

t HED Title Review Disposition Number 5.1-43 Chart Recorders: Labels have been added and Labeling Channel Order color coded.

5.1-44 Chart Recorders: Duplicates HED #5.1-43 ,

Parameter Identification

6.1-24 Group Label does not Lignts labeled "PZR SAFETY Correctly Describe all VLV" are being removed.

i Vertical Meters Within I the Grou p.

7.1-1 Incomplete Procedures Cu rrent manu al has been

placed in CR.

7.1-3 Distortion Distortion has been fixed.

l 7.1-9 Response Time The response times have been

, improved.

l 7.1-19 Message Content Messages have been changed.

, 7.1-23 Error Correction The " erase" fu nction has been l Erase enabled.

7-l.34 Temporary Label SCE&G has affixed a permanent

, identification label. (

i f 7.1-37 Abbreviation- " Erase" terms displayed on

I/O Compatibility CRT made consistent with '

terms on function keys.

, 7.1-50 Indentation Correction has been '

implemented as recommended.

7.1-70 Already corrected by Distortion adjus ting screens.

l l

3

APPENDIX A PAGE 27 HED REPORT

SUMMARY

CORRECTED HED'S.

HED Title Review Disposition Number 7.1-74 Data Group Labeling All improvements that are possible have been made.

7.1-85 Temporary Labels Strict adherance to SAP-200 has been implemented to correct problem.

7.1-118 Dialogue Has been corrected.

8.1-3 Color Coding and The group of lights cited Arrangement of Lights is being completely removed Not Conventional from MCB l

1 l

L

I t

APPENDIX B PAGE 1 l HED REPORT

SUMMARY

FURTHER REVIEW HED Title Review Disposition i Number L

1.2-2 Reach and Visu al Range Radiation monitoring panel, "

controls and displays will be investigated for l rearrangement with low l displays moved up if l l

possible.

6.1-50 Hierarchical Labeling The Radiation Monitoring Panel will be investigated  :

' for rearrangement and -

relabeling.  ;

j 6.1-59. . Functional Grouping Displays will be investigated l

for relocation into functional groups.

f l 7.1-29 Independence of Presently, if a hardcopy is I L Terminal Functioning requested, the display of formats on the CRT cannot be controlled. Investigate  !

l hardware changes to make the

line printer independent of i CRT display. {

7.1-59 CR - Su rvey SCE&G will evaluate  ;

implementation of a printing l capability of at least 300 i

' lines a minute.

i 8.1-10 Poor Control Arrangement Changes involving the arrangement of RWST meters, ,

accumu lator meters, RCS Temp. ,

l meters & SG Press / Level }

l meters have been tentatively l approved. l t

1

APPENDIX C PAGE 1 NUREG-0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 1.1-1 No Annunciator Pushbuttons are within 5'to Pushbuttons at RV 7'. Nu issance alarms study Control Station underway to reduce operator distractions.

1.1-3 Inadequ ate Seating Operators use tall chairs only briefly. Only 1/5 of-operators interviewed felt chairs were uncomf ortab le.

1.1-4 Control Board Color There is presently no need to repaint control board. Will consider repainting at a later date.

1.1-13 Inaccessable File E0Ps now stored on desk top C ab i n e t s file cabinets are no longer regu larly used.

1,2-1 Oversized Handrail .(HED Disapproved) Handrail was designed to lean on to increase reach capabilities.

Installing a small handrail (as suggested) wou ld negate that design f eatu re.

1.3.-l Availability of (HED Disapproved) Operators Instructions for Personal are given yearly training and Protective Equ ipment testing in the use of Scott air packs. The Fire Brigade dresses ou t each qu arter.

Posted written in s tru ct ion s are not necessary.

2 1-1 Prioritizing Incoming There is a specific phone and Outgoing Messages number for plant emergencies.

All personnel are trained on this yearly.

2.1-2 Dif ficu lties Using The 3 main and 2 backup phone Conventional Powered lines are adequate for Phone Systems bu siness pu rposes.

-=- . - , . _ .

O.

APPENDIX C PAGE 2 NUREG-0700 GU IDE LINE DEVI ATION' JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 2.1-5 PA System Problems Dedicating a specific PA line for a control room message "only" is not feasible as it cou id increase the number of calls into the control room during an emergency.

2.1-6 Adju stability of Gain Fixed base transceivers are on Fixed-Based Transceivers not relied upon for gaining attention. Use P.A. system and dedicated red phones.

3.1-2 . Inconsistent Annunciator Space constraints do not Pushbutton Arrangement allow for annunciator panel

6115 to be consistent with panels 6101, 6108, 6112 and 6117. The top-to-bottom sequence is consistent with the left-to-right order of the other panels.

! 3.1-3 Amb igu ou s Annu ci ator The set points on the alarms -

Tile Legends in question allow adequate time to identify problem.

l Therefore, no threat to safety or equipment is seen.

3.1-4 Annunciator Matrices The largest matrix has only i not Subdivided 36 tiles. Annunciator tiles are identified (column x row) within each light box allowing for efficient response. Annunciator l Response Procedures are such l

that finding a page for a i

specific tile is quite easy.

t 3.1-5 Annunciator Response The annunciator response t Procedure Index procedure (ARP) index is easy to use. It is well organized and each ARP has an i llu s tr a-i tion of the subject ALB tile.

No change recommended by HFE consu Itan t.

l

APPENDIX C PAGE 3 NUREG-0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 4.1-4L Duplicated and Some duplicate controls are Unnecessary Controls .needed f or backu p, others have been removed, and those on back panels are used by other than operators.

4.1-7 Pu shbu tton Su rf aces Not Operators do not have trouble Concave / Slip Resistant with fingers slipping off pu s hbu ttons, and they are f amiliar with the' functions of the bu ttons so they can tell them from indicators.

4.1-10 Missing Control Operations personnel do not use APDMS equipment.

4.1-11 Excessive Du st Operators do not use the APDMS Accu mu l at ion (Back panel.

Panels) 4.1-13 Direction of Activation This is only a test switch, (Rotary Control) not for operations to use.

4.1 Thumbwheel Coding Positions vary according to the function selected, backfit not possible.

4.1-17 Control Contrast The pushbutton can be easily located even thou gh contrast is somewhat low.

4.1-18 Direction of Movement Switch is never used, system (Toggle Switch) is.always "on."

4.1-19 Direction of Motion All thumbwheels on back panels (T hu mb wh ee l s ) move in the same direction, and this has become an accepted stereotype.

4.1-20 Protective Devices Settings have been adjusted; controls have never been gu ard ed . No problems have been noted.

APPENDIX C PAGE 4 NUREG-0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

l HED Title Review Disposition Number 4.1-21 Control / Display This is not a ganged control, Integration (Ganged ou tside wheel is a lock wheel Knobs) which is not used.

5.1-2 indicator Light Color Operators are very familiar Coding with the way the controllers i operate, colors are in no way mi s l e ad i n g .

5.1-3 Use of Upper and Lower Instructions are easily read Case Lettering on as they are. Change wou ld be Display difficult and of no benefit.

5.1-4 Zero Value Position or Changing the position of the Display Gauge zero value position wou ld cause the rest of the display to become cramped and illegible.

5.1-10 Tearing Off Recorder Operators never tear off Paper _ paper, they mark it.

5.1-11 Records Used for This does not cause any Purposes Other. Than prob lems , recorders used as to Record Trend b acku p s.

Confirmation 5.1-13 Association Between Not a problem to trained Trend Recorder Scales operators since total flow and Channels is Not amou nts of each parameter Apparent differ greatly.

5.1-15 Legends With Excessive Lab e li n g is easily read f rom Lines of Lettering operating position.

5.1-16 Drum Counter Digits Operators only use last 4 Not Grouped digits, probability of mi s re ad i n g is very low.

5.1-19 Indicator Lisnts Indicate Of the lights mentioned, Unfavorable Statis various do not indicate alarm statu s, have already been changed. or have been removed.

m APPENDIX C PAGE 5 NUREG-0700 GUIDELINE DEVIATION JUSTIFICATION

SUMMARY

-HED Title Review Dirposition Number 5.1-20 E xt r an eou s Information In all cases necessary or Components labeling is readable and ext r an eou s information does not interfere.

5.1-24 Scale Gradu ation Scales can be read easily.

5.1-25 Gradu ation Mark All instruments can easily be-Concealment read to level of precision required.

5.1-28 Recorder Orientation Operators do not use APDMS equipment.

5.1-29 Drum-Type Counter: There is no problem obtaining Graphing of Numerals accurage readings.

5.1-30 B li nk i ng Display does not blink during normal use.

5.1-31 Distinguishability From No'need to distinguish, all' Legend.Pushbuttons are pushbu ttons.

5.1-32 ' Abbreviation Operators understand Standardization abbreviations used.

(Displays) 5.1-33 Moving Scale Meters A fixed-scale meter wou ld require more space than is

~av ai l ab l e.

5.1-35 Parallax All meters can be read at level of precision necessary.

5_.1-36 Pointer Visibility Operators-do not use incore-instrumentation.

5.1-37 Zone Marking Zone markings are n'ot appropriate for indicators-listed.

APPENDIX C PAGE 6

.NUREG 0700 GUIDELINE DEVIATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 5.1.-39> Ambiguous Sensing of Status of equipment is easily Indicator Lights discerned, "on" and "off" are clearly distinguishable.

5.1-40 Extraneous Items on Items do not interfer with Display' Face- read ab i li ty~ of displays 5.1-47 Mu ltiscale Indicators HED is incorrect, scales and position indicator are aptly arranged.

5.1-48 Layou t Stand ardization There is not convention for combining level, pressu re, flow, etc. on dual indicators, and from an HFE perspective such a convention wou Id not help operators.

6.1-7 Large Component Light brightness already Matricies not Subdivided differentiates large component matrices adequately.

6.1-9 Inconsistent use of SPD (speed) is an approved Abbreviations for abbreviation known well in Associated Controls content by operators. There and Displays is little possibility for con fu s ion .

6.1-12 No Labeling of CRT Unit Operators do not use these Access Openings to controls.

Indicate Accessible Control 6.1-14 Tag-0uts not Securely Tag-ou ts have component Affixed to Components numbers on them and can be replaced if they fall off.

6.1-15 Tag-ou ts do not Prevent T agg ed-ou t equ i pmen t is racked Control Actu ation ou t . Tag-ou ts are f or information only.

APPENDIX C PAGE 7 NUREG 0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 6.1-19 Sub-groups of Status Demarcation tape now surrou nds Lights are not Easily groupings, more tape wou Id be Identified confusing.

6.1-21 Labels Not Placed Above Sometimes it is better to Associated Components place labels under component for better associated value or adequate labeling room.

6.1-23 Incomplete Annunciator There is not enough room to Message list all the fans on the annunciator-tiles.

6.1-25 Labeling does not HED is incorrect. Operators Properly Describe have fu 11 understanding of Displays misalignment lights and.their fu nction.

6.1-26 .Some Mimic _ Lines These lines represent Extend Past Their connections to the bus yard.

Termination or Destination. Points 6.1-28 Functional Control The lock. positions are not Positions not Labeled used.

6.1-29 Discrete Rotary Center is not a functional Controls that have position on these switches.

Un labeled Functional Switch Positions 6.1-31 Association Between Potential for error is very Individual Labeling low.

is not Clear 6.1-32 Inconsistent Position Positions of switches is Label Designs immedi ately obviou s.

6.1-33 Identification Labels If labels were above, they Placed Below wou Id be less read able due to Components ob scu r at ion .

APPENDIX C PAGE 8 NUREG 0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

-HED Title Review Disposition Number 6.1-48 Labels Obscured' by Labeling is still easily read.

Equ i pment 6.1-52 Label Placement Labels are easily associated with'the item labeled.

6.1-53 Concealment Operators do not use equipment mentioned in this HED.

6.1-54 Symbol Consistency Operators do not use APDMS.

Labeling of Nu clear Instrumentation Protection Channels is an accepted industry convention.

6.1-55 Direction of Motion Control motion is consistent with population stereotypes.

6.1-66 Panel Labeling Association between labels and equipment is good.

6.1-67 Discrete Control P os i~t i on labeling is correct Position Labeling for the switch in question.

7.1-8 Unique Format Titles 8a. The prefix on the page identifier f or PSSD displays identify their content. 8b.

The pressurizer has always been identified as an integral part of the RCS, therefore, no action needed.

7.1-15 Organization of Data Information,. labeling and data is presented in.a consistent fashion, a) complete l ab e lin g is used when defining a distinct grouping; b) hierarchical l ab e l i n g is u tilized, poke points to the

APPENDIX C PAGE 9 NUREG 0700 GUIDELINE DEVIATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number left of data; c) units are repeated for each block of data; and d) channel designators are not normally used as parameter id en tif i ers .

.7.1-26 Symbolic Coding Coding indicates when a pump Differentiation is on or off and when a valve is open or closed.

Operability of a component is indicated by BISI. Removing a "t agged ou t" component from scan will result in that component being l ab e l ed

" bad".

7.1 Symbol Coding for The way the sensors are setu p Pump and Valve Status in the pumps and valves determine the symbols to be hollow or solid. It is not possible to change the sensors f rom the pumps and valves.

-7.1-28 Use of Color Color convention is explained in operator's manu al. Color code o.k. considering t rad e-of f s .

7.1-31 B li nk i ng-In tens ity From an HFE perspective, the

& Information arrow blinking slowly is acceptable.

7.1-33 Video Hardcopy Printers One video hardcopy printer in the C.R. with a backup available in the TSC is ad equ a te .

7.1-40 Audit Trail The ' backup bu tton has trail c ap ab i li ty.

I 7.1-30 Arrowh e ad s -I n pu ts / To be corrected by Ou t p'u t s explanation of convention in l

operators manu al. Adding more l

arrows wou Id only serve to unnecessarily clutter the 7

l display.

l.

APPENDIX C' PAGE 10 NUREG 0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 7.1-41 Numeric Keyboard Since speed is'not needed for Arrangement entries, the existing linear 1,2,3,.. 9,0 numeric. keyboard arrangement will suf fice.

7.1-43 Functional Layout Exi sting ' stand ard' keyboard arrangement cannot support the capability of grauping functions together. Operators report no problems using existing keyboard.

7.1.44 Mu ltiple Mode Consequ ences are not seriou s.

Keyboards A mu ltiple mode keyboard is standard practice for~a programmer's console.

7.1-45 Character-Grouping Skipping space between value and data quality code wou Id resu lt in too much separation between value and units.

Quality- code is super scripted and a different color so it stands ou t.

7.1-46 Maintenance of Ordering List is not long enough to require change.

7.1-47 Menu Designators Present cursor selection method is ad equ ate.

7.1-48 -Periods. Periods are used only when confusion may resu lt withou t them.

-7.1-49 List Ju stification Data values are right justified.

7_

APPENDIX C PAGE 11 NUREG 0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 7.1-52 Label Highlighting Labels are adequate.

7.1-54 Demarcation Demarcation is appropriate as presently configured.

7.1-58 Color (Consistency Use.of color is satisfactory of Meaning) given constraints of the system.

7.1-60 Alarm Records .The system was not designed by Westinghouse as a backup or replacement of the alarm system.

7.1-61 Operator Regu lated This is not part of the design Prin tou t basis of the system.

7.1-72 Data Fields System is limited to 54 k memory. Not feasible to change.

7.1-73 ~ Justification Not feasible to change.

7.1-75 Blinking The problem is minor. The-blinking can b~e stopped with acknowledge key.

7.1-76 Operator Memory CRT is not the primary means of monitoring. alarms, the printer is.

7.1-77 Display Copier HED is incorrect. Appropriate feedback is provided.

7.1-78 Paper Supply There is no problem with the paper su pply. There is 14 hrs. paper supply and is checked every 8 hrs.

APPENDIX C PAGE 12 NUREG 0700 GUIDELINE DEVI ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 7.1-83 Sof tware Security System is protected from (Error Prevention) errors which wou Id change programs in CR.

7.1-87 Keyboard Slope Keyboard is not for typing.

7.1-89 Abbreviatons-I/0 Operators are familiar with Compatability present terminology.

7.1-90 Abbreviations (Output) Improvements are not possible due to limited memory capability.

7.1-91 Prompting Prompting not possible with (Operator Requests) present system.

7.1-92 Prompting Prompting not possible with (Correction.of Data) present system.

7.1-96 Relevant Keys Not feasible to make suggested changes due.to sistem limitations.

7.1-97 Mu ltiple Mode Not feasible to make suggested Keyboards changes due to system limitations.

7.1-98 Entry Speed Not feasible to make changes due to system limitations.

7.1-100 Group Separation Format change is not feasible

, due to limited memory.

7.1-101 Standardized Fields Operator error is low, and consequences are limited. Not i feasible to correct due to system limitatons.

7.1-102 Label Highlighting Not a significant problem.

' Operator- can space bef ore the

- event sequ ence starts.

L_

APPENDIX C PAGE 13 NUREG 0700 GUIDELINE DEVIATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 7.1-103 Organization of Data Not feasible to make a format change due to system limitations.

7.1-104 Demarcation of Data Not feasible to alter format.

Subgroups 7.1-105 Paragraph Separation Not feasible to alter format.

7.1-106 Error Correction Messages are constructed as Gu id ance well as they can be given the constraints of the dictionary.

7.1-108 Activity Completion Nothing more can be done with Feedback present system. Not seen as seriou s problem by operations.

7.1-113 Alarm Discrimination Not feasible to modify format.

Training is given, so presentations are well understood by operators.

7.1-115 Column Separation Not feasible to modify format.

7.1-116 Printer Operating Operators are trained and In s tru ct ion s familiar with methods for reloading supplies.

8.1-1 Inconsistent Color Color used is within Coding plant conventions.

8.1-4 Inconsistent Color One set of lights merely Coding of Non-Legend denotes status (white) The Lights _second identifies as runing (red).

8.1-9 Hagen and Process Suggested change is not deemed Controllers Not feasible, since modifications T actu ally Id en t i f i ab le wou ld introduce delays in necessary functions.

APPENDIX C PAGE 14 NUREG 0700 GUIDELINE DEV: ATION JUSTIFICATION

SUMMARY

HED Title Review Disposition Number 9.8-6 Indication of Equipment On loss of power, meters f ail or Instrumentation offscale or at bottom of Failure or Inoperability scale. Some NIS indicators fail to on-scale zero. Loss of power to the process systems is also alarmed on the control board.

APPENDIX D PAGE 1 NUREG 0700 GUIDELINE DEVIATION PARTIALLY CORRECTED HEDs HED Title Review Disposition Number 4.1-5 . Accidental Activation Rad monitor module pushbutton of Adjacent Control panels are to be rearranged.

Master pump controller for condensate pump controls will' be highlighted. Labels will be changed for CMC switches.

It is not practical to fix feedwater controllers. Diesel Generator controls are not considered time critical, therefore they will not be changed.

4.1-8 Control Movement Does Utility will change control Not Conf orm to Popu lation position of several switches.

Stereotypes It was suggested by the HFE

.consu ltant that the remaining switches cited are best left as- they are since probability of negative transfer-of learning ou tweighs the small benefits possible.

5.1-'18 Components Not Properly BTRS select "off" lights will Color Coded be changed to green as recommended. The components not being changed are within convention or training.

5.1-22' Character Contrast Will try to increase

.(Displays) brightness on core cooling monitor. No action on other displays since they are easily read.

6.1-37 Labels Placed Below J-Handle switch labels have Components Partially been moved above the switches.

Obsured Indicator light labels have better associative value below lights.

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o of

• l APPENDIX D PAGE 2 NUREG 0700 GUIDELINE DEVI ATION PARTIALLY CORRECTED HEDs HED Title Review Disposition Number 7.1-14 Data Group Labeling Symbol sets, states and definitions will be provided in operators manual 7.1-25 Blinking a) No action, cursor blinks to aid the user as to it's location. b) "Retu rn to home" cursor function will be added.

c) No action, the causes for many of the alarms observed have been eliminated 7.1-51 Numeric Ju stification T COLD value in loop on page 4RC1 has been right-justified.

Action is not needed on point detail displays since they are not used by the operators.

7.1-65 Preferred Practice Several problems cited wou Id require massive design change.

Prompts are provided to overcome this prob lem.

9.8-4 Unnecessary Visual a) Nuisance alarms are being Displays in Control reviewed by engineering for-Room elimination, b) The indicators that are necessary for plant saf ety are being corrected.

Other suggested changes are not feasible or necessary.