ML20049J318
| ML20049J318 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 03/10/1982 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-1.D.1, TASK-TM KMLNRC-82-172, NUDOCS 8203150050 | |
| Download: ML20049J318 (11) | |
Text
KANSAS GAS AND EiECTRIC COMPANY f t4 ELE CT4C CCPAPAN V GLENN L MOESTER W K I P8P E 006 86 7 est,(( t Asp March 10, 1982 W1.1. I
.N Mr. Harold R. Denton, Director ff Office of Nuclear Reactor Regulation N,,
U.S. Nuclear Regulatory Commission
'%2 i
/g I
T " g "'a >
Washington, D.C.
20555 2 1982r s i
KMLNRC 82-172 7/; M h
Re:
Docket No. STN 50-482
-rf. jp Ref: KMLNRC 82-153 dated 1/15/82 from GLKoest to HRDenton, NRC N
Subj: liuman Factor Evaluation of Wolf Creek Site-Specific Control Room Panels, RLOl3 atd RLO14
Dear Mr. Denton:
The referenced letter transmitted the independent preliminary design assessment of the Wolf Creek site-specific control room panels, RLOl3 and RLO14, as required by NUREG-0737, Item I.D.l.
Transmitted herewith are the KG&E responses to Essex Corporation's findings. This information is hereby incorporated into the Wolf Creek Generating Station, Unit No.1, Operating License Application.
Yours very truly,
$llU l
GLK:bb Attach cc: Mr. J.B. Hopkins (2)
Division of Project Management Of Office c Nuclear Reactor Regulation U
U.S. Nuclear Regulatory Commission S
Washington, D.C.
20555 Mr. Thomas Vandel i
l Resident NRC Inspector Box 311 Burlington, Kansas 66839 8203150050 820310 PDR ADOCK 05000482 A
PDR 201 N. Market -WicMa, Kansas - Mail Address: RO. Box 208 : Wichita, Kansas 67201 - Telephone: Area Code (316) 261-6451
e OATil OF AFFIRMATION STATE OF KANSAS
)
) SS:
COUNTY OF SEDGWICK )
I, Glenn L.
Koester, of lawful age, being duly sworn upon oath, do depose, state and affirm that I am Vice Presi' ant - Nuclear of Kansas Gas and Electric Company, Wichita, Kansas, tilat I have signed the foregoing letter of transmittal, know the contents thereof, and that all statements contained therein are true.
KANSAS GAS AND ELECTRIC COMPN 1Y By g f(),
t[f
'Glenn L.
Koester U'
(
Vice President - Nuclcar W.B.
Walker, Secretary STATE OF KNISAS
)
) SS:
COUNTY OF SEDGWICK )
BE IT REMEMBERED that on this loth day of March, 1982 before me, Evelyn L.
Fry, a Notary, personally appeared Glenn L. Koester, Vice President - Nuclear of Kansas Gas and Electric Company, Wichita, Kansas, who is personally known to me and who executed the foregoing instrument, and he duly acknowledged the execution of the same for and on behalf of l
and as the act and deed of said corporation.
l
,,,.......QI WITNESS Wi!EREOF, I have hereunto set my hand and affixed my seal the
,p",,,1.'daf,o.andyearabovewritten.
l,, ~,
. f,s.
-, ~
.hgd., [I g g E[e1yn f[.Fr"y', No 1A l
,' ~.,
- * *,$, P My I'ommission expires on August 15, 1984.
Page 1 of 8 WIF CREEK HtR4AN ENGINEERING fit 0IIGS (HEF)
HEF(1)
Priority Subject Disposition 1
'Ihe site panel annunciators have been extensively reviewed as part of the total control room annunciator prioritiza-tion program. Four major concents were considered in this review. 'Ibey are:
Prioritization -
A schtsne was developed whereby the relative inportance of an annunciator will be apparent to the operator. Of the possible coding schemes, positon was selected as the best alternative. h t is, annunciators near the top of the matrix are nore important to plant safety than those near the bottom. Annunciators indicating time-critical hazard-aus conditions are closer to the top than those that are less tine critical. For exanple, an alarm indicating damage to a critical canponent would take precedence (be higher in the matrix) over one indicating a technical specification violation.
i Functional Grouping -
Annunciators are grouped so that related ones are closely associated with eads other and are located near the re-lated MCB controls and indications. m ere similar annun-ciators exist for redundant cmponents or trains of compo-nents, these have been arranged in congruent blocks arranged left to right by train or component number. The prioriti-zation by position is d> served within these functional groupings. Alarns that have a sequential relationship have been placed in a vertical colunn, in sequence, where practi-cable so that the operator may identify the progression of increasingly important alarms.
Engraving Size -
The letter height, stroke width to height ratio, and letter height to width ratio have been nodified to improve legi-bility of the annunciator engravings. h use of larger l
Page 2 of 8 WOIP CREEK HINAN ENGINEERING FINDINGS (HE")
II Priority ( }
Subject Disposition IIEF 1 (con't) letters established an upper limit of three lines and eight characters per annunciator tile. Wis necessitated a cmplete revision of annunciator namenclature.
Nomenclature -
Nomenclature has been extensively revised to: a) inprove the readability of the engraved messages, b) standardize the use of abbreviations, and c) permit use of larger letters to improve legibility.
The site annunciator panel consists of four groups of alarms; lake makeup, plant cooling water, site electrical and miscel-laneous (see Table 1, attached).
%e lake makeup alarm section is placed to the extreme left of the panel as these systems have no direct power block inpact. Electrical distribution alarms related to lake systems are included in this grouping so that they are placed directly above their controls and indications. his aids conplete evaluation of cause-effect abnormalities.
Miscellaneous site alarms are placed in a law priority position except for those alarms associated with hydrogen and oxygen. Iligh flow or Icw pressure in these systems is significant due to the potential hazard of these gases.
%e plant cooling water alarm section consists of alarms relating to main circulating water and service water. %e alarms showing a main circulating water punp trip or a suction bay emergency condition are placed at the top of the panel. %ese alarms indicate a loss of the condenser heat sink and have inmediate effects on plant operation. %e alarms showing an abnormal differential pressure across the' screens are arranged to form a sequential colunn with severity increasing towards the top of the board.
L
Page 3 of 8 WOIF CREEK HENAN ENGINEERING FIl0INGS (HEF)
HEF(1)
Prio @ (2) Subject Disposition 1 (cont'd)
Site electrical alarms are placed to the right of the panel m that they are adjacent to the power block electrical alarms on panel RK016. h higher voltage switchyard alarms are placed at the top of the alarm panel and the circulating water screenhousa electrical alarms are placed adjacent to the plant cooling water alarm groups.
2 3
See HEF 1 above.
3 3
Annunciator engravings will be danged to bring the letter ALL IABEIS height-to-width ratio within the guidelines (NURm 0700,-
9/81, 6.3.3.5.2).
4 3
Annunciators will be reengraved using a stroke width of ALL IABELS approximately.058" (per Finding 3.12 of Reference) and a 6.5:1 height-to-stroke-width ratio.
6 3
Enlarging the annunciator engraving as described in the ANNUNCIA'IOR TILES response to finding #4 will alleviate this finding.
ANNUNCIA'IDR ACKNOWLEDGB 7
3 Annunciator:
The silence function is incorporated in the acknowledge SILENCE CONTROL control. 'Ihis is desirable because it reduces the number and complexity of controls associated with the annunciators without any function loss or ambiguity. '1his feature reduces the visual search time and memory requirements for the operator, enhancirg overall performance.
8 1
Annunciator:
If the time delay relay associated with an annunciator AUDIBLE AINN group times out before an alarm is acknowledged (adjustable from 0 to 60 seconds, but will be administrative 1y controlled to be no less than 10 seconds), that auditory device is silenced autanatically and will not reset until the acknowl-edge button is pressed. 'Ihis feature has no affect on the visual indications, whi& do have reflash capability on all windows with nultiple inputs. h annunciator time e t feature is desirable in that it eliminates a distracting
Page 4 of 8 WOIF CREEK HlNAN ENGINEERING FIlOINGS (HEF)
}
HEP (
Priority Subject Disposition 8 (cont'd) and repetitive chore during conditions of high stress, i.e., a tim when several alarms are being generated in rapid sequence, as during a trip. 'Ihe initial auditory signal alerts the operator of a problem. Allowing the timer to run out and silence its initial and siw9mnt auditory signals will reduce the reed for extraneous activity (repetitively acknowledging alarms) and allow the operators to concentrate on assessing the situation and taking corrective action. Once the imediate actions have been taken, the operator resets the auditory alarm simply by pressing the acknowledge button.
9 4
Annunciator Panel
'1he major concern with large matrices is one of rapid location. '1his difficulty will be alleviated by identify-in3 each row and every other colum (see tM response to Finding #10).
10 3
Annunciator Panel
'1he annunciator matrices will be indexed by mans of a coordinate systcm utilizing letters to denote rows and ntubers to denote colums.
In order to facilitate rapid location of a tile, each colum will have its cwn unique s
ntnber (1 through 13). Iabels for eadi row and for every other colum will be attached to the panels. After the final position of eadt tile has been established, the annun-ciator response procedures will be revised to include tile s
^
coordinates.
11 4
Annunciator Panel All main control inard panels will be labeled in response to Finding 6.04 of the Reference. As tle annunciator panels are closely asswiated with the min control board panel section on which they are mounted and have the sam nteber, no further labeling is needed.
12 3
Mimic Lines:
'Ihe direction-of-ficw arrows referred to are on the mimic ~
ELECTRICAL DISTRIBlTfION lines connecting the unit auxiliary transformer to the sub-stations. When the Plant is generating power, the unit auxiliary will be supplying the substations. If the Plant i
Page 5 of 8 WOIF CREEK HINAN ENGINEERING FI:OINGS (HEP)
HEF(
Priority Subject disposition 12 (cont'd) trips off line, the substations could backfeed to the unit auxiliary until the reverse power relay doenergizes the feed. 'Ihis backfeed mode can only occur for a mxutun of 30 seconds.
In light of this, the arrows will be removed as they provide no additional information to the operator.
13 3
Mimic 7aine:
All munic lines will be inspected for correctness in shape ELECTRICAL DISTRIBITfION and security on board. Defective or missing lines will be replaced. 'Ihose that have come loose from the panel sur-face will be secured.
14 4
Mimic Lines:
A study is presently being conducted on the use of color in ELECTRICAL DISTRIBUfION the control board mimics.
15 3
Mimic Lines:
The witchyard mimic will be revised to eliminate possible ELECTRICAL DISTRIBUTION confusion that the 345 KV ties to the grid intersect the
- BENION STATION TD switchyard buses.
WEST BUS
- IACYNE STATION 'IO EAST BUS 16 3
Tag Out Labels
'Ibe tags observed on the control board are typical only of tags being used during construction and startup. Opera-tional phase tags will be smaller and designed so as to reduce the obscuring of labels and indicators.
17 4
Sanple Label:
Iabel engraving will be modified to make the letter "I" CIRC WATER and the number "1",
letters "C" and "G" and the numerals PUMP ICW01PA "6" and "8" discernible.
THS-CW001A 18 4
Iabel:
'Ibe control room convention on purp control switches is to GLAto WATER use the word "RUN."
'Ite Gland Water Pur:p IWG01PA will PUMP IUG01PA rmain unchanged and all switch labels that read " START" S'IDP-RUN will be changed to "RUN".
Page 6 of 8 WIP CREEK HINAN ENGINEERING FIEINGS (HEP)
IIEP(1)
Priority ( }
Subject Disposition 19 4
Labels:
Due to the mimic configuration, placing the 345 KV East SIMPLE IPOICA'IDRS and West Bus labels and the 4.16 KV Bus SL31 label above
- AIR BREAK SWI'ICI 345-163 their indicating lights would clutter and confuse the
- 345 KV WEST BUS munic layout. 'Ihese labels are closely associated with
- 345 KV EAST BUS their indicating lights and will cause no operator con-
- AIR BREAK fMI'IGI 345-45 fusion. 'Ihe runaining 5 labels will be relocated above
- AIR BREAK SWI'101 345-50 their displays or panel elements.
- 4.16 KV BUS SL31 IEL-SLO 25A
- NO 2 XFMR 69-13.8 KV
- NO 1 XEMR 69-13.8 KV 20 4
Iabels:
'Ihe existing circular label engraving will be changed tn a
- 13.8 KV VOLTS SELECTOR horizontal format.
~
1 HS-SLO 29
- 4.16 KV VOLTS SELEC'10R 1 IE-SLO 28 21 4
Sample Label:
All control switch escutcheons with tenporary tape labels
- GLAt0 WATER PlNP will be revised with pernanent labeling.
IWG01PA 1 HS-WG001A 22 3
Simple Indicators, Single filament incandescent lamps are used for position and J-Handle Lights, status indication.
'1 hey are preferred to noon bulbs since Pushbutton Lights:
neon bulbs provide lower level of illumination in a well ALL lighted control roan environment. 'Ihe single filament bulbs being used have an estimated 20,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> life span.
'Ihis is a result of the fact that the voltage supplied to the bulbs has been reduced approximately 7% to increase bulb life. A burnt-out bulb can be traced by observation alone. Each switch or grtup of lights for a omnponent contains at least two status lights, one for OPEN (RUN, ON) and the other for CIOSE (STOP, OPP). At any given time, at least one of the two lanps is lighted, otherwise a bulb or circuitry problem is indicated. 'Ihis can be remedied by either replacing both bulbs or repairing the circuit failure.
In addition, there will be an administrative requirement to
{
check the control boards to insure those lights that should be lit are lit.
--.-_ ~~~
Pd90 7 of 8 TOIE CREEK 1RNAN DEINEERIl0 FItODCS (HEF)
HEF( }
Priority ( }
Subject Disposition 23 3
Vertical teters:
Tbleranm zoms will be erked on all meters for whidi ALL tolerances exist. 'Ihe arkings will be applied so that they are in the plane of tM mter face to avoid parallax error.
24 5
Vertical Meters:
'Ihe plural nature of the word "pupps" indicates that these
- CIRC WATER PLMPS DISCHARGE mters are giving a collective reading. 'Ihe word " Header" PRESSURE 1P1-CWO12A will not be added as it would supply the operator with
- SERV WATER PLMPS DISGARGE unnecessary information.
PRESSURE 1P1-WS009A 25 3
Vertical Meters:
'Ibese mters will be relocated to a lower position.
- 13.8 KV BtB VOLTS IEL-SLO 29
- 4.16 KV BUS VOLTS IEL-SLO 28 26 5
Vertical Meters:
'1hese mters have graduation mrks every two units of the
- CIBC WATER PLMPS A, B, C scale with nmbered graduations every 30 units of tM scale
- SERV WrR PLMPS A, B, C (ex:
30, 60, 90....).
'Ihis scale configuration gives 14
- SERV WrR PtNPS graduation m rks between numbers. Ibwever, tM graduation DIS 01ARGE PRESSURE marks at intermediate units of ten (0 40, 50, 70, 80......)
- 13.8 KV BIE VOLTS are larger tM n the other 12 graduation e rks. 'Ihis allows the cperator to easily interpolate between the numbered gradu-ations.
27 3
J-Handle Controls:
In lowering the mters for Finding #25, a mw position, closer
- 4.16 KV VOLTS SELECIOR HS-SLO 28 to tM displays, will be chosen for the volt select switches.
- 13.8 KV VOLT SELECIOR IE-SLO 29 Vertical Meters:
- 13.8 KV BUS VOLTS IEL-SLO 29
- 4.16 KV BLE VOLTS IEL-SLO 28 -
28 3
J-Handle Control:
'Ibe 13.8 KV volt selector will be rewired and relabeled to
- 13.8 KV VOLTS SELECTOR IIS-SLO 29 matd1 the bus sequence in the mimics.
29 1
Pushbutton:
Plant procedures require that personnel be present at the BIDWN DISW blowdown discharge structure during the initiation of the STRUCP VALVE blowdown syst s.
Personnel will have direct audible indica-WARNING HORN tion of horn operation and will be in telephom or radio OHS-WLO37A contact with the control room.
.-4 3i Page 8 of 8 WOIF CREEK HLNAN ENGINEERING fit 0ING (HEF)
HEF( } Priority ( } Subject Disposition 10 5
Pushbutton:
The button is a m2nentary switch, on or off. 'Ihe horn's BLDWN DISCH function is to sound when activiated, but not continuously.
STRUCP VALVE
'Iherefore, the operating function is clear.
WARNING IORN
(}
Notes:
HEF 5 deleted by Essex.
i (2
Priority assigned by Essex.
Reference:
NRC memorandtyn to J. B. Youngblood from Voss A. Moore on Control Room Design Review / Audit Report, Callaway, September 28, 1981.
L
WOLF CREE'E IIUMAN ENGINEERIlO ?ItOINGS (HEP)
TABE 1 1
2 3
4 5
6 7
8 9
10 11 12 13 MUSil SL1 W/
MUDS lCWSH CWSH CMSil CIRC CNSH MASTER 345 KV A
SUW DC CTE SUW H2 BAY 1 BAY 2 BAY 3 WrR SUN SUW SUW 345 KV 69 KV A
TROUBLE IWR LOSS TROUBLE FID HI INERG INERG INERG INP TRIP TROUBLE
'IROUBLE TROUBLE
'lFOUBLE
'IROUBE SL11 MUDS CWSH CWSH GIRO SERV WrR SL3 UV/
SL4 UV/
SL2 BUS B
M/U XENR WrR 11 2 SCREEN SCREEN WrR 10R SERV WrR DC CTRL DC CTRL 13-40 il SWGR B
INP TRIP TROUBE LEV ID PRESS ID TROUBE BLOC PRESS ID PRESS ID PMP TRIP EWR IDSS EHR IDSS BKR TRIP BKR TRIP MUS'l SL11 UV/ SLSA CWSH CMSH GLA?O SERV WrR SERV WrR SL31 SL41 345 KV SL2 UV/
C SCREEN DC CTRL CIE O2 CL2 FAST WrR STR 1A STR 2A XFMR XENR BATr DC CTRL C
INERG IWR IDSS IMR IDSS FID IR LEAK WASH INP 'IRIP AP IIIHI AP HIHI TROUBLE TROUBLE TROUBLE IMR IOSS MUSIl SLIA MUSil ACID SL31 SL41 SPARE M4 SL2 BUS D
SCREEN XENR BATr O2 CL2 FEED BUS BUS XENR 13-42 D
TROUBE TEMP HI TROUBE PRESS ID TROUBE TROUBLE TROUBE THOUBE TROUBE BKR TRIP SLIA AUX RAW CL2 BID WTR FUEL OIL AUX BLH SL3A SL4A SL2 A/B/C E
M/U HDR BUS WrR N2 CL2 TREAT
'Il<
FUEL OIL XENR XENR XEMI E
tor FULL TROUBLE ENP TRIP 'IROUBLE LEAK TROUBE EV HIID TROUBE TIMP HI TEMP HI TIMP HI M/U VLV MUSH BDDS N2 002 ADMIN SilOP BID CWSH SEWAGE SL3A SL4A SL2 F
IIYD HVAC SUW TK PRESS IIVAC HVAC HVAC TREAT BUS BUS MJC F
PRESS ID TROUBE TROUBLE LEV ID HIID TNOUBE TROUBIE TROUBLE TROUBE TROUBE TROUBLE TROUBLE RK-014 SITE-REIATED
.