ML20054K565
| ML20054K565 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 06/29/1982 |
| From: | Koester G KANSAS GAS & ELECTRIC CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| KMLNRC-82-214, NUDOCS 8207020327 | |
| Download: ML20054K565 (11) | |
Text
.
KANSAS GAS AND ELECTRIC COM 'ANY THE E LE CYMC CCA4PANY QLtNN L M O t & T E ft m s +., %...
June 29, 1982 Mr. Ilarold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 KMLNRC 82-214 Re:
Docket No. STN 50-482 Rcf: 1) KMLNRC 82-153 dated 1/15/82 from GLKoester, KG&E, to llRDenton, NRC
- 2) KMLNRC 82-172 dated 3/10/82 from GLKoester, KG&E, to IIRDenton, NRC Subj: !!uman Factor Evaluation of Wolf Creek Site-Specific Control Room Panels, RLOl3 and RLO14
Dear Mr. Denton:
Reference 1 transmitted the independent preliminary design assessment performed by the Essex Corporation of the Wolf Creek site-specific control room panels RLOl3 and RLO14.
Reference 2 transmitted KG&E's responses to Essex Corporation's findings.
Transmitted herewith are KG&E's revised responses to Essex Corporation's findings. The responses have been revised to include clarifications which were discussed with R.J. Eckenrode of the NRC Staff. The schedule for correcting those items indicated in the revised responses will be based on their priority rating. This information is hereby incorporated into the Wolf Creek Generating Station, Unit No.1, Operating License Application.
Yours very truly, 3/ph ' #
/
8207020327 820629 N
DR ADOCK 05000402 PDR GLK:bb Attach gol cc: Mr. JBifopkins (2)
Division of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555 Mr. Thomas Vandel Resident NRC Inspector Box 311 Burlington, Kansas 66839 201 N. Market - Wocheta, Kansas - Maol Address: PO. Box 208 ) Wichita, Kansas 67201 - Telephone: Area Code (316) 261-6451
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h OATil OF AFFIRMATIOt3 4
STATE OF.KAf1SAS
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COUt3TY OF SEDGWICK )
I, Glenn L. Koester, of lawful age, being duly sworn upon oath, do depose, 4
state and affirm that I am Vice President - tiuclear of Kansas Gas and i
Electric Company, Wichita, Kansas, that I have signed the foregoing letter of transmittal, know the contents thereof, and that all statements contained therein are true.
KNISAS GAS Af3D ELECTRIC COMPA!IY ATTEST:
By 4h
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I Glenn L. Kocst'er b
Vice President - fluclear W.B. Walker, Secretary
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STATE OF KAtiSAS
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COUt1TY OF SEDGWICK )
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BE IT PEMEMBERED that on this 29th day of June, 1982 before me, Evelyn L. Fry, a tiotary, personally appeared Glenn L. Koester, Vice President - fluclear 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.
If3 WIT!1ESS WilEREOF, I have hereunto set my hand and affixed my seal the i
e and year above written.
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F elyn..rry,tiotag i
f-U C t.'.GlN 1
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JhbiSSion expires on August -15,1984.
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Page 1 of 8 1DIF CREEK HUfEN EtGINEERItG FItDIt0S (HT)
HEF Priority Subject Disposition 1
'Ibe site panel annunciators ham been extensively reviewed as part of the total control room annunciator prioritiza-tion program. Four major concerns were consideral in this revies. 'Ihey are:
Prioritization -
A scheme was developed whereby the relative importance of an annunciator will be apparent to the operator. Of the possible coding schemes, positon was selected as the best alternative. That is, annunciators near the tcp of the matrix are more important to plant safety than thase near the bottom. Annunciators indicating time-critical hazard-aus conditions are closer to the top than those that are less time critical. For example, an alarm indicating damage to a critical conponent would take precedence (be higher in the matrix) over one indicating a technical specification violation.
Functional Grouping -
Pnnunciators are grouped so that related ones are closely asociated with each other an3 are located near the re-lated MCB controls and indications. There similar annun-ciators exist for redundant components or trains of coupo-nents, these have been arranged in congruent blocks arranged left to right by train or component nunber. The prioriti-zation by position is observed within these functional groupings. Alarms 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 I
height to width ratio have been modified to improve legi-l bility of the annunciator engravings. 'Ihe use of larger i
Page 2 of 8 VOIE CREEK IIUMN1 EtCItEERItG FIIDItGS (IIEP)
IIEF Priority Subject Disposition 1 (con't) letters establishal an upper limit of three lines arx1 eight characters per annunciator tile. his necessitated a catplete revision of annunciator nomenclature.
Ikmenclature -
Nmenclature has been extensively revised to: a) improve 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 an1 miscel-laneous (see Table 1, attached).
We lake makeup alarm section is placed to the extrme left of the panel as these systms have no direct power block impact. Electrical distribution alarms related to lake systms are included in this grouping so that they are placed directly above their controls and indications. mis aids conplete evaluation of cause-effect abnormalities.
Miscellaneous site alarms are placal in a low priority position except for those alarms associated with hydrogen and oxygen. iiigh flow or low pressure in these systes is significant due to the potential hazard of these gases.
The plant cooling water alarm section consists of alarms relating to main circulating water and service water. The alarms showing a main circulating water purp trip or a I
suction bay mergency condition are placed at the top of the panel. These alarms indicate a loss of the condenser heat sink and have urmediate effects on plant operation. We alarms sinwing an abnormal differential pressure across the screens are arranged to form a sequential column with severity increasing towards the tcp of the board.
Page 3 of 8 IOIP CREEK IIUMAN DCINEERIfC FINDI!ES (IIEP)
IIEF( }
Priority Subject Disposition 1 (cont'd)
Site electrical alarms are placed to the right of the panel a> that they are adjacent to the power block electrical alarms on panel RK016. The higher voltage switchyard alarms are placed at the top of the alarm panel and the circulating water screenhouse electrical alarms are placed adjacent to the plant cooling water alarm groups.
2 3
Annteciators:
See llEP 1 above.
3 3
Annunciator engravings will be changed to bring the letter ALL IABEIS height-to-width ratio within the guidelines (NURIE 0700, 9/81, 6.3.3.5.2).
4 3
Annunciators will be reengraved using a stroke width of ALL IABEIS approximately.058" (per Finding 3.12 of Reference) and a 6.5:1 height-to-stroke-width ratio.
6 3
We annunciators on Panel RL014 will normally be acknowledged ANNUICIATOR TIIES frm the operator's console (RL001) rather than Panel RL015.
ANNUNCIA'10R ACKNOWLEDGE All tiles are easily read frm the operator's console.
7 3
Annunciator:
he silence function is incorporated in the acknowledge SILENCE 00NrBOL control. % is is desirable because it reduces the number and complexity of controls associated with the annunciators without any function loss or ambiguity. Wis feature reduces the visual seard time and memory requirements for the operator, enhancing overall performance. Each wing of the three main control board wirgs has two dedicated annun-ciator acknowledge controls. Each panel is readable frcm the acknowledge control location dedicated to that panel.
8 1
Annunciator:
If the time delay relay associated with an annunciator AUDIBIE ALAIN group times out before an alarm is acknowledged (adjustable frm 0 to 60 seconds, but will be adninistratively controlled to be no less than 10 seconds), that auditory device is silenced autmatically and will not reset until the acknowl-edge button is pressed. h is feature has no affect on the visual indications, whi& do have reflash capability on all windows with nultiple inputs. %e annunciator time-out feature is desirable in that it eliminates a distracting
Page 4 of 8 VOLP CREEK IIUMM EICINEERItG FINDItCS (llFF)
IIEP( '
Priority Subject Disposition 8 (cont'd) and repetitive chore durirv3 conditions of high stress, i.e., a time when several alarms are being generated in rapid sequence, as during a trip. The initial auditory signal alerts the operator of a problem. Allowing the timer to run out aM silence its initial aM subsequent auditory signals will reduce the need for extraneous activity (repetitively acknowledgirv3 alarms) and allow the cperators to concentrate on assessing the situation and taking corrective action. Once the immediate actions have been taken, the operator resets the auditory alarm simply by pressing the acknowledge button.
The Mministrative control for the time delay is through the permanent plant Calibration Procedures which will contain a statment similar to the following: " timer to be set at no less than 10 seconds."
9 4
Annunciator Panel Vertical demarcation lines will be added between columns 3 and 4 and between colunns 9 and 10.
10 3
Annunciator Panel
'Ihe annunciator matrices will be indexed by means of a coordinate systm utilizing letters to denote rows and nunbers to denote colunns. In order to facilitate rapid location of a tile, each colunn will have its own unique nunber (1 through 13). Labels for each row and for every other colonn will be attached to the panels. After the final position of eadi tile has been established, the annun-ciator response procedures will be revised to include tile coordinates.
11 4
Annunciator Panel All main control board panels will be labeled in response to Finding 6.04 of the Reference. As the annunciator panels are closely asst r, lated with the main control board panel section on which they are mounted aM have the same nunber, no further labeling is needed.
Page 5 of 8 LOLF CREEK HUMAN EtGINEERItG FItOItGS (HE)
HE Priority Subject Disposition 12 3
Mimic Lines:
The direction-of-flow arrows referred to are on the mimic ELECTRICAL DISTRIBlffION lines connecting the unit auxiliary transformer tu the sub.-
stations. When the Plant is generating power, the unit auxiliary will be supplying the substations. If the Plant trips off line, the substations could backfeed to the unit auxiliary until the reverse power relay deenergizes the feed. This backfeed mode can only occur for a maximtm of 30 seconds. In light of this, the arrows will be removed as they provide no additional information to the operator.
13 3
Mimic Line:
All mimic lines will be inspected for correctness in shape ELECTRICAL DISTRIBUTION and security on board. Defective or missing lines will be rcplaced. 'Ihose that have ccne 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 DISTRIBlffION the control Inard mimics.
15 3
Mimic Lines:
'Ihe switchyard mimic will be modified to eliminate possible ELECTRICAL DISTRIBUTION confusion that the station transmission lines intersect
- BENION S'IATION 'IO the switchyard buses by placing a gap between the station WEST BUS transmission lines aryl switchyard buses mimics.
' LA CYWE STATION 'IO EAST BUS l
16 3
Tag Out Labels An evaluation of average control board device size determined that for ccnmercial operation, the optimtn size for tags should be 3" by 1 7/8".
Use of this size tag will minimize the obscuring of labels.
17 4
Sanple Label:
Label engraving will be modified to make the letter "I" CIRC WATER and the ntuber "1",
letters "C" and "G" and the ntynerals PUMP ICWO1PA "6" and "8" discernible.
IHSMM001A
'f i
i w w 9
+,
Page 6 of 8 VOIE CREEK HUMAN ENGINEERING FINDIME (HEF)
HEF Priority Subiect Disposition 18 4
Label:
The control rocm convention on pm p control switches is to GLAND WATER use the word "RUN."
The Gland Water Ptynp ING01PA will PUMP ING01PA remain unchanged and all switch labels that read " START" S'10P-RUN will be changed to "RUN".
19 4
Labels:
Due to the mimic configuration, placing the 345 KV East SIMPLE IIDICA'IORS and West Bus labels and the 4.16 KV Bus SL31 label above
- AIR BREAK SWI'101345-163 their indicatiry3 lights would clutter and confuse the
- 345 KV WEST BUS mimic layout. W eso labels are closely associated with
- 345 KV EAST BUS their indicating lights and will cause no operator con-
- AIR BREAK SWI'IGI 345-45 fusion. The renaining 5 labels will be relocated above
- AIR BREAK SWI'IGI 345-50 their displays or panel elements.
- 4.16 KV BUS SL31 IEL-SLO 25A
- NO 2 XFMR 69-13.8 KV
- NO 1 XIMR 69-13.8 KV 20 4
Labels:
The existing circular label engraving will be changed to a i
- 13.8 KV VOLTS SELECIOR horizontal format.
1 HS-SLO 29
- 4.16 KV VOLTS SELECIOR 1 HS-SLO 28 l
21 4
Sample Label:
All control switch escutcheons with temporary tape labels
- GLAND WATER PUMP will be revised with permanent labeling.
IWG01PA 1 HS-WG001A 22 3
Simple Indicators, Single filament incandescent lamps are used for position and J-Handle Lights, status indication. They are preferred to neon bulbs since Pushbutton Lights:
neon bulbs provide lower level of illumination in a well ALL lighted control rocm environment. The single filament bulbs being used have an estimated 20,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> life span.
'1his 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 group of lights for a component contains at least two status lights, one for OPIN (RUN, ON) i i
Page 7 of 8 1rOLF CREEK IIUMAN EIGINEERI1G FINDItES (HEF)
IIEF Priority Subject Disposition 22 (con't) and the other for CIOSE (STOP, OFF). At any given time, at least one of the two lamps is lighted, otherwim a bulb or circuitry prcble is indicated. his can be remelied by either replacing both bulbs or repairing the circuit failure.
In addition, there will be an administrative requirenent to check the control boards to insure those lights that should be lit are lit. This check will be performed at each shift tumover (three times per day).
23 3
Vertical Meters:
Tolerance zones will be marked on all meters for which ALL tolerances exist. We markings will be applied so that
.they are in the plane of the meter face to avoid parallax error.
24 5
Vertical Meters:
The plural nature of the word "p mps" indicates that these
~
- CIRC WATER PUMPS DIS 01ARGE meters are giving a collective reading. We word " Header" PRESSURE 1P1-CW012A will not be added as it would supply the operator with
- SERV WATER PUMPS DISOIAICE unnecessary information.
PRESSURE 1P1-WS009A 25 3
Vertical Meters:
Wese meters will be relocated to a lower position.
- 13.8 KV BUS VOLTS IEL-SLO 29
- 4.16 KV BUS VOLTS IEL-SLO 28 26 5
Vertical Meters:
W ese meters have graduation marks every two units of the
- CIBC WATER PUMPS A, B, C scale with n mbered graduations every 30 units of the scale
- SERV WrR PUMPS A, B, C (ex:
30, 60, 90....).
This scale configuration gives 14
' SERV WrR PUMPS graduation marks between nmbers. However, the graduation DISOIARGE PRESSURE marks at intermediate units of ten (@ 40, 50, 70, 80......)
- 13.8 KV BUS VOLTS are larger than the other 12 graduation marks. his allows j
the operator to easily interpolate between the nmbered gradu-ations.
I 27 3
J-Handle Controls:
In lowering the meters for Finding #25, a new position, closer
- 4.16 KV VOLTS SELECIM HS-SLO 28 to the displays, will be chosen for the volt select switches.
- 13.8 KV VOLT SELECTOR HS-SLO 29 i
Page 8 of 8 VOLF CREEK IIUMW EtGINEERItG FINDItGS (IIE)
IIW Priority Subimt Disposition 27 (con't)
Vertical Meters:
- 13.8 KV BUS VOLTS IEL-SLO 29
- 4.16 KV BUS VOLTS IEL-SLO 28 28 3
J-flandle Control:
h 13.8 KV volt selector will be rewired and relabeled to
- 13.8 KV VOLTS SELECIOR IE-SLO 29 match the bus sequence in the mimics.
29 1
Pushbutton:
'Ihe " Cooling Lake Blowdown Procedure - SYSWL201" requires BLDWN DIS 01 that personnel be present at the blowdown discharge structure STRUCP VALVE (BDDS) during the initiation of the blowdown systen. 'Ihese
%RRNItG IIOIN personnel will be in contact with the control rocm either by OIIS-WLO37A a telephone located at the BDDS or by a hand held radio.
30 5
Pushbutton:
The button is a mmentary switch, on or off. The horn's BLDWN DISOI function is to sound when activated, but not continuously.
STRUCP VALVE Therefore, the operating function is clear, inINI1G llORN 1
The attached figure slows Panel RK014. ListM below are the site specific abbreviations used on this panel.
{
MUSII - Make Up (Water) Screen llouse MUDS - Make Up (Water) Discharge Structure BDDS - Blowdown Discharge Structure SUPV - Supervisory CWSil - Circulating Water Screen llouse CIRC - Circulating TREAT - Treatment SERV - Service liVAC - 11 eating, Ventilation, and Air CoMitioning ADMIN - Adninistration Buildirg
('
Notes:
!!EF 5 deleted by Essex.
(2)
Priority assignal by Essex.
Reference:
NRC memorand s to J.B. Youngblood from Voss A. Moore on Control Room Design Review / Audit Report, Callaway, September 28, 1981.
i DOIE CREEK IIUfW1 Et01NEERItG FItOItGS (!!EF)
TABIE 1 1
1 2
3 4
5 6
7 8
9 10 11 12 13 MUSil SL1 UV/
MUDS 0 011 GiSII G1Sil CIRC GiSil MASTER 345 KV A
SUW DC CTRL SUW II2 ImY 1 BAY 2 BAY 3 WrR SUW SUIV SUW 345 KV 69 hv A
TROUBIE IWR IDSS TIGBIE FID llI INERG 1:MERG DERG EY4P TRIP TIGDLE T100BLE TIG BLE TIG BLE T100BIE SL11 MUDS OGli OEli GIA?D SERV WrR SL3 UV/
SL4 UV/
SL2 BUS B
M/U XFMR WrR 11 2 SCREEN SCRCEN WrR IDR SERV WrR DC CTRL DC CTRL 13-40 il SWGR 11 IMP TRIP TROUBIE IEV ID PRESS IO TIGBIE BLOC PRESS ID PRESS ID INP TRIP IWR ID3S IUR IDSS BKR TRIP BKR TRIP MUSII SL11 UV/ SL5A 01Sil GISil GIA!D SERV WrR SERV WrR SL31 SL41 345 IN SL2 UV/
C SCREEt!
DC CTIL CPIL 02 CL2 FAST WrR STR 1A STR 2A XFMR XFMR IMTP DC CTRL C
DERG IWR LOSS IWR IDSS FID III IEAK WASil INP TRIP AP 11111I AP IIIllI TROUBIE TROUBLE TIOUBLE IWR IOSS MUSil SLIA MUSil ACID SL31 SL41 SPARE tU SL2 BUS j
D SCREE?!
XFMR BATP O2 CL2 FEED BUS BUS XFMR 13-42 D
TROUBIE TFMP III TROUBIE PRESS ID TROUBIE TROUBIE TROUBIE TIGBIE TROUBIE BKR TRIP SLIA AUX RAW CL2 BID WrR FUEL OIL AUX BLII SL3A SL4A SL2 A/B/C E
M/U IDR BUS WrR tI2 CL2 TREAT TK FUEL OIL XFMR XFMR XFMR E
fDr FULL TROUBLE INP TRIP TROUBLE TEAK TIGBIE LEV IIIID TIGBLE TEMP III 191P III TEMP III M/U VLV MUSII BDDS N2 002 ADMIN SIDP BID 01SII SEWAGE SL3A SL4A SL2 F
IIYD llVAC SUPV TK PRESS IIVAC llVAC IIVAC TREAT BUS BUS ICC F
PRESS ID TROUBIE TROUBIE LEV ID IIIID TROUBIE TROUBIE TROUBIE TROUBIE TROUBIE TROUBIE TROUBIE l
RK-014 SITE-REIATED
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