ML17297A906
| ML17297A906 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 10/07/1981 |
| From: | Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | Tedesco R Office of Nuclear Reactor Regulation |
| References | |
| ANPP-19117-JMA, NUDOCS 8110130206 | |
| Download: ML17297A906 (19) | |
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Unit 1~ Arizona Publ i Palo Verde Nuclear Station~
Unit 2E Arizona Publi Palo Verde Nuclear Station~
Unit 3r Arizona Publi AUTHOR-AFFILIATION Arizona Public Service Co.
RECIPIENT AFFILiIATION Assistant Director i for L'icensing 05000529.
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ÃUIIKIICP tBKZKIOQa GKOBIMKF P.o. SOX 21666 PHOENIX, ARIZONA85036 October 7, 1981 ANPP-19117 JMA/ECS Mr. R. L. Tedesco Assistant Director of Licensing Division of Licensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
Palo Verde Nuclear Generating Station
" (PVNGS) Units 1, 2 and 3
Docket Nos.
STN-50-528/529/530 File:
81-056-026; G.1.10
Reference:
ANPP-19099, E. E. Van Brunt, Jr. to R. L. Tedesco dated October 5, 1981
Dear Mr. Tedesco:
Attached is our response for clarification of items covered in the reference letter.
If you have any questions, please contact Ed Sterling on (602) 271-7280.
Very truly ours E. E. Van Brunt, Jr.
APS Vice President, Nuclear Projects ANPP Project Director EEVBJr/ECS/av Attachment cc:
J. Kerrigan (w/a)
P. Hourihan (w/a)
A. C. Gehr (w/a)
R. Ramirez (w/a)
A. Ramie-Smith (w/a)
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STATE OF ARIZONA
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COUNTY OF MARICOPA)
I; Edwin E. Van Brunt, Jr., represent'hat I am Vice President Nuclear Pro)ects of Arizona Public Service Company, that the foregoing document has been signed by me on behalf of Arizona Public Service Company with full authority so to do, that I have read such document
. and know its contents, and that to the best of my knowledge and belief, the statements made therein are true.
Edwin E..Van Brunt, Jp'.w"~'~
so I J WHg'o Sworn to before me this~~i~
ey of 1981.
otary Public My Commission expires:
~
~
~ 4
CLARIFICATIONS OF ANPP-19099, OCTOBER 5, 1981 LETTER ITEMS 1.
The results of studies called out in the "Corrective Action" columns of Attachment A HED 77 and 118 will be provided to the NRC 120 days prior to issuance of license.
2.
Enclosed is a revised Attachment A clarifying HED's 4, 30 and 104.
3.
Enclosed are revised sheets of Attachment B clarifying HED's 67 and 95.
4.
Enclosed are revised sheets of Attachment C clarifying HED's 94, 98, 103 and 109.
5.
Revised title on the first sheet of each attachment.
6.
To further clarify HED 53, in our lighting survey of the real Unit 1 control room glare measurements will be retaken of the CRT screens to determine if any change to the "Corrective Action" is needed.
This will be done 120 days prior to issuance of license.
7.
Item 4a For HED's 1, 2, 3 and 32, we are currently investigating other fixes for detecting lamp failures.
Lamp surveillance will be performed each shift.
8.
Item 7 There will be appropriate relamping procedures.
9.
Item 8 If the operator needs the discrete value for a parameter, other indicators on the panel will provide that value.
10.
Item 10 Will review under Item 12.
ll.
Item ll The addition of high speed printers will remain open pending review of system impact.
TABLE 3-2A HUMAN ENGINEERING DISCREPANCY SUI'&1ARY CATEGORY A (Safety;
~~fandatory Implementation)
HED No.
Discre anc Corrective Action Reaching annunciators to replace lamps (B01).
Units of measured parameter missing from all Foxboro displays.
Obtain stepladder for control room of suib<Llc constr vcr'< o~
4o pr~ve~+ boar h cont'acT.
Add engineering units.
15 25 Labels missing on "CR ESSENTIAL AHU FAN" switches (B02).
Switches too close to panel edge accidental activation (B03, 04, 06, 07).
Add labels.
Install switch protection devices (e.g.,
guard rail) or change knobs.
29 Inadequate indication of safety systems status (SIASy MSISp CIAS etc.)
on B05.
Add master indicator panel.
30 Logic for reactor trip buttons not clear (B05).
AJd i~s frucki ~r I
(nicer 66 Label not readable for CWP/
Bypass switch (B04).
Change to white letters on red background.'4 Wrong label color on "HOT LEG INJECTION B FLOW" (B02).
Change to green label.
76 Inconsistent terminology between SESS and board item labels (B02).
Change labels.
77 High Press Safety Injection Flow indication confusing on loss of one train (B02).
Flow indicator redundancy under study.
79 Mimic missing on CVCS items used during LOP (B03).
Add mimics.
80 Labels on CVCS charging pumps imply incorrect operation (B03).
Change labels.
TABLE 3-2A (Continued)
HED No ~
Discre anc Corrective Action 81 Annunciator legend incorrect for T-AVE and T-REF temperature deviation and for RC SYS TRBL (B04).
Correct window legend.
84 Missing labels on RAS ACTIVATION controls (B05) ~
Add labels.
86 Lacking adequate switch guards on reactor trip buttons (B05).
Change to deep-ring type button.
89 Inadequate SG level indication during manual auxiliary and main feedwater control (B06).
Add wide-range level indicators.
104 108
.Obscured label viewing on Poxboro displays on most vertical panels. L o,lrllng o~ Jva.l
[ wd i c ~Wc r c
~ y a.w 4 i g v o u S' Wrong location and lack of valve position indication on jog-open valves.
Relocate labels q,nJ m~kC.
Vn, a,w4iyuo uS, Relocate and add position indicators.
112 Lacking demarcation of all major systems on most boards'emark affected control boards.
118 Annunciator System has several deficiencies-Initiate study to determine corrections.
3-4
TABLE 3-2B HUMAN ENGINEERING DISCREPANCY
SUMMARY
CATEGORY B (Reliability 90% Availability Criterion; Mandatory Zmplamantatdon)
HED No.
Corrective Action 11 Labels missing on Electric Mimic Bus (B01).
Add labels.
17 Lacking wide-range pressure and level indication near pressurizer controls (B03).
Add wide-range indicator.
35 Incorrect color of ON/Off buttons on Generex panels (B06)-
Change pushbuttons to correct color.
40 Labels missing and non-descrip-tive on FW
& SR Systems Board (B06).
Add and correct labels.
45
'acking main generator trip alarms near controls (B06).
Move alarms to near controls.
46 Labels missing on MSR switches (B06) ~
Add labels.
59 One key-operated switch requires teeth pointing up (B03).
Orient switch for teeth pointing down ~
60 Missing NORMAL label on some key-operated switches.
Add label.
67 Lacking phone Coverage on some panels-68 Control room floor is hard.
Study effect of longer cords on simulator oy.
p r ov i 0 C cp+ker medt,n J'or g 4 p)vsfc pkoptc d'ovPd +f8 Install carpet.
'70 Diesel generator synchroscopes
~ 9 feet from controls (BOl).
Add synchroscopes near controls.
71 Wrong label on diesel generator Start/Stop switch (B01).
Change label.
83 SG level scales are 0-100% for both narrow and wide range indicators (B05).
Change scales to Engineering Units.
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TABLE 3-2B (Continued)
HED No.
Discre anc Corrective Action 87 PPS relay status lights are wrong color (B05).
Change to Mue lens.
88 PPS controls illuminated when OFF (B05).
Change to black lenses due to addition of 'logic alarm box.
95 96 Condensate low vacuum alarm location not convenient ore Jog should be dn Qo 7.
Reactor coolant pump and backup heater switches are similar and closely located (B04).
Nova c Ic.
iw o
805
+o Qog.
Change knob on backup heater switch.
100 Specular glare on Foxboro displays
, from polished surfaces.
Change to matt surfaces.
101 Varying specular glare on Foxboro displays from fexible surfaces-Change to rigid surfaces.
106 Lacking narrow range trend infor-mation on Foxboro recorders (B02).
Change to 2-speed recorders where needed 122 Uncomfortable knob on CMC switches for jog-valves.
Review compliance and criteria for Push-to-Stop switches.
~/
t
TABLE 3-2C HUMAN ENGINEERING DISCREPANCY CATEGORY C
(Reliability-Enhancement; Mandatory Implementation)
HED No.
1 Lack of distinction between lamp failure and status change in CMC switches.
Corrective Action I
gevtsw<w$
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2 Lacking lamp redundancy in CMC switches.
3 Lacking lamp test capability for CMC switches.
etym/ Lp<AQ gr J by~4} Ic 41IE.
.I Pev)em d>.5 iQ~
Pauli IXdm'C 5
Interchange of legend screens on Electric Bus panel (B01).
Change procedure to single-legend screen removal.
13
=
Sharp edges on book stops (B02, 07).
Round all edges and corners.
14 Interchange of legend screens on SESS panel (B02).
Change procedure to single-legend screen removal.
20 Confusing mimic of flow to and from reactor on CVCS panel (B03).
Change mimic to clarify.
21 Interchange of legend screens on CEDM panel and Reactor. Power cutback system (B04).
Change procedure to single-legend screen removal.
23 Wrong label on Reactor Coolant Pump 1B Start/Stop switch.
Change label.
31 32 Lacking valve position indication on demineralizer bypass jog valve (B05) ~
Lacking lamp redundancy on Generex panel (B06).
Add valve position indicator.
Rf Vlf&I <)
y>Y ZQI'f/p(I 33 Lamp removal is from back of Generex panel (B06).
Redesign for removal from front.
'f panel 3-7
TABLE 3-2C (Continued)
HED No.
Discre anc Corrective Action 47 Inconsistent terminology on alarm window for header pressure (B06) ~
Change alarm window.
49 High glare on Cooling Tower Fan Control panel displays (B07).
Change to matt finish displays.
50
'nterchange of legend screens on Cooling Tower Fan Control panel (B07).
Change procedure to single-legend screen removal.
51 Typing-over of data on multipoint recorders (B07).
Re~>ex J.~Tg gag i /') J 'C a t aecessa
~j~ +
4;7 J~T~
uje'.
52 Non-functional colored strips on some boards" Remove strips.
53 Glare on CRT screens.
54 Missing labels on CRT data display.
Install CRT hoods.
Reprogram to add labels.
55 Lacks label highlighting on CRT data display.
Reprogram to highlight labels.
56 Inadequate bookshelves.
58 Lack of,operator understanding of control board design.
63 Lack of distinction between legend switches and backlighted displays.
Add bookshelves.
Provide operator training.
'Provi 4c diffi~yviphi~p
~art-'<<~$ 0 Z~ipf,p r 4 n ck d >Pal a,yc, 64 Specular glare from all displays on lower 2 slopes of each board.
Use matt surfaces for these displays.
65 Excessive CRT brightness from room lighting (B01).
allow operator discretion on room lighting level.
69 Glare on SESS panel binders light-on determination.
Change to matt surface displays.
3-8
TABLE 3-2C (Continued)
HED No.
Discre anc Corrective Action 72 Use of green light brightness for faulted vs. normal status on Electric Bus (B01).
Ensure a clear distinction in light brightness.
73 Inconsistent terminology between H2 train alarms and control labels (B02).
Change alarm windows.
75 Lacking overload indications on ammeters for large pumps.
Add overload markings.
78 Non-conformance between SESS panel and control panel layouts (B02) ~
Change SESS panel layout.
82 Inconsistent label location for the four DNBR/LPD calculators (BOS).
Relocate labels.
85 Inconsistent alarm legends for linear power density (B05).
Change window legend.
90 Inconsistent alarm legends COND vs-CNDS on B06.
Change legend to. correct terminology.
91 Inconsistent terminology between alarms and controls for generator seal oil (B06).
Change alarm window legend.
92 Large size of Power Factor meters not consistent with importance.
(B06) ~
Change to smaller MEGAVAR meters.
93 Inconsistent mode select sequence of MSR switches (B06) ~
Change mode select lineup.
94 PMS trouble alarm location not convenient (Solg.
Move alarm to Bog.
97 Interference of Control Knobs at lower board slope change (B07).
M ove. knobs.
TABLE 3-2C (Continued)
HED No.
Discre anc Corrective Action 98 102 Glare on switch surfaces hinders light-on determination.
Moving scales in Foxboro displays.
Change to matt surfaces, og-adggaSt a mbgC'C fgyh+<<y levC l S Change procedures to preclude movement by operators.
103 Low light intensity on scales of Foxboro contro'llers.
105 Over-similarity in appearance of the 5 types of Foxboro controllers/displays.
109 Wrong label for alarm acknowledge button on Radiation Monitor Terminal Change to lighter colored filters o.n d i~ Vms figg-te a t 4'tag'+}gic M+>/S gg 4
~ ehgPg oVCnlthf Color code facing.
Change
+knee i*keir.
Lacking parameter units on Foxboro recorders.
Use pre-printed paper.
113 Uncomfortable key size on key-switches for jog-valves.
Change to larger keys.
114 More than 3 lines of text on several legends and indicators.
Reduce text where possible.
115 Missing mimics on Electric Mimic Bus (B01).
Add mimics.
116 Wrong colored lights on CPC mode indicators.
Change lenses.
117 Unnecessary location of Generator Move to miscellaneous cabinet.
Ground Voltmeter on B06.
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