ML19338F390
| ML19338F390 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 09/05/1980 |
| From: | Janecek R COMMONWEALTH EDISON CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-02, IEB-79-2, NUDOCS 8010200282 | |
| Download: ML19338F390 (17) | |
Text
..
Conunonwealth Edison y
one First Nanonat Plaza. chica;o lilinois Accress Reply to: Post Office Sox 767
,(
Chicago, Illinois 60690 September 5, 1980 Mr. James G. Keppler, Director Directorate of Inspection and Enforcement - Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137
Subject:
Dresoen Station Units 2 anc 3 Quad Cities Station Units 1 anc 2 Zion Station Units 1 and 2 Additional Response to IE Bulletin 79-02 NRC Docket Nos. 50-237/249, 50-254/265 and 50-295/304 References (a):
D. L. Peoples letter to J. G. Keppler dated February 19, 1980
Dear Mr. Keppler:
Pursuant to an NRC request at our December 13, 1979 meeting in Betnesda, Md. CECO. has performed load tests on concrete expansion anchors on all accessiole safety related piping systems at Dresden, Quad Cities, and Zion Stations.
Attached are tabulations of the relevant test data for the respective stations.
This cata is a final update of the information presentec in Bethesda curing the December 13, 1979 meeting.
This data represents a 95% confidence level of less : nan 5%
defective (failed) anchors on a station basis.
This is consistant with previous CECO. committments to the NRC regarding the "95-5" criteria presented in Reference (a).
The results of the expansion anchor test program have shown that the installation of concrete expansion anchors at Zion,
'Dresden, and Quac Cities Station were acceptable.
Very few loac
. test-failures versus the. number of anchors testeo were observed.
In addition, during the course of the inspection process, a large number of oversized / flame cut holes were discovered in the base plates.
This discovery led to the inspecton of all base plates on,
-sa fety-related piping. systems for oversized / flame-cut holes.
This inspection process-is almost complete, at all operating stations, anc where oversized / flame-cut holes were encountered, a steel plate-washeriwa; inserted.
In the case of shear loading on the plate, tne
. plate washer was welded to the base plate.
SEP 9 1986 8010200 U1 h
S e
w s
' Commonwealth Edison -
Mr.' James G.~Keppler, Director.
LSeptember. 5,11980 Page 2
~
Please address any' questions.concerningLthis'matterEto tnis office.
Very truly yours, Robert F. Janecek-
. Nuclear Licensing Administrator Boiling Water Reactors-cc:
Director,. Division of:. Reactor OperationstInspection RIII Resident Inspector, Dresden RIII Resident Jnspector, Quad Cities RIII Resident Inspector, Zion o
i F
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t ZION PLATES INSPECTED PLATES-
-PLATES HANGERS UNIT SYSTEM IN SYSTEM INSPECTED IN SYSTE 1
BD 136 63.
'107 31 275 RC 107
'47 221-
.FW-105 40
-252' MS 19 8
212 RH 59 17 125 SI 327 148 537 SW 183 25' 326 VC-260 154 347 1
TO tai.S 1,536 646 (42%)
3,345 2
BD
'113 9
210 CC.
395 42 470 CS 119 17 296 DT' 71 8
66 FW 92 12 252 MS 107 14
'212 RC
~86 9
211 RH 59 29 92'
'SI 279 26
311 29 474
-2
-TOTALS 1,647 212 (12.9%)
3,027 1&2
' TO TAL'S.
3,183
_858.(27%)'
6,372' i
,g.
-.m o
m
- Li
- ....v i
. ZION i
LOAD' TEST.
LOAD TESTED FAILED-TEST' ANCHORS ANCHORS
- UNIT'
' SYSTEM 1
BD.
58
'O CC 119 3
CS 16 1
RC 53 2
FW 21 0
}.
MS'
-4 0
.. R H 16 0
i-
.SI 134 1
SW~
19 0
VC 179 1
4 4
[
1 TOTALS 619 8 (1.3%)
i t
2' BD' 9
0
(
CC 41 0
1-CS-22 0
.DT 3
0 4
FW 10 0
MS 17
.0 RC-8 0-
-RH-42 6-n SI 32 3
i SW' 19 2
VC 28 0=
4
.2 TOTALS'
- 231-11~(4.8%)
1&2 TOTAi.S
'850 19 (2.3%)
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'7 6
=
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i 1
ZION THREAD ENGAGEMENT j
BOLTS-BOLTS
< MIN.
UNIT-SYSTEM INSPECTED
'3 i
- 1-80 179 26 h
.363 0
CS 55 3
RC 129 FW' 75 3
3 MS' 24 RH 45 1
SI 469 33 4
1 1
= TOTALS 1,920 2
80 36 0
-60 3
DT 8
0
. FW -
39 0-MS' 34 0
-l'
.RC 26 1
RH 87 SI 93 0
SW-53 0
4 VC 96 2
TOTALS-
-676 12 (1.8%)
11&2 TOTALS 2,596 117 (4.6f.)
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ZION SHELL PROJECTION 1
SHELLS SHELLS SHELLS SHELLS
' UNIT SYSTEM INSPECTED PROTRUDING LOAD TESTED
'FAILEO.-TEST, 1
B0 172 36 9
0 L
CC-
'344 18
-5 0
CS 50.
- 16 14 1
,RC-
'134 4
4 0
-FW 78 8-0 0-l-
MS 24 4
'O O
l RH 144 11 3
-0
-SI' 453
'68 11 0
SW 86' 10 0
0 L.
VC 403
-49 14 1
1 60 2 (3.3.
i 1
. TOTALS.
'1,788 224-(12.5%)
2 80.
33-
.4 1
O CC 130 11' 5
0 CS 60 18-5 0
L DT-
-8
.0 0
0 FW.
39
'9 2
0 L
MS-
'34 2
0 0
ki 30 4-1 0
- RH 99 17~
8 0
SI 92 13-4' O
SW 49, 7'
1 0
L
-VC 96 13 3
0~
2 TOTALS.:
670 98 (16.0%)'
30 0 (0%)
L T1&2-LTOTALS
- 2,458 3'22.. ( 13.1% )
90
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r ZION ANGULARITY BOLTS BOLT)
UNIT SYSTEM INSPECTED
>a 1-BD 244 8
CC 426 16 CS 139 17 RC 192 11 FW.
140 13 MS 23
'4 RH-71 7
SI 572 36 SW~
104 16 VC 538 40 1
TOTALS 2,449 168 (6'8%)
2 BD 36 1
OT 20 0
FW 44 4
MS 44 4
' ~
.RC 34 0
RH 112 11 SI' 113 11 SW-74 14
'VC 106 3
2
' TOTALS 795 66 (S.3%)
1&2
. TOTALS 3,244 234 (7.2%)
i l
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QUA0 CITIES PLATES INSPECTED
~
PLATES PLATES HANGERS UNIT SYSTEM-IN SYSTEM INSPECTED IN SYSTEl CS 33 13 51 FW 4
0 12-
-HPCI-94 39 112 MS 17 2
19 RCIC 2
1 8
RHR 83 16 148 SBGT 89 41 98 SW 140-54 169 1
TOTALS 462 166 (35.9%)
.617 2
-77 MS 2
0 19 RCIC 4
4 9-RHR 112 48 153.
RWCU 1
0 14 SBGT 24 19 32 SW' 55 30 83 2
' TOTALS 296 139 (47%)-
445 1&2 TOTALS 758 305 (40.2%)
1,062
.... r. :
i 00AD CITIES-LOAD TEST UNIT ~
ANCHORS-ANCHORS SYSTEM LOAD TESTED FAILE0 TEST 1
CS 14 0
FW 0
]
.HPCI 42 0
MS~
0 RCIC 1
1 RHR' 24 1
SBGT 44 0
4 S W '.
37 0
1 TOTALS 162 2 (1.2%)
2 CS-19 0
1 HPCI 14 0
i MS 0
RCIC 4
RHR 74 0
RWCU 0
SBGT.
10 0
2 SW
- 25 0
2 TOTALS 146 0-4 1&2 TOTALS
'308 2 (0.7%)
i 7
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4 4
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4 F
1 DRESDEN SHELL PROJECTION SHELLS SHELLS SHELLS-SHELLS UNIT
-SYSTEM
' INSPECTED.
PROTRUDING 8.0AD TESTED FAILE0 TEST i
2 CS' 128 7
7 0
i
.CRD
. 0 1
HPCI 146 2
2 0
IC 18 3
.3 0
LPCI 293 1
1 1-2 PS 18 0
RBCCW 0
I RF.
3 0'
RSC 0
1 SBGT 20 1
1
'O SW 94 0
2 TOTALS 720 14 (1.9%)
14 2 (7.1%
3'
'CCSW 2-0
.CR0 0-CS 99 0
4 i
'HPCI 191 0
i IC 6
0 LPCI 163 1
1 1
P S -'
3
.0 SBGT 5
0 SLC 0
-SW 39
-2 2
0 3!
- TOTALS-408-3-(.7%)
3 1 (33.3
- 2&3'
-TOTALS
- 1,128 17'(1.5%)
17 3 :(11.E' 4
t 1
Y t'y'
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. s.<
e-DRESDEN-
-ANGULARITY BOLTS BOLTS.
UNIT
-SYSTEM INSPECTED
> 4' 4
2 CS 180 9
CR0 16 2
HPCI 269 15
.IC 18 0
LPCI.
343 5
PS 22 2
RBCCW 0
RF 4
0 RSC 0
SBGT 53 5
SW~
166 13 2
TOTALS l',071 51 (4.8%)
3 CCSW 16 0
CR0 16 0'
CS 137 5
HPCI 146 4
-IC 12 0,
LPCI 291 11 j.
PS 3
0 SBGT 14 0
'SLC 0
SW-90 6
1 3'
TOTALS 734 26.(3.5%)
2&3 TOTALS 1,805 77 (4.4%)
1 4
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d'
t u
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l QUA0' CITIES l
!~
-- THREAD ENGAGEMENT i
l BOLTS BOLTS UNIT-SYSTEM-INSPECTED 40 M I N.
l 1-CS 22 0
l FW 0
l HPCI 58
-4 MS 0
RCIC 1
RHR 23 0
l..
SBGT 76 0
l 5W 84
' O l
l l'
TOTALS 264 4'(1.5%)
2 CS 21' 0
HPCI 32 3.
MS 0
107 2
-RWCU 0
SBGT 21 0
SW 40 1
2 TOTALS-232
- 6.(2.6%)'
l ~
1&2/
TOTALS 469
' 10-(2.0%).
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/,00AD' CITIES
~
SHELL' PROJECTION.
i j.
SHELLS.
SHELLS.
UNIT
. SYSTEM INSPECTED PROTRUDING 1
CS 22 0
- FW.
0 HPCI 53 0
MS 0
i RCIC 0
RHR 22 0
SBGT 76 0
SW 84' 0
i ~
1 TOTALS 257 0
3 2
CS 22 7
HPCI 32 0
MS 0
4 RCIC
-11 RHR 108 1
RWCU 0
SBGT-21 0
SW-41 0
4 2
TOTALS 235 8 (3.4%)
y 1&2' TOTALS 492 8 (1.6%)
- " f. :
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^
ANGULARITY-BOLTS 80LTj 1-
-U_ NIT' SYSTEM
' INSPECTED
>4
'l ~
C's 41 3
FW-0-
1 HPCI 107 5;
'MS 0
i RCIC
.4
'RHR 51 4
170 2
SBGT' 196 3
-1 TOTALS 569 17 (3.0%)
4
'2 CS 38 0
'HPCI 60 1
i MS 0
RCIC 12 1
RHR 144 1
RWCU 0
SBGT 78 2
-106 3
.2
~
TOTALS 438
.8 (1.8%)
'1&2 TOTALS-
'1,007 25 (2.5%)'.
J. -
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~.,
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a
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+,.. -.
DRESDEN*
PLATES' INSPECTED PLATES ~
PLATES HANGERS.
. UNIT-SYSTEM IN SYSTEM' INSPECTED IN SYSTE' 2
8 4'
~78 HPCI-99
-78 134
-IC 16~
5 25 LLPCI-88 83 114 PS 14 7
19 RBCCW 0
0 8
RF-1 1-20 RSC 3
0 14 SBGT.
32 16 28*
SW' 91 46 75 2
TOTALS 397 283'(71.3%)
580 3-CRD 8
4 37-CS
13 2
25 LPCI 65 53 108.
'PS 8
1 19 SBGT 4
4 See-Unit 1 SC 2
2 12 SW 75 32 61-3-
JT0TALS 286 168 (58.7%)
429
- 2&3 TOTALS-
'683
'451 (66.0%)
1,009
'
- UNITS.2L&.3:
W r
v
~
. y,...;.
w 4
1 J
/-
~DRESDEN
~ LOAD T$5T ANCHORS ANCHORS
- UNIT-SYSTEM LOAD TESTED FAILED TEST.
.2 CS' 143' CR0 4
1
.HPCI 169-
.0
-IC 13 0-
- LPCI.
320
-4 o
-PS-18' 0
RBCCW 0
RF 4
-0 RSC-0 SBGT 20 O
SW 85 0
2
. TOTALS 781 5 (.6%')
2 CCSW1 2
0 CRD.
'S 0
CS~
97 3
HPCI 97 0
'IC 12.
0 y
-166 1-PS 3
0 ':
58GT.
5 0
SLC 0
SW-40 0
13
.TO TAL S __
427 4 (.95%)
.2&3 TOTALS l',208
_. 9 (.8%)
i i
a
.o~
-... =.. -
...... : c.
t
-DRESDEN THREAD' ENGAGEMENT BOLTS-BOLTS UNIT
' SYSTEM-INSPECTED
<. MIN.
2 CS
.122 1-CRD 0-HPCI 143 0.
-IC'-
18 1
LPCI~
294 1
-PS 18 0
RBCCW 0
.RF 3
0'
-RSC 0.
-SBGT 20 0
.94 0
2 TOTALS 712 3 ~ (.- 4 % ).
- 3 CCSW-2 0
CRD 0
CS 100
-1 LHPCI 91 0
-IC 6-0-
.LPCI 162 2
PS
~3
. SB GT-.
5 0-
.SLC.
-0 SW.
39 0-3 TOTALS 408
-3 (.7%):
2&3^
TOTALS 1,120 6-(.6%)-
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