ML20134H117
| ML20134H117 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 11/07/1996 |
| From: | Mccoy C GEORGIA POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| IEB-96-001, IEB-96-1, LCV-0788-H, LCV-788-H, NUDOCS 9611130535 | |
| Download: ML20134H117 (8) | |
Text
_ _ _ _ _.. _ _ _ - _
t Georgia Powtr Company 40 invirness Contir Parkway r
Post Offee Box 1295 Birmingham, Alabama 35201 Telephono 205 992 7122 GeorgiaPower C.K.McCoy the soutten electt systan Vice President, Nuclear
- Vogtle Project November 7, 1996 Docket No. 50-425 LCV-0788-H U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555 i
Gentlemen:
VOGTLE ELECTRIC GENERATING PLANT FOLLOW UP RESPONSE TO NRC BULLETIN 96-01 END OF UNIT 2 CYCLE 5 DRAG TEST DATA BEGIN'NING OF UNIT 2 CYCLE 6 ROD DROP TIME TEST DATA i
l UNIT 2 CYCLE 6 RODDED FUEL ASSEMBLY TYPE AND BURNUP DATA By letter LCV-0788 dated April 4,1996, Georgia Power Company (GPC) responded to NRC Bulletin 96-01. This response included commitments for control rod drop time testing following shutdown of Vogtle Electric Generating Plant (VEGP) Unit 2 Cycle 5, drag testing of Cycle 5 rodded assemblies, and control rod drop time testing of Cycle 6 rodded assemblies prior to Cycle 6 reactor startup. Drag test results and control rod drop time test results from tests performed prior to Cycle 6 reactor startup are contained in Enclosures 1 and 2, respectively. Results from control rod drop time testing following the shutdown of VEGP-2 Cycle 5 were submitted to the NRC previously by letter LCV-0788-E, dated September 13,1996. Letter LCV-0788 also contained a commitment to provide, afler VEGP-2 Cycle 6 criticality, a core map of Cycle 6 rodded fuel assemblies containing j
fuel type and burnup information. Enclosure 3 contains this information.
Enclosure I contains drag test results for all assemblies which were rodded during VEGP-2 Cycle 5. Drag tests were perfo:Tned using the same Rod Cluster Control Assembly (RCCA) that resided in the assembly during Cycle 5..All 53 assemblies exhibited low drag forces which were well within the drag force criteria contained in Westinghouse specification F-5.1, Instructions. Precautions. and Limitations for Handling Rod Cluster Control Assemblies and Core Component Assemblies. The drag force values contained in Enclosure I represent the maximum of the withdrawal and insertion drag values obtained for each assembly.
I contains control rod drop time test data for tests performed on the VEGP-2 Cycle 6 core prior to reactor startup. All control rods inserted fully. All rod drop times i
met the requirements of Technical Specification 3.1.3.4. Recoil was observed for all rods.
i
. c d }- (
9611130535 961107 T~ '
PDR-ADOCK 05000425' JE G
G orgiaPower A U. S. Nuclear Regulatory Commission l
Page 2 i
}
l contains a core map for VEGP-2 Cycle 6 indicating for each rodded location j
i the control rod bank identification, the assembly identification number, the beginning of l
cycle burnup, and the projected end of cycle burnup. Enclosure 3 also contains a table of i
l the physical assembly characteristics of the two regions of fuel in Cycle 6 which contain control rods.
l Early in Cycle 6, on October 14,1996, and again on October 23,1996, VEGP-2 tripped, I
and timely complete control rod insertion was confirmed per normal trip response procedures. The VEGP-2 Cycle 6 core was at cycle average burnups of approximately 41 MWD /MTU and 319 MWD /MTU, respectively, at the time of the trips. Because all y
control rods inserted fully, and consistent with our commitments in letter LCV-0788, no additional control rod testing was performed.
t i
l All actions requested in Bulletin 96-01 and committed to by GPC in letter LCV-0788 have
'f now been completed and results transmitted to the NRC. Therefore, GPC considers that i
no further actions or reporting are required by Bulletin 96-01 unless incomplete control I
rod insertion is observed at VEGP, l
Sincerel r
C. K. McCoy l
i i
1
- CKM/SH-K/gmb '
Enclosures-l 1
- 1. Vogtle-2 Cycle 5 Drag Tests Results During Refueling Outage i
1
- 2. Vogtle-2 Cycle 6 BOC Rod Drop Time Test Results
of Physical Characteristics of Rodded Assemblies 1
i
l i
f '
GeorgiaPower1 i
H U. S. Nuclear Regulatory Commission Page 3 l
i I
c(w): Georuia Power Company l
Mr. J. B. Beasley, Jr.
Mr. M. Sheibani
)
NORMS l
U. S. Nuclear Regulatory Commission l
Mr. S.' D. Ebneter, Regional Administrator
{
Mr. L. L. Wheeler, Licensing Project Manager, NRR Mr. C, R. Ogle, Senior Resident Inspector, Vogtle l
l l
i i
i 4
l l
l-
m
_m._
i
~
ENCLOSURE 1 l
VDGTLE 2 CYCi F E DRAG TEST RESULTS DURING REFUFt ING DUTAGF l
Maximum Max Thimble Cycle 5 Assembly 8umup Dashpot Drag Tube Drag RCCA fMWD!MTU)
Burnun Shanna FlA ID flhal flhui Bank ID EL EOC5 EOC4 EOC5 l
SS05 28 11 C
19800.5 43522.0 1.01 1.07 l
SS08 32 10 C
19949.3 43918.9 1.02 1.08 l
SSO9 28 7
C 20095.4 44224.5 1.03 1.09 i
SS10 23 7
C 19724.9 43758.8 1.01 1.08 l
SS44 37 6
D 27007.6 48241.1 1.38 0.96 5S13 28 8
D 23901.5 47234.3 1.22 1.05 5S14 27 6
D 23730.1 47214.2 1.21 1.06 SS27 39 '
S D
24152.0 47577.9 1.23 1.05 5S29 30 7
D 23707.5 46960.8 1.21 1.05 i
SS39 22 4
SA 26752.2 39886.4 1.37 0.59 SS40 31 7
SA 26733.7 40055.6 1.36 0.60 SS46 25 3
SA 26819.2 40022.5 1.37 0.59 SS47 31 5
SA 26705.6 39889.9 1.36 0.59 SS35 22 2
SA 26947.9 40182.8 1.38 0.60 SS37 29 10 SA 26906.3 40483.5 1.37 0.61 SS42 35 3
SA 26852.7 40437.1 1.37 0.61 SS49 26 6
SA 26801.1 40017.0 1.37 0.59 ST60 57 6
A 29895.0 1.35 ST69 48 2
A 29802.4 1.34 ST79 37 8
A 29983.0 1.35 ST82 39 7
A 29836.6 1.34 ST15 33 7
B 25856.9 1.16 ST21 23 5
B 26133.4 1.18 i
5T30 24 7
B 26411.8 1.19 ST32 27 6
B 25701.0 1.16 ST13 27 3
B 25667.8 1.16 ST14 30 5
B 25425.1 1.14 BT27 20 4
8 25819.7 1.16 5T29 18 3
B 25447.8 1.15 ST17 19 3
C 26401.0 1.19 ST22 26 5
C 26571.5 1.20 ST23 25 5
C 26291.9 1.18 l
I ST26 37 3
C 26481.1 1.19 l
ST34 53 10 SB 29738.7 1.34 l
ST35 47 5
SB 29599.3 1.33 i
ST39 33 5
SB 29536.9 1.33 l
5T43 52 2
SB 29523.5 1.33 l
ST36 25 6
SB 29593.4 1.33 ST38 28 4
SB 29485.8 1.33 ST40 32 5
SB 29310.2 1.32 ST42 64 6
SB 29369.4 1.32 I
l l-ST56 52 4
SC 29042.8 1.31 l
ST63 40 5
SC 29360.3 1.32 ST77 49 5
SC 29450.5 1.33 ST81 39 4
SC 29306.4 1.32 ST55 56 5
SD 29757.1 1.34 ST72 46 8
SD 29556.3 1.33 ST84 34 7
SD 30344.7 1.37 ST86 45 5
SD 30050.3 1.35 5T33 45 5
SE 29282.1 1.32 ST37 59 9
SE 29228.1 1.32 ST41 60 6
SE 29439.4 1.33 ST44 39 8
SE 29213.0 1.32 EOC4 BURNUP 19596.5 t
EOC5 BURNUP 22214.4 i
i i
E i
ENCLOSURE 2 l
/
VOGTl_F.2 CYCLF S ROC Ron DROP TIME TEST RESUL Tf(
Cycle 6 Cycle 6 AssemWy Burnup Cycle 5 Rod Drnn Timme I
RCCA RCCA (MWD /MTU)
Burnup Deshpot Entry - Turnaround
?
FIA ID Bank ID Location EOCE/RocC Sharina (ms C imanel p
i-STOS C
K06 20937.2 0.94 1E02 2122
)
ST08 C
K10 20909.1 0.94 1S96 2136 ST09 C.
F10 21235.4 0.96 7606 2146~
j ST10-C F06 21041.3 0.95 1644 2164 ST54 D
M04 29512.0 1.33 1634 2184 i
ST57 D
M12 29181.1 1.31 1572 2152 j'
ST67 D
D12 29334.5 1.32 1584 2184
-l ST71 D
D04 29360.4 1.32 1574 2164 i
ST58 SA PO4 29661.6 1.34 1628 2158 ST64 SA B12 30019.8 1.35 1570 2120 ST65 SA M14 30193.3 1.36 1606 2196 ST73 SA D02 2b833.8 1.34 1636 2226 7
l ST61 SA D14 30025.7 1.35 1656 2186 r
ST78 SA P12 30114 2 1.36 1588 2138 i
ST80 SA M02 29823.3 1.34 1580 2150 i
l 5T85 SA B04 30074.3 1.35 1628 2188 b
l ST60 SE MO8 29895.0 1.35 1590 2150 ST69 SE H04 29802.4 1.34 1612 2162 5T79 SE H12 29983.0 1.35 1606 2126 i
5T82 SE D08 29836.6 1.34 1640 2160 SU58 A
H06 0.0 N/A 1582 2142
-t SU66 A
F08 0.0 N/A 1614 2134 SU78 A
H10 0.0 N/A 1656 2146 SU85 A
K08 0.0 N/A 1612 2142
?
SU15 B
K02 0.0 N/A 1578 2098 j.
SU16 B
F14 0.0 N/A 1604 2144 5U19 B
P10 0.0 N/A 1562 2122 5U2C B
B06 0.0 N/A 1590 1140 bu27 8
K14 0.0 N/A 1580 2120 l
l SU29 B
P06 0.0 N/A 1566 2106 5U34 B
F02 0.0 N/A 1594 2124 i
i
- SU37 B
B10 0.0 N/A 1650 2150 l
l.
SU13 C
B08 0.0 N/A 1622 2122 SU18
-C H14 0.0 N/A 1608 2118 SU23-C P08 0.0 N/A 1558 2078 5U24 C
H02 0.0 N/A 1564 2114 l
SU69 D
H08 0.0 N/A 1600 2120 1
- SU56 SB J03 0.0 N/A 1614 2174 i
SU70 SB C07 0.0 N/A 1584 2124 5U73 SB G13 0.0 N/A 1628 2158 SU76 S8 N09 0.0 N/A 1580 2230 SUS 1 SB J13 0.0 N/A 1646 2156 SU59 SB G03 0.0 N/A 1650 2200 l
SU71 SB N07 0.0
. N/A 1612 2112 l
5U75 SB C09 0.0 N/A 1596 2146 l
l' SU46 SC C11 0.0 N/A 1604 2104 l
SU60 SC L13 0.0 N/A 1630 2170 1
5U72
'SC E03 0.0 N/A 1600 2110 SU82 SC N05 0.0 N/A 1550 2090 SU43 SD LO3 0.0 N/A 1618 2158 SU64 SD E13 0.0 N/A 1630 2160 SU65 SD C05 0.0 N/A 1608 2148 5U84 SD N11 0.0 N/A
.1588 2128 4
i EOC5 BURNUP
.22214.4 l
u A.
+
a--
e,.
m 4
i+.-
m a.
-.m.
>_.-am-m a
.i D
e 4
m e4 a
i i
i 1
1 ENCLOSURE 3 1
)
l i
t
Vogtle 2 Cycle 6 R
P N
M L
K J
H G
F E
D C
B A
1.
SA B
C B
SA sTs0 suis su24 sus 4 sT73 29824 0
0 0
29834 43483 27048 27898 27063 43s18 SD SB SB SC 7j sus 3 sus 6 sus 9 surt 0
0 0
0 29595 30022 30036 29618 SA D
SE D
SA sTs4 sT54 sist sT71 s78s 29662 29s12 29002 29360 30074 43s18 51996 51478 51996 43483 SC SD su82 Suts 0
0 29618 2959s B
C A
C B
su29 sTOs susa sT10 su2s 0
20937 0
21041 0
v 27063 44040 29941 44040 27048 SB SB su71 su70 0
0 7
30036 30022 C
SE A
D A
SE C
su23 sT60 su8s suG9 suG6 5782 suis 0
29895 0
0 0
29837 0
27898 s1478 29941 2980s 29941 51478 27898 SB SB O
sur6 su7s O
O
]
30022 30036 B
C A
C B
suis sTOS suT8 sTOS Su37 0
20909 0
21235 0
2Ma8 44040 29941 44040 27063 SD SC sus 4 sua6 1
0 0
'{ '
2959s 29618 SA D
SE D
SA sT78 sis 7 sT79 sT67 sTs4 30114 29181 29983 2933s 30020 43483 s1946 51478 51996 43518 SC SB SB SD
[
Y l
l.EG D D O
29618 20036 30022 2959s 1
SA B
C B
SA siss su27 suis su16 sm
- ROD BANK 30193 0
0 0
30026
-ASSY. NUMBER 43sts 27063 27898 27048 43483
-CURR.BURNUP*
-PROJ.BURNUP 1
OEOC6**
- Actual as of 10/01/%
j (MWD /MTU)
- liased on Iksign
i PHYSICAL CHARACTERISTICS OF RODDED ASSEMBLIES t
VOGTLE UNIT 2 CYCLE 6 REGION ST REGION SU l
Assembly Type VANTAGE 5*
VANTAGE 5*
l i
Clad Material Zircaloy-4 ZIRLO*
Grid Material l
Top grid Inconel-718 Inconel-718 l
l Mid-span grids Zircaloy-4 Zircaloy-4 Bottom grid inconel-718 Inconel-718 l
l Protective bottom grid N/A Inconel-718 Guide Tube Material Zircaloy-4 Zircaloy-4 l
l Guide Tube O.D. (inches)
Above dashpot 0.4740 0.4740.
i At dashpot 0.4300 0.4300 l
l=
Guide Tube I.D. (inches)
Above dashpot 0.4420 0.4420 At dashpot 0.3970 0.3970 g
l
- 17x17 assemblies with optimized fuel rod O.D. of 0.360 in. and with intermediate flow -
mixing (IFM) grids l
l