ML20080A784
| ML20080A784 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 01/30/1984 |
| From: | Mills L TENNESSEE VALLEY AUTHORITY |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8402060261 | |
| Download: ML20080A784 (11) | |
Text
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TENNESSEE VALLE) AUTHORITY CHATTANOOGA, TENNESSEE 37401 400 Chestnut Street Tower II January 30, 1984 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Dear Mr. Denton:
In the Matter of the
)
Docket No. 50-259 Tennessee Valley Authority
)
By letter from D. B. Vassallo to H. G. Parris dated September 21, 1983, we received a request for additional information regarding inspection and repair of pipe cracks at Browns Ferry Nuclear Plant unit 1.
My 3etter to you dated October 19, 1983 submitted that information needed to support unit startup. That letter stated that the remainder of the information requested would be submitted by February 1, 1984. Enclosed is our supplemental response to that request.
Very truly yours, TENNESSEE VALLEY AUTHORITY
~
L. M. Mills, Manager Nuclear Licensing Subscribed and sworn tg before me this 3 0 1 day o W.L1Wetop 1984.
L y s -~ o ?,Qg Notary Public g
My Commission Expires
/
Enclosure oc (Enclosur3):
U.S. Nuclear Regulatory Commission Region II ATTN: James P. O'Reilly, Regional Administrator 101 Marietta Street, NW, Suite 2900 Atlanta, Georgia 30303 Mr. R. J. Clark Browns Ferry Project Manager U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814 6N 8402060261 840130
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PDR ADOCK 05000259 G
PDR j
An Equal Opportunity Employer d
ENCLOSURE SUPPLEMENTAL RESPONSE TO NRC LETTER FROM D. B. VASSALLO TO H. G. PARRIS DATED SEPTEMBER 21, 1983 BROWNS FERRY RUCLEAR PLANT UNIT 1 ITEM 1 f
RADIATION EXPOSURE i
The radiation exposure incurred by the NDE examiners for the unit 1 cycle 5 outage, excluding repair examination, was approximately 86 man-rem.
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ITEMS 3(c) and 3(d)
STRESS RULE INDEX (SRI) AND CARBON CONTENT RECIRCULATION PIPING SYSTEM BROWNS FERRY UNIT 1 Carbon Carbon Weld No.
SRI Content GR-1-11 1.65 0.060 GR-1-37 1 56 0.060 KR-1-16 1.82 0.063 KR-1-38 1 72 0.063 GR-1-10 1.75 0.063 GR-1-36 1 72 0.070 GR-1-9 2.14 0.058 GR-1-35 2.09 0.070 GR-1-14 1.70 0.060 GR-1-40 1.67 0.060 KR-1-17 1.87 0.063 KR-1-39 1.88 0.063 GR-1-13 1.80 0.063 GR-1-39 1.81 0.070 GR-1-12 2.21 0.058 GR-1-38 2.22 0.070 GR-1-17 1.84 0.060 GR-1-47 1.50 0.060 KR-1-18 2.10 0.065 KR-1-43 1.65 0.063 GR-1-16 1.91 0.065 GR-1-46 1.81 0.063 GR-1-15 2.17 0.060 GR-1-45 2.15 0.058 KR-1-11 1.42 0.058 KR-1-12 1.63 0.062 GR-1-50 1.61 0.060 GR-1-18 2.00 0.062 KR-1-44 1.78 0.063 GR-1-8 1.68 0.057 GR-1-49 1 70 0.063 GR-1-48 2.06 0.058 GR-1-21 1.62 0.060 KR-1-21 1.83 0.063 GR-1-43 1.88 0.060 GR-1-20 1.81 0.063 KR-1-40 2.12 0.063 GR-1-19 2.13 0.058 GR-1-42 1.92 0.063 GR-1-41 2.17 0.060 GR-1-24 1.65
'O.060 KR-1-33 1 35 0.058 KR-1-22 1.82 0.063 GR-1-23 1.67 0.063 GR-1-22 2.03 0.058'
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STRESS RULE INDEX (SRI) AND CARBON CONTENT RECIRCULATION PIPING SYSTEM (Concinued)
BROWNS FERRY UNIT 1 Carbon Carbon Weld No.
SRI Content GR-1-25 1.21 0.062 GR-1-44 1.48 0.062 GR-1-26 1.20 0.050 KR-1-34 1 95 0.062 GR-1-52 1.17 0.052 GR-1-34 1.65 0.057 GR-1-51 1.09 0,062 KR-1-25 1 31 0.059 KR-1-3 1 36 0.059 KR-1-24 1.20 0.059 KB-1-2 1.24 0.059 GR-1-29 1.19 0.055 GR-1-3 1.23 0.055 GR-1-28 1.02 0.059 GR-1-2 1.04 0.059 GR-1-27 1.01 0.059 GR-1-1 1.03 0.059 GR-1-64 1.22 0.068 GR-1-58 1.24 0.068 KR-1 -52 1.25 0.068 KR-1-48 1.23 0.068 GR-1-63 1.01 0.059 GR-1-57 1.00 0.059 GR-1-62 1.01 0.062 GR-1-56 1.19 0.062 KR-1-51 1.20 0.070 KR-1-47 1.20 0.070 G.<- 1 -61 0.91 0.070 KR-1-46 1 34 0.070 GR-1-60 1.21 0.070 GR-1-55 1.48 0.059 KR-1 -50 1.32 0.062 GR-1-54 1.30 0.062 GR-1-59 1.07 0.059 KR-1-45 1.60 0.062 GR-1-53 1.24 0.059 KR-1-42 0.058 KR-1-41 0.058 KR-1-14 0.058 KR-1-35 0.058 KR-1-13 0.058 KR-1-36 0.058 KR-1-19 0.058 KR-1-20 0.058 KR-1-37 1.12 0.060 KR-1-26 1.60 0.060 KR-1-15 1.12 0.070 KR-1-23 1.58 0.060 KR-1-1 1.60 0.060 KR-1-53 1.50 0.059 KR-1-4 1.63
'0.060 GR-1-63B 1.50 0.050 KR-1-49 1.53 0.059
' SRI Values Not Calculated for Solution Heat Treated Welds
ITEM 3(d)
STRESS EULE INDEX (SRI)
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RESIDUAL HEAT REMOVAL PIPING SYSTEM BROWNS FERRY UNIT 1 Weld No.
SRI W ld No.
SRI e
DRHR-1-18 1.90 DSR HR-1-10 1.79 DRHR-1-17 1 30 DSR HR-1-11 1.79 DRER-1-16 1 51 DRHR-1-22 1 35 DSRHR-1-8B 1.51 TRHR-1-190 1.33 DSRHR-1-8A 1.51 TR HR-1 -191 1 33 DSRHR-1-7 1.76 TRHR-1-192 1.04 DSRHR-1-6 1.04 DRHR-1-9 1.82 DRHR-1-15 1.09 DRHR-1-8 1.31 DSRHR-1-5A 1.47 DRHR-1-7 1.56 DRHR-1-14 1.47 DR HR-1 -4 A 1.56 DRHR-1-13 1.45 DSR HR-1 -4 1.61 DSRHR-1-5 1.45 DSR HR-1-3 1.15 DRHR-1-13B 1.01 DRHR-1-6 1.27 DRHR-1-19 1.74 DRHR-1-5 1.58 DSRHR-1-8 1.84 DSRHR-1-2 1.58 DSRHR-1-9 1.90 DSRHR-1-1 1.48 DRHR-1-20 1.65 DRHR-1-4 1.48 DRHR-1-21 1.79 DRHR-1-3B 0.97 The carbon content for thc residual heat renoval (RHR), core spray,
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j and reactor water cleanup (RWCU) nipinn systees is not a part of our records and cannot be provided. The stress rule index has not been determined for the core spray-systen and cannot be nrovided.
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ITEM 3(d)
STRESS RULE INDEX (SRI)
REACTOR WATER CLEANUP PIPING SYSTEM BROWNS FERRY UNIT 1 Weld No.
SRI DRWC-1-1A 1.12 r
DRWC-1 -1 1.14 TRWC-1-1 1.23 4
TRWC-1-2x1 1.24 TRWC-1-4 1.15 DSRWC-1-1A 1.22 DSRWC-1-2 1.21 DSRWC-1-3 1.20 DSRWC-1-4 1.18 DSRWC-1-5 1 30 DSRWC-1-6 1 32 DSRWC-1-7 1.30 DRWC-1-4 1.24 DRWC-1-4A 1.61 l
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ITEM 3(e)
RECIRCULATION SYSTEM Field welds are denoted by the prefix 'GB' and were made by TVA construction forces. Shop welds are denoted by the prefix 'KR' and were made by M. W. Kellogg Company.
Recirculation Weld Number Pipe Size Weld Number Pipe Size Weld Number Pipe Size GR-1-59 28" GR-1-44 22" GR-1-49 12" KR-1-50 28" GR-1-51 22" GR-1-48 12" GR-1-60 28" GR-1-52 22" GR-1-24 12" GR-1-61 28" GR-1-26 22" KR-1-22 12" KR-1-51 28" GR-1-25 22" GR-1-23 12" GR-1-62 28" GR-1-18 22" GR-1-22 12" GR-1-63 28" KR-1-12 22" GR-1-21 12" KR-1-52 28" KR-1-15 22" KR-1-21 12" GR-1-64 28" KR-1-36 12" GR-1-20 12" GR-1-27 28" KR-1-35 12" GR-1-19 12" GR-1 28" KR-1-41 12" GR-1-17 12" GR-1-29 28" KR-1-42 12" KR-1-18 12" KR-1-24 28" KR-1-20 12" GR-1-16 12" KR-1-25 28" KR-1-19 12"
~GR-1-15 12" GR-1-34 28" KR-1-13 12"
.GR-1-14 12" KR-1-33 28" KR-1-14 12" KR-1-17 12" GR-1-53 28" GR-1-37 12" GR-1-13 12" KR-1-45 28" KR-1-38 12" GR-1-12 12" l
GR-1-54 28"~
GR-1 -36 12" GR-1-11 12" GR-1-55 28" GR-1-35 12" KR-1-16 12" l
KR-1-46 28" GR-1-40 12" GR-1-10 12" KR-1-47 28" KR-1 -39 12" GR-1-9 12"
[
GR-1-56 28"
'GR-1-39 12" GR-1-63B 4"
GR-1-57 28"
- GR-1-38 12" KR-1-53 4"
KR-1-48 28" GR-1-43 12" GR-1-63A 1"
GR-1-58 28" KR-1-40 12" KR-1-23 4"
l GR-1-1 28" GR-1-42 12" GR-1-30 4"
l GR-1-2 28" GR-1-41 12" KR-1-26 4"
GR-1-3 28" GR-1-47 12" GR-1-33 4"
KR-1-2 28" KR-1-43 12" KR-1-49 4"
KR-1-3 28" GR-1-46 12" KR-1-1 4"
GR-1-8 28" GR-1-45 12" GR-1-4 4"
KR-1-11 28" GR-1-50 12" KR-1-4 4"
KR-1-37 22" KR-1-44 12" GR-1-7 4"
l KR-1-34 22" l
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RHR SYSTEM Field welds are denoted by the prefix '?RHR', ' DHS', and ' TR HR ' and were made by TVA construction forces. Shop welds are denoted by the prefix
'DSRHR' and 'DSRS' and were made by DRAVO Corporation with the exception of the penetration assembly welds which were made by Tube Turns.
RHR k' eld Number Pipe Size Weld Number Pipe Size DRHR-1-9 24" DRER-1-22 20" DR HR-1 -8 24" TR HR-1 -190 20" DHHR-1-7 24" DHS-1-1 6"
DSRRR-1-4A 24" DSHS-1-1A 6"
DSRHR-1-4 24" DSHS-1-1 6"
DSRHR-1-3 24" DSHS-1-2 6"
DRHR-1-6 24" DSHS-1-3 6"
DRHR-1-5 24" DSHS-1-4 6"
DSRHR-1-2 24" DSHS-1-5 6"
DSR HR-1 -1 24" DHS-1-2 6"
DRHR-1-4 24" DSHS-1-6 6"
DHHR-1-3 24" DSHS-1-7 6"
DRHR-1-18 24" DSHS-1-8 6"
DRHR-1-17 24" DHS-1-3 6"
DRHR-1-16 24" DSHS-1-9 6"
DSRHR-1-8B 24" DSHS-1-10 6"
l DSRHR-1-8A 24" DSHS-1-11 6"
E DSRHR-1-7 24" DSHS-1-12 6"
DSR HR-1-6 24" DSHS-1-13 6"
DRHB-1-15 24" DSHS-1-14 6"
DRHR-1-14 24" DSHS-1-15 6"
DSRHR-1-SA 24" DSHS-1-16 6"
l DSRHR-1-5 24" DHS-1 -4 6"
DRHR-1-13 24" DHS-1-5 6"
DB HR-1-12 24" DSHS-1-17 6"
DRHR-1-19 24" DSHS-1-18 6"
DSRHR-1-9 24" DSHS-1-19 6"
DSR HB-1-8 6"
F 3-1-6 6"
DB HR-1-20 20" TR HR-1-454G 6"
i DRHR-1-21 20" Plued Head Weld 24" DSRHR-1-10 20" Flued Head Weld 24" DSRHR-1-11 20" l
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I ITEM 3(e)
CORE SPRAY Field welds are ienoted by the prefix 'DCS' and were made by TVA construction forces. Shop welds are denoted by the prefix 'DSCS' and were made by DRAVO Corporation with the exception of the penetration assembly welds which were made by Tube Turns.
Weld Number Pipe Size Weld Number Pipe Size DCS-1-3 12" DSCS-1-7 12" DCS-1-4 12" DSCS-1-8 12" DSCS-1-1 12" DSCS-1-9 12" DSCS-1-2 12" DCS-1-14 12" DCS-1-5 12" DCS-1-15 12" DCS-1-6 12" DSCS-1-10 12" DSCS-1-3 12" DSCS-1-11 12" DSCS-1-4 12" DSCS-1-12 12" DSCS-1-5 12" DCS-1-16 12" DCS-1-7 12" DCS-1-17 12" DCS-1-8 12" DSCS-1-13 10" DSCS-1-6 10" DCS-1-18 10" DCS-1-9 10" Flued Head Weld 12" DCS-1-12 12" Flued Head Weld 12" DCS-1-13 12" b
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ITEM 3(e)
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Field welds are denoted by the prefix 'DRWC' and 'TRWC' and were made by TVA construction forces. Shop welds are denoted.by the prefix 'DSRWC' and were made by DRAVO Corporation with the exception of the penetration assembly which were made by Tube Turns.
RWCU Weld Number Pipe Size Weld Number Pipe Size DRWC-1-1A 6"
DSRWC-1-4 6"
DRWC-1-1 6"
DSRWC-1-5 6"
TRWC-1-1 6"
DSRWC-1-6 6"
TRWC-1-2x1 6"
DSRWC-1-7 6"
TRWC-1-4 6"
DRWC-1-4 6"
DSRWC-1-1A 6"
DRWC-1-4E 6"
DSRWC-1-2 6"
Flued Head Weld 6"
DSRWC-1-3 6"
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ITEM 3(f)
SOLUTION HEAT TREATMENT FOLLOWING WELDING f
0F THE SWEEP 0LETS TO THE RECIRCULATION MANIFOLDS The manifolds and included sweepolets were furnace heated and held at a minimum of 1,9000F for at least one hour.
The manifolds were then transferred from the furnace to a 1000F quench tank within a period of three minutes.
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