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~ ~ N "'"]B I I N 1~ - | ~ ~ N "'"]B I I N 1~ - | ||
.m N I N- -,-~ ...,2 JB-- N ~ N I | .m N I N- -,-~ ...,2 JB-- N ~ N I | ||
~ N ... N a~gra B 1 35 | ~ N ... N a~gra B 1 35 N -~ Bl ~ _ ~ a:_-- __ _ | ||
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Latest revision as of 04:00, 23 February 2020
| ML18152A190 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 12/31/1995 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML18152A191 | List: |
| References | |
| NUDOCS 9603110256 | |
| Download: ML18152A190 (28) | |
Text
{{#Wiki_filter:'. I I ATTACHMENT 1 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 1 1995 ANNUAL STEAM GENERATOR INSERVICE INSPECTION REPORT 9603110256 960301~- PDR ADOCK 05000280 G PDR
- ATTACHMENT 1 SURRY UNIT 1, SEPTEMBER 1995 RFO S/G "C", EDDY CURRENT EXAMINATION
SUMMARY
In St~am Generator "C", all available tubes were inspected full length with bobbin probes. A 301 tube sample was tested with Rotating Pancake Coil (RPC) probes in the hot leg t~ansition (TSH
+/- 3") region. Supplemental examinations were also perf armed using RPC probes where additional confirmatory or other data was desired. Tube R38-C74 was plugged as a precautionary measure.
This Steam Generator contains a total of five plugged tubes. All NQI and NQN calls were resolved by RPC examination or history review. Bobbin signals greater than 20% throughwall may also have been subjected to further resolution by either of these methods. See the attached list for details. 1
J
- ATTACHMENT 1 SURRY 1, 1995 REFUELING OUTAGE STEAM GENERATOR 11 C11 ROW COL LOCN IND REMARKS 31 13 AV4 10 32 15 5C 17 13 16 6H 11 35 17 6H 18 22 18 4H 18 33 18 3C 19 10 23 4H 16 31 23 4H 19 9 24 3C 12 39 25 lC 13 40 26 6C 13 31 27 5H 12 35 28 4C 11 21 33 1C 11 42 33 6C 11 36 35 4C 12 14 38 6H 11 31 38 4C 16 16 41 2H 12 45 44 1C 17 46 44 AV4 10 13 45 2C 10 2
- ATTACHMENT 1 SORRY 1, 1995 REFUELING OUTAGE STEAM GENERATOR "C" ROW COL LOCN IND REMARKS 35 46 AV3 13 6 47 2C 19 34 47 SH 12 19 52 TSC 19 35 52 SH 16 35 52 1C 13 19 54 4C 13 10 56 2C 17 45 56 2C 15 11 57 TSC 18 13 58 4C 17 4 60 JC 17 27 60 4H 17 28 60 BPH 37 34 60 AV1 16 34 60 AV2 11 34 60 AV3 14 27 65 BPC 12 39 69 AV3 17 14 72 4C 14 17 72 BPC 14 26 72 6C 11 23 73 BPH 20 3
V *
- ATTACHMENT 1 SURRY 1, 1995 REFUELING OUTAGE STEAM GENERATOR "C" ROW COL LOCN IND REMARKS 38 74 AV2 14 plugged*
38 74 AV3 17 plugged* 38 74 AV4 29 plugged* 1 75 TSC 12 37 75 AV3 12 37 75 4C 16 14 76 2C 19 30 83 TSC 19 25 84 6H 19 25 84 6C 18 17 87 2C 17 1 91 lH 11 13 92 6C 13
- Preventively plugged 4
ATTACHMENT 2 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 1 TUBESHEET MAPS Page 1 of 7
7 281 TESTED 7H THRU TEH SG - C BOBBIN COMPLETED EXTENrS - H/L
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u 6 UDS - DISTORTED SIGNAL SG C - INDICA!ION DISTRIBUTION HOT lEG 8 N 120 MANUFACTURING BUFF MARK 138 NQN - NQI NOT RPC CONFIRMED Surry Unit 1 VPA-C SERIES**s1F 1 19 *. <20r. INDICATION 2 17 20-297. INDICATION 3 10 30-39r. INDICATION 11-09-1995 10:05 HRS. SUPERTUBIN IQ] 4 PLUGGED TUBE All bobbin algnala >20X through wall Including NCll ,s end NQN,s except for tube R28-C60 (hot leg) were res olved by RPC ex11111tnation I 1 1 1 1 *N N ] 1 N - hi story review
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liJ : 5 TUBE PLUGGED SC C - UPDATtD TOTAl PlUGGtD TUBtS Surry Unit 1 VPA-C SERIES* 51F 12-11-1995 10:45 HRS. SUPERTUBIN I I I I I I I I 1111111 I I I I I .45 I I 1 1 I I I I I I I I 11 I I I a,-.... I I I 111 I I I I I I 40 I I I
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ATTACHMENT 3 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 2 1995 ANNUAL STEAM GENERATOR INSERVICE INSPECTION REPORT
- ATTACHMENT 3 SURRY UNIT 2, FEBRUARY 1995 RFO S/G "A", EDDY CURRENT EXAMINATION
SUMMARY
In Steam Generator "A", all available tubes were inspected full length with bobbin probes. A 301 tube sample was tested with Rotating Pancake Coil (RPC) probes in the hot leg transition (TSH + /- 3") region. supplemental examinations were also performed using RPC probes where additional confirmatory or other data was desired. All NQI and NQN calls were resolved by RPC examination or history review. Bobbin signals greater than 20% throughwall may also have been subjected to further resolution by either of these methods. The following tubes were plugged for axially oriented indications: Row Column 4 36 6 39 7 39 7 50 Tube Rl-C59 was plugged as a precautionary measure due to a restriction at the tubesheet on the hot leg. This Steam Generator contains a total of seven plugged tubes. See the attached list for details. 1
- ATTACHMENT 3 SURRY 2, 1995 REFUELING OUTAGE STEAM GENERATOR "A" ROW COL LOCN IND REMARKS 18 5 2C 15 8 6 5H 10 24 9 4H 11 19 14 5C 14 7 19 4H 15 9 19 6H 11 31 20 4C 12 27 26 3C 14 31 26 TSH 10 6 27 3C 14 38 27 AV3 15 2 28 TSC 11 27 29 3C 13 28 29 2H 17 20 30 6H 15 2 33 6H 14 23 34 6H 10 29 34 AV4 17 1 35 2C 13 6 35 2C 17 9 35 TSC 17 13 35 4H 10 13 35 6H 18 2
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'l ATTACHMENT 3 SURRY 2 1 1995 REFUELING OUTAGE STEAM GENERATOR "A" ROW COL LOCN IND REMARKS 19 35 7H 14 4 36 TSC 37 plugged 4 36 TSC SAI plugged 9 36 6H 16 4 37 TSC 14 23 37 7H 18 6 39 TSC MAI plugged 7 39 TSC SAI plugged 21 41 6H 13 19 45 AV4 17 35 47 2C 14 19 49 7C 16 46 49 BPH 18 7 50 TSC MAI plugged 31 50 lH 19 9 51 TSC 16 10 52 5C 16 35 55 2C 12 36 55 AV4 17 43 55 AV2 15 36 56 AV4 16 38 56 6C 14 4 57 2H 12 3
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- ATTACHMENT 3 SURRY 2, 1995 REFUELING OUTAGE STEAM GENERATOR "A" ROW COL LOCN IND REMARKS 7 57 2H 13 7 57 TSC 11 21 57 TSH 16 25 57 AV2 16 36 57 AV4 18 17 58 6C 12 1 59 TSC 28 plugged
- 1 59 TEH RST plugged
- 1 59 TSH RST plugged*
3 59 3H 12 16 61 lC 14 19 62 6H 13 30 62 4H 16 36 62 AV2 12 40 65 AV2 18 8 66 lH 18 11 66 6C 14 8 67 lC 14 24 68 7H 19 32 68 AV3 19 32 69 4H 14 24 70 4C 19 23 72 BPC 14 31 72 3C 17 4
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- ATTACHMENT 3 SURRY 2, 1995 REFUELING OUTAGE STEAM GENERATOR "A" ROW COL LOCN IND REMARKS 38 72 AV4 17 12 73 6C 16 12 73 lC 16 16 74 2C 19 22 77 4H 12 24 77 4C 19 6 78 lC 10 1 79 5H 18 27 80 4H 15 8 82 4C 13 3 83 BPH 13 21 83 lC 19 25 85 6C 10 1 86 2C 14 26 86 AV3 19 4 88 6H 17 12 88 TSH 11 6 89 2C 19
* - Plugged as a precautionary measure 5
'I ATTACHMENT 4 VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT 2 TUBESHEET MAPS Page 1 of 7
(: G!Kj (',,.:v.*. 7 96 TESTED 7C THRU TEC VIR - A COMPlETED BOBBIN EXTENTS* 7 280 TESTED 7H THRU TEC COLD LEG E 1482 TESTED FULL LENGTH (TEH - 'TEC) Surry Unit 2 VIR-A SERIES . 51F [gJ 2 PLUGGED TUBE 02-20-1995 12:20 HRS. SUPERTUBIN
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[jl : 2 PLUGGED TUBE 02-20-1995 12:24 HRS. SUPERTUBIN
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- 2 PLUGGED TUBE HOT LEG Surry Unit 2 VIR-A SERIES *s1F PAITERNED TUBE SELECTION 02-20-1995 12:18 HRS. SUPERTUBIN t£j I I I I I I I I I I I I I I I I I I I I I I I 1--------------------- 45 I I I I I I I 1111 I I I I 1111 I I I I ~DR-n--------40 I I I I I I
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1 : 38 4 UDS INDICATION 1 - 19,c INDICATION HOT LEG 2 3
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30 - 29~ INDICATION 39" INDIC'ATION Surry Unit 2 VIR-A SERIES **s1F L 3 POSSIBLE LOOSE PART INDICATION F 6 INDICATION NOT FOUND 02-21-1995 14:31 HRS. SUPERTUBIN R 25 INDICATION NOT REPORTABLE D 2 PLUGGED TUBE All bobbin signals >20X through
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X 4 SAi/MAi INDICATION VIR - A INDICATION DISTRIBUTION MAP
- Q : 108 NQI INDICATION U : 6 UDS INDICATION COLD LEG 1 34 1 - 19x INDICATION Surry Unit 2 VIR-A SERIES 51F 2 19 20 - 297. INDICATION 3 7 30 - 39X INDICATION F 1 INDICATION NOT FOUND 02-21-1995 14:25 HRS. SUPERTUBIN Cl 2 PLUGGED TUBE All bobbin signals >20X through .
rTI 1una11-.n wall shown in the attached list as well as all NQl,s and NQN,s OQ1 I 1-.~.~.~.,.....1.-,..~~ . . . .,.,....L.,,-1-11-1~---------------45 I I I I were resolved by RPC ex&1Rination. I I I 1-* '1 I --. 11 I I I I I
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DATE OF LAST ACTIVITY; 02/95 [QJ : 7 PLUGGED TUBE VIR -A w 02-20-1995 I I I I II I I I II I I I I I I I I I I I I 45 I I I I I I I I I I I I I I I
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ATTACHMENT 5 VIRGINIA ELECTRIC AND POWER COMPANY GLOSSARY OF TERMS SURRY POWER STATION ANNUAL STEAM GENERATOR INSERVICE INSPECTION REPORT
- ATTACHMENT 5 VIRGINIA ELECTRIC AND POWER COMPANY STEAM GENERATOR EDDY CURRENT TUBE INSPECTION GLOSSARY OF TERMS
- 1. ROW, COL COLUMN tube identifier numbers an X-Y coordinate system.
- 2. IND INDICATION Character codes and numerics that represent the analysis results of the data for that tube, e.g., SIA, 25%, etc.
- 3. LOCN LOCATION The location in the tube of the INDICATION called.
- 4. MAI MULTIPLE AXIALLY ORIENTED INDICATION - Describes multiple axially oriented indication signals from rotating Pancake Coil probe data.
- 5. NQI NON-QUANTIFIABLE INDICATION - A call to identify a bobbin probe signal that is >40% through wall and requires a RPC test to for final disposition.
- 6. NQN NON-QUANTIFIABLE INDICATION THAT DIDNT CHANGE FROM HISTORY - A NQI call that was looked up in past outage data and found to have had no change.
- 7. 55 A number in the indication column shows the% through wall depth of the indication.
- a. RST RESTRICTED - Indicates that the probe listed in the record would not physically pass the location specified.
- 9. SAI Describes a single axially oriented indication signals from Rotating Pancake Coil probe data.
- 10. UDS UNDEFINED SIGNAL - a signal that in the analyst's opinion does not at present represent tube wall loss - the signal is reported for future review purposes
- 11. DSI DISTORTED SUPPORT INDICATION - a possible tube wall loss condition that is unquantifiable with a numeric percent call due to the signal characteristics and is located at a support plate.
- 11. TEH Tube End Hot leg.
- 12. TEC Tube End Cold leg.
- 13. TSH. Top of Tubesheet Hot leg.
1
- ATTACHMENT 5 VIRGINIA ELECTRIC AND POWER COMPANY STEAM GENERATOR EDDY CURRENT TUBE INSPECTION GLOSSARY OF TERMS
- 14. TSC Top of Tubesheet Cold leg.
- 15. BPH, BPC BAFFLE PLATE HOT AND COLD
- 16. #C, #H (#=number) of Support Plate Hot or Cold leg.
e.g., 3H, 6H, 7C.
- 17. AVl, AV2, AV3, AV4 Anti-Vibration Bars 1 through 4.
Note: Where no comment appears in the remarks column the tube is still in service. 2}}