ML20079G507

Rev 4 to ISI-P-014, Inservice Insp Program for Vogtle Unit 2

ML20079G507
Person / Time
Site:	Vogtle
Issue date:	06/10/1991
From:	SOUTHERN NUCLEAR OPERATING CO.
To:
Shared Package
ML20079G495	List: ML20079G492 ML20079G497 ML20079G507
References
ISI-P-014, ISI-P-14, NUDOCS 9110090138
Download: ML20079G507 (21)

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t s Vogtle Electric Generating Plant - Unit 2 (VEGP-2)

Inservice Inspection (ISI) Program First 10-Year Interval (ISI-P-014)

Revision 4 Summary of Changes Affected ISI Program Document Pages Change 6-3 This editorial change is being made to reflect the withdraval of Relief Request i RR-51.

l 6-31, 6-32, and 6-33 -Revised Relief Request RR-21 and i

i Attachment 1 thereto to reflect present examination techniques and receipt of nev {

calibration blocks. l 6-43 and 6-44 Editorial revision of Relief Request <

RR-26. '

6-72 Typographical error is being corrected.

6-95 and 6-96 The portion of Auxiliary Component Cooling Vater System piping covered by Relief Request RR-51 is not in the scope of Regulatory Guide 1.26, Quality Group Classifications for Vater , Steam , and Radioactive Vaste Containing Couponents of Nuclear Power Plants. Therefore, Relief Request RR-51 is being withdrawn.

6-97 Typographical error is being corrected.

Two 6-96 pages existed. This page is being corrected in this program revision to 6-97.

7-1 Revised the section scope statement to indicate the Line Designation List contained in this program document is for information only.

8-1 Revised the section scope statement to indicate the Equipment Designation List contained in this program document is for information only.

001385 1 of 1

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II VEGP-2 ISI-P-014 List of Effective Pages bistribution List, Rev. 4 Table of Contents, Rev. O Introduction Page 1-1, Rev. O i Page 1-2, Rev. O Page 1-3, Rev. O Page 1-4, Rev. O Page 1-5, Rev. O Page 1-6, Rev. O Class 1 Page 2-1, Rev. O Page 2-2, Rev. O Page 2-3, Rev. 0 +

Page 2-4, Rev. O Page 2-5, Rev. O rage 2-6, Pev. O Page 2-7, Rev. O Page 2-8, Rev. O Page 2-9, Rev. O Page 2-10 Rev. O Page 2-11, Rev, O Page 2-12, Rev. O Page 2-13, Rev. O Page 2-14 Rev. O Page 2-15,- Rev. O Page 2-16, Rev. O Page 2-17 Rev. O Page 2-18, Rev. O Page 2-19 Rev. O Page 2-20, Rev. O Page 2-21, Rev. O Page 2-22 Rev. O Page 2-23, Rev. 1 Page 2-24, Rev. O Page 2-25, Rev. O Page 2-26 Rev. O Page 2-27, Rev. O Page 2-28, Rev. O Page 2-29, Rev. O Page 2-3n, Rev. O Page 2-31, Rev. O Page 2-32 Rev. O Page 2-33, Rev. 3 Page 2-34 Rev. 3 Page 2-35, Rev. O Class 2 Page 3-1, Rev. O Page 3-2, Rev. 0 1 of 7 P014 Rev. 4

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Cla=s 2 (continued)

Page 3-3, Rev. 0 Page 3-4, Rev. 2 Page 3-5, Rev. O Page 3-6, Rev. O Page 3-7, Rev. O Page 3-8, Rev. O Page 3-9, Rev. O Page 3-10, Rev. 0

( Page 3-11, Rev. 0 l Page 3-12, Rev. 0 Page 3-13, Rev. O Page 3-14, Rev. O Page 3-15 Rev. O Page 3-16, Rev. 3 Page 3-17, Rev. 3 Page 3-18 Rev. O Class 3 Page 4-1, Rev. O Page 4-2, Rev. 3 Page 4-3, Rev. O Page 4-4, Rev. 3 Page 4-5, Rev. O Page 4-6, Rev. 3 Page 4-7, Rev. O Component Supports Page 5-1, Rev. O Page 5-2, Rev. O Page 5-3, Rev. 3 Page 5-4, Rev. 3 Page 5-5, Rev. O Page 5-6, Rev. O Page 5-7, Rev. O Relief Requests '

Page 6-1, Rev. O Page 6-2, Rev. O Page 6-3, Rev. 4 Page 6-4, Rev. 3 Page 6-5, Rev. O Page 6-6, Rev. O Page 6-7, Rev. O Page 6-8, Rev. O Page 6-9, Rev. O Page 6-10, Rev. O Page 6-11, Rev. O Page 6-12, Rev. O Page 6-13, Rev. O Page 6-14, Rev. O Page 6-15 Rev. O Page 6-16 Rev. O Page 6-17 Rev. O y 2 of 7 P014 Rev. 4 1

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Relief Requests (continued)

~Page 6-18, Rev.__0 Page 6-19,. Rev. 1 Page 6-20, Rev. O Page 6-21, Rev. 0

-Page 6-22, Rev. O Page 6-23, -Rev. 1 Page 6-24, -Rev. O Page 6-25, Rev. O Page 6-26 . Rev. O Page 6-27,- Rev. O Page 6-28, Rev. O Page 6-29, Rev. O Page 6-30, Rev.-0 Page U-31, Rev. 4 Page 6-32,- Rev. 4

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Page 6-51, Rev. 0

-Page 6-52, Rev. O Page 6-53, Rev. O Page 6-54, Rev. O Page 6-55, Rev. O Page-6-56, Rev. O Page 6-57 Rev. O Pagt 6-58 Rev. O Page 6-59, .Re.v. 3 Page 6-59a, Rev. 3 Page 6-60 Rev. 3 Page.6-61, Rev. O Page 6-62, Rev. 0 '

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Relief Request-(continued)

Page 6-69, Rev.-0 Page 6-70, Rev. 0

-Page 6-71, Rev. O Page 6-72, Rev. 4 .

Page 6-73, Rev. O Page 6-74,. Rev. O Page 6-75, Rev. O Page 6-76, Rev. O Page 6-77,-Rev. O Page 6-78,- Rev. 0 Page 6-79, Rev. O Page 6-80, Rev. 0-Page 6-81, Rev. O Page 6-82, Rev. 0 Page.6-83, Rev. O Page 6-84, Rev. 0 Page 6-85, Rev. O Page:6-86, Rev. O Page 6-87, Rev. O Page 6-88, Rev. 3

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-Page 6-91, Rev. 3 Page 6-92, Rev. 3 Page 6-93, Rev..O Page 6-94, Rev. O Page 6-95, Rev. 4

Page 6-96, Rev. 4 Page 6-97, Rev. 4 Page 6-98, Rev. 0 Page 6-99, Rev.- 3 Page 6-100, Rev. 1-Page 6-101,'Rev.-1 Line Designation List Page 7-1, Rev. A Page 7-2, Rev. O Page 7-3, Rev. O Page 7-4, Rev. O Page 7-5, Rev.-0

-Page 7-6,. Rev. O Page 7-7, Rev. O Page 7-8, Rev. O Page 7-9, Rev.-O Page 7-10, .Rev. O Page 7-11, . Re v. 0

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Page 7-13, 'Rev.-0

.Page 7-14, Rev. O. .

Page 7-15, Rev. O Page 7-16,- Rev. 0 001358 4 of 7 P014 Rev. 4

. i Line Designation List (continued)

Page 7-17, Rev. O Page 7-18, Rev. O Page 7-19, Rev. O Page 7-20, Rev. O Page 7-21 Rev. O Page 7-22, Rev. O Page 7-23, Rev. O Page 7-24, Rev. O Page 7-25, Rev. O Page 7-26, Rev. O Page 7-27, Rev. O Page 7-28, Rev. O Page 7-29, Rev. O Page 7-30, Rev. O Page 7-31, Rev. O Page 7-32, Rev. 0 Eage 7-33 Rev. O Page 7-34, Rev. O Page 7-35, Rev. O Page 7-36, Rev. O Page 7-37, Rev. O Page 7-38, Rev. O Page 7-39, Rev. O Page 7-40, Rev. O Page 7-41, Rev. O Page 7-42, Rev. O Page 7-43, Rev. O Page 7-44, Rev. O Page 7-45, Rev. O Page 7-46 Rev. O Page 7-47, Rev. O Page 7-48, Rev. O Page 7-49, Rev. O Page 7-50, Rev. O Page 7-51, Rev. O Page 7-52, Rev. O Page 7-53, Rev. O Page 7-54, Rev. O Page 7-55, Rev. O Page 7-56, Rev. O Page 7-57, Rev. O Page 7-58, Rev. O Page 7-59, Rev. O Page 7-60, Rev. O Page 7-61, Rev. O Page 7-62, Rev. O Page 7-63, Rev. O Page 7-64, Rev. O Page 7-65, Rev. 0 5 of 7 P014 Rev. 4 l

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Line Designation List (continued)

Page 7-66, Rev. O Page 7-67, Rev. O Page 7-68. Rev.-0 Page 7-69, Rev. O Page 7-70, Rev. O Page 7-71, Rev. O {

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f Line Designation List (continued)

Page 7-118, Rev. O Page 7-119 Rev. O Page 7-120, Rev. O Page 7-121, Rev. O Page 7-122 Rev. O Page 7-123, key. O Page 7-124, Rev. O Page 7-125, Rev. O Page 7-126, Rev. O Page 7-127, Rev. O Pagt 7-128, Rev. O Page 7-129, Rev. O Page 7-130, Rev. O Page 7-131. Rev. O Page 7-132, Rev. O Page 7-133, Rev. O Page 7-134, Rev. O Page 7 135, Rev. O Page 7-136, Rev. O Page 7 137, Rev. O Page 7-138, Rev. O Page 7-139, Rev. O Page 7-140, Rev. O Equipment Designation Li Page 8-1, Rev. 4 Page 8-2, Rev. O Page 8-3, Rev. O Page 8-4, Rev. O Page 8-5, Rev. O Page 8-6, Pev. O Page 8-7, Rev. O Page 8-8, Rev. O Page 8-9, Rev. O Page 8-10, Rev. O Page 8-11, Rev. O Page S-12, Rev. O Page 8-13, Rev. O Page 8-14, Rev. O Page 8-15, Rev. O Page 8-16, Rev. O Page 8-17, Rev. O Page 8-18, Rev. O Page 8-19, Rev. O Page B-20 Rev. O Page B-21, Rev. O Page 8-22, Rev. O Page 8-23, Rev. O Page 8-24 Rev. O Page 8-25, Rev. O Page 8-26, Rev. 0 001358/eu 7 of 7 P014 Rev. 4

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(! 4 RR-36  ; Volumetric exam of class 2 thin-vall piping RR-37

- -Volumetric exam of small-diameter Class 2 piping RR-38 ASME Section XII Subsection IVE F

!- RR-39.

Mechanized volumetric examination of pressure-retaining shell and head velds in reactor vessel outside the beltline region RR-40 Notch length in Basic Ultrasonic ,

Calibration Blocks for examination of '

vessel velds i

RR-41 Use of a centrifugally-cast stainless steel (SA-351 CF8A) piping calibration block for the mechanized examination of the reactor vessel nozzle to safe-end velds RR-42 Volumetric c< amination of nozzle. inner radius section for steam generator inlet and outlet nozzles RR-43 VT-4 visual examination of snubbers RR-44 Class 2 piping hydrostatically tested to Class I requirements RR-45. Relief Request vithdrawn RR System pressure test on Class 2 components

.RR-47 Relief Request withdrawn RR-48 Relief Request vithdrawn RR-49 System pressure test on-Class 3 vertical pit type-pumps RR-50 System pressure test on class 3 components f

RR-51 Relief-Request withdrawn 001385 6-3 014 Rev. 4

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VEGP-2 RR-21 Component or Relief Area Volumetric examination of prersure retaining branch pipe connection velds for nominal pipe size 4-inches and greater in Class 1 systems. Affected velds are listed in Attachment 1.

Requirement from which Relief is Requested Item No. B9.31, Category B-J, Table IVB-2500-1 of ASME Sectiou XI requires a surface and volumetric examination to be performed on branch pipe connection velds. Tbr aination areas are shown in Figures IVB-2500-9, -10 and -11.

Basis for Rt

• Examination of branch connection welds is typically difficult due to the configuration of the branch connection fitting and the veld design. For branch connection velds in the VEGP main loop piping, these problems exist in addition to the problems of examining cast stainless steel pipe material. l Two basic weld configurations are used for the branch connectina Ts on the main loop piping. The 4-inch branch connections were in< ing a

" set-on" veld design, while the 6 , 10 , 12 , and 16-inch branen s .ections were installed using a " set design. (See Attachment 2 for configuration.)

lypically, examination e.

.: age of branch connection velds can be obtained by scanning from the main run of pipe using a 45 degree shear wave technique.

In this case, due to the cast stainless steel material used in the main loop piping, the examination is limited to a 1/2 node examination using a 45 degree refracted longitudinal (RL) < ave technique developed for this piping material.

Examination of the 4-inch branch connection velds from the main run of piping using the 1/2 node RL vave is not possible due to the geometry of the " set-on" configuration. However, partial coverage of the 6 , 10 , 12 , and 16-inch branch connection velds from the main run using the 1/2 node RL technique is possible because of the " set-in" configuration. Approximately 40 percent of the Code-required volume (one beam direction only) for the 6 , i 12 , and 16-inch branch connection velds can be examined using this technique. Approximately 100 percent of the Code-requited volume can be examined on the 10-inch branch connection velds from the pipe side by scanning across the veld (one beam direction only) using the 1/2 node RL ter4nique.

6-31 014 Rev. 4 I

i-VEGP-2 RR-21 (Cont'd) l

- To increase' examination coverage and provide a two-directional examination. l scanning from the branch connection side vill also be used where possible.

The forged stainless steel material used in all but the 10-inch branch  !

connections allovs the use of shear vave ultrasonic techniques, however the geometry of the fittings still presents problems in obtaining Code-required I examination covereje. l l Alternate Examiraation Based on plots and calculations, it was determined that the only feasible examination from the branch connectionfside vould be a refracted shear vave l technique from.the taper of the fitting. This technique relies on the ability i of the_ shear wave to reflect off of the inner vall of the fitting bore.

Calibration blocks were built with a 10% notch for sensitivity and 3/16 inch 4

- side drilled holes for establishing a DAC curve. Use of this technique should result in approximately 85 percent of the Code-required volume being -

l examined on the 4-inch branch connections and-approximately 50 percent of the Code-required volume in one direction for the:6 , 12 , and 16 inch branch connections.

The fitting. side of the 10-inch branch connection is ecst stainless steel which precludes the use-of a shear vave technique. Also, due to the geometry of the-part, examination from the branch connection side using the 1/2 node RLitechnique is.not feasible.-

.I Attachment I lists each veld for which relief is requested and delineates the expectedLcoverage using the techniques discussed above in conjunction with the applicable calibration block. The Code-required surface examination vill be performed.

6-32 014 Rev. 4

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VECP-2, RR-21 ATTACHMENT 1 Code l Calibration '

Identification No. Category Description Block' ISI Limitations 21201-001-2 B-J ~12" Branch Connection 353A 40% Exam from pipe side 50% Exas from branch side (Note 1) 21201-002-2 B-J 6" Branch Connection 350A 40% Exam from pipe ~ side 50% Exas from branch side (Note 1) 21201-003-2 B-J 6"' Branch Connection 350A '40% Exam from pipe side 50% Exam from branch side (Note 1) 21201-004-2 B-J 16"' Branch Connection 352A 40% Exam from pipe side 50% Exam from branch side (Note 1) 21201-004-3 B-J 12" Branch Connection 353A 40% Exam from pipe side 50% Exam from branch side (Note 1)

21201-009-4 B-J 4" Branch Connection 351A l

0% Exam from pipe side, 85% Exam from branch connection taper l

21201-009-6 'B-J 10" Branch Connection 331A 100% Exam from pipe side 0% Exas from branch side 2120t-010-4 B-J 10" Branch Connection 331A 100% Exam from pipe side l

0% Exas from branch side

! 21201-011-5 B-J '10" Branch connection 331A l

100% Exam from pipe side I

0% Exam from branch side 21201-012-4 B-J 4" Branch Connection 351A 0% Exam from pipe side, B5% Exam from branch connection taper 21201-012-6 'B-J 10" Branch Connection '331A 100% Exam from pipe side i O! Exam from branch side Note 1: Examination'undirectional.

6-33 014 Rev. 4 I

e a VEGP-2 RR-26 Component or Relief Area Volumetric examination of pressure-retaining circumferential velds in 10-inch diameter Safety Injection piping made of SA-376 and SA-312 grade material.

Affected velds and any limitations are listed in Attachment 1.

Requirements from which Relief is Requested

. Item No. B9.11, category B-J, Table IVB-2500-1 and Item No. C5.21, Category

'C-F, Table IVC-2500-1 of ASME Section XI require a surface and volumetric examination of circumferential piping velds. The required examination volume is shown in Figure IVB-2500-8(b) and IVC-2500-7(b). Article III-4420 requires that the examinations shall be performed using a sufficiently long l examination beam path to provide coverage of the required examination volume j in two beam-path directions.- The examination shall be performed from two i sides of the veld, where practicable, or from one side of the veld as a l minimum. Article III-4430 requires that the angle beam examination for

-reflectors transverse to the veld shall be performed on the veld crown on a single scan path to examine the veld root by one-half v-path in two directions along the veld. Article III-2430 requires that manual scanning shall be done at twice (+6dB) the primary reference at a minimum. A a,eaningful ultrasonic examination could not be accomplished on the SA-376 and SA-312 material using conventional r. hear-vave techniques. Since a 1/2 node

- examination using a refracted 45 degree longitudinal vave was found to be the superior technique, relief is requested from the above requirements.

Basis for Relief Physical limitations exist due to the geometric configuration of some joints.

Additionally, the SA-376 and SA-312 material exhibits severe angular l variations and significant attenuation problems during a typical shear-vave ultrasonic examination. This was determined-to be caused by a severly banded microstructure. However, a refracted-longitudinal wave, which is a 1/2-node examination technique, was found to be the best technique during PSI.

During calibration for the refracted L-vave examination, the primary reference level vill be set using side-drilled holes. Scanning was possible only at the primary reference level due to the excessive noise associated with the metallurgical structure of the material. On pipe to valve configurations, the veld was examined on the pipe side using the half-node technique. Scanning from the valve side was not possible due to valve geometry. On pipe to tee configurations, the veld was examined on the pipe side-using the half-node technique. Only partial scanning from the tee was possible due to geometry.

I Alternate Examination l The Code-required surface examination vill be performed. A refracted longitudinal vave examination, as described in the " Basis for RSlief", vill be performed to the extent practical as listed in Attachment 1.

001385 6-43 014 Rev. 4

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l THIS PAGE INTENTIONALLY LEFT DLME 6 44 014 Rev. 4

.: I VECP-2, RR-36_

Attachment 1  ;.- ,

. Percentage Identification Examined i No. Description During-PSI- Restriction 21206-001-29 t 12" Pipe to Elbow 96%- 100% Exam from pipe side' 92% Exam from Elbow side #

Restricted Access due to Bran-h Connection 21206-001-37 10" Reducer to Flange' ~

50%

t 100% Exam from reducer side i 0% Exam from Flange side

! 21206-004-4 10" Valve to Reducer 50%

100% Exam from reducer side. >I 0% Exam from Valve side 21206-004-11 12" Flange to Reducer 50%

100% Exas from reducer side

-0% Exar. from Flange side l 21206-004-12 10" Reducer to Flange 50% 100% Exam from reducer side >

0% Exam from Flange side 21206-005-1 8" Flange to Pipe 50% 100% Exas from pipe side 0% Exas from Flange side 21206-006-1 8" Flange to Pipe fo% 100% Exam from pipe side i 0% Exas from Flange side I 21208-137-12' 8" Pipe to Valve 50% i 100% Exam from pipe side 0% Exam from Valve side 21208-411-2 8"' Pipe to Valve. 50%- 100% Exam from pipe side 0% Exam from Valve side 21208-411 8"' Pipe to Tee 83% 100% Exam fres pipe side  !

_65% Exam from Tee side -

• d r

001385 72 014 Rev. 4  !

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I Y10hl ILR:ll REllEF REQUEST WITHDRAWN 6-95 014 Rev. 4

I VEGP-2 E8:.11 Attachment 1 REllEF REQUEST WITHDRAWN 6-96 014 Rev. 4

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1 VEGP-2 RR-52 Component or Relief Area Surface examination of Integrally Welded Attachments on the Reactor Vessel closure Head.

Examination ID No. - 21201-V6-001-V204 21201-V6-001-V205 21201-V6-001-V206 Requirement from which Relief is Requested item No. BB.10, Category B-H Table IVB-2500-1 of ASME Section XI requires a surface examination of integrally velded attachments on the reactor vessel.

Applicable examination area is shovn in Figure IVB-2500-15.

Basis for Relief Geometric configurstlen and location of the CRD support braces presents physical limitations that prevent complete coverage of the RPV Closure Head lifting lugs required for the surface examination.

For the reasons described above, GPC has determined that implementation of the Code requirements is impractical. Accordingly, relief from the Code requirements is sought from the NRC as allowed by 10 CFR 50.55a (g)(5)(iii).

Alternate Examination Due to physical limitations discussed above, approximately 50% o( the veld length of the RPV Closure Head lifting lugs vill be examined as during the Preservice Inspection.

6-97 014 Rev. 4 l

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7.0 LINE DESIGNATION LIST 7.1 Scope The lines listed in the Line Designation List are within the scope of the ASME Code,Section XI. The examination method for each individual line also is designated. (Note: The Line Designation List contained in this document is for information only.)

7.2 Systems The Line Designation List includes the following systems:

System System No.

Reactor Coolant 1201 ,

Nuclear Service Cooling Vater 1702 ,

Component Cooling Vater  !

1203  ;

Safety Injection i .?4 Residual Heat Removal 1205 I Containment Spray l 1206 '

Chemical and Volume control 1208 l

Nuclear Sampling-Liquid 1212 Spent Fuel Cooling and Purification 1213 Containment and Auxiliary Building 1214 Drains - Radioactive Auxiliary Building and Misc. Drains 1215 Auxiliary Component Cooling Vater 1217 Miscellaneous Leak Detection 1222 Reactor Make-Up Vater Storage Tank 1228 Main Steam 1301 Auxiliary Feedvater 1302 Condensate and Feedvater 1305 Condensate Chemical Injection 1411 Plant Demineralized Vater 1418 001497 7-1 014 Rev. 4

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• 8.0 EQUIPMENT DESIGNATION LIST 8.1 Scope The equipment listed in the Equipment Designation List are within the scope of ASME,Section XI. The examination method for each piece of equipment also is designated. (Note: The Equipment Designation List contained in this document is for information only.)

8.2 System The Equipment Designation List includes the following systems:

System System No.

Reactor Coolant 1201 Nuclear Service Cooling Vater 1202 Component Cooling Vater 1203 Safety Injection 1204 Residual Heat Removal 1205 Containment Spray 1206 Chemical and Volume Control 1200 Spent Fuel Cooling and Purification 1213 Auxiliary Component Cooling Vater 1217 Auxiliary Feedvater 1302 Containment fleat Removal 1501 Containment CRDM Cavity and Reactor Support 1511 Cooling Containment !! eat Removal 1515 Control Building, control Room Heating, 1531 Ventilation, and Air-Conditioning Control Building Safety Feature Electric 1532 Equipment Room HVAC Containment Building Cable Spreading 1539 Room HVAC Engineered Safety Features Room cooler 1555 001499 B-1 014 Rev. 4

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