ML17297B642

Forwards Proposed Amended Section 6.2.6 of FSAR Responding to NRC 820510 Question Re Local Leak Rate Testing of Certain Valves Using Water in Lieu of Air or Nitrogen.Changes Will Be Incorporated in Future FSAR Amend

ML17297B642
Person / Time
Site:	Palo Verde
Issue date:	08/11/1982
From:	Van Brunt E ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR
To:	Novak T Office of Nuclear Reactor Regulation
References
ANPP-21600-WFQ, NUDOCS 8208160092
Download: ML17297B642 (25)

Text

REGULATOR NFORMATION DISTRIBUTION 'EM (RIDS)

AOCESSION NBR: 820 8160092 DOC DATE: 82/08/11 NOTARIZED: YES DOCKET

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FACIL:STN-50"528 Palo Verde Nuclear StationP STN-50-529 Palo Verde Nuclear Stations Uni,t ii Arizona Publi Uni,t 2i Arizona Publi 05000528 05000529 STN"50 '530 'Palo Verde Nuclear StationP Uni,t 3i Arizona Publi 05000530 AUTH+NAME AUTHOR AFFILIATION VAN BRUNT,E ~ E ~ Arizona Public Service Co.

RBC IP, NAME RECIPIENT AFFILIATION NOVAKP'TAHE Assistant Dir actor for Licensing

SUBJECT:

Forwards proposed .amended Section 6 '.6 of FSAR responding to NRC 820510 question re local leak note testing of certain valves using water in lieu of air or niitrogen Changes will

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be incorporated in future FSAR amend, OI'STRISUTION CODE: 800 IS COPIES RECEIVED:LTR I ENCL TITLE: PSAR/FSAR AMDTS and Related Correspondence S I ZE o JQ NOTES:Standardized plant, 05000528 Standardized Iplant, 05000529 Standardized plant ~ 05000530 RECIPIENT .COPIES REC IP IENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL A/D LICENSNG 1 0 LIC BR 43 BC 1 0 LIC BR 03 LA 0 LICITRAgE ~ 01 1 1 INTERNAL: ELD/HDS3 1 0 IE FILE 1 1 IE/DEP EPOS 35 1 1 IE/DEP/EPLB 36 3 3 NRR/DE/CEB 1 1 NRR/DE/EQB 13 3 3 NRR/DE/GB 28 2 '2 NRR/DE/HGEB 30 2 2 NRR/DE/MEB 18 1 NRR/DE/MTEB 17 1 1 NRR/DE/QAB 21 1 1 NRR/DF/SAB ?0 1 1 NRR/DE/SEB 25 1 1 NRR/DHFS/HFEBQO 1 1 NRR/DHFS/LQB 32 1 1 NRR/DHFS/OLB 34 1 1 NRR/DHFS/PTRB20 1 1 NRR/DS I/AEB 26 1 1 NRR/DSI/ASS 27 1 1 NRR/DS I/CPB 10 1 1 NRR/DSI/CSB 09 1 NRR/DS I/ETSB 12 1 1 NRR/DSI/ICSB 16 1 1 NRR/DSI/PSB 19 1 1 NRR/DS I/RAB 2? 1 1 N /RSB 23 1 NRR/DST/LGB 33 1 1 EG F IL 04 1 1 RGN5 2 2 MIB 1 0 EXTERNAL: ACRS 41 10 10 BNL(AMDTS ONLY) 1' DMB/DSS (AMDTS) 1 1 FEMA REP DIV 39 1 1 LPDR 03 1 1 NRC PDR 02 1 1 NSIC 05 1 1 NTIS 1 1 (TOTAL NUMBER OF COPIES REQUIRED: L'TTR 58 ENCL 53

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8208lih0092 8208i 1 PDR ADQCK 05000528 A PDR Hr. T. H. Novak Assistant Director of Licensing Division of Licensing Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Washington, D. C. 20555

Subject:

Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2 and 3 Docket Nos. STN-50-528/529/530 File: 82-056-026 G.1.10

Reference:

(1) Letter from F. J. Niraglia, NRC, to E. E. Van Brunt, Jr., APS dated 5/10/82.

(2), Letter from E. E.. Van Brunt, Jr., APS, to R. L. Tedesco, NRC, dated 2/2/82.

(3) Letter from E.'. Van Brunt, Jr.,'PS, to R. L. Tedesco, NRC, dated 2/26/82.

(4) Letter from E. E. Van Brunt, Jr., APS, to R. L. Tedesco, NRC, dated 5/24/82.

Dear Hr. Novak:

Please find attached proposed amended section 6.2.6 of the FSAR respogding to the question in reference (1) concerning local leak rate testing of certain valves using water in lieu of air or nitrogen. The valves asso-ciated with penetrations 26, 27, 40 and 41 will be Type C tested using air. Penetrations 44, 67 and 77 will be Type C tested using water.

These changes will be incorporated in a future FSAR amendment. If you have any questions concerning these matters, please contact me.

Very truly yours, C.ALII S +>~

E. E. Van Brunt, Jr.

APS Vice President, Nuclear Projects ANPP Project Director EEVB/KEJ/dh Attachment

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Page 2.

cc: A. C. Gehr (w(a)

L. Bernabei, Esp.

P. Hourihan E. Licitra J ~ Huang W. H. Wilson G. Kopchinski

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STATE OF ARIZONA )

ss.

COUNTY OF MARICOPA)

I, A. Carter Rogers, represent that I am Nuclear Engineering Manager of Arizona Public Service Company, that the foregoing document has been signed by me for Edwin E. Van Brunt, Jr., Vice President Nuclear Projects, on behalf of Arizona Public Service Company with full authority so to do, that I have read such document and know its contents, and that to the best of my knowledge and behalf, the statements made therein are true.

A. Carter Rog Sworn to before me thin~0 dey of 1982 Notary Pu lic My Commission expires:

My Commisstan Expires May 19, 1986

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NRC uestion The applicant has responded in their letters dated February 2, 1982 and February 26, 1982, to our concern identified in Section 6.2.6 of the Palo Verde SER (NUREG-0857) regarding the local leak rate test. In the submittals, the applicant continued to propose testing of certain valves using water in lieu of air or nitrogen. Although, water testing of certain valves for leakage is permissible under Appendix J requirements, the applicant is required to perform an analysis to justify that the affected valves will remain water covered following onset of the LOCA. In the applicant's analysis, the following information must be provided:

1) Source of sealing water for each of the affected valves:

2) Minimum water inventory available assuming a single active failure in the associated system; and 1

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3) Proposed technical specification limits for the water test to ensure that the affected valves will remain water covered up to 30 days following onset of a LOCA under a pressure of 1.1 Pa.

RESPONSE

The response is given in amended section 6.2.6.

~ I1 Table 6.2.6-3 CONTAINMENT ISOLATION VALVE TESTING (Sheet 4 of 12)

Kjenetration

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,2g'.~m~~y~~-'Number

'Valve Aa 25A 25B 26 Arrangement 16 33 33 10 (see figure 6.2 '-1)

Function Recirc. sump Radiation Radiation Shutdown monitor monitor cooling Vented and drained Yes Yes Yes No

~ for Type A test Containment isola- SIB- SIB- SIB- HCB- HCA- HCB- HCA- SID- SIB- SIB- SIB-tion valves tag UV675 UV676 PSV140 UV044 UV045 UV047 UV046 UV654 UV656 HV690 PSV189 nos.

Valve sizes 24 3/4 16 16 10 10 Valve type Location B'fly B'fly CB RF AB Gate CB Gate AB Gate CB Gate

'ateCB Gate Globe RV Type C tested Yes Yes Yes Yes Yes Yes Yes (c) Yes ') (c) Y (c)

Test pressure on No Yes Yes Yes Yes Yes Yes Yes Yes Yes') No<<)

CB side Status during- 0 0 0 0 0( 0(i) C Type A test n

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Table 6.2.6-3 CONTAINMENT ISOLATION VA'LVE TESTING

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(Sheet 5 of l2)

Pen'etration Number 27 2S 29 30 31

, Valve Arrangement 10 12 19 19 29 (see figure 6.2.4-1)

Function Shutdown SI tank LP nitrogen HP nitrogen Instrument cooling drain air Vented and drained No No Yes ri If 8

for Type A rf'ontainment test isola- SIC- SIA- SIA- SIA- SIA- SIE- SIE- GAE-Yes GAA- GAE-Yes GAA- IAE- IAA-l8

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tion valve tag UV653 VV655 HV691 PSV179 UV6S2 V463 PSV474 V015 UV002 V011 VV001 V021 UV002 J nos.

8 Valv'e sizes 16 10 10 2 2 3/4 1 1 1 1 2 2 Valve type Gate Gate Globe RV Globe Globe RV Check Gate Check Gate Check Gate hJ I

Location CB AB B B B 9 AB B CB CB AB CB I

I Type C tested Ye ( ) Ye (c) (c) (c) Y (c) (c) Yes Yes Yes Yes Yes Yes h

No'g'6 Is Test pressure on Yes Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes CB side Status during NA C NA C C C )s Type A test

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4 Table 6.2.6-3 CONTAINMENT ISOLATION VALVE TESTING (Sheet 8 of 12)

Penetration Number 40 Valve Arrangement '17 21 21 (see figure 6.2.4-1)

Function Letdown line (b)

Yes'b'1 Charging line Yes'"'2B Pressurizer sample Pressurizer sample (b)

Vented and drained for Type A test Containment isola- CHA- CHB- CHE- CHE- CHE- CHE- CHE- CHE- SSA- SSB- SSA- SSB-tion valve tag UV516 UV523 V431 V043 V393 HV524 V854 UV204 UV201 UV205 UV202 nos. vnvo Valve sizes 2 2 3 2 3/4 3/8 3/8 3/8 3/8 Valve type Globe Globe Check heck Globe Globe Globe Globe Globe Globe Globe Globe Location CB AE CB CB CB AB CB CB Type C tested Ye ( ) Ye (c) (c) Yes(') Yes Yes Yes Yes Yes Yes Yes Test pressure on Yes Yes Yes Yes Yes No(h) Yes Yes Yes Yes Yes Yes CB side

, Status during C NA NA Type A test M

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Table 6.2.6-3

<'~'~n -,'".~ '" CONTAINMENT ISOLATION VALVE TESTING (Sheet of 9 12)

Penetration Number 42C 43 44 45 -g 46,47,48,49 50

'Valve Arrangement 21 21 13 39 )6 (see figure 6.2.4-1)

Function Hot leg RCP bleedoff Reactor dqain Reactor drain tank SG blowdown Pool cooling sample tank cl~)n.~

Vented and drained Y (b) (b) (b) (b)

Y Y Yes Yes for Type A test No"'one Containment isola- SSA- SSB- CHA- CHB- CHA- CHB- CHE- CHA- (a) PCE- PCE-

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tion valve tag UV203 UV200 UV506 UV505 UV560 UV561 V494 UV580 V071 V070 nos.

Valve sizes 3/8 3/8 3 ~ 3 1-1/2 1-1/2 4 4 Ch D;p

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Valve type Globe Globe Globe Globe Gate . Gate Check Gate Gate Gate I8 D

Ql Location CB AB CB AB CB AB CB AB CB AB Q Type C tested Yes Yes Yes Yes Yes <<) Yes <<) Yes Yes Yes Yes C

Test pressure. on Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes CB side

'V Status during NA C C C D Type A test

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t o0 Table 6.2.6-3 CONTAINMENT ISOLATION VALVE TESTING (Sheet ll of 12)

I Penetration co Number 58 59 60 61 62A 63A,63B 67 62B,62C Valve Arrangement; 27 28 25 37 39 36 (see figure 6. 2. 4-1)

Function CB ILRT Service air Chilled Chilled CB pressure SGBD Long Term CB ILRT water water monitor sample recirc Vented and drained NA Yes No Yes No<'> Yes NA for Type A test Containment isola- Flange IAE- IAE- WCE- WCB- WCB- NCA- HCD-HV077 None< >

SIB- SID- Flanges tion valve tag V073 V072 V039 UV063 UV061 UV062 V533 HV331 nos.

Valve sizes 10 10 10 10 3/4 3 3 3/4 Valve type Flanges Check Globe Check Gate Gate Gate , Globe Check Globe Flanges 0

Location CB AB CB AB CB AB CB AB CB AB I

Type C tested Type B Yes Yes Yes Yes Yes Yes No<" Type B Test pressure on CB side NA Yes Yes Yes Yes Yes Yes NA NA 4i Stitus during NA NA C NA C C C 0 NA C NA Type A test

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~ 4t CONTAINMENT ISOLATION VALVE TESTING (Sheet 12 of 12)-

v Penetration Number '72 75,76 77 78 79 Ll;L3 L2 Valve Ariangement 38 15 ~

36 22 30 26 20 (see figure 6.2.4-1)

Function RCP seal Aux FW Long term CB purge CB purge Air Eqpt injection recxrcy Locks Hatch Vented and drained Y ( ) No' (c) (b) Yes Yes NA NA for Type A test Containment isola- CHE- CHE- None (a) SIA- SIC- CPB- CPA- CPA- CPB- NA NA tion valve tag V835 HV255 V523 HV321 UV005A UV004A UV004B UV005B nos.

Valve sxzes 1-1/2 1-1/2 3 3 NA NA Ch tV Valve type Check Globe Check Globe B'fly B'fly B'fly B'fly NA NA Location CB AB CB AB CB AB CB. AB NA NA I (

co Type C tested Yes I

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Yes Yes Yes Yes Type B Type B Test pressure on Yes No NA 'Ye5 No(') Yes No") Yes NA NA CB side Status during NA NA C C Type A .test H

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PVNGS FSAR CONTAINMENT SYSTEMS purpose of performing Type C tests would impair the operability of these engineered safety features.

Inservice testing and inspection of these isolation valves, and also the associated piping system outside the containment, will be performed periodically under the ISI requirements of ASME XI.

During normal operation, the systems are water filled and degradation of valves or piping would be readily detected.

4 In the,CVCS system, the isolation valves in the reactor drain

+fly(gk 4N) will be Type C tank+line /s tempted using water. This is justified on the basis that

<'ki5 Mesc linep would be filled wj.th water in the event of a

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LOCA, the reactor dragon tank being below the post-LOCA water level, gHt24 6 Isolation valves connected to the secondary side of the steam 4

generator, such as main steam isolation valves, main steam g 6~> MAL.Yc~

relief valves, feed water valves ~blowdown lines, and blowdown sample lines are not considered containment isolation valves and are not subjected to Type C tests. If there is leakage from primary to secondary side, the steam generator may be flooded in the event of a LOCA to effectively seal any tube leaks. If required, the filling of the steam generators will be performed by the auxiliary feedwater system, which meets the single failure criteria.

Valves which are Type' tested are tested with the applied test pressure in the same direction as the pressure existing folio ing an accident, except the butterfly and relief valves listed in table 6.2.6-3. Due to the design of these valves, the test leakage will inherently be equal to or greater than the leakage

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following an accident.

March 1982 6.2.6-23 Amendment 8

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