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 FACIL:STN-50"528 STN-50-529 STN"50'530 AUTH+NAME VAN BRUNT,E~E~RBC IP, NAME NOVAKP'TAHE 8160092 DOC~DATE: 82/08/11 NOTARIZED:

YES Palo Verde Nuclear StationP Uni,t ii Arizona Publi Palo Verde Nuclear Stations Uni,t 2i Arizona Publi'Palo Verde Nuclear StationP Uni,t 3i Arizona Publi AUTHOR AFFILIATION Arizona Public Service Co.RECIPIENT AFFILIATION Assistant Dir actor for Licensing DOCKET 05000528 05000529 05000530

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 be incorporated in future FSAR amend, OI'STRISUTION CODE: 800 IS COPIES RECEIVED:LTR I ENCL TITLE: PSAR/FSAR AMDTS and Related Correspondence NOTES:Standardized plant, Standardized Iplant, Standardized plant~S I ZE o JQ 05000528 05000529 05000530 RECIPIENT ID CODE/NAME A/D LICENSNG LIC BR 03 LA INTERNAL: ELD/HDS3 IE/DEP EPOS 35 NRR/DE/CEB NRR/DE/GB 28 NRR/DE/MEB 18 NRR/DE/QAB 21 NRR/DE/SEB 25 NRR/DHFS/LQB 32 NRR/DHFS/PTRB20 NRR/DSI/ASS 27 NRR/DSI/CSB 09 NRR/DSI/ICSB 16 NRR/DS I/RAB 2?NRR/DST/LGB 33 RGN5 EXTERNAL: ACRS 41 DMB/DSS (AMDTS)LPDR 03 NSIC 05.COPIES LTTR ENCL 1 0 0 1 0 1 1 1 1 2'2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 10 10 1 1 1 1 1 1 REC IP IENT ID CODE/NAME LIC BR 43 BC LICITRAg E~01 IE FILE IE/DEP/EPLB 36 NRR/DE/EQB 13 NRR/DE/HGEB 30 NRR/DE/MTEB 17 NRR/DF/SAB

?0 NRR/DHFS/HFEBQO NRR/DHFS/OLB 34 NRR/DS I/AEB 26 NRR/DS I/CPB 10 NRR/DS I/ETSB 12 NRR/DSI/PSB 19 N/RSB 23 EG F IL 04 MIB BNL(AMDTS ONLY)FEMA REP DIV 39 NRC PDR 02 NTIS COPIES LTTR ENCL 1 0 1 1 1 1 3 3 3 3 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 1'1 1 1 1 1 1 (TOTAL NUMBER OF COPIES REQUIRED: L'TTR 58 ENCL 53 Ih II II IL hr'll, I 4 STA.O WlllIIII III aaalII'/IIIIIII IKIHIPIDHW P.o.BOX 21666-PHOENIX, ARIZONA 85036 August ll, 1982 ANPP-21600

-WFQ/KEJ/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 r C~~a Page 2.cc: A.L.P.E.J~W.G.C.Gehr Bernabei, Esp.Hourihan Licitra Huang H.Wilson Kopchinski (w(a)

?l 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 f 1 v,'I y'o<5 gtniily),,c'e~-'"~A$J I~,s~l,+"IL~'.~*s 1 I 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 J 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),C',2g'.Kjenetration

~m~~y~~-'Number Aa'Valve Arrangement (see figure 6.2'-1)Function Vented and drained~for Type A test 16 Recirc.sump Yes 25A 33 Radiation monitor Yes 25B 33 Radiation monitor Yes Shutdown cooling No 26 10 Containment isola-tion valves tag nos.SIB-UV675 SIB-UV676 SIB-PSV140 HCB-UV044 HCA-UV045 HCB-UV047 HCA-UV046 SID-SIB-SIB-SIB-UV654 UV656 HV690 PSV189 Valve sizes 24 3/4 16 16 10 10 Valve type Location Type C tested Test pressure on CB side CB AB Yes Yes Yes No Yes Yes B'fly B'fly RF Gate CB Yes Yes Gate AB Yes Yes Gate CB Yes Yes Gate Yes Yes'ate CB (c)Yes Gate Yes')Yes (c)Yes')Y (c)No<<)Globe RV Status during-Type A test 0 0 0 0 0(0(i)C n I)

Table 6.2.6-3 CONTAINMENT ISOLATION VA'LVE TESTING (Sheet 5 of l2))Pen'etration Number , Valve Arrangement (see figure 6.2.4-1)Function Shutdown cooling 27 10 SI tank drain 2S 12 29 19 LP nitrogen 30 19 HP nitrogen 31 29 Instrument air ri If 8 J 8 Vented and drained for Type A test rf'ontainment isola-tion valve tag nos.No SIC-UV653 SIA-VV655 SIA-HV691 SIA-PSV179 No SIA-SIE-UV6S2 V463 SIE-PSV474 Yes GAE-V015 GAA-UV002 Yes Yes GAE-GAA-IAE-V011 VV001 V021 IAA-UV002 l8~hJ I I I Valv'e sizes Valve type Location Type C tested Test pressure on CB side CB AB Ye ()Ye B (c)Yes Yes Yes B (c)No'g'6 16 10 10 Gate Gate Globe RV 2 2 3/4 Globe Globe RV B 9 AB B (c)Y (c)(c)Yes Yes No CB Yes Yes Yes Yes 1 1 Check Gate 1 1 2 2 CB AB CB Yes Yes Yes Yes Yes Yes Yes Yes Check Gate Check Gate h Is Status during Type A test NA C NA C C C)s:~H a 3co

Table 6.2.6-3 r"-4 CONTAINMENT ISOLATION VALVE TESTING (Sheet 8 of 12)Penetration Number Valve Arrangement (see figure 6.2.4-1)Function Vented and drained for Type A test 40'17 Letdown line (b)Charging line Yes'b'1 21 Pressurizer sample Yes'"'2B 21 Pressurizer sample (b)Containment isola-tion valve tag nos.Valve sizes Valve type Location Type C tested Test pressure on CB side CHA-CHB-UV516 UV523 2 2 Globe Globe CB AE Ye ()Ye (c)Yes Yes CHE-CHE-V431 vnvo 3 2 CHE-V043 CHE-V393 3/4 CHE-HV524 CHE-V854 Check Yes CB (c)Yes CB Yes(')Yes CB Yes No(h)Yes Yes AB Yes Yes heck Globe Globe Globe Globe SSA-UV204 SSB-UV201 SSA-UV205 SSB-UV202 3/8 3/8 3/8 3/8 CB Yes Yes Yes Yes CB Yes Yes Yes Yes Globe Globe Globe Globe , Status during Type A test C NA NA M co hJ

<'~'~n-,'".~'" Table 6.2.6-3 CONTAINMENT ISOLATION VALVE TESTING (Sheet 9 of 12)Penetration Number'Valve Arrangement (see figure 6.2.4-1)42C 21 43 21 44 45-g 13 46,47,48,49 39 50)6~~Ch D;p~(:,'Q Ql D Q C'V Function Vented and drained for Type A test Containment isola-tion valve tag nos.Valve sizes Valve type Location Type C tested Test pressure.on CB side Hot leg sample Y (b)SSA-UV203 SSB-UV200 3/8 3/8 CB AB Yes Yes Yes Yes Globe Globe RCP bleedoff Y (b)Y (b)CHA-UV506 CHB-UV505 CHA-CHB-UV560 UV561 CHE-V494 CHA-UV580 3~3 1-1/2 1-1/2 Globe Globe Gate.Gate Check Gate CB Yes Yes AB Yes Yes CB AB Yes<<)Yes<<)Yes Yes CB Yes Yes AB Yes Yes Reactor dqain Reactor drain tank tank cl~)n.~Yes (b)No"'one (a)Yes PCE-PCE-V071 V070 4 4 Gate Gate I 8 CB AB Yes Yes Yes Yes SG blowdown Pool cooling D Status during Type A test NA C C C

$5 sh i'I t o 0 I co Penetration Number 58 Table 6.2.6-3 CONTAINMENT ISOLATION VALVE TESTING (Sheet ll of 12)59 60 61 62A 63A,63B 67 62B,62C Valve Arrangement;(see f igure 6.2.4-1)Function Vented and drained for Type A test 27 CB ILRT NA 28 Service air Yes Chilled water No 25 Chilled water 37 CB pressure monitor Yes 39 SGBD sample No<'>36 Long Term recirc YesCB ILRT NA Containment isola-tion valve tag nos.Valve sizes Flange IAE-V073 IAE-V072 WCE-V039 10 WCB-UV063 10 WCB-UV061 10 NCA-UV062 10 HCD-HV077 3/4 None<>SIB-SID-V533 HV331 3 3 Flanges 3/4 0 I Valve type Location Type C tested Test pressure on CB side Stitus during Type A test Flanges CB AB Type B NA NA Yes Yes Yes Yes NA C Check Globe CB AB CB AB Yes Yes Yes Yes NA C Check Gate Yes Yes Yes Yes C C Gate Gate CB , Globe AB No<" NA 0 NA 4i CB AB Type B NA C NA Check Globe Flanges 0~)1 1'(

4~4t>>a+,->>.~+4.Table 6.2.6-3 CONTAINMENT ISOLATION VALVE TESTING (Sheet 12 of 12)-v Penetration Number'72 75,76 77 78 79 Ll;L3 L2 Valve Ariangement (see figure 6.2.4-1)Function Vented and drained for Type A test Containment isola-tion valve tag nos.38 CHE-V835 CHE-HV255 RCP seal injection Y ()15 Aux FW No'None (a)~36 Long term recxrcy (c)(b)SIA-SIC-V523 HV321 22 CB purge Yes CPB-UV005A CPA-UV004A 30 CB purge Yes CPA-UV004B CPB-UV005B 26 Air Locks NA NA 20 Eqpt Hatch NA NA Ch tV I co Valve sxzes Valve type Location Type C tested Test pressure on CB side Status during Type A.test 1-1/2 Check CB Yes I Yes NA 1-1/2 Globe AB Yes No 3 3 Check Globe CB (AB yp<>>>NA'Ye5 NA C B'fly CB Yes No(')C B'fly AB Yes Yes NA NA NA CB.AB NA NA Yes No")Yes Yes Type B Type B NA NA B'fly B'fly NA R Ql 0 H R z R%)op

~~l, 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)tank+line will be Type C tempted using water.This is justified on the basis that<'ki5 Mesc linep would be filled wj.th water in the event of a~IP&l~5 l<W LOCA, the reactor dragon tank being below the post-LOCA water level,/s gHt24 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~following an accident.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.March 1982 6.2.6-23 Amendment 8

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