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| issue date = 07/14/1976
| issue date = 07/14/1976
| title = Wppss Nuclear Project No. 2. Main Steam Isolation Valve Leakage Control System
| title = Wppss Nuclear Project No. 2. Main Steam Isolation Valve Leakage Control System
| author name = Renberger D L
| author name = Renberger D
| author affiliation = Washington Public Power Supply System
| author affiliation = Washington Public Power Supply System
| addressee name = Vassallo D B
| addressee name = Vassallo D
| addressee affiliation = NRC/NRR
| addressee affiliation = NRC/NRR
| docket = 05000397
| docket = 05000397
Line 16: Line 16:


=Text=
=Text=
{{#Wiki_filter:NRC FORM 195 I2 76)U.S.NUCLL'AR REGULATORY COM N DOCKET NUMBER NRC D'ATTRIBUTION FDRiPART 50 DOCKET MATERIAL FILE NUMOER MR D B VASSALID BETTE R 0%0 G INAL OPY DESCRIPTION ONO ORIZED NCLASSIFIED PROP INPUT FORM ENCLOSURE FROM: WASHINGTON PUBLIC POWER SUPPL SYSTEMS RICHLAND'ASH D L RENBERGER DATE OF DOCUMENT l-l DATE RECEIVED z-ls-14 NUMBER OF COPIES RECEIVED I gi,'TR REF THEIR 10-21-75 LTR AND OUR 12-2-75 LTR~~~~.DISCUSSING MAIN STEAM ISOLATION VALVE LEMON.GE CONTROL SYSTEM@~~~~~~~~~~~Ziti 3.4 PLANT NA>IE:~q~qg+~.L SAFETY ASSXGNED AD: BRANCH CHIEF: PROJECT lfANAGER: LIC~ASSTo: LC I-Pe FOR ACTION/INFORMATION ASS NED A Pll0~C ElFIL 1&~R INTERNAL DISTRIBUTION SYSTEMS SAFETY HEINEMAN SITE 5~A ENVI 0 ANA S I&E OELD GOSSICK&STAFF NXPC CASE HANAUER SCHROEDER ENGINEERXNG iIACCARRY KNXGHT SIHMEIL PAWLICKI BENAROYA IPPOLXTO KXRIQJOOD OPERATIN REACTO S PROJECT NA EMEN BOYD P COLLINS HOUSTON PETERSON lIELTZ HELTEMES SKOVHOLT LPDR: TXC: NST ASLB: ACRS CYS HOLDING.EN REACTOR SAFE'EY ROSS NOVAK ROSZTOCZY CHF.CK AT&I SALTZMAN RUTBERG EXTERNAL DISTRIBUTION NAT LAB: REG, VIE LA PDR CONSULTANTS OPERATXN EISENH SHAD BAER BUTLER GRIEVES BROOKHAVEN ULRIKSON ORNL S A CONTROL NUMBER S~~~~~~~~~~~l Washington Public Power Supply System A JOINT OPERATING AGENCY P.O~BOX S68 3000 GEO.WASHINGTON WAY AIGHI.ANO, WASHINGTON 95352 PHON@(50&)
{{#Wiki_filter:NRC FORM 195                                             U.S. NUCLL'AR REGULATORY COM       N DOCKET NUMBER I2 76)
546 IS II (Docket No.50-397)July 14, 1976 G02-76-294 Director Of Nuclear Reactor Regulation U.S.Nuclear Regulatory Commission Washington, D.C.20555 Attention:
FILE NUMOER NRC D'ATTRIBUTION FDRiPART 50 DOCKET MATERIAL           PUBLIC MR D     B VASSALID FROM: WASHINGTON SYSTEMS RICHLAND'ASH POWER SUPPL l-l DATE OF DOCUMENT D L RENBERGER z- ls-14 DATE RECEIVED BETTE R                  ONO ORIZED                PROP                  INPUT FORM          NUMBER OF COPIES RECEIVED 0%  0  G INAL          NCLASSIFIED OPY                                                                                      I gi,'TR DESCRIPTION                                                        ENCLOSURE REF THEIR   10-21-75 LTR   AND OUR 12-2-75 LTR
Mr.Domenic B.Vassallo Light Water Reactors Project Branch 4  
  ~ ~ ~ ~ .DISCUSSING MAIN     STEAM   ISOLATION VALVE LEMON.GE CONTROL SYSTEM@ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Ziti 3.4 PLANT NA>IE:     ~ q~qg +~
I-Pe
.L               SAFETY                             FOR ACTION/INFORMATION ASSXGNED AD:                                                             ASS  NED A BRANCH CHIEF:
PROJECT lfANAGER:                                                       Pll0 LIC ~ ASSTo:                           LC                               ~ C INTERNAL DISTRIBUTION El  FIL                      SYSTEMS SAFETY                                                 SITE 5~A 1&~R                            HEINEMAN                                                        ENVI 0 ANA   S I&     E                       SCHROEDER                          BENAROYA OELD GOSSICK & STAFF                 ENGINEERXNG                        IPPOLXTO NXPC                             iIACCARRY                          KXRIQJOOD CASE                             KNXGHT HANAUER                         SIHMEIL                           OPERATIN GRIEVES      REACTO S PAWLICKI PROJECT         NA EMEN         REACTOR SAFE'EY                   OPERATXN BOYD                            ROSS                             EISENH P      COLLINS                  NOVAK                             SHAD HOUSTON                          ROSZTOCZY                         BAER PETERSON                        CHF.CK                             BUTLER                      S        A lIELTZ HELTEMES                        AT&I SKOVHOLT                        SALTZMAN RUTBERG EXTERNAL DISTRIBUTION                                             CONTROL NUMBER LPDR:                            NAT LAB:                           BROOKHAVEN TXC:                              REG, VIE                         ULRIKSON ORNL NST                            LA PDR ASLB:                            CONSULTANTS ACRS        CYS  HOLDING  . EN
 
S
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ l
 
Washington Public Power Supply System A JOINT OPERATING AGENCY P. O~ BOX S68   3000 GEO. WASHINGTON WAY AIGHI.ANO, WASHINGTON 95352 PHON@(50&) 546 IS II (Docket No. 50-397)
July 14,     1976 G02-76-294 Director Of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C.           20555 Attention:     Mr. Domenic B. Vassallo
                                                                                                  /.">>
Light Water Reactors Project Branch 4 i++


==Subject:==
==Subject:==
WPPSS NUCLEAR PROJECT NO.2 MAIN STEAM ISOLATION VALVE LEAKAGE CONTROL SYSTEM/.">>i++
WPPSS     NUCLEAR PROJECT NO. 2 MAIN STEAM ISOLATION VALVE LEAKAGE CONTROL SYSTEM


==References:==
==References:==
: 1)    Letter, O.D; Parr to J.J. Stein entitled, "Main Steam Isolation Valve Leakage Contvol System," dated
                        .November 21, 1975.          (GI2-75-162)
: 2)    Letter, N.O. Strand to O.D. Parr entitled, NMain                  Steam Isolation Valve Leakage Control System," dated December 2, 1975.        (G02-75-329)


1)Letter, O.D;Parr to J.J.Stein entitled,"Main Steam Isolation Valve Leakage Contvol System," dated.November 21, 1975.(GI2-75-162) 2)Letter, N.O.Strand to O.D.Parr entitled, NMain Steam Isolation Valve Leakage Control System," dated December 2, 1975.(G02-75-329)
==Dear Mr. Vassallo:==


==Dear Mr.Vassallo:==
With regard to the referenced request .for a commitment to provide an interlock prohibiting depressurization of the main steamline inboard main steamline isolation valve fails to close, we have reviewed if the the feasibility of providing the desired interlock.                       It appears the present switches on the inboard main 'steamline isolation valves can be changed out for switches which can accommodate the desired interlock.
With regard to the referenced request.for a commitment to provide an interlock prohibiting depressurization of the main steamline if the inboard main steamline isolation valve fails to close, we have reviewed the feasibility of providing the desired interlock.
It appears the present switches on the inboard main'steamline isolation valves can be changed out for switches which can accommodate the desired interlock.
Therefore, we are proceeding on the basis the inteI"lock can be provided and are taking steps to modify the existing valves to accept tne interlock.
Therefore, we are proceeding on the basis the inteI"lock can be provided and are taking steps to modify the existing valves to accept tne interlock.
Very truly yours, g@k,A~.D.L.RENBERGER Assistant Director Generation and Technology DLR:GLG:mb cc: JJ Byrnes-B8R-FA MacLean-GE JJ Verderber-BSR D Roe-BPA crSIN P C 1 C~\I'0 1 I}}
Very   truly yours, g@         k,A~.
D. L. RENBERGER Assistant Director Generation and Technology crSIN      P DLR:GLG:mb                                     C cc:   JJ Byrnes     -   B8R-FA MacLean     - GE JJ Verderber       - BSR D Roe -   BPA
 
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Latest revision as of 20:56, 20 October 2019

Wppss Nuclear Project No. 2. Main Steam Isolation Valve Leakage Control System
ML18191A270
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 07/14/1976
From: Renberger D
Washington Public Power Supply System
To: Vassallo D
Office of Nuclear Reactor Regulation
References
G02-76-294
Download: ML18191A270 (4)
v • d • e


Text

NRC FORM 195 U.S. NUCLL'AR REGULATORY COM N DOCKET NUMBER I2 76)

FILE NUMOER NRC D'ATTRIBUTION FDRiPART 50 DOCKET MATERIAL PUBLIC MR D B VASSALID FROM: WASHINGTON SYSTEMS RICHLAND'ASH POWER SUPPL l-l DATE OF DOCUMENT D L RENBERGER z- ls-14 DATE RECEIVED BETTE R ONO ORIZED PROP INPUT FORM NUMBER OF COPIES RECEIVED 0% 0 G INAL NCLASSIFIED OPY I gi,'TR DESCRIPTION ENCLOSURE REF THEIR 10-21-75 LTR AND OUR 12-2-75 LTR

~ ~ ~ ~ .DISCUSSING MAIN STEAM ISOLATION VALVE LEMON.GE CONTROL SYSTEM@ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Ziti 3.4 PLANT NA>IE: ~ q~qg +~

I-Pe

.L SAFETY FOR ACTION/INFORMATION ASSXGNED AD: ASS NED A BRANCH CHIEF:

PROJECT lfANAGER: Pll0 LIC ~ ASSTo: LC ~ C INTERNAL DISTRIBUTION El FIL SYSTEMS SAFETY SITE 5~A 1&~R HEINEMAN ENVI 0 ANA S I& E SCHROEDER BENAROYA OELD GOSSICK & STAFF ENGINEERXNG IPPOLXTO NXPC iIACCARRY KXRIQJOOD CASE KNXGHT HANAUER SIHMEIL OPERATIN GRIEVES REACTO S PAWLICKI PROJECT NA EMEN REACTOR SAFE'EY OPERATXN BOYD ROSS EISENH P COLLINS NOVAK SHAD HOUSTON ROSZTOCZY BAER PETERSON CHF.CK BUTLER S A lIELTZ HELTEMES AT&I SKOVHOLT SALTZMAN RUTBERG EXTERNAL DISTRIBUTION CONTROL NUMBER LPDR: NAT LAB: BROOKHAVEN TXC: REG, VIE ULRIKSON ORNL NST LA PDR ASLB: CONSULTANTS ACRS CYS HOLDING . EN

S

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ l

Washington Public Power Supply System A JOINT OPERATING AGENCY P. O~ BOX S68 3000 GEO. WASHINGTON WAY AIGHI.ANO, WASHINGTON 95352 PHON@(50&) 546 IS II (Docket No. 50-397)

July 14, 1976 G02-76-294 Director Of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555 Attention: Mr. Domenic B. Vassallo

/.">>

Light Water Reactors Project Branch 4 i++

Subject:

WPPSS NUCLEAR PROJECT NO. 2 MAIN STEAM ISOLATION VALVE LEAKAGE CONTROL SYSTEM

References:

1) Letter, O.D; Parr to J.J. Stein entitled, "Main Steam Isolation Valve Leakage Contvol System," dated

.November 21, 1975. (GI2-75-162)

2) Letter, N.O. Strand to O.D. Parr entitled, NMain Steam Isolation Valve Leakage Control System," dated December 2, 1975. (G02-75-329)

Dear Mr. Vassallo:

With regard to the referenced request .for a commitment to provide an interlock prohibiting depressurization of the main steamline inboard main steamline isolation valve fails to close, we have reviewed if the the feasibility of providing the desired interlock. It appears the present switches on the inboard main 'steamline isolation valves can be changed out for switches which can accommodate the desired interlock.

Therefore, we are proceeding on the basis the inteI"lock can be provided and are taking steps to modify the existing valves to accept tne interlock.

Very truly yours, g@ k,A~.

D. L. RENBERGER Assistant Director Generation and Technology crSIN P DLR:GLG:mb C cc: JJ Byrnes - B8R-FA MacLean - GE JJ Verderber - BSR D Roe - BPA

1 C~

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