ML17254A574

Forwards Revised List of safety-related Hydraulic Snubbers, Incorporating Changes Made Since 840720 Update,Due to Continuing Seismic Upgrade program.Up-to-date Listing of Mechanical Snubbers Will Be Submitted After NRC Review

ML17254A574
Person / Time
Site:	Ginna
Issue date:	10/04/1985
From:	Kober R ROCHESTER GAS & ELECTRIC CORP.
To:	Zwolinski J Office of Nuclear Reactor Regulation
References
NUDOCS 8510160267
Download: ML17254A574 (10)

Text

~.

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSION NBR ~ 85'1 01 60 267 DOC ~ DATE t 85/1 0/04 NOTARI ZED NO DOCKET FACIL~:50-244 Rober t Emmet Ginna Nuclear Planti Unit 1i Rochester G-05000244 AUTH'BYNAME'UTHORAFFILIATION KOBERtR ~ 8 ~-

Rochester Gas 8 Electr ic Corp.

RECIP ~ NAME>>

RECIPIENT AFFILlATION ZWOLINSKI J ~ A ~

Operating, Reactors Branch 5

SUBJECT Forwards revised list of safety related: hydraulic snubbersp incorporating changes made since 840720 update~due to continuing seismic upgrade program<Up. to date listing of mechanical snubbers. will be submitted after NRC review, DISTRIBUTION CODE:

A001D COPIES-RECEIVED:LTR ENCL SIZE:

TITLE:

OR Submittal:

General Distribution NOTES:NRR/DL/SEP icy, OL:+09/19/69-05000?44 RECIPIENT ID CODE/NAME NRR ORBS. BC 01 INTERN~~;

ACRS 09 ELD/HDS4 NRR/DL DIR NRR/DL/TSRG NRR/DSI/RAB RGNl COP3 ES L'TTR ENCL "7

7 6

1

.0 1

1 1

)

1 1

1 RECIPIENT ID CODE/NAME ADM/LFMB NRR/DE/MTEB NRR/DL/DRAB NRR/OS I/METB E,

04 COPIES LTTR ENCL-1 0

1 1

1 0.

1 1

1>>

EXTERNAL: 24X LPDR NSIC NOTES'3>>

05' 1

1-1 1

1 EGSG. BRUSKE'g S NRC PDR 02' 1

1 1

TOTAL NUMBER OF COPIES REQUIRED:

LTTR 29 ENCL" 26

C l3 II 1

F l

gl 4

~ lt d

il t

f1

'I s

fj ti i>

Jl t

k I

I I

ly //////////////

/////////////

( k///

//

//4mI'////I//Z ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.K 14649-0001 ROGER W. KOBER VICE PRESIDENT ELECTRIC S STEAM PRODUCTION TEI.EPHONE AREA coDE TIO 546-2700 October 4> 1985 Director of Nuclear Reactor Regulation Attention:

Mr. John A. Zwolinski> Chief Operating Reactors Branch No. 5 U.S. Nuclear Regulatory Commission Washington<

D.C.

20555

Subject:

Proposed Technical Specification Safety Related Snubbers R. E. Ginna Nuclear Power Plant Docket No. 50-244

Dear Mr. Zwolinski:

The NRC has under review two proposed Technical Specifications regarding safety related shock suppressorsT which were submitted on November 24T 1981 and August 1, 1983.

Both were the result of modifications to plant piping systemsi principally our piping seismic upgrade program.

The former submittal proposed that the listing of safety related hydraulic snubbers be included in the Inservice Inspection Program and< in response to an NRC request<

proposed adding mechanical snubbers to the list of snubbers.

The latter further updated the list of hydraulic snubbers in the Technical Specifications.

Our letter dated July 20< 1984 provided an updated list of safety related hydraulic snubbers.

As a result of our continuing seismic upgrade program that list must now be revised.

The attached list incorporates those changes made since our July 20> 1984 letter:

1.

Snubber HI(-25 has been replaced with a mechanical snubber Ml-l7.

Snubber HU-25 has been deleted from the hydraulic snubber list.

2.

Snubber AFW-49 has been renumbered and is now designated AFU-109.

3.

Snubber PW-83 has been renumbered and is now designated EWU~.

4.

Snubber MS-146 (TOP) and MS-146 (BVZ'.EOM) have been replaced with mechanical snubbers MSU-26.

Snubbers MS-146 top and bottom have been deleted from the hydraulic snubber list.

RGSE previously submitted a proposed Technical Specification to incorporate requirements for mechanical snubbers.

An up-to-date listing of mechanical snubbers can be submitted when NRC review is nearing completion.

8510160267'51004 PDR ADQCK 05000244 P

PDR truly yours, Reer W. Kober

C

~

H>>

I all ei I

l=

II

~ 'I' I

>'v Pak g,<

W

Revised September 1985 Table 8.1 Safet Related H draulic Snubbers Snubber Hark No.

Pi in S stem Accessible or Inaccessible (A or I)

SGA-1 SGA-2 SGA-3 SGA-4 SGA-5 SGA-6 SGA-7 SGA-8 SGB-1 SGB-2 SGB-3 SGB-4 SGB-5 SGB-6 SGB-7 SGB-8 FWU-3 FWU-5 FWU-21 "A" Steam Generator "A" Steam Generator "A" Steam Generator "A" Steam Generator "A" Steam Generator "A" Steam Generator "A" Steam Generator "A" Steam Generator "B" Steam Generator "B" Steam Generator "B" Steam Generator "B" Steam Generator "B" Steam Generator "B" Steam Generator "B" Steam Generator "B" Steam Generator "A" Feedwater "A" Feedwater "A" Feedwater AFW-25 AFW-26 SAFW to "A" Feedwater SAFW to "A" Feedwater A

II ah g,

~ q t'

'l Cr,d

4 Revised September 1985 Table 8.1 (Continued)

Safet Related H draulic Snubbers Snubber Mark No.

AFW-27 AFW-28 AFW-29 AFW-31 AFU-109 FWU-44 AFW-3.0 AFW-13 MSU-8 Pi in S stem SAFW to "A" 'Feedwater SAFW to "A" Feedwater I

'-SAFW to "A".Feedwater SAFW to "A" Feedwater "A" Aux. Feedwater "B" Feedwater SAFW to "B" Feedwater SAFW to "B" Feedwater "B" Main Steam Accessible or Inaccessible (A or I)

A H-1 H-2 H-3 H-4 H-5 H-6 H-7 H-8 PRZR Relief PRZR Relief PRZR Relief PRZR Relief PRZR Relief PRZR Relief PRZR Relief PRZR Relief PS-2 PS-4 PS-5 PS-6 PRZR Safety 6 Relief Valve PRZR Safety S Relief Valve PRZR Safety 6 Relief Valve PRZR Safety 6 Relief Valve

i I

"Pwk>>ab ff i

~

i I

a

~~

2 3~ "3 X~

I f '.> "g jW k'

Revised September 1985 Table 8.1 (Continued)

Safet Related H draulic Snubbers Snubber Nark No.

PS-8 PS-9

'S-10 II PS-ll I.

Pi in S stem PRZR Safety 6 Relief Valve "PRZR Safety 6 Relief Valve PRZR Safety 6 Relief Valve PRZR

~ Safety'&~Relief Valve Accessible or Inaccessible (A or I)

(

~

t 4

II l

))I 6 1

V lj V

'LP

'I I

..>2 la.,

'i'cy Pk 'L