ML20063G726

Forwards Seismic Qualification Review Team Info Re Pressurizer Safety Valve Position Indication Sys Per TMI Item II.D.3.Response Fulfills License Condition 2.C(23)c Permitting Unit to Exceed 5% Full Power

ML20063G726
Person / Time
Site:	Summer
Issue date:	08/26/1982
From:	Dixon O SOUTH CAROLINA ELECTRIC & GAS CO.
To:	Harold Denton Office of Nuclear Reactor Regulation
References
TASK-2.D.3, TASK-TM NUDOCS 8209010137
Download: ML20063G726 (8)

Text

['

s SOUTH CAROLINA ELECTRIC & GAS COMPANY eost oerica som ve4 CoLuuseA. Souts CanoLWA 29218 O. W. Dexon.Jn.

uf,'l~'.!'E.

o August 26, 1982 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Subject:

Virgil C. Summer Nuclear Station Docket. No. 50/395 Operating License No. NPF-12 SQRT Information .

License Condition 2.C(23)

TMI Item II.D.3

Dear Mr. Denton:

In compliance with the condition listed in paragraph 2.~C(23)c of Facility Operating License No. NPF-12 issued August 6, 1982, to South Carolina Electric and Gas Company (SCE&G) and South Carolina Public Service Authority, the enclosed seismic qualification documentation information is submitted for NRC staff review and approval. SCE&G has reviewed the information and has found it adequately documents the seismic qualification of the pressurizer safety valve position indication system installed at the Virgil C. Summer Nuclear Station.

SCE&G considers this letter as a final respouse to this licensing condition to exceed five percent (5%) of full power.

If you have any quetions, please let us know.

Ver truly ours, 2 .

O. W Dixon, Jr.

NEC:OWD/fjc cc: See Page #2 8209010137 820826 PDR ADOCK 05000395 P PDR f

Mr. Harold R. Denton August 26, 1982 Page #2 cc: V. C. Summer G. H. Fischer H. N. Cyrus T. C. Nichols, Jr.

O. W. Dixon, Jr.

M. B. Whitaker, Jr.

J. P. O'Reilly H. T. Babb D. A. Nauman C. L. Ligon (NSRC)

W. A. Willians , Jr.

R. B. Clary O. S. Bradham A. R. Koon M. N. Browne G. J. Braddick J. L. Skolds J. B. Knotts, Jr.

B. A. Bursey NPCF File l

t f

t

/ .

Oualification Suen.ary of Eauipment .

V.C. Sumaner Nuclear I. Plant flame: station Type:

Pk2 X

1. Utility: SCE&G

2. 0SSS. vest inchouse 3. A/E: cAI bh2 Component Name Pressurizer Safety Valve Position Indicating Switch II.

1. Scope: ,

[ ] NSSS. , [X] ' BOP.

~

2. , Model Number: 65323 Quantity: 3 .

3.. Vendor: crosby valve and cage company .

4. If the component is a cabinet or panel, name and model No. of the , , ;

devices included: Not Applicable -

5. Physical Description a. Appearance Cylindrical switch housina assembly l mounted atop safety valves

b. Dimensions Cylinder 7'1/2 in dia; 8 3/4 in high

c. Weight 55 lbs

6. Location: Suilding: Reactor' Building El evation: . 480'

7. Fielii Mounting 3 Conditions [X] . Bolt (No. - 8 , Size 11n-)5

[] Weld (Length )

[ -] -

8. Natural Frequencies in Each Direction (Side / Side, Front / Sack, Vertical.

S/S: None F/B: None V: None

9. a' . Functional

Description:

Provide indication of the position of the pressarizer safety valves

b. Is the equipment required for [ ] Hot Standby '[ ] Cold Shutdow i

[xx] Soth

10. Pertinent Reference Design Specifications: ,

SP-702-04461-000 g.

)

r- ,

l l

III. Is Eauiement Available for Inspection in the Plant: fo:] Yes '[ ] Ho l IV. Eouioment Oualification Method ~: Test: X Analysis:

Combination of Test and Analy' sis:

Test and/or Analysis by WLE Qual Plan 45391-1 -l (name of Company or Laboratory & Report No.;

Y. Vibration Inout: .

1. Loads cons,idered:1.[9 Seismic only 2.[ ] Hydrodynamic only 3.[ ] Explosive only 4.[ ] Other (Specify) 5.[ ] Combination of Manufacturer's test

6. Method of combining RRS: [ ] Absolute Sum [ ] SRSS [X3 Plan (Note 1)

2. Required Response Spectra (attach the graphs): Attached MF - en

3. Required Acceleration in Each Direction: _

-f S/S = 4.5g-SF; 2.8g-MF F/B = 4.5g-SF; 2.8g-MF V =~ 4.5R-SF: 2.8e-MF YI. If Oualification by Test. then Comolete:

[X] random 1.. [X] Single. Frequency [ X] Multi-Frequency: [X] sine beat

-[ ]

2. [ ] Single Axis

[ 9 Multi-Axis

3. No. of Qualification Tests: OBE 6 SSE 3 Other

4. Frequency Range: 2.0-35 uz S. TRS enveloping RRS using Multi-Frequency Test [X] Yes (Plot TRS on RR5 graphs:

[-] No

6. Input g-level Test at. S/S = 4.5g-SF F/B = 4.50-sp V = 4.5g-t 10g-MF 10g-MF 8.6g-1 Laboratory Mounting:

7.

Size hin ) [ ] Weld (Length

~

1. [X] Bolt (No. 8

~

. , ) []

l 8. Functional operability verified: [X] Yes [ ] Ho [ ] Not Applicable

9. Test ResTJ1ti in~citiding modifications made: Acceptance criteria were all met with no failures or anomalies of prototype assembly

10. Other tests perfomed (such as fragility test, including results): None Note 1. - The RRS for the test was reviewed and found to envelope the TRS from the Crosby l Testine of the valves on which the switch assemblies are mounteJ.

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SPECIMEN

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