ML17059B668
| ML17059B668 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 07/08/1997 |
| From: | Agosta C, Alvi M NIAGARA MOHAWK POWER CORP. |
| To: | |
| Shared Package | |
| ML17059B657 | List: |
| References | |
| S.0SEWS305125, S.0SEWS305125-R, S0.0SEWS305125, S0.0SEWS305125-R00, NUDOCS 9708070152 | |
| Download: ML17059B668 (12) | |
Text
>> U MoHA~K CALCULATIONCOVER SHEET hl % NIAGARA NUCLEAR ENGINEERING ATTACHMENT N Page 1 I Next~Z-Total &
Last ~g NINE MILEPOINT NUCLEARSTATION Unit (1, 2 or 0=Both):
1 Discipline:
STRUCTURAL TNe SCREENING EVALUATIONWORK SHEETS FOR HYDRAULIC CONTROL UNITS 305-1 25 Originator(a)
CARMEN R. AGOSTA Checker(s) IApprover(s)
AoAae~~
Calculation No.
SO.OSEWS305125 (Sub)system(s)
NA Building Floor Elev.
Index No.
RB 237 SO.O Rev Descrl tlon Design Chan eNo.
B Date Chk Date A
Date 00 INITIALISSUE NA 9'?
~ 6 7S'l7 Computer Output/MIcrofilm Filed Separately (Yes / No / NA): NA Superseded Document(s):
NONE Safety Class (SR I NSR / Qxx): SR Document Cross Reference(s) - For additional references see page(s):
NA Ref No NER-1S-012 Document No.
Doc T
NER Index 'heet Rev 00 General Reference(s):
- 2. GENERIC IMPLIMENTATIONPROCEDURE (GIP)
- 3. NMPC Letter to NRC, File Code NMP1L 1044, dated March 11, 1996 Remarks:
NONE Confirmation Required (Yes / No): No See Page(s):
Final Issue Status File Location Operations Acceptance
( APP I FIO IVOI ): APP
( Gale / Hold ): Gale Required ( Yes / No ): No Evaluation Number(s) I Revision:
NR Copy ofApplicabilityReview Attached (Yes I N/R)?N/R Key Words: NMP-1, STRUCTURAL, SQUG, SEWS, SEISMIC VERIFICATION Component ID(s) I EPN(s) I Line Number(s):
NA 9708070i52 9'707$i PDR ADQCK 05000220 P
PDR ojg~g~1 0 'I +
0
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Nine Mile Point Nuclear Station OrIgInator ate -f7 ef.
Unit:
1 Checker/Date CaIcuhtion No.
7-4 -~7 SO.OSEWS305125 Disposition:
00 PURPOSE:
Document the Screening Evaluation Work Sheets (SEWS) for the HYRAULIC CONTROL UNITS, EQUIPMENT NUMBER305-125 This SEWS has been prepared as part ofthe commitment to use the SQUG (GIP) methodology to document the seismic adequacy of SSEL components.
CONCLUSION: The attached calculation to the SEWS concluded the frame and anchorage forthe Hydraulic Control Units are adequate. Therefore, the Hydraulic Control Units are seismically adequate.
ATTACHMENTS A. SEWS for Equipment ID Number 305-125.
FORMAT¹ NEP-DES<8, Rev. 01 (F02)
SCREENING EVALUATIONWORK SHEET (SEWS)
CALC NO REVISION GIP Rev Status: Yes Sheet1 of 2 ID: HCU Rev.
0 Descri tion: H draulic Control Units Buildin: RB Manufacturer, Model, Etc Class: 0. Other Floor El.: 237.00 Room, Row/Col: M5 SEISMIC CAPACITYVS DEMAND Elevation where e ui ment receives seismic in ut Elevation of seismic in ut below about 40'rom rade rade = 243.00 E ui menthasfundamentalfre uenc aboveabout8Hz est. fre uenc
=
Ca acit basedon Demand based on:
237.00 N/A N/A ca c
FIIe Record Demand 1
Demand 2 Does capacity exceed demand?
Yes ANCHORAGE
- 1. The sizes and locations of anchors have been determined
- 2. Appropriate equipment characteristics have been determined (mass, CG, natural freq.,
dam in, center of rotation.
- 3. The t e ofanchora e is covered b the GIP
- 4. The adequacy of the anchorage installation has been evaluated (weld quality and length, nuts and washers, ex ansion anchor ti htness, etc.
- 5. Factors affecting anchorage capacity or margin of safety have been considered:
embedment length, anchor spacing, free-edge distance, concrete strength/condition, and concrete crackin
- 6. For bolted anchora es, an a s under the base are less than 1/4
- 7. Factors affecting essential relays have been considered: gaps under the base, capacity reduction for ex ansion anchors.
- 8. The base has adequate stiffness and the effect of prying action on anchors has been considered.
- 9. Thestren thofthee ui mentbaseandtheload athtotheCGisade uate.
- 10. The ade uac ofembeddedsteel, rout adsorla econcrete adshave been evaluated.
- 11. The anchora eca acit exceedsthedemand.
Are anchorage requirements met?
INTERACTIONEFFECTS Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
- 1. Soft ta ets are free fromim act b nearb e
ui ment orstructures.
- 2. Ifthe equipment contains sensitive relays, it is free from all impact by nearby equipment or structures.
- 3. Attached lines have ade uate flexibilit.
- 4. Overhead e
ui ment or distribution s stems are not likel to colla se.
- 5. No other adverse concerns were found.
Yes Yes Yes Yes Yes Is equipment free of interaction effects?
Yes
SCREENING EVALUATIONWORK SHEET (SEWS)
CaZZO
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~ ~ ~~ zr PAGE NO 2
GIP Rev Status: Yes Sheet2of2 ID: HCU Rev.
0 Descri tion: H draulic Control Units Buildin: RB Manufacturer Model, Etc Class: 0. Other Floor EI.: 237.00 Room, Row/Col: M5 IS E UIPMENTSEISMICALLYADEQUATE?
Yes COMMENTS SRT are W. Djordjevic and C. Agosta - 8/29/95 HCU tube frame and anchorage acceptable per S&Acalculation 93C2771-C-007.
See Ref. Diwg. C-1 5151-C.
Associated scram header and insert &withdrawal lines are well and obviously seismically supported.
No issues with attached lines were identified.
No photos Evaluated by:
Date:
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