ML12353A227

12Q0108.50-R-001, Rev. 1, Seismic Walkdown Report in Response to the 50.54(f) Information Request Regarding Fukushima Near-Term Task Force Recommendation 2.3: Seismic for the LaSalle County Station, Unit 1, Part 3 of 15

ML12353A227
Person / Time
Site:	LaSalle
Issue date:	11/01/2012
From:	Delaney M Stevenson & Associates
To:	Exelon Generation Co, Office of Nuclear Reactor Regulation
References
RS-12-163 12Q0108.50-R-001, Rev 1
Download: ML12353A227 (18)

Text

12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 4 Status: FY] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP71E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV I 480V MCC 135X-1 Project: LaSalle 1 SWEL Location (Bldg, Elev, Room/Area):

RB, 761.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Full-length fillet welds along front and rear of MCC.2. Is the anchorage free of bent, broken, missing or loose hardware?No Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes 5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-58 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP71E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV I 480V MCC 135X-1 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Overhead lights judged to be acceptable.

Scaffold bumped to MCC pedestal; judged to be acceptable.

Scaffold is also adequately restrained to wall and rigid piping.8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: M. Etre & M. Wodarcyk -9/17/2012 Evaluated by: Mark Etre Date:* 10/17/2012 Michael Wodarcyk 10/17/20 12 C-59 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 4 Status: F-ý N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP71E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV I 480V MCC 135X-1 Photos C-60 12Q0108.50-R-001 Rev. I Correspondence No.: RS-12-163 Sheet 4 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: IAP71E Equipment Class: (1) Motor Control Centers-1 C-61 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP73E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV I 480V MCC 135X-3 Project: LaSalle 1 SWEL Location (Bldg, Elev, Room/Area):

AB, 710.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

Yes 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes 5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage shown on drawings IE-1-3434, Sheet 1, Rev. BG and IE-1-3434, Sheet 2, Rev. L.6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes Yes C-62 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP73E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV I 480V MCC 135X-3 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Small clearance between 72E and 73E cabinets.

Both cabinets are long and stiff in the direction of this small clearance.

Both cabinets are of the same type and manufacturer.

Therefore, sufficient out-of-phase deflection during a seismic event to cause the 2 cabinets to impact one another is judged to not be credible.8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures judged to be acceptable.

Yes Yes 9. Do attached lines have adequate flexibility to avoid damage?Yes 10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?.Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: M. Etre & M. Wodarcyk -9/18/2012 Evaluated by: " Mark Etre Date: 10/25/2012 Michael Wodarcyk 10/25/2012 C-63 12QO108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: EauiDment DescriDtion:

1AP73E (1) Motor Control Centers DIV 1 480V MCC 1 35X-3 Photos 20'C-64 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 4 Status: Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP73E Equipment Class: (1) Motor Control Centers C-65 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 6 Status: i N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP78E Equipment Class: (1) Motor Control Centers EauiDment

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Description:==

DIV II 480V MCC 136X-1 Project: LaSalle 1 SWEL'Location (Bldg, Elev, Room/Area):

RB, 820.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchorage 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

No 2. Is the anchorage free of bent, broken, missing or loose hardware?Yes 3. Is the anchorage free of corrosion that is more than mild surface oxidation?

Yes 4. Is the anchorage free of visible cracks in the concrete near the anchors?Yes Minor shrinkage cracking in floor judged to be acceptable.

5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Not Applicable

6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes C-66 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 6 Status: F1 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP78E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV II 480V MCC 136X-1 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures judged to be acceptable.

9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/10/2012 Evaluated by: James Griffith Date: 10/25/2012 Michael Wodarcyk 10/25/2012 C-67 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 6 Status: r-7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: Equipment

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Description:==

1AP78E (1) Motor Control Centers 1AP78E (17 Motor Control Centers DIV II 480V MCC 136X-1 C-68 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 4 of 6 Status: Y N U Seismic Walkdown Checklist (SWC)Equipment ID No.: IAP78E Equipment Class: (1) Motor Control Centers-1 C-69 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 5 of 6 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP78E Equipment Class: (1) Motor Control Centers-1 2012091 0-Lasalle 011 C-70 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 6 of 6 Status: Fj N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP78E Equipment Class: (1) Motor Control Centers C-71 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 1 of 4 Status: F N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP81E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV II 480V MCC 136X-3 Project: LaSalle 1 SWEL Location (Bldg, Elev, Room/Area):

AB, 731.00 ft, ALL Manufacturer/Model:

Instructions for Completing Checklist This checklist may be used to document the results of the Seismic Walkdown of an item of equipment on the SWEL. The space below each of the following questions may be used to record the results of judgments and findings.

Additional space is provided at the end of this checklist for documenting other comments.Anchoraae 1. Is anchorage configuration verification required (i.e., is the item one of the 50%of SWEL items requiring such verification)?

2. Is the anchorage free of bent, broken, missing or loose hardware?3. Is the anchorage free of corrosion that is more than mild surface oxidation?

4. Is the anchorage free of visible cracks in the concrete near the anchors?5. Is the anchorage configuration consistent with plant documentation? (Note: This question only applies if the item is one of the 50% for which an anchorage configuration verification is required.)

Anchorage shown on drawings 1E-1-3444, Sheet 1, Rev. A and 1E-1-3434, Sheet 2, Rev. L.6. Based on the above anchorage evaluations, is the anchorage free of potentially adverse seismic conditions?

Yes Yes Yes Yes Yes Yes C-72 12Q0108.50-R-001 Rev. 1 Correspondence No.: RS-12-163 Sheet 2 of 4 Status: FY-] N U Seismic Walkdown Checklist (SWC)Equipment ID No.: 1AP81E Equipment Class: (1) Motor Control Centers Equipment

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Description:==

DIV II 480V MCC 136X-3 Interaction Effects 7. Are soft targets free from impact by nearby equipment or structures?

Bolted to adjacent MCC IAP80E at top. Small gap between MCCs judged to be acceptable.

8. Are overhead equipment, distribution systems, ceiling tiles and lighting, and masonry block walls not likely to collapse onto the equipment?

Overhead light fixtures judged to be acceptable.

Adjacent masonry walls are safety-related per A-186, Rev. AR.9. Do attached lines have adequate flexibility to avoid damage?10. Based on the above seismic interaction evaluations, is equipment free of potentially adverse seismic interaction effects?Yes Yes Yes Yes Other Adverse Conditions

11. Have you looked for and found no adverse seismic conditions that could Yes adversely affect the safety functions of the equipment?

Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk -9/13/2012 Evaluated by: r' 40 James Griffith Date: 10/17/2012 Michael Wodarcyk 10/17/2012 C-73

1 Rev. 1 Correspondence No.: RS-12-163 Sheet 3 of 4 Status: [-7 N U Seismic Walkdown Checklist (SWC)Equipment ID No.: Equipment Class: Eauipment

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Description:==

1AP81E (1) Motor Control Centers DIV 11 480V MCC 1 36X-3 Photos C-74 12Q0108.50-R-001 Rev. I Correspondence No.: RS-12-163 Sheet 4 of 4 Status: -IN U Seismic Walkdown Checklist (SWC)Equipment ID No.: IAP81E Equipment Class: (1) Motor Control Centers-3 20'C-75