ML13126A191
| ML13126A191 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 03/28/2013 |
| From: | Ali E Exelon Generation Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| RS-12-167, RS-13-067 12Q0108.30-R-002, Rev. 2 | |
| Download: ML13126A191 (44) | |
Text
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 11 Status: F N
U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-14 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. 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.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
Minor corrosion in a number of anchorages judged to be acceptable.
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
Threaded and welded fire piping is well-supported and judged to be acceptable. Threaded unit heater piping is away from equipment and near drainage trough and judged to be acceptable.
- 6.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
Flammable items stored in locked flammable material storage cabinet.
- 7.
Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Tall scaffold is restrained against tipping and sliding. Emergency eye wash station is greater than 24 inches from SW piping valves in non-tip direction. A robust, non-Category 1 support lies in the tip direction. All are judged to be acceptable.
D-66
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 11 Status: r N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-14
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/1/2012 Evaluated by:
James Griffith Date:
9/30/2012 Michael Wodarcyk 9/30/2012 D-67
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 11 Status:
Y-] N U Area Walk-By Checklist (AWC)
D-68
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 11 Status:
Y N
U Area Walk-By Checklist (AWC)
D-69
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 11 Status: F-* N U Area Walk-By Checklist (AWC)
D-70
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 11 Status: F N
U Area Walk-By Checklist (AWC)
D-71
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 11 Status: E[-1 N U Area Walk-By Checklist (AWC)
D-72
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 11 Status: F N
U Area Walk-By Checklist (AWC) 4 D-73
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 9 of 11 Status: F-] N U
Area Walk-By Checklist (AWC)
D-74
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 10 of 11 Status: F N
U Area Walk-By Checklist (AWC)
D-75
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 11 of 11 Status:
T N
U Area Walk-By Checklist (AWC)
D-76 I
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 2 Status: F-] N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-15 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. 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.
- 1.
Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Rod hangers near conduits and piping are flexible and judged to be acceptable.
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
- 6.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
Minor amount of plastic near extinguisher judged to be acceptable.
- 7.
Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Tools in pail and coil of hose on catwalk judged to be acceptable.
D-77
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 2 Status: F-N U
Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-15
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/1/2012 For photographs, see SWC for D03-1501-0021AV20.
Evaluated by:
V4 James Griffith Date:
10/24/2012 Michael Wodarcyk 10/24/2012 Photos D-78
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 5 Status: F N
U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-16 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. 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.
- 1.
Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
Minor bent rod hangers at various small bore pipes judged to be acceptable.
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appear to be inside acceptable limits)?
Junction boxes for 2 lights with lid slightly deformed. Lights have additional support and are judged to be acceptable.
Bent rod hanger (1 of 3) at trolley beam judged to be acceptable.
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
- 6.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
Gas bottles restrained adequately and judged to be acceptable.
- 7.
Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Tools and cleaning supplies judged to be acceptable.
D-79
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 5 Status: jj-N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-16
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/1/2012 Evaluated by:
A James Griffith Date:
10/24/2012 la t
Michael Wodarcyk 10/24/2012 D-80
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 5 Status: F N U Area Walk-By Checklist (AWC)
D-81
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 5 Status: F N U Area Walk-By Checklist (AWC) 20120801-Dresden-3 124 D-82
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 5 Status: F N
U Area Walk-By Checklist (AWC) 20120801-Dresden-3 126 D-83
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 11 Status: EI-N U
Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-17 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. 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.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Overhead light fixtures judged to be acceptable.
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
Welded piping judged to be acceptable.
- 6.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
- 7.
Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Scaffold under cooler adequately restrained.
D-84
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 11 Status:
7 N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-17
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/1/2012 Evaluated by:
James Griffith Date:
9/30/2012 Michael Wodarcyk 9/30/2012 Photos D-85
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 11 Status: r-7 N U Area Walk-By Checklist (AWC)
D-86
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 11 Status: F N
U Area Walk-By Checklist (AWC)
D-87
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 11 Status:
Y N
U Area Walk-By Checklist (AWC)
D-88
Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 11 Status: FYI] N U
Area Walk-By Checklist (AWC)
D-89
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 11 Status: F N
U Area Walk-By Checklist (AWC)
D-90
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 11 Status: F N U Area Walk-By Checklist (AWC)
D-91
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 9 of 11 Status: FYI N U
Area Walk-By Checklist (AWC)
D-92
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 10 of 11 Status: [-* N U Area Walk-By Checklist (AWC)
D-93
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 11 of 11 Status: FYI N U Area Walk-By Checklist (AWC)
D-94
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 9 Status: [-I N U
Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-18 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. 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.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
Minor surface corrosion, minor lack of thread engagement, and minor grout pad cracking all judged to be acceptable.
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
Pipes, conduits, and tubes in close proximity at various locations. Judged to be acceptable due to flexibility in the lines.
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
Room heater and associated threaded pipes are well-supported and are judged to be acceptable. All other pipes are welded.
- 6.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause a fire in the area?
Small quantities of cloth scaffold knuckle buckets and plastic tubing judged to be acceptable.
- 7.
Does it appear that the area is free of potentially adverse seismic interactions Yes associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Scaffold storage rack on ledge above has adequate distance from edge of ledge with material neatly stored. Rack is judged to be acceptable.
D-95
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 9 Status: F N
U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-18
- 8.
Have you looked for and found no other seismic conditions that could Yes adversely affect the safety functions of the equipment in the area?
Bent light fixture above rack 2203-19A judged to be acceptable.
Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/1/2012 Evaluated by:
' 't James Griffith Date:
9/30/2012 Michael Wodarcyk 9/30/2012 D-96
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 9 Status: r N
U Area Walk-By Checklist (AWC)
D-97
Dresden Generating Station Unit 3 12QO108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 9 Status:
Y N
U Area Walk-By Checklist (AWC)
D-98
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 9 Status: F N U Area Walk-By Checklist (AWC)
D-99
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 9 Status: F N U Area Walk-By Checklist (AWC)
D-100
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 7 of 9 Status: F-N U
Area Walk-By Checklist (AWC)
D-101
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 8 of 9 Status: 1"* N U
Area Walk-By Checklist (AWC)
D-102
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 9 of 9 Status: F N U Area Walk-By Checklist (AWC)
D-103
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 1 of 6 Status: FY-] N U
Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-19 Instructions for Completing Checklist This checklist may be used to document the results of the Area Walk-By near one or more SWEL items. 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.
- 1. Does anchorage of equipment in the area appear to be free of potentially Yes adverse seismic conditions (if visible without necessarily opening cabinets)?
- 2.
Does anchorage of equipment in the area appear to be free of significant Yes degraded conditions?
Minor floor coating failures judged to be acceptable.
Minor gaps between base plate and wall due to uneven concrete judged to be acceptable.
- 3.
Based on a visual inspection from the floor, do the cable/conduit raceways and Yes HVAC ducting appear to be free of potentially adverse seismic conditions (e.g.,
condition of supports is adequate and fill conditions of cable trays appears to be inside acceptable limits)?
- 4.
Does it appear that the area is free of potentially adverse seismic spatial Yes interactions with other equipment in the area (e.g., ceiling tiles and lighting)?
S-hooks and/or eyehooks in light fixtures need to be more adequately closed.
Fixtures might swing down from their non-power cord ends but will not affect soft targets, and therefore are judged to be acceptable.
IR 1396017:
LIGHT SUPPORT CONNECTION DEFICIENCY During the Seismic Walkdowns it was identified that there are multiple open S-hook connections between the chain and the support bracket for the lighting fixtures in the U3 HPCI Room. However, each light fixture is hardwired, therefore, they would not fall if the support chains were to hardwired, therefore, they would not fall if the support chains were to come loose. In addition, the equipment within the range that the light fixtures would swing, if they were to come loose, appears to be robust and would not be significantly damaged by engineering judgement.
- 5.
Does it appear that the area is free of potentially adverse seismic interactions Yes that could cause flooding or spray in the area?
Threaded fire piping well supported and judged to be acceptable. Welded piping judged to be acceptable.
Collection pit below grating at turbine near end of room is full of fluid which appears to be water. Fluid in pit does not pose a flood or spray risk.
D-104
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 2 of 6 Status: V N U Area Walk-By Checklist (AWC)
Location (Bldg, Elev, Room/Area):
AWC-U3-1 9
- 6. Does it appear that the area is free of potentially adverse seismic interactions that could cause a fire in the area?
Collection pit below grating at turbine near end of room is full of fluid which appears to be water and therefore is not a fire risk.
- 7.
Does it appear that the area is free of potentially adverse seismic interactions associated with housekeeping practices, storage of portable equipment, and temporary installations (e.g., scaffolding, lead shielding)?
Permanent scaffold and trolley chain fall are properly restrained.
Sump pump equipment is adequately stored away from plant equipment.
- 8.
Have you looked for and found no other seismic conditions that could adversely affect the safety functions of the equipment in the area?
Yes Yes Yes Comments Seismic Walkdown Team: J. Griffith & M. Wodarcyk - 8/11/2012 Evaluated by:
4e'f James Griffith Date:
9/30/2012 Michael Wodarcyk 9/30/2012 D-105
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 3 of 6 Status: [* N U Area Walk-By Checklist (AWC)
D-106
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 4 of 6 Status: [-7 N U
Area Walk-By Checklist (AWC)
D-107
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 5 of 6 Status:
Y N
U Area Walk-By Checklist (AWC)
D-108
Dresden Generating Station Unit 3 12Q0108.30-R-002, Rev. 2 Correspondence No.: RS-12-167 Sheet 6 of 6 Status: -_ I N U Area Walk-By Checklist (AWC)
D-109