ML17151B066
| ML17151B066 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 03/09/2017 |
| From: | Wolf Creek |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML17151A982 | List:
|
| References | |
| WO 17-0045 M-663-00017A, Rev W05 | |
| Download: ML17151B066 (53) | |
Text
M%63-00017A Revision W03 Page GIA-124 of GfA-162 I Structural Steel Fireproofing Data Appendix G1A I Room-Elevatlon:
3504-2032 Bulldlng:
Control Fire Area: I
Description:
Electrical Chase Drawing: Thermal Short #I (TSI) Data C-OS36ll Thermal Short #2 (TS2) Data NIA NIA NIA No Columns Member Type: Beam Member Size: 12 X 27 Comments:
Room Sketch: Thermal Short #I Sketch M-663-00017A, Revision W03 Page G1A-125 of GIA-162 Structural Steel Fireproofing Data Appendix G~A 3504-2032 Thermal Short #I Photo 1 Thermal Short #2 Sketch npmal Short#l Photo 2 Thermal Short #2 Photo j No sketch required.
No photo required Thermal Short #2 Photo 2 No photo required.
M-M3-00017A, Revision W03 Page GlA-126 of GtA-162 Structural Steel Fireproofing Data Appendix GIA Room-Elevation:
C025-2032 Building:
Control Fire Area: C-25
Description:
Drawing: Member Type: Member Sire: Comments:
Cable Chase @ CA-C6,2032-0 to 2047-6 Thermal Short #I (TSI) Data Beam NIR No items Room Sketchm m ~hsrmaj short #2 Data NIA NIA NIA No Columns 1 No sketch required.
I .-.- -. . Thermal Short #I Sketch No sketch required.
M86340017A, Revision W03 Page GIA-127 of GIA-162 . Structural Steel Fireproofing Data Appendix GIA Room-Elevation:
C026-2032 Bullding:
Control Fire Area: C-26 I
Description:
Drawlng : Member Type: Member Size: Comments:
Cable Chase @ CA-C3,2032-0 to 2047-6, Thermal Short #I (TSI ) Data Beam NIR No items Thermal Short #2 (TS2) Data NIA NIA NIA No Columns - . -- f hermal Short #I Sketch M-3-00017A, Revision W03 Room Sketch: - Thermal Short #2 (TS2) Data NIA NlA NIA Structura!
Steel Fireproofing Data Appendix GIA Room-Elevation:
3601 -2047 Building:
Control Fire Area: C-27
Description:
Control Room Thermal Short #y-flhl] -Data Drawlng: NIA Member Type: NIA Member Size: NIA Comments: - 'I . , , - , - :- No sketch. required.
I' ..., !&, . , ,. , . ,'-' 11 )' 8. . . , . Gi .-- . ?. .- . . . - - . -. . . . . Thermal Shorf #T Sketc' M-663-00017A, Revision W03 Structural Steel Fireproofing Data Appendix GIA 1' Room-Elevation
- 3603-2047 Building:
Control Fire Area: C-27 I
Description:
Drawing: Member Type: Member Size: Comments:
Shifl Supervisors office Thermal Short #1 (TSI ) Data NIA NIA NIA Room Sketch: m Thermal Short #2 (TS2) Data NIA NIA NIA '- . I" No sketch required.
- 4. , - a A-. . Thermal S - -A No sketch required.
M-66300017A, Revision W03 Page GIA-130 of G1A-I62 Structural Steel Fireproofing Data Appendix G~A Room-Elevation:
3604-2047 Building:
Control Fire Area: C-27
Description:
Drawing: Member Type: Member Size: Comments:
Foyer Therma t Short #I ITS1 ) Data NIA NIA NIA Room Sketch: Thermal s 1 Thermal Short #2 (tS2) Data NIA NIA NIA M46340017A, Revision W03 Page GlA-131 of G1A-162 Structural Steel Fireproofing Data Appendix GI A Room-Elevation:
3606-2047 Building:
Controt Fire Area: C-27
Description:
Drawing: Member Type: Member Size: Comments:
Emergency Equipment Storage Room Thermal Short #I (TSI) Data NIA NlA MIA Thermal Short & ~~21 Data NIA NIA NIA Room Sketc -m No sketch required.
- *
- M-663-Q0017A, Revision W03 Structura'l Steel Fireproofing Data Room-Elevation:
==
Description:==
Drawing: Member Type: I Member Size: Comments: 3616-2047 Building:
Vestibule Thermal Short #1 (TS1) 1 Data N/A N/A N/A Room Sketch: Page of G1A-162 Appendix G1A Control Fire Area: C-27 Thermal Short #2 (TS2) Data N/A N/A N/A No sketch requir
- Thermal Short #1 Sketch No sketch requir-..-.
M-663-00017k Revision W03 - Page G1A-133 of GIA-162 Structural Steel Fireproofing Data Appendlx GI A Room-Elevation
- 3602-2047 Building:
Control Fire Area: C-28
Description:
Drawing: Member Type: Member Size: Comments:
Pantry Thermal Short #I (TS1) Data NIA NIA NIA Rnnm Skptch- ~hermal short #2 m2) Data NIA NIA NIA M46900017A, Revision W03 Page GIA-134 of GIA-162 Structural Steel Fireproofing Data Appendlx ~d A
Description:
Drawing: Member Type: Member Size: Comments:
Toilet Building:
Thermal Short #I ITS1 ) Data NIA NIA NIA Room Skefphm Control Fire Area: Thermal Short #2 (TS2) Data NIA NIA NIA . . No sketch required. . Y , i,; .?-I: , ,. .- -3 ' . 111 '- 1, . a: ,r I- ' 1- No sketch required.
Page GiA-I35 of GI A-1 62 1 8tructural Steel Fireproofing Data Appendix G~A I Room-Elevatlon:
3608.2047 Bullding:
Control Fire Area: C-28
Description:
Janitors Closet Thermal Short #I PSI) Data Drawing: NIA Member Type: MIA Member Size: NIA Commehts:
Thermal Short #2 (TS2) Data NIA NIA NIA Thermal Sbrt #l Sketch M-663-00017A, Revision W03 Paae GIA-136 of GlA-162 Structural Steel Fireproofing Data Appendix 01~ I Room-Elevatlon:
==
Description:==
Drawlng: Member Type: Member Sire: Comments:
Building:
SAS Room Thermal Short #I PSI) Data NIA NIA NIA Control Fire Area: Thermal Short #2 (fS2) Data NIA NIA NIA Room Sketch ' L ' .. Thermal Short #I Sketch A-. ' No sketch required.
Room Sketch: Thermal Short #2 vS2) Data MIA PIIA MIA PlrJ Columns M-663-00017A, Revision W03 Page GIA-137 ofG1A-162 Structural Steel Fireproofing Data Appendix GIA Room-Elevation
- 361 7-2047 Building:
Control Fire Area: C-30
Description:
Electrical Chase Thermal Short #1 (TSI) Data Drawing: C-1 S3711 Member Type: Beam Member Size: 12 X 27 Comments:
Thermal Short #1 Sketch 4-663-0001 7A, Revision W03 Paae GlA-138 of GIA-162 Structural Steel Fireproofing Data Appendix GI A 361 7-2047 Thermal Short #I Photo I Thermal Short #I Photo 2 Thermal Short #2 Sketch Thermal Short #2 Photo 1 -5ko photo required.
I Thermal Short #Z Photo 2 r ,Na photd required..
M-663-00017A, Revision W03 Page GIA-139 of GIA-I62 Structural Steel Fireproofing Data Appendix GIA Room-Elevation:
==
Description:==
Drawing: Member Type: Member Size: Comments:
Electrical Chase Building:
Thermal Short #I (TSI) Data Beam Control Fire Area: Thermal Short #2 (TS2) Data NlA NlA NIA No Columns Room Sketch: Thermal Short #l Sketch M-66340017A, Revision W03 Paae GIA-740 of GlA-162 I Structural Steel Fireproofing Data Appendix G~A I 3618-2047 Thermal Short #1 Photo 1 Thermal Short #I Pheto 2 Thermal Short #2 Sketch I Thermal Short #2 Photo 1 Thermal Short #2 Photo 2 No photo required.
Po photo required.
M46340017A, Revision W03 Structural Steel Fireproofing Data Appendlx GIA I Room-Elmvation:
==
Description:==
Drawing: Member Type: Member Size: Comments:
Building:
Cable Chase @ CA-C6,2047-6 to 2073-6, Thermal Short #l (TSI) Data C-1 S3711 Beam NIR Double Sided, no thermal shorts I-. Control Fire Area: Therma I Short #2 (TSZ) Data NIA NI A NIA No Columns M-663-00017A, Revision W03 Page GIA-142 of G1A-162 Structural Steel Fireproofing Data Appendix ~t A C-153811 NIA NIA No Thermal Shorts attached to Steel Room-Elevation:
3804-2073 Bulldlng:
Control Fire Area: C-33
Description:
Electrical Chase Thermal Short #I ITS11 Data Drawing: Member Type: Member Size: Comments:
Room SketcCm m Thermal &ho~ #2 (TS2) Data NIA NIA NIA No Columns Na sketch required.
-- Thermal Short #I S'ketct M-663-0001
?A, Revision W03 Page GIA-143 of GIA-I 62 Structural Steel Fireproofing Data Appendix G~A Room-Elevation:
==
Description:==
Drawing: Member Type: Member Size: Comments:
Building:
Cable Chase @ CA-C6 Thermal Short #I (TSI) Data C-153811 MIA NI A No Steel Control Fire Area: Thermal Short #2 (TS2) Data NIA NIA NIA No Columns Room Sketch : Thermal Short #I Sketch M-663-00017A, Revision W03 Page GI A-1 44 of GI A-1 62 . Structural Steel Fireproofing Data Appendix GIA I Room-E levation:
CO36-2000 Building:
Control Fire Area: (2-36
Description:
Cable Chase @ CA-C6,2000-0 to 201 6-0, Thermal Short #1 (TS1) Data Drawing: C-OS3411 Member Type: Beam Member Size: Comments:
Underling Wall supports Beam Room Sketcf ,. Thermal Short #2 (TS2) Data NIA No Columns W3-00017A, Revision W03 Page GfA-145 of GlA-162 Structural Steel Fireproofing Data Appendix GIA Room-Elevation:
==
Description:==
Drawing: Member Type: Member Size: Comments:
Cable Chase @ CA-C3,2000-0 to 2016-0 1 herma[ Short #I (TS1) Data Beam Unistrut Only Room Sketch: Control Fire Area: Thermal Short #2 (TS2) Data NIA NIA NIA No Columns M-663-00017A, Revision W03 Page GIA-146 of GIA-I62 I Structural Steel Fireproofing Data Appendix GI A Room-Elevation:
5203-2000 Building:
Diesel Fire Area: 0-0 1 I
Description:
Emergency Diesel Generator A Room Thermal Short #I (TSI ) Data I Drawing: C1 S52? t COS531 / Member Sire: NIR Comments:
The Diesel Building, rooms 5201 and 5203 were reviewed but thermal short analysis was determind not to be required.
Room Sketch: Thermal Short #2 (TS2) Data NIR The Diesel Building, rooms 5201 and 5203 were reviewed but thermal short analysis was determind not to be required.
Thermal Short #I Sketch , nr. - ,;. ; \.*$ " J I No sketch required.
M-66300017A, Revision W03 Page GIA-143 of GIA-162 I Structural Steel Fireproofing Data Appendix GI A I Raom-Elevation:
5201 -2000 Building:
Diesel Fire Area: 0-02 I
Description:
Emergency Diesel Generator B Room Thermal Short #I ((TSI) Data I Drawing: C1 S52 1 1 COS531 I Lrnber Size: NIR Comments:
The Disel Bullding, rooms 5201 and 5203 were reviewed but thermal short analysis was determined not to be required.
Room Sketch: Thermal ShoH #2 (TS2) Data NIR The Diesel Building, rooms 5201 and 5203 were reviewed but thermal short analysis was determined not to be required.
Theml Short #I Sketch quired. No sketch required.
M-66340017A Revision W03 Page GlA-148 of GIA-162 Structural Steel Fireproofing Data Appendix GIA Room-Elevation
- K105-2000 Building:
ESW Fire Area: ESW-A
Description:
Drawing: Member Type: Member Size: Comments:
ESW Pump House - Room A Thermal Short #1 (TSI) Data NIA MIA NIA No Structural Steel Thermal Short #I2 PS2) Data NIA NIA NIA No Columns Room Sketch: ,.:.-4 I' , . . , I),; , .. Thermal Short #I Sketcl Room SketcCw rn Thermal Short #2 (TS2) Data MIA WA NIA No Columns M-66900017A, Revision W03 Page GqA-149 of G1A-162 Structural Steel fireproofing Data Appendix GI A Room-Elevation:
K104-2000 Building:
ESW FireArea:
ESW-B
Description:
ESW Pump House - Room B Thermal Short #I (TSI) Data Drawlng: NIA Member Type: NIA Member She: NIA Comments:
No Stnrctural Steel M-663-00017A, Revision W03 Page GIA-150 of GIA-162 Thermal Short #2 (TS2) Data NIA NfA N IA No Columns Room ' I i:--h Na sketch req u i red. . . . -1 ?,'I , . : I>: . L I - , . , - 5: Structural Steel Fireproofing Data Appendix GI A Room-Elevation:
6101 -2000 Building:
Fuel Fire Area: F-01
Description:
Stair F-1 Thermal Short #1 (TSi) Data Drawing: NIA Member Type: NIA Member Size: NIA Comments:
No Steel I Thermal Short #I Sketch No sketch required.
M-663-00017A, Revision W03 Page GIA-151 of GIA-162 Structural Steel Fireproofing Data Appendix GIA Room-Elevation:
==
Description:==
Drawing: Member Type: Member Size: Comments:
Stair F-1 Building:
Thermal Short #1 (TSI) Data NIA NIA NIA No Steel Room Ske*rhm Thermal S I Fuel Fire Area: Therrrtal Short #2 (TS2) Data NIA NIA NIA No Columns No sketch . , required.
M-663-00017R Revision W03 Page G1A-152 of GIA-f 62 Thermal Short #I Sketd Thermal Short #2 (TS2) Data NIA NIA NIA No Columns No sketch required. - - - -- -- - . . required.
Structural Steel Fireproofing Data Appendix GI A Room-Elevation:
6101-2047 Building:
Fuel Fire Area: F-01
Description:
Stair F-1 Thermal Short #I IfSI) Data Drawing: NIA Member Type: NIA Member Size: NIA Comments:
No Steel MS63-00017A, Revision W03 Page G1A-I 53 of GlA-162 . Structural Steel Fireproofing Data Appendix G~A I Room-Elevation:
6102-2000 Building:
Fuel Fire Area: F-01 I
Description:
Drawing: Member Type: Member Sue: Comments:
Laydown Area Thermal Short #I ITS1 ) Data NIR No Fireproofing Thermal Short #2 (TS2) Data NIR NIR NIR No Fireproofing Room Sketch: Thermal S- - --'- - I I. . 1 I' No sketch required.
M-663-00017A, Revision W03 Page GIA-I54 of G1A-162 Structural Steel Fireproofing Data Appendix GI A Room-Elevation:
61 03-2000 Building:
Fuel Fire Area: F-01 I
Description:
Cask Loading Pool Thermal Short #I (TSI) Data Drawing: NIA Member Type: N/A I Member Size: NIA Comments:
No Steel, Cast loading Pool Room SK Thermal Short #2 (TS2) Data NIA NIA NIA No Steel, Cast loading Pool Thermal M-66300017A, Revision W03 Page GfA-155 of G1A-162 Structural Steel Fireproofing Data Appendix GIA Room-Elevation
Description:
Drawing: Member Type: Member Sue: Comments:
Spent Fuel Pool & Storage Racks Thermal Short #1 (TSI) Data NIA NIA NIA No Steel, Spent Fuel Pool Fuel Fire Area: Thermal Short #2 (TS2) Data NlA NIA NIA No Steel, Spent Fuel Pool I No sketch required. " 5 - - I a. - No sketch required M463-00017A, Revision W03 Page G1 A-4 56 of G1A-162 I Structural Steel Fireproofing Data Appendix GI A ( Room-Elevation:
==
Description:==
Passage Thermal Short #I (TSI) Data Building:
Fuel Fire Area: Drawing: NIA Member Type: NIR Member Size: MIR Comments:
No Fireproofing Thermal Short #2 (TS2) Data NIA NIA NIA No Columns Thermal Short #I Sketch M-86340017A, Revision W03 Page G1A-157 of GI A-I 62 1 Structural Steel Fireproofing Data Appendix GIA Room-Elevation:
6204-2026 Building:
Fuel Fire Area: F-01 I Descrlptlon:
Cask Washdown Pit Thermal Short #i (TSI) Data ( Member Type: NIR I Member Size: NR Comments:
No Fireproofing Room Sk ' ' Thermal Short #2 (TS2) Data NlA NIA NIA No Columns Page GIA-158 of GlA-162 Room Ske*rhv w Thennal Short #I Sketcr Thermal Short #2 (TS2) Data NIA NIA NIA No Steel Structural Steel Fireproofing Data Appendix G~A Room-Elevation:
6205-2026 Bulldlng:
Fuel Fire Area: F-01
Description:
Fuel Transfer Canal Thermal Short #I (TSI) Data Drawing: NIA Member Type: NIA Member Size: NIA Comments:
No Steel m I No sketch required.
' .Wk.I ' ;Lp; #' -2 7 No sketch required.
M-663-00017A, Revision W03 Page GlA-159 of GIA-162 StructuraI Steel Fireproofing Data Appendix ~1 A Room-Elevation:
==
Description:==
New Fuel Storage Area Thermal Short #I ITS1 ) Data Member Size: Comments:
Building:
Drawing: NIR Member Type: M/R NIR No Fireproofing Room Sketch: Fuel Fire Area: Thermal Short #2 (TS2) Data NIA NIA NIA No Columns Thermal Short #I Sketch M463-Q00t 7A Revision W03 Page GIA-160 of GiA-162 I I Structural Steel Fireproofing Data Appendix GI A I Room-Elevation:
1
Description:
Drawing: General Floor Area Thermal Short #I (TSI) Data NIR Building:
Fuel Fire Area: I Member Type: NIR Member Sixe: NlR Comments:
No Fireproofing Thermal Short #2 (TSZ) Data NIR NR NIR No Fireproofing Room SketcF- = No sketch required.
Thermal Short #'I Sketch - . No sketc,h required.
M-663-00017A Revlslon W03 Page GlA-161 of GjA-162 Structural Steel Fireproofing Data Appendix G1A Room-E levation:
6302-2047 Building:
Fuel Fire Area: F-01
Description:
Laydown Area Thermal Short #1 (TSI) Data Drawing: NIR Member Type: NIR Member Size: NIR Comments:
No Fireproofing Thermal S hart #2 (TS2) Data MIR NIR NIR No Fireproofing No sketch required.
M-663-000f 7A, Revision W03 Page GqA-162 of GIA-t62 I Structural Steel Fireproofing Data Appendix GIA I Room-Elevation:
RB00-2000 Building:
Reactor FIre Area: (
Description:
I Drawing: I Member Type: I Member Size: I Comments:
Reactor Building Thermal Short #1 ITS1 I Data NIA NIA Structural Steel in the Reactor Building does not require Fireproofing Room Sketch: - Thermal Short #2 (TS2) Data NIA NIA NIA Structural Steel in the Reactor Building does not require Fireproofing 1:. ,? No sketch required.
/ No sketch required.
Page 1 J%ug ;LF CREEK w w-' 71 NUCLEAR OPERATING CORPORATION Attachment G2 Fire Protection Evaluation For Structural Steel Fireproofing With Unprotected Thermal Shorts Within Open Rooms Rev. No. W03 Prepared By d& Date 611 5/07 Reviewed By Date 611 5/07 Table of Contents Revision Log .................................................................................................................................
3 1.0 Purpose
.............................................................................................................................
4 2.0 Scope ................................................................................................................................
4 ........................................................................................................................
3.0 References 4 4.0 Assumptions
......................................................................................................................
5 5.0 Assessment of Condition to Design Requirements
...........................................................
5 6.0 Methodology
......................................................................................................................
8 .........................................................................................................................
7.0 Evaluation 9 8.0 Conclusions
.....................................................................................................................
I I Appendix G2A, NUREG-1805 FDT Example
.............................................
(3 Total Pages)
Appendix G2B, Thermal Short and Room Data
.........................................
(79 Total Pages) M-663-00017A Page 2 of 1 1 Attachment G2 Revision W03 Revision Log M-663-000 17A Page 3 of 11 Attachment G2 Revision W03 Revision W03 Reason for Revision Original Issue M-663-000 17A Attachment G2 Revision W03 Page 4 of 1 1 1.0 Purpose 1.1 The purpose of this document is to evaluate the acceptability of protected structural steel with unprotected steel attachments (thermal shorts) that are welded to the building steel. This evaluation was conducted in accordance with the guidance of NRC Generic Letter 86-10 and Regulatory Guide 1.189. 2.0 Scope 2.1 This evaluation is applicable to the Rooms identified in Table II 3.0 References 3.1 NRC Generic Letter 86-10, Implementation of Fire Protection Requirements, dated April 24, 1986 3.2 10 CFR 50 Appendix R, Fire Protection Program For Nuclear Power Facilities Operating Prior To January 1, 1979 3.3 NRC lnspection Manual 0609, Appendix F, Fire Protection Significant Determination Process, dated 02/28/05.
3.4 NUREGICR-6850, Fire PRA Methodology for Nuclear Power Facilities, published 0912005 3.5 NUREG-1805, Fire Dynamics Tools (FDTs) Quantitative Fire Hazard Analysis Methods for the U.S. Nuclear Regulatory Commission Fire Protection lnspection Program, published 1212004 3.6 NUREG-1824, Verification and Validation of Selected Fire Models for Nuclear Power Plant Applications 3.7 Regulatory Guide 1.189, Fire Protection For Operating Nuclear Power Plants, April 2001 3.8 ASTM E-119, Standard Test Methods for Fire Tests of Building Construction and Materials 3.9 UL N-711, (A-126-00001), Fire Test Report Of Loaded Restrained Beams Protected By Cementitious Mixture, Dated August 1 1, 1976 3.10 UL N-712, (A-126-00002), Fire Test Report Of Loaded Restrained Beams Protected By Cementitious Mixture, Dated May 13, 1977 3.1 1 A-126, Technical Specification For Cementitious Fireproofing Of Structural Steel For The Standardized Nuclear Unit Power Plant Unit (SNUPPS) 3.12 PIR 2002-2287, Structural Steel Fireproofing With Unprotected Attachments 3.13 FP-M-012, Rev 0, Structural Steel Fireproofing Thermal Shorts and Omissions Evaluation M-663-000 1 7A Page 5 of 1 7 Attachment G2 Revision W03 3.14 CNT-MC-600, Rev. 2, Fireproofing of Structural Steel 3.1 5 Drawing A-1 801, Rev. 10, Architectural Fire Delineation Floor Plan EL 1974-0" 3.16 Updated Safety Analysis Report (USAR) Section 9.5.1.2.2.3.c, Rev. 15 and Table 9.5A-1 Sheet 27, Rev. 4 4.0 Assumptions 4.1 It is assumed that fireprmfing material used to protect building steel is applied to a thickness as required by CNT-MC-600.
This is an acceptable assumption based on a review of the Quality Control documentation maintained during initial fireproofing installation activities and subsequent inspe&ons during ongoing plant repairs witnessed by Fire Protection personnel.
5.0 Assessment of Condition to Design Requirements 5.1 Reauirements USAR Section 9.5.1.2.2.3.c , identifies that the notes contained on Figure 9.5.1-2 [Drawing A-18011 define the structural steel fireproofing requirements.
The structural steel of all of the ceilings of the fire areas is fireproofed with 3-hour protection with the exception that no fireproofing is provided on the underside of the fuel building roof. USAR Table 9.5A-1 Sheet 27 (Rev. 4), that structural steel supporting the Control and Auxiliary Building roofs is protected with P-hour] rated fireproofing.
Table I identifies the ASTM E-119 temperature limitations for structural steel protected with fireproofing.
TABLE I ASTM E-I 19 Temperature Limitations
' - ur Fire Exposur Maximum Averas, 5.2 Assessment At Wolf Creek, fireproofing material is generally applied over exposed surfaces of structural members with the exception of thermal shorts and intervening items. Underwriters Laboratories (U L) has tested several different size members utilizing both Albi Duraspray and Monokote 2-146 coatings to Bhour ASTM E- 119 fire exposures.
The testing for beams and columns, utilized W8 x 28 steel shapes incorporating two protection methods; contour and boxed. However, testing of both techniques did not incorporate thermal short attachments.
Therefore, the affect of heat flux into plant structural steel with unprotected thermal shorts is not directly bounded by fire testing. FP-M-012 revealed that unprotected thermal shorts, larger than Unistrut, contribute to single point M-663-00017 A Attachment G2 Revision W03 Page 6 of 11 Fire Room Area 1101 A-1 1120 1121 1122 1130 1202 A-3 1117 A-8 1301 1314 1315 1318 1320 A-16 1401 1402 1406 1408 temperatures that in some cases exceed the ASTM E-119 acceptance criteria, assuming a 3-hour fire exposure.
Typically, average temperatures satisfied the ASTM E-119 acceptance criteria.
Refer to Table II for the specific rooms that are addressed by this evaluation.
TABLE II StW1uctural Steel in Open Rooms with Natural Ventilation Building Elev. TableUI Table Ill Group ASTM E*1 1 8 Rating Auxiliary 1974-0 Ge n eral Floor Area No. 1 I 1 Beam: About 2-Hours Auxiliary 1974-0 General Floor Area No. 2 N/R 'Beam: Embedded I 2 Column: Nearly 3-Hours, See Note 2below Auxiliary 1974-0 Access Pit N/A Beam: Rev i ewed as Part of Room 1120 2 Column: Nearly 3-Hours, See Note 2 below Auxiliary 1974-0 General Floor Area No. 3 1 Beam: About 2 Column: Nearly 3-Hours , See Note 2 below Auxiliary 1974-0 North Corridor 1 Beam: A'bout 2-Hours, See Note 1 below Auxiliary 1988-0 Access Area B & Chiller 1 Beam: About 2-Hciurs Surge Tank Area 2 Column: Nearly 3-Hours, See Note 2below Auxiliary 1974-0 Boric Ac i d Tank Room A 1 Beam: About 2-Hours See Note 3 Below Auxiliary 2000-0 Corridor No. 1 4 Beam: 1.8 Hours, See Note 2 2 Column: Nearly 3-Ho u rs, See Note 2below Auxiliary 2000-0 Corridor No. 3 1 Beam: About 2-Hours , Attachment size smaller than analvzed. Auxiliary 2000-0 Ctmt Spray Additive Tank 1 .Seam: About 2-Hours , Attachment Area size I s smaller than analyzed. 2 Column: Nearlv 3-Hours Auxiliary 2000-0 Valve Compartment 1 Beam: About 2-Hours, Attachment size i s smaller than analyzed. Auxiliary 2000-0 Corridor No. 4 1 Beam: About 2-Hours See Note 3 Below 2 Column: Nea ril y 3-Hours , See Notes 2 and 3 below Auxiliary 2026-0 Component Cool i ng Pump , Beam: About 2-Hours & Heat Exch Area B 3 Column: About 1-Hour Auxiliary 2026-0 Corridor No. 1 1 Beam: About 2-Hours , Attachment size is smaller than analvzed. Auxiliary 2026-0 Component Cooling Pump 1 Beam: About 2-Hours , Attachment
& Heat Exch Area A size is smaller than analyzed. 3 Co l umn: About 1-Hour Auxiliary 2026-0 Corridor No. 2 1 Beam: About 2-Hours, See Note 1 be l ow 2 Column: Nearly 3-Hours , See Note 2 below
- I I 1 ' 1 * ..
M-663-000 17A Page 7 of 1 1 Attachment G2 Revision W03 Fire Room I Buildi~ I
Description:
Table Ill Table Ill Area Group ASTM E-119 Ratins A-19 1504 ..,.....,.
,,,e Exhaust & 1 Beam: About 2-Hours Mech Equip Rm B 2 Column: Nearly 3-Hours, See Note 2 Mow ------ I 506 Auxjliary 2047-6 Ctmt Purge Supply Air I Beam: About 2-Hours, See Mote 1 Handling Unit A below 3 Column: About 1-Hour, Attachment size is smaller than analyzed.
1513 Auxiliary 2047-6 Control Bldg Vent Supply 7 Beam: About 2-Hours, Attachment AIC Unit Rm size is smaller than analyred.
2 Column: Nearly 3-Hours, Attachment size is smaller than analyzed.
A-20 1502 Auxiliary 2047-6 Component Cooling I Beam: Atmul2-Hours, See Note 1 Water Surge Tank Area 8 below 1503 Auxiliary 20476 Component Cooling 1 Beam: About 2-Hours. See Note 1 Water Surge Tank Area A below 1505 Auxiliary 2047-6 Corridor 1 Beam: About 2-Hours, Attachment siite is smaller than analyzed.
1 507 Auxiliary 2047-6 Personnel Hatch Area 1 Beam: About 2-Hours, See Note I below 3 Column: About f-Hour, Attachment size is smaller than analyzed.
A-23 1508 Auxiliary 2042-0 Main Steam Isolation 1 Beam: About BHours, Attachment Valve Rrn No. 1 sire is smaller than analyzed.
1509 Auxiliary 20424 Main Steam Isolation 1 Beam: About 2Hours, Attachment Valve Rrn No. 2 size is smaller than analyzed.
A-29 1324 Auxiliary 2000-0 Feedwater Pump Valve 4 Beam: 1.8 Hours, See Note 2 Compartment No. 1 A30 1330 Auxiliary 2000-0 Feedwater Pump Valve 1 Beam: About 2-Hours, Attachment Compartment No. 4 size is smaller than analyzed.
A-33 1206 Auxiliary 1989-0 Pipe Chase 4 Beam: 3.8 Hours. See Mote 2 2 Column: Nearly 3-Hours, Attachment size smaller than analyzed.
See Note 2 below 1207 Auxiliary 19890 Pipe Chase 4 Beam: 1.8 Hours, See Note 2 2 Column: Mearty 3-Hours, Attachment size smaller than analyzed.
See Note 2 below C-35 34.01 Cor-rbol 20t6-0 Corridor No. 1 1 Seam: About 2-Hours 3406 Control 20f 6-0 Corridor No. 2 1 & 4 Beam: 1.8 Hours, See Notes 2 and 3 2 Column: Nearly bHours, Attachment size smaller than analyzed.
See Notes 2 & 3 below 3412 Control 2016-0 Emergency Shower & 1 Beam: About 2-Hours, Attachment Eyewash Area size is smaller than analyzed.
See Note 3 Below Table II Notes: 1. Category I (H member) as been conservatively assigned to this beam atfachrnent configuration due to the lack of analysis of a W shape configuration welded to the bottom beam flange. It should be noted that W shapes thermally perform significantly better than H shapes due to the larger exposed ares of the H shape. Hot spot forms in Web area around thermal short. Structural considerations could show this element performs its intended design function for three-hours.
Thls Note is a direct excerpt from Calculation FP-M-012.
Refer to Attachment G5 for the Heat Affected Zone (HAZ) review where steel is an integral element of the fire barrier assembly M-663-000 1 7A Attachment G2 Revision W03 Page 8 of I I 6.0 Methodology As discussed in Section 12.2.2 of M-663-00017A, Section 4.2.2 of Regulatory Guide 1.189 identifies that structural steel is not required to be protected to the fire resistance rating of the barrier [typically 3-hours], provided analysis demonstrates that the steel temperature reached during fire exposure does not result in structural failure of the steel. Considering the results of FP-M-012, where an ASTM E-119 3-hour fire was modeled to assess thermal insult presented by unprotected attachments connected to protected steel, the Reg. Guide 1 .I89 approach allowance is utilized to address impact of unprotected thermal short attachments larger than Unistrut. Walkdowns were conducted on a room-by-room basis utilizing structural steel drawings and a best effort visual inspection to determine the worse case thermal short configuration for columns, beams and where structural steel serves as an Appendix R fire boundary. For the purpose of this evaluation, all unprotected thermal shorts greater than Unistrut were reviewed and considered relevant to determine worse case scenario.
FP-M-012 demonstrated that thermal short attachments equivalent to Unistrut did not present a thermal conductive path that would challenge structural steel integrity, assuming an ASTM E-I 19 fire exposure.
See section 12.2.3 of M-66340017A for further discussion regarding the overall fireproofing assessment methodology utilized in the identification process for selecting the worse case thermal short configuration.
Each worse case thermal short configuration was then compared to the configurations identified in Table Ill, from FP-M-012, which were modeled assuming an ASTM E-119 3-hour fire exposure.
The fire resistance rating of the Table Ill configuration that provided the closest match to the worse case configuration was utilized to infer an approximate fire resistance rating, again assuming an ASTM E-119 3-hour fire exposure. This comparison information is captured in Table II. In all cases the structural steel for the rooms satisfied at least a I-hour rating, and in several cases nearly a 3-hour rating. Additionally, many unprotected attachment members were smaller than that analyzed in FP-M-012, and therefore the beam or column being evaluated is expected to perform better than that indicated.
In effort to assess structural steel performance considering representative plant configurations and hazards, the NUREG-1 805 Fire Dynamics Tools (FDT) were utilized to determine the maximum hot gas layer temperature anticipated within the rooms considering bounding simple fire heat release rates provided in Appendix F of NRC Inspection Manual 0609.
M-663400 1 7A Attachment G2 Revision W03 Page 9 of 1 1 TABLE Ill Thermal Short Configurations Analyzed In FP-M-012 -emdm Summary J "IF Short Confi gumtion ~~~nce Rating I Typical H-Shape thermal About two-hours Large segment of Range short on a moderate size exceeds peak temperature beam. criterion.
2 Multiple W-Shape thermal Nearly three- Hot spot formation on the web. shorts on a large size hours Structural considerations muld column. show this element performs function for three-hours, 3 Large H Shape thermal short About one-hour Large segment of entire cross- on a large size column. section exceeds peak ternpemture criterion.
4 Typical W-Shape thermal 1 .&hours Hot spot forms in web area short on a moderate size around thermal short. beam. Structural considerations could show this element performs function for three-hours.
5 Small thermal short Over three-hours Provides indications of Unistnrt (Unistrut) on a moderate impact on temperature field in size beam. structural steel. These thermal shorts have litde impact on primary structural element steel temperature.
6 Small thermal short Over three-hours Provides indications of Unistrut (Unistrut) on a moderate impact on temperature fie Id in she beam. Thermal structural steel. This is the Insulation on beam within most severe type of Unistrut the Unistrut Is missing. thermal short. .A 7.0 Evaluation Each Room identified in Table ll was reviewed and evaluated to determine if building structural members with unprotected steel attachments larger than Unistrut would affect the steel integrity in the event of fire. it was determined by utilizing NUREG-1805 Fire Dynamics Tools that these rooms would not develop a hot gas layer that would influence the existing building steel, and existing building steel protection configurations are acceptable to maintain building integrity.
Each room listed in Table II interfaces with one or more rooms through significant openings such as passageways, corridors, etc. that provide considerable venting and cooling capability.
Considering that the open room configuration effectively presents a natural ventilation arrangement for each room, NUREG-1 805 FDT u02.1-Temperature-NV.~1~a (Version 1805.1), was utilized to assess room hot gas layer temperature development.
An example of the FDT is provided in Appendix G2A. This FDT is a method developed, prepared, and validated by the Nuclear Regulatory Commission (NRC) to allow a consistent, simplified approach to calculate developing gas layers within open rooms.
M-663-00017A Attachment G2 Revision W03 Page 10 of 1 1 Data collection necessary for FDT input is provided in the individual room data sheets documented in Appendix G2B. Input information necessary for the FDT is as follows: Compartment width (fl) Compartment length (ft) Compartment height (ft) Barrier type (concrete or concrete block) Barrier thickness (in) Vent width (ft) Vent height (ft) Top of vent from floor (R) Ambient air temperature (OF) Fire Heat Release Rate (kW) In some situations, rooms contained multiple vents or openings to other areas. In these instances, only one vent or opening was used as input into the FDT to achieve a level of conservatism.
A fire with a constant 650 kW heat release rate (HRR) was utilized for the Table II rooms. This HRR was chosen considering the guidance of Appendix F to NRC Inspection Manual 0609. Table IV, extracted from the Inspection Manual, reveals that a 650 kW HRR is based on a large electrical fire that reflects a high confidence limit (98'h percentile) fire severity. This fire severity envelops large electrical fires, transient combustible fires, and 90% of very large fire sources. Although, the majority of the rooms evaluated in Table 11 would not likely produce a fire severity equivalent to 650 kW, the consewative fire intensity input ensures a bounding credible fire was utilized for the rooms of concern, without necessitating a detailed quantitative review of room contents.
In all cases, specific room area input into the FDT yielded hot gas layer results at a 180-minute duration that were less than the ASTM E-119 average temperature limitations identified in Table I. Refer, to the Appendix G2B room data sheets for specific results. The FDT results demonstrate that the natural venting provided for the open rooms is the primary contributor to the lower temperatures reflected through the FDT modeling process. During ASTM E-119 fire testing, temperatures are recorded on the steel surface underneath the fireproofing protective coating in effort to assess fireproofing effectiveness when subjected to approximate 1925 OF fire exposure for a 3-hour duration. Considering that the FDT calculated room hot gas layer temperature was less than the Table I ASTM E-119 average temperature
[imitations, it is reasonable to conclude that unprotected thermal short attachments will not present a thermal failure mode to the structural steel, since the room will not attain temperatures during the postulated fire event that would challenge steel structural integrity.
M-663-00017A Attachment G2 : Revision W03 Page 11 of 11 i TAB E 1 1V *Generic Fire Bins 1 ** General Fire Scena1o Chlf'8Cterlatlon Tp lnllnslly ,. .... ,_.., 1 flreType-wllh81
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.7 5 1 1 75"' P ercentile i Fire Percentile Fire Fire -200kW 98., Pereentile 75"' 98 .. 98"' Percentile Ara Percentile
' Percentile Are 'Fi re Fire 650kW 98 .. 75 m Percent il e 7511l Pen:entile Fire Percen l i l e Are if;i re -2MW 98-.r Peroentile Are 10MW 98 .. Percentile Are Table IV Note: 1. Information eld r acted from NRC Inspection Manual 0609, Appe n d ix F , Ta'ble 2.3.1. 8.0 Post Fire Safe Shutdown Impact There is no impact to post-fire safe shutdown (PFSSD) capability , as the evaluation demonstrates that postulated fire event room temperate will not result in detrimental impact to structural steel integrity. Refer to Attachment G5 for the Heat Affected Zone (HAZ) review where steel is an integral element of the fire barrier assembly. 9.0 Conclusions This evaluation demonstrates that unprotected therma l shorts , attached to structura l steel within the Table II rooms , does not result in a 'detrimental impact to structura1 steel integrity. Utilization of NUREG-1805 FOTs revealed that hot gas layer temperatures for each of the Table II rooms did not exceed the ASTM E-119 maximum average exposure temperature for beam or column limitation in the associated room. Therefore , the protected structural steel configurations within these rooms are acceptable for the intended service , and will not degrade the affected fire barrier or structura l integr i ty of the building steel, or affect redundant PFSSO capability. Based on the above discussion , it is reasonable to conc l ude that the existing fireproofing o*n the structura l steel with unprotected attachments will satisfy regulatory expectations and commitments as well as WCNOC Fite 1 Protection Program requirements , to prevent building steel failure as a result of fire exposure. ..
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