ML16343A691
| ML16343A691 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek, Diablo Canyon, Callaway, Comanche Peak  |
| Issue date: | 10/31/1996 |
| From: | Polich T NRC (Affiliation Not Assigned) |
| To: | Beckner W NRC (Affiliation Not Assigned) |
| References | |
| AL-96-04, AL-96-4, NUDOCS 9611040173 | |
| Download: ML16343A691 (36) | |
Text
MEMORANDUM TO:
FROM:
SUBJECT:
October 31, 1996 Wil m D. Beckner, Director Project Directorate IV-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Timothy J. Polich, Project Manager ORIG.
SIGNED BY:
C. Patel
- for, Project Directorate IV-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation FORTHCOMING MEETING WITH TEXAS UTILITIES ELECTRIC COMPANY (TU ELECTRIC),
UNION ELECTRIC COMPANY (UE),
WOLF CREEK NUCLEAR OPERATION CORPORATION (WCNOC),
AND PACIFIC GAS 5 ELECTRIC COMPANY (PG&E)
ON THE JOINT TECHNICAL SPECIFICATION CONVERSION PROCESS AND SCHEDULE DATES L TIMES:
November 14,
- 1996, 9 a.m. to 11 a.m.
LOCATION:
PURPOSE:
One White Flint North 0-6-B-13 11555 Rockville Pike Rockville, Maryland 20852 Room 0-6-B-13 To discuss Administrative Letter 96-04 and the process and schedule being used by Comanche
- Peak, Diablo Canyon, Wolf Creek and Callaway in their joint conversion to the Improved Standard Technical Specifications.
PARTI C IPANTS*:
NRC N. Gilles T. Polich S.
Bloom J.
Stone K. Thomas Utilities D. Woodlan, TU Electric P. Nugent, PGLE D. Shafer, UE S.
- Wideman, WCNOC Docket Nos.
50-275, 50-323, 50-445, 50-446, 50-482, and 50-483 cc:
See next page CONTACT:
Timothy J. Polich 301-415-1038
- Meetings between NRC technical staff and applicants or licensees are open for interested members of the public, petitioners, intervenors, or other parties to attend as observers pursuant to "Commission Policy Statement on Staff Meetings Open to the Public" 59 Federal
~Re ister 48340, 9/20/94.
Document Name:
CP961114.HTG OFC PH PD4-NAME TPol ich: s DATE
/'~ 3 //96 COPY YE NO OFFICIAL ORD COPY q~iipopi73 0027@
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DISTRIBUTION:
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MEMORANDUM TO:
FROM:
SUBJECT:
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D.C. 20Ri&0001 October 31, 1996 William D. Beckner, Director Project Directorate IV-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation Timothy J. Polich, Project iianager
~+Jeer Project Directorate IV-1 Division of Reactor Projects III/IV Office of Nuclear Reactor Regulation FORTHCOMING MEETING WITH TEXAS UTILITIES ELECTRIC COMPANY (TU ELECTRIC),
UNION ELECTRIC COMPANY (UE),
WOLF CREEK NUCLEAR OPERATION CORPORATION (WCNOC),
AND PACIFIC GAS ELECTRIC COMPANY (PG&E)
ON THE JOINT TECHNICAL SPECIFICATION CONVERSION PROCESS AND SCHEDULE DATES & TIMES:
November 14,
- 1996, 9 a.m. to ll a.m.
LOCATION:
PURPOSE:
One White Flint North 0-6-B-13 11555 Rockville Pike Rockville, Maryland 20852 Room 0-6-B-13 To discuss Administrative Letter 96-04 and the process and schedule being used by Comanche
- Peak, Diablo Canyon, Wolf Creek and Callaway in their joint conversion to the Improved Standard Technical Specifications.
PARTICIPANTS*:
NRC N. Gilles T. Polich S.
Bloom J.
Stone K. Thomas Utilities D. Woodlan, TU Electric P. Nugent, PG&E D. Shafer, UE S.
- Wideman, WCNOC Docket Nos.
50-275, 50-323, 50-445, 50-446, 50-482, and 50-483 cc:
See next page CONTACT:
Timothy J. Polich 301-415-1038
- Meetings between NRC technical staff and applicants or licensees are open for interested members of the public, petitioners, intervenors, or other parties to attend as observers pursuant to "Commission Policy Statement on Staff Reetings Open to the Public" 99 Federal
~Re ister 48340, 9/20/94.
f
TU Electric Company CC:
Senior Resident Inspector U.S. Nuclear Regulatory Commission P. 0.
Box 1029
- Granbury, TX 76048 Regional Administrator, Region IV U.S. Nuclear Regulatory Commission 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 Mrs. Juanita Ellis, President Citizens Association for Sound Energy 1426 South Polk
- Dallas, TX 75224 Mr. Roger D. Walker TU Electric Regulatory Affairs Manager P. 0.
Box 1002 Glen Rose, TX 76043 Texas Utilities Electri c Company c/o Bethesda Licensing 3 Metro Center, Suite 610
- Bethesda, MD 20814 George L. Edgar,
- Esq, Morgan, Lewis 5 Bockius 1800 H Street, N.W.
Washington, DC 20036-5869 Comanche
- Peak, Units 1 and 2
Honorable Dale HcPherson County Judge P. 0.
Box 851 Glen Rose, TX 76043 Office of the Governor ATTN:
Susan Rieff, Director Environmental Policy P. 0.
Box 12428
- Austin, TX 78711 Arthur C..Tate, Director Division of Compliance
& Inspection Bureau of Radiation Control Texas Department of Health 1100 West 49th Street
- Austin, TX 78756-3189 Hr.
C.
Lance Terry TU Electric Group Vice President Nuclear Attn:
Regulatory Affairs Department P. 0.
Box 1002 Glen Rose, TX 76043
1 I
Meetin Notice Distribution:
~Hard Co Docket File+
PUBLIC PDIV-I r/f OGC ACRS TPolich PMNS Receptionist, OWFN E-Mail R.
Zimmerman (RPZ)
J.
Roe (JWR)
E.
Adensam (EGAI)
W. Beckner (WDB)
T. Polich (TJPl)
C.
Hawes (CMH2)
E. Jordan (e-mail to JKR)
W. Bateman (WHB)
S.
Bloom (SDBl)
J.
Stone (JCS3)
Thomas (KMT)
C. Grimes (CIG)
N. Gilles (NVG)
D. Matthews, (DBM)
A. Chaffee, (AECI)
J. Mitchell, (JAM)
EDO J. Dyer, (JED2)
Region IV B. Henderson (BWH), Region IV M. Hammond (MFH2), Region IV, WCFO
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November 5, 1996 MEMORANDUM TO:
K. Steven West, Chief Fire Protection Engineering Section Plant Systems Branch FROM:
SUBJECT:
Chris S.
- Bajwa, Reactor Systems Engineer Fire Protection Engineering Section TRIP TO OMEGA POINT LABORATORIES - PACIFIC GAS AND ELECTRIC COMPANY (PG&E)
PYROCRETE FIRE ENDURANCE TESTS (OCTOBER 1-3, 1996)
(TAC. NOs.
H96540 and 96541)
On October 1 - 3,
- 1996, I visited Omega Point Laboratories (OPL),
San Antonio, Texas to witness 3 fire endurance tests conducted for Pacific Gas and Electric Company (PG&E).
Three separate test assemblies were constructed by PG&E using Pyrocrete and delivered to OPL.
The test assemblies were constructed to represent configurations currently present at the Diablo Canyon Nuclear Power Plant.
The assemblies included:
1)
A 36 x 36 x 36 inch (nominal) box with a 2" thickness of Pyrocrete installed over the frame.
A 27-1/2" long, 4" diameter rigid steel conduit was installed in the box 2" from the fireside face of the box; 2)
An assembly similar to the first, with the addition of mineral wool insulation 1" thick installed over the Pyrocrete enclosure and covered with two (5/8") layers of Firecode type "c" gypsum wallboard; 3)
A 36 x 36 x 36 inch (nominal) junction box enclosure, complete with hatch access doors and access door cover surrounding a simulated 20 gauge junction box.
The fire tests were conducted in accordance with Supplement 1 to Generic Letter 86-10, "Fire Endurance Test Acceptance Criteria for Fire Barrier Systems Used to Separate Redundant Safe Shutdown Trains Within the Same Fire Area."
The techniques used to construct the test specimens followed the design details and procedures developed by PG&E, who constructed the specimens.
Attached is my trip report which documents the results of these tests.
Attachment:
As stated
Contact:
Chris Bajwa, NRR 301-415-1237 DISTRIBUTION:
Docket File (50-275/323)
Plant File Central File LHarsh CBajwa SWest PHadden EConnell DOCUMENT NAME: G: iSECTIONCiBAJWAiINSPECTIONiOPL. TST SPLB R/F SBloom To receive a copy of this document, indicate in the box:
"C" "- Copy uithout attachment/enclosure "E" -"Copy with attachment/enclosure "N" ~ Ko co y OFFICE KRR:SPLB KRR:SPLjj KANE CBajua SMest DATE 11b /96 11/
6 OFFICIAL RECORD COPY
n
TRIP REPORT ATTACHMENT Licensee:
Docket Nos.:
Plant:
Activity:
Trip date:
Reviewer:
INTRODUCTION Pacific Gas and Electric Company (PG&E) 50-275/323 Diablo Canyon Power Plant, Units 1
and 2
Test of Pyrocrete Fire Barriers and Junction Box October 1-3, 1996 Chris S.
Bajwa, Reactor Systems
- Engineer, Fire Protection Engineering Section SPLB/DSSA/NRR On October 1 - 3,
- 1996, C.
Bajwa visited Omega Point Laboratories (OPL),
San Antonio, Texas to witness 3 fire endurance tests conducted for Pacific Gas and Electric Company (PG&E).
Three separate test assemblies were constructed by PG&E using Pyrocrete, a cementatious fire resistant material, and delivered to OPL.
The test assemblies were representations of configurations currently present at the Diablo Canyon Nuclear Power Plant.
The objective of the tests was to qulify potective fire barrier systems for redundant essential cables in an Appendix R safe shut down circuit.
The fire tests were conducted in accordance with Supplement 1 to Generic Letter (GL) 86-10, "Fire Endurance Test Acceptance Criteria for Fire Barrier Systems Used to Separate Redundant Safe Shutdown Trains Within the Same Fire Area."
The test specimens were constructed by PG&E in accordance with their design details and procedures.
Personnel contacted during this visit: Lou Pons, PG&E, Dave Bidwell, PG&E; Fleur de Peralta, Tri-En Corp.;
Herb Stansberry, Cleda Patton, Deggary Priest, and Kerry Hitchkock of OPL.
TEST
SUMMARY
AND RESULTS On October 1-3,
- 1996, OPL performed 3 full-scale fire endurance tests of Pyrocrete fire barriers representative of barriers used at the Diablo Canyon Power Plant.
The tests were conducted for PG&E, the licensee, in accordance with Supplement 1 to GL 86-10, "Fire Endurance Test Acceptance Criteria for Fire Barrier Systems Used to Separate Redundant Safe Shutdown Trains Within the Same Fire Area."
The assemblies tested included the following:
A 36 x'6 x 36 inch (nominal) assembly complete with 3/4" thick galvanized steel furring channels, USG 3.4 galvanized Diamond Mesh metal lath and a 2" thickness of Pyrocrete installed over the frame.
A 27-1/2" long, 4" diameter rigid steel conduit was installed in the box 2" from the fireside face of the box, (See Figure 1)
t 1
p 1
(2)
A 36 x 36 x 36 inch (nominal) assembly similar to the first, with the addition of 1" Z-bars (1" rise, 2" leg, 18 ga galvanized steel) attached to the Pyrocrete enclosure surfaces with 1/4"-20 bolts, 3" long, screwed into Hilti Toggler Bolt hollow wall anchors installed into holes provided in the Pyrocrete.
Mineral wool insulation 1" thick with 4 pcf density was installed over the Pyrocrete enclosure and covered with two 5/8" layers of Firecode type "c" gypsum wallboard.
Expanded galvanized metal lath corner guards (3" leg) were installed over the gypsum corners.
The corner guards and screw heads were covered with joint compound.
(See Figure 2)
(3)
A 36 x 36 x 36 inch (nominal) junction box (JB) enclosure, complete with 3/16" steel plate interior, 3/4" thick galvanized steel furring
- channels, USG 3.4 galvanized Diamond Mesh metal lath and a 2" thickness of Pyrocrete installed over the frame.
The assembly included 2 hinged hatch access doors and an access door cover fabricated with 10 gage steel plate, 3.4 galvanized mesh lath, 3/4" furring channels and 2" of Pyrocrete.
An instrumented 20 gauge junction box was fabricated by OPL and installed inside the junction box enclosures (See Figure 3)
All of the specimens were instrumented with 24 GA Chromel-Alumel, electrically welded thermocouples, and mounted on a 70 x 70 x 8 inch concrete test slab.
The assemblies were mounted in a test bulkhead-(vertical wall) assembly which was mounted to the vertical fire resistance furnace.
The tests were conducted for a period of 120 minutes for the Pyrocrete box and the junction box enclosure (assemblies 1 and 3),
and 180 minutes for the Pyrocrete box with the additional layers of mineral wool and gypsum board (assembly 2).
The tests were conducted following the ASTH E-119 standard time-temperature fire.
For assemblies 1,
2, and 3, at the onset of the fire exposures, the ambient test temperatures were 67 'F, 72 F,
and 77 'F, respectively.
Following the guidance of Supplement 1 to GL 86-10, this ambient temperature established the average temperature rise criterion (as measured on the unexposed side of the fire barrier material) at 317 'F, 322 'F and 327 F,
and the maximum single point temperature criterion at 392 'F, 397 F,
and 402 'F, respectively.
Following the fire exposure, the assemblies were exposed to a fog nozzle hose stream test for 5 minutes in accordance with the criteria specified in Supplement 1 to GL 86-10.
On the basis of observations during the test, it appeared that test assemblies 1 and 3 met the acceptance criteria specified in Supplement 1 to GL 86-10 for a fire r ating of 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, while assembly 2 appeared to meet the acceptance criteria for a 3
hour rating.
A final determination of the performance of these barriers will require a review and evaluation of the final test report issued by OPL.
The results of the fire tests are presented in the Table 1 below.
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APPENDIX 1
TC¹1 TC ¹9 TC ¹2 TC ¹10 TC ¹3 TC ¹11 TC ¹4 Thermocou le Locations - Left Side INTERIOR ELEVATIONVIEN TC ¹5 TC ¹1 TC ¹2
/
TC ¹6 TC ¹3 TC ¹7 TC ¹4 TC ¹8 TC¹5 ~
Thermocou le Locations - Ri ht Side INTERIOR ELEVATIONVIEW NOTE:
The specimens were instrumented with 24 GA Chromel-Alumel, electrically-welded thermcouples, Special Limits of Error (+1.1'C),
purchased with lot traceability, fastened to the conduit surface (front) and the steel angle with small machine screws drilled and tapped into the steel.
The thermojunctions were clamped between the steel and the heads of these screws.
~~A Qor+
0 Pacific Gas And Electric Company Thermocouple Placement Details (As-Built)
Drawn By:
OPL Approval:
Client Approval:
g/volga I
g 36gc Scale:
1"=1'MEGA POINT LABORATORIES, INC.
Project No. 15594-100410
7 1/2" 6N 6"
7 1/2" 7 1/2" 6N 6
II P
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7 1/2" Interior Box Enclosure Details - Front back of door cover INTERIOR ELEVATIONVIEW (from interior)
NOTE:
The specimen was instrumented with 24 GA Chromel-Alumel, electrically-welded thermocouples, Special Limits of Error (a1.1'C),
purchased with lot traceability, fastened to the interior surface of the door cover with small machine screws drilled and tapped into the steel skin.
The thermojunctions wete clamped between the steel skin and the heads of these screws.
2 1/4" tolerance on all dimensions
~GA Ap pgtA'fp Pacific Gas And Eiectric Company Box Thermocouple Locations
-B ilt Drawn By:
OPL Approval:
Client Approval:
ro/7g'A'cale:
1-1/2'=1'MEGA POINT LABORATORIES, INC.
Project No. 15594-100409
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3/4" 7 3/4" 7 3/4" 7 3/4" TC ¹17 TC ¹16 TC ¹15 TC ¹14 TC ¹13 TC ¹12 TO TC ¹8 TC ¹7 TC¹6 9N 6 3/4" 6 3/4" 6 3/4" 6 3/4" TC ¹11 TC ¹10 TC ¹9 gw Interior Junction Box 6 3/4" 6 3/4" 6 3/4" 6 3/4" l ~
9'C
¹26 TC ¹25 TC ¹24 9N TC ¹29 9v 9N TC ¹28 TC ¹27 Thermocou le Details UNFOLDED ELEVATIONVIEW (from front)
RIQH BOTTOM TC ¹23 TC ¹22 TC ¹21 TC ¹20 TC ¹19 TC ¹18 9
II I
9N NOTE:
The specimen was instrumented with 24 GA Chromel-Alumel, electrically-welded thermocouples, Special Limits of Error (t1.1'C), purchased with lot traceability, fastened to the interior junction box surface with small machine screws drilled and tapped into the steel skin. The thermojunctions were clamped between the steel skin and the heads of these screws.
OMEGA POINT LABORATORIES, INC.
Project No. 15594-100409 Pacific Gas And Electric Company Drawn By:
OPL Approval:
r~/u'rc Junction Box Thermocouple Locations As-Built
+ 1/4" tolerance on all dimensions r
ORAVO Client Approval:
Scale: 3/4 =1'
8 1/4" 8 1/4" 8 1/4" I
/////////////////////~
7 1/2" 7 1/2" 7 1/2' 1/2' r /
r// /
r r r r r r r r r
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TC ¹46 TC ¹48 TC ¹47 Interior Box Enclosure Details Left Side INTERIOR ELEVATIONVIEW (from right)
////////////r//r/rr///rr/
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8 1/4 8 1/4
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V TC ¹49 TC ¹51 TC ¹50 Interior Box Enclosure Details
~Ri htSd INTERIOR ELEVATIONVIEW (from left) r / r r r r r r r r r r / r / r r r r r r r r r r J,
NOTE:
The specimen was instrumented with 24 GA Chromel-Alumel, electrically-welded thermocouples, Special Limits of Error (+1.1'C),
purchased with lot traceability, fastened to the interior surface with small machine screws drilled and tapped into the steel skin. The thermojunctions were clamped between the steel skin and the heads of these screws.
Pacific Gas And Electric Company Box Thermocouple Locations
-Built Drawn By.
OPL Approval:
rP/s/A'MEGA POINT LABORATORIES, INC.
Project No. 15594-100409
+ 1/4" tolerance on all dimensions c
AAto Client Approval:
Scale: 1"=1'
8 1/4" 8 1/4" 8 1/4" 44 ~
///// r //////////r////
7 1/2" 1
7 1/2" 7 1/2" r /
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t r4 TC ¹52 TC ¹53 TC ¹54 interior Box Enclosure Details Box Bottom INTERIOR PLAN VIEN (fi'Om tOP) r r r r r / / r / / / r / r r r r / r r r r r r r r r ii ~
8 1/4" 8 1/4" 8 1/4",
8 1/4" r r / r / r r r r / r r r / r r r r r r r r r r / r 7 1/2 7 1/2" 4
7 1/2" I
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Interior Box Enclosure Details
~Box To INTERIOR PLAN VIEN (from top)
NOTE:
The specimen was instrumented with 24 GA Chromel-AIumel, electrically-welded thermocouples, Special Limits of Error (+1.1'C),
purchased with lot traceability, fastened to the interior surface with small machine screws drilled and tapped into the steel skin. The thermojunctions were clamped between the steel skin and the heads of these screws.
~g,A 0(
0 Pacific Gas And Electric Company Box Thermocouple Locations As-Built Drawn By:
OPL Approval:
soir/'~i OMEGA POlNT LABORATORlES, lNC.
Project No. 15594-100409
+ 1/4" tolerance on all dimensions ORAg0 Ciient Approval:
!d- +
Scale: 1"=1'
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