ML20211L179
| ML20211L179 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 10/03/1997 |
| From: | Capra R NRC (Affiliation Not Assigned) |
| To: | Johnson I COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20211L184 | List: |
| References | |
| TAC-M98514, TAC-M98515, NUDOCS 9710100129 | |
| Download: ML20211L179 (4) | |
Text
_ _ - -. _ _ _ _
7 October 3, 1997 y, Ms. Irene M. Johnson $ Acting Manager-y' Nuclear Regulatory Services =
Commonwealth Edison Company _
Executive Towers West III
-1400 Opus Place, Suite 500?
Downers Grove,sIL 60515 SUBJECTr TEMPORARY RELIEF FORM ASME SECTION III REQUIREMENTS; USE OF LINE STOPPING EQUIPMENT ON-ESSENTIAL-SERVICE WATER ASME CLASS 3 PIPING; BYRON STATION, UNITS 1 AND 2 (TAC NOS. M98514 AND M98515)
Dear Ms. Johnson:
By letter dated April l1',1997,~ Commonwealth Edison Company (Comed), the licensee for Byron Station, Units 1 'and 2, requested temporary relief fra the requirements of the 1974 Edition of-the American Society of Mechanical Engineers (ASME) Boiler & Pressure Vessel Code (Code),Section III, to support its efforts to temporarily install mechanical line stopping equipment in individual 24" diameter Essential Service Water (SX) cooling tower cell return piping lines. Additional information was provided in Comed's letter of July 10, 1997.
The purpose of the line stopping equipment will be to l
temporarily isolate SX riser piping and its associated cooling tower cell from l
the remaining seven cooling tower cells and basin. This will allow for replacement of the existing 24". diameter carbon steel riser piping with stainless steel piping and to allow for the replacement and refurbishment of each corresponding riser isolation motor-operated valve. The riser pipes will
-be replaced individually. The plant technical specifications require six of the eight cells to be operable, so the system will remain operable during the replacement activities.
The staff has reviewed. the. request for relief and concluded that the proposed alternative provides an acceptable level of quality and safety.
Therefore, the relief request is granted pursuant to 10 CFR 50.55a(a)(3)(1).
The results of our review are included in the enclosed Safety _ Evaluation.
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Sincerely, a..S.4di 7
Original signed by C.-S CX FOR 3
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Robert A. Capra, Director Aq Project Directorate 111-2 Division-of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos. STN 50-454, STN 50-455 Il illll!I'I1.11l 1.1 II
Enclosure:
Safety Evaluation cc w/ encl:
see next page orsTRrBUT!0N: Docket File PUBLic P03 2 6,f EAdensam, EGA1 RCapra GDick JTatum, 0801 Atee,07E23 CMoore S8 alley OGC, 015B18 ACR$, T2E26 RLanksbury, RDL (Rill)
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S October 3.-1997 A
Ms.~ Irene M. Johnson, Acting Manager
- Nuclear Regulatory Services Commonwealth Edison Company-Executive Towers West III-1400 Opus Place, Suite-500-Downers Grove, IL--60515
SUBJECT:
TEMPORAPY RELIEF FORM ASME TECTION III REQUIREMENTS; USE OF LINE STOPPING EQUIPMENT ON ESSENTIAt.-SERVICE WATER ASME CLASS 3 PIPING; BYRON STATION. UNITS 1 AND 2 (TAC NOS. N98614 AND M98515)
Dear Ms. Johns >n:
By letter dated April 11, 1997 Commonwealth Edison Company-(Comed), the licensee for Byron Station,-Units 1 and 2, requested temporary relief from the requirements of the 1974 Edition of-the American Society of Mechanical Engineers (ASME) Boiler & Pressure Vessel Code (Code),Section III, to support its efforts'to temporarily install mechanical line stopping equipment in individual 24" diameter Essential Service Water (SX coolin piping lines. Additional information was provided nComEdgtowercell-return s letter of July 10, 1997.- The purpose of the line stopping equipment will be to temporarily isolate SX riser piping and its associated cooling tower cell from L
the remaining-seven cooling tower cells and basin. This will allow for i
replacement of the existing 24" diameter carbon steel riser piping with l
stainless steel piping and to allow for the replacement and refurbishment of
- each corresponding riser isolation motor-operated valve. The riser pipes will be replaced indiv dually. The_ plant technical specifications require six of the eight cells to be operable, so the system will remain operable during the replacement activities, i
The staff has reviewed the request for relief and concluded'that the proposed alternative provides an acceptable level of quality and safety.
Therefore, the relief request is granted pursuant to 10 CFR 50.55a(a)(3)(i).
- The results of our review are included in the enclosed Safety _ Evaluation.
Sincerely.
c.SbN Original signed by -G,-4%K FOR-Robert A. Capra, Director-Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos. STN 50-454, STN 50-455
Enclosure:
Safety Evaluation
- cc.w/ enc 1:
see next page DistateuYiani necket File PUsLIC P03 2 r/f EAdensam, EGA1 RCapre Wick JTetum, 0801 Aloe,07E23 Deoore stelley OGC. 015 eta ACRS. T2E26 RLenksbury. RDL (RIII)
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%k-UNITED STATES p
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. NUCLEAR REGULATORY COMMISSloN
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WASHINGTON, D.C. SeseMem
,4 October 3, 1997 g
L
' Ms. Irene M. Johnson,--Acting Manager
. Nuclear Regulatory Services t
Commonwealth Edison' Company Executive Towers West III 1400 Opus Place, Suite 500 i
Downers Grove, IL 60515
SUBJECT:
.TE.90RARY RELIEF FORM ASME SECTION III REQUIREMENTS; USE OF LINE i
STOPPING EQUIPMENT ON ESSENTIAL SERVICE WATER ASME CLASS 3 PIPING; BYRON STATION, UNITS 1 AND 2 (TAC NOS. M98514 AND M98515) l
Dear Ms. Johnson:
By letter dated April 11, 1997, Commonwealth Edison Company (Comed), the licensee for Byron Station, Units 1 and 2, requested temporary relief from the requirements of the 1974 Edition of the American Society of Mechanical
+
Engineers (ASME) Boiler & Pressure Vessel Code [ Code),Section III, to support
. its efforts to temporarily install mechanical Inne stopping equip;aent in i
individual 24" diameter Essential Service Water (SX) cooling tower cell return piping lines. Additional information was provided in Comed's letter of-July 10, 1997.. The purpose of the line stopping equipment will be to temporarily isolate SA riser piping and its associated cooling tower cell from
- the remaining seven cooling tower cells-and basin. This will allow for replacement of the existing 24" diameter carbon steel riser piping with stainless steel piping and to allow for the replacement and refurbishment of i
each correspording riser isolation motor-operated valve.
The riser pipes will the eight cells to be operable, plant technical specifications require eix of-be replaced individually. The i-so the system will remain operable during the 3
i i
replacement activities.
The staff has reviewed the request for relief and concluded that the proposed L
- alternativa provides an acceptable level of quality and safety. Therefore, the relief request is granted pursuant to 10 CFR 50.55a(a)(3)(1).
The results of our review are included in the enclosed Safety Evaluation.
Sincerely.
-C l
Ro rt
. Capra, Director Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation Docket Nos. STN 50-454, STN 50-455
Enclosure:
Safety Evaluation cc w/ enc 1: see next page li_.
r
,,r---r sw..
I. Johnson Byron Station-Commonwealth-Edison Company-Unit Nos. l'and 2 CC L Michael I. Miller, Esquire Chairman, Ogle County Board Sidley and Austin Post Office Box 357 Onc First National Plaza' Oregon, Illinois 61061 Chicago, Illinois 60603_
Mrs. Phillip B. Johnson Regional Administrator, Region III 1907 Stratford Lane U.S. Nuclear Regulatory Commission Rockford, Illinois 61107
-801 Warrenville Road Lisle, Illinois 60532-4351 Attorney deneral i
500 South Second Street
-Illinois Department of Springfield, Illinois 62701 l
Nuclear Safety l
Office of Nuclear Facility Safety EIS Review Coo-dinator 1035 Outer Park Drive U.S. Environmental Protection Agency l
Springfield, Illinois 62704 77 W. Jackson Blvd.
1 Chicago, Illinois -60604-3590 Document Control Desk-Licensing Commonwealth Edison Company Commonwealth Edison Company 1400 Opus Place, Suite 400 Byron Station Manager Downers Grove, Illinois-60515 4450 North German Church Road Byron, Illinois 61010
'Mr. William P. Poirier, Director Westinghouse Electric Corporation Kenneth Graesser, Site Vice President-Energy Systems Business Unit Byron Station Post Office Box-355, Bay 236 West Commonwealth Edison Station Pittsburgh, Pennsylvania 15230 4450 N. German Church Road Byron, Illinois 61010 Joseph Gallo Gallo & Ross 1250 Eye St., N.W.
Suite 302 Washington, DC 20005 Howard A. Learner Environmental-law and Policy Center of the Midwest 203 North LaSalle Street Suite 1390' Chicago, Illinois 60601 U.S. Nuclear Regulatory Commission Byron Resident Inspectors Office-4448 North German Church Road Byron, Illinois 61010-9750 Ms. Lorraine Creek Rt. 1, Box 182 Manteno, Illinois 60950
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