ML20083F275
| ML20083F275 | |
| Person / Time | |
|---|---|
| Site: | Seabrook  |
| Issue date: | 12/20/1983 |
| From: | Devincentis J PUBLIC SERVICE CO. OF NEW HAMPSHIRE, YANKEE ATOMIC ELECTRIC CO. |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.1, TASK-TM SBN-604, NUDOCS 8312300234 | |
| Download: ML20083F275 (5) | |
Text
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SEABROOK STATION M
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1671 Worcasser toed PhanInghom. MassochveeMs 01701 (617) - s72-8100 Pub 5c Service of New Hompshire December 20, 1983 SBN-604 T.F. B7.1.2 United States Nuclear Regulatory Commission Washington, D. C. 20555 Attention:
Mr. George W. Knighton, Chief Licensing Branch No. 3 Division of Licensing
References:
(a) Construction Permits CPPR-135 and CPPR-136, Docket Nos. 50-443 and 50-444 (b) USNRC Letter, dated July 11, 1983, " Amendment 49 to March 30, 1973 Application to Construct and Operate Seabrook Station Unit I and Unit 2", W. P. Johnson to G. W. Knighton
Subject:
Containment High-Range Radiation Monitor Location
Dear Sir:
Section 12.3.4.1 (" Area Radiation Monitoring System") of the Safety Evaluation Report includes a discussion of the Applicant's compliance with NUREG-0737, Item II.F.l(3) (" Containment High-Range Radiation Monitor"). The SER contains the following wording:
II.F.l(3) Containment High-Range Radiation Monitor Seabrook Station will have two high-range radiation monitors installed in containment. These monitors will be designed, located, calibrated, and qualified in accordance with Table II.F.1-3 of NUREG-0737 and will have a separate read out in the electronics cabinet located outside containment in the electrical tunnel. Indication and alarm will be provided in the Control Room.
Subject.to a formal submittal of this TMI Action Plan Item followed by receipt of information showing the exact location of the monitors and staff acceptance of this location, the staff finds that Seabrook meets the position of Item II.F.1, Attachment 3 of NUREG-0737, 8312300234 031220 8
PDR ADOCK 05000443 E
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L 1000 Elm St.. P.O. Box 330. Manchester. NH O3105 Telephone (603) 669-4000 TWX 7102207595
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United States Nuclear Regulatory Commission-
' December 20,~1983
" Attention:.. Mr. George 'W.
Knighton, Chief Page 2
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.In OL Application Amendment 49, which was_ submitted.in May 1983
[ Reference (b)].we included a new FSAR Section 12.3.4.1.b.3 ("In-Containment High-Range Monitoring").. We believe that this new FSAR section satisfies the
" formal ~-submittal of the TMI Action Plan Item".[II.F.1(3)].-
lTo satisfy the requirement that we specify the " exact location of the
- monitors",, ve have revised FSAR Section 12.3.4.1.b.3, accordingly.
The' attached revised FSAR section will be included in a fr.ture OL: Application Amendment.-
Very truly yours,
' YANKEE ATOMIC ELECTRIC' COMPANY
/
ohn DeVincentis Project Manager
_. Attachment-
. cc: Atomic Safety and Licensing Board Service List-
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SB 1'& 2 Amendment 49
...$ 7 FSAR-May 1983 iA typical channel is shown in Figure 12.3-18.
High radiation levels during refueling at the manipulator crane l
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-area in the containment' structure' initiates isolation of the contain-di ment purge and' vest system.
Those dete'ctors which are designated as non-Class IE, and are located l
inside the containment. structure are not designed to operate follow-49
-ing;a major LOCA, and are assumed to be not available to monitor
. post-LOCA conditions inside containment.
. Refer.to Section 11.5.2 for a discussion of the local microprocessor f.
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. provisions and operating details.-
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~ Area Monitor Detectors.
X The area monitors. employ Geiger-Mueller and ion chamber gamma
-detectors, as. indicated on Table 12.3-13.
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Class IE Requirements
. A Separate redundant cabinets are provided in the-control room for. control, recording and remote indication for those monitors in Table':12.3-13 designated as Class IE.
These cabinets and
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Class.lE area monitors._are powered from their respective Class IE I
i inverters. -Class IE monitors supply their data to the RDMS 9
. host computer through an IEEE-279 acceptable isolation device.
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'No inform 3 tion or alarm setting is permitted between the RDMS.
host computer -and the Class IE equipment, All set point changes and check-source insertions are performed locally or from
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hard-wired modules in the control room.
3.
'In-Containment High Range Monitoring-
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Redundant Class lE detectors are located inside containment
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and are intended to monitor conditions during post-LOCA conditioas.
0 The' detector range is 10 -107 R/hr. The electronics cabinet is located outside containment in'the electrical tunnels.
Indication and alarm is--provided in the control room. These monitors will:be designed, located, calibrated'and qualified in;accordance with Table II.F.1-3 of NUREG-0737.
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-Area' Monitor Channel: Description
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.(a). Containment Manipulator Crane Area Monitor-Channels 6535 A
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e and B p
49 Redundant Class IE detectors are located on the manipulator f
3 crane. In the event of a fuel handling accident, these
-m'onitors isolate the containment en-line and off-line l
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purgeLisolation valves. Indication and alarm is provided
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'ocally and in'the main control room.
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. FSAR Section 12.3.4.1.b3 m
.The detectors are located.on the steam generator biological shield wall approximately six feet above the floor elevation. This location was selected to provide'the detectors as-large a view of containment as possible, consistent with affording ease of. access for. maintenance and calibration.<
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William S. Jordan, III, Esquire Brentwood Board of Selectmen Harmon & Weiss RED Dalton Road 1725 I Street, N.W. Suite 506 Brentwood, New Hampshire 03833 Washington, DC 20006 Roy P. Lessy,-Jr., Esquire Office of the Executive Legal Director Edward F. Meany U.S. Nuclear Regulatory Commission Designated Representative of the Town of Rye Washington, DC 20555 15i Washington Road Robert A.-Backus, Esquire Rye 7 05370
-116 Lowell Street P.O. Box 516 Calvin A. Canney Mancehster, NH 03105 City Manager City Hall Philip Ahrens, Esquire 126 Daniel Street Assistant Attorney General Portsmouth, NH 03801 Department of the Attorney General Augusta, ME 04333 Dana Bisbee, Esquire Assistant Attorney General Mr. John B. Tanzer Office of the Attorney General Designated Representative of 208 State House Annex the Town of Hampton Concord, NH 03842 5 Morningside Drive Hampton, NH 03842 Anne Verge, Chairperson Board of Selectmen Roberta C. Pevear Town Hall Designated Representative of South Hampton, NH 03842 the Town of Hampton Falls Drinkwater Road Patrick J. McKeon
.Hampton Falls, NH 03844 Selectmen's Office 10 Central Road Mrs. Sandra Gavutis Rye, NH 03870 Designated Representative of the Town of Kensington Carole F. Kagan, Esq.
RFD 1 Atomic Safety and Licensing Board Panel East Kingston, NH 03827 U.S. Nuclear Regulatory Commission Jo Ann Shotwell, Esquire
-Assistant Attorney General Mr. Angie Machiros Environmental Protection Bureau Chairman of the Board of Selectmen Depcrtment of the Attorney General Town of Newbury One Ashburton Place, 19th Floor Newbury, MA 01950 Boston, MA 02108 Town Manager's Office Senator Gordon J. Humphrey Town Hall - Friend Street U.S. Senate Amesbury, Ma.
01913 Washington, DC 20510 (Attn: Tom Burack)
Senator Gordon J. Humphrey 1 Pillsbury Street Diana P. Randall Concord, NH 03301 70 Collins Street (Attn: Herb Boynton)
SEabrook, NH 03874 Richard E. Sullivan, Mayor Donald E. Chick City Hall Town Manager Newburyport, MA 01950 Town of Exeter
'10 Front Street Exeter, NH 03833