ML20010G517
| ML20010G517 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 09/18/1981 |
| From: | Bordenick B NRC OFFICE OF THE EXECUTIVE LEGAL DIRECTOR (OELD) |
| To: | SHOREHAM OPPONENTS COALITION |
| References | |
| NUDOCS 8109220088 | |
| Download: ML20010G517 (7) | |
Text
.
09/18/81 UNITED STATES OF AMERICA Rh*I*
I4UCLEAR !;EGULATORY COMMISSION s
BEFORE THE ATOMIC SAFETY AND LICENSINC BOARD
//
C In the Matter of
)
cD,'
LOl4G ISLAND LIGHTING COMPA14Y
)
Docket Nc,. 50-3
)
' v31 g @ p (Shorehau Nuclear Power Station,
)
Unit 1)
)
14RC STAFF'S ADDITIONAL ANSWERS TO "50C'S FIRST SET OF INTERRUGATORIES AND Rg.MSTS FOR PRODUCTION OF DOCUMENTS * * * *"
Pursuant to the " Stipulation Relating to NRC Staff * * * *" dated July 20, 1981, and the "* *
- Stipulation Regarding SOC's Pending Discovery Request * * * *" dated August 6,1981, the " Status Report on Discussions Involving SOC, LILCO and the NRC Staff filed on August 31, 1981, and Staff Counsel's letter to SOC's Counsel dated September 4,1981, the NRC Staff herewith responds to the following indicated portions of " SOC's First Set of Interrogatories and Requests for Production of Docui.pnts to tne Nuclear Regulatory Commission Staff" dated July 2,1981.
SOC Contention 9 I
3.
The 14RC Staff's position with respect to indications of a bypassed or disabled condition is delineated in Regulatory Guide 1.47,
" Bypassed ~
and Inoperable Status Indication for Nuclear Power Plant Safety Systems",
and is discussed in the answer to question 4 below. Our answers to sub-parts a-a of question 3 are as fo'. lows:
a.
Yes.
,. DESIGNATED ORIGINAL b.
do.
Not all systems.
Certified By c.
No.
Not all systems.
D S O 'l d.
No.
110t all systems.
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4.
As to our answers in response to Interrogatories 3(b)-(d), Regulatory Guide 1.47, " Bypassed and Inoperable Status Indication for Nuclear Power Plant Safety Systems" delineates IIRC guidance with respect to providing indications of a bypassed or disabled condition of a safety system.
Section C, Regulatory Position, of this Regulatory Guide recommends automatic indication at the system level of the bypass or deliberately induced inoperability of the protection system and the systems actuated or controlled by the protection system under certain limited, specified conditions. These limited, speci#ied conditions are delineated in the Regulatory Guide.
The protection systen encompasses those electric and mechanical devices and circuitry which actuate reactor trip and that in the event of a serious accident, actuate engineered safeguards such as containment isolation, core spray, safety injection, pressure reduction, and air cleaning.
Bypassed and inoperable status indication is primarily recommended for systems which may be required in the first minutes following an accident dnd which, therefore, must be initated automatically. Guidelines do not require automatic bypassed and inoperable status indication for systems such as those required for safe shutdown where there is sufficient time for the operator to manually place systems in service.
It should also be noted that the guidelines of Regulatory Guide 1.47 are f.ot mandatory but, rather, are one acceptable method for implementing
l
. tne requirements of Section A.13 of IEEE Standard 279-1971 " Criteria for Protection Systems for fiuclear Power Generating Stations" and Criterion XIV of Appendix B to 10 C.F.R. Part 50.
7.
The approach taken was to improve the design of specific instruments and controls following the accident at THI-2 by delineating design criteria for these instruments and controls rather than to change the safety classification of th instruments and controls. This is explained in b) below.
a) liot applicable.
b) The accident at TMI-21as resulted in the issuance of Regulatory Guide 1.97, Revision 2, December 1780, " Instrumentation for Light-Water-Cooled liuclear Power Plants to Assess Piant and Environs i
Conditions during and following an Accident"; and liUREG-0737, "Clari-fication of TM1 Action Plan Requirements".
Regulatory Guide 1.97, Revision 2 lists the minimum number of variables for whicn control room monitoring instrumentation is to be provided for use by operating personnel during and fol rowing an accident. Specific nesign criteria for the monitoring instrumentation is delineated.
Revision 2 of Replatory Guide 1.97 was prepared after the accident at THI-2 and contains instrumentation requirements i
based on lessons learned from the accident.
i l
The approach was to delineate design criteria in Regulatory Guide 1.97 for instrumentation used in monitccing variables following an
. accident rather than to specify a safety classification for each instrument channel.. The design criteria are based on the specific purpose of providing information on a particular variable as well as on the importance of the information on a variable during the post-accident sequence.
NUREG-0737 gives specific additional design guidance for the following instrumentation and control systems:
1.
Iten II.D.3 - Safety Relief Valve Position Indication 2.
Item II.F.2 - Inadequate Core Cooling 3.
Item II.K.3.18 - Aytomatic Depressurization System Logic Diversity 4.
Item II.K.3.21 - Restart of Core Spray and Low Pressure Coolant Injection 6.
Item II.K.3.22 - Reactor Core Isolation Cooling Switchover Following tne accident at Three Mile Island, Unit 2, the f4RC Staff developed an Action Plan !1UREG-0660 (TMI Action Plan) to provide a comprehensive and integrated plan to improve safety. at power reactors.
Specific items from NUREG-0660 were approved by the Commission for implementation at reactors.
NUREG-0737 compromises a single document which delineates the design criteria for each item to be implemented.
Design criteria are delineated for each item rather than specifying a safety classification.
f
, i a
c) No plans exist at this time to change the safety classification of any instruments and control systems at Shoreham.
'espectfully submitted, Mi Bernard M. Bordenick Counsel for NRC Staff l
Dated at Bethesda, liaryland i
this 18th day of September,1981.
l l
UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION BEFORE THE ATOMIC SAFETY AND LICENSING BOARD In the flatter of
)
)
LUl4G ISLAllu LIGHTIliG COMPANY Docket No. 50-322 (Shoreham liuclear Power Station,
)
Unit 1)
)
CERTIFICATE OF GERVICE I hereby certify that copies of NRC STAFF'S ADDITIONAL ANSWERS TO "SUC'S FIRST SET OF INTERROGATORId5 AND REQUESTS FOR PRODUCTION OF 00 Cut 1ENTS * * * *" in the above-captioned proceeding have been served on the following by deposit in the United States nail, first class or, as indicated by an asterisk, through deposit in the Nuclear Regulatory Comnission's internal mail system, this 18th day of Septe-ber,1981.
Louis J. Carter Ralph Shapiro, Esq.
Admir4*.rative Judge Camer and Shapiro 23 1,iltshire Road tio. 9 East 40th Street Philadelphia, PA 19151 New York, NY 10016 Dr. Oscar H. Paris
- Administrative Judge Howard L. Blau, Esq.
Atomic Safety and Licensing Board 217 Newbridge Road U.S. Nuclear Regulatory Comission Hicksville, NY 11801 Washington, DC 20555 Mr. Frederick J. Shon,*
W. Taylor Reveley III, Esq.
Adu.nistrative Judge Hunton & Williams Atomic Safety and Licensing Board P.O. Box 1535 U.S. Nuclear Regulatory Conmission Richmond, VA 23212 Wasnington, DC 20555 Jeffrey Cohen, Esq.
Edward M. Barrett, Esq.
Deputy Commissioner and Counsel General Counsel New York State Energy Office Long Island Lighting Company Agency Building 2 250 Old County Road Empire State Plaza Hineola, NY 11501 Albany, NY 12223 Jeffrey L. Futter, Esq.
Long Island Lighting Company 250 Uld County Road flineola, NY 11501
Stephen B. Lathom, Esq.
Mr. Brian McCaffrey Twomey, Latham & Schmitt Shoreham Nuclear Power Station Attorneys at Law P.O. Box 618 P.O. Box 398 florth Country Road 33 West Second Street Wading River,fiY 11792 Riverhead, NY 11901 MHB Technical Associates Energy Research Group, Inc.
1723 Hamilton Avenue 400-1 Totten Pond Road Su.ite K Waltham, IM 02154 San Jose, CA-95125 Joel Blau, Esq.
Hon. Peter Cohalan New York Public Service Comission Suffolk County Executive The Governor llelson A. Rockefeller County Executive / Legislative Bldg.
Building Veterari's flemorial Highway Empire State Plaza Hauppauge,fiY 11788 Albany. NY 12223 Ezra I. dialik, Esq.
David H. Gilmartin, Esq.
Assistant Attorney General Suffolk County Attorney General Environmental Protection Bureau County Executive / Legislative Bldg.
New York State Department of Law Veteran's Memorial Highway 2 World Trade Center Hauppauge,fiY 11788 flew York,11Y 10047 Atomic Safety and Licensing Atomic Safety and Licensing Board Panel
- Appeal Board
- U.S. Nuclear Regulatory Comission U.S. liuclear Regulatory Commission Washington, DC 20555 Washington, DC 20555 Docketing and Service Section*
Office of the Secretary U.S. leuclear Regulatory Comission Washington, DC 20555 M
Bernard M. Borde6ick Counsel for NRC Staff