ML20028F020
| ML20028F020 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 01/24/1983 |
| From: | Schwencer A Office of Nuclear Reactor Regulation |
| To: | Pollock M LONG ISLAND LIGHTING CO. |
| References | |
| NUDOCS 8301280427 | |
| Download: ML20028F020 (5) | |
Text
DISTRIBUTIONY JAN 2 4 1983
{NRC'PDR~~""'nscaet riie /g Local PDR NSIC l
iDecket No'.:j322.$
~
~
LB#2 File RCaruso EHylton ifr..t. S. Pollock Region I i
Vice President - Nuclear ELJordan, DEQA:IE Long Island Lighting Company JMTaylor, DRP:IE 175 Ea t Old Country Road ACRS (16) s Hicksville, New York 11801 Repka, OELD
Dear Mr. Pollock:
Subject:
Request for Additional Information Regarding High Energy Line Br aks e
The staff is continuing its evaluation of your November 8,1982, submittal (SNRC-786) regarding SER open item #42 - Effects of High Energy Line Breaks on Control Systems for the Shoreham Nuclear Power Station.
In order to complete that review, we need your response to the questions in the encbsure to this letter within 30 days of your receipt of this letter.
If you have any questions please. contact Ralph Ca.ruso, the licensing project manager, (301) 492-9793.
Sincerely, o
e A. Schwenc r, Chief Licenting Branch No. 2 Divhba of Licensing
Enclosure:
As stated cc: See next page m
8301200427 830124 PDR ADOCK 05000322 E
~-
.D. L. LB..#2../..P..M..,,.D,l.k..,
,p....,
omce) sunure)
.R.Q.,
'... 9,;.pt....
.A.S.c..h,.w..e..n..c..e..r.,
1.../..
1
.../.,,,,,8,,3,,,,,,,,,,
,,,,,,,,,,,,,,_,__,i,1, DATE )
unc ronu sis om ancu oua OFFICIAL RECORD COPY usom su-an*o
Shoreham Mr. M. S. Pollock Vice President - Nuclear Long Island Lighting Company 175 East Old Country Road Hicksville, New Yo* 11801 cc:
Howard L. Blau, Esquire MiB Technical Associates Blau and Cohn, PC.
1723 Hamilton Avenue, Suite K 217 Newbridge Road San Jose, California 95125 Hicksville, New York 11801 Stephen Latham, Esquire Mr. Jay Dunkleberger Twomey, Latham & Shea New Yod State Energy Office Post Office Box 398 Agency Building 2 33 West Second Street Empire State Plaza Riverhead, New Yod 11901 Albany, New York 12223 Matthew J. Kelly, Esquire Energy Research Group, Inc.
Staff Counsel 400-1 Totten Pond Road New York State Public Service Commission Waltham, Massachusetts 02154 Three Rockefeller Plaza Albany, New York 12223 Mr. Jeff Smith Shoreham Nuclear Power Station Ezra I. Bialik, Esquire Post Office Box 618 Assistant Attorney General Wading River, New Yo* 11792 Environmental Protection Bureau New Yod State Department of Law W. Taylor Reveley, III, Esquire 2 World Trade Center Hunton & Williams New Yo d, New Yod 10047 Post Office Box 1535 Richmond, Virginia 23212 Resident, Inspector Shoreham NPS, U.S. NRC Ralph Shapiro, Esquire Post Office Box B Rocky Point, New Yod 11778 Cammer & Shapiro 9 East 40th Street New Yod, New Yod 10016 Herbert H. Brown, Esquire Kidpatrick, Lockhart, Hill, Mr. Brian McCaffrey Christopher & Phillips Long Island Lighting Company 1900 M Street, N.W.
175 E. Old Ccuntry Road Washington, D.C.
20036 Hicksville, New Yod 11801 Lawrence Coe Lanpher, Esquire Honorable Peter Cohalan Kidpatrick, Lockhart, Hill, Suffolk County Executive Christopher & Phillips County Executive / Legislative Bldg.
1900 M Street, N.W.
Veteran's Memorial Highway Washington, D.C.
20036 Hauppauge, New York 11788 Karla J. Letsche, Esquire David Gilmartin, Esquire Kidpatrick, Lockhart, Hill, Suffolk County Attorney Christopher & Phillips County Executive / Legislative Bldg.
1900 M Street, N.W.
l Veteran's Memorial Highway Washington, D.C.
20036 Hauppauge, New York 11788 y _., _ _;,
.m_x,......,..
O 2-Shoreham Lawrence Brenner, Esq.
Administrative Judge Atomic Safety & Licensing Board U. S. Nuclear Regulatcry Commission Washington, D. C.
20555 Dr. James L. Carpenter.
Administrative Judge Atomic Safety & Licensing Board U. S. Nuclear Regulatory Coimmission Washington, D. C.
20555
!:r. Peter A. Morris Administrative Judge Atomic Safety & Licensing Board U. S. Nuclear Regulatory Commission Washington, D. C.
20555 O
9 l
l l
-m m....._
. -,. _. _, =.
.y.,
c.
-ADBITIONALMORMATION REQUIRED FOR STAFF EVALUATION OF THE EFFECTS OF HIGH. ENERGY LINE BREAKS ON CONTROL SYSTEMSi If Control Systems are exposed to the e'nvironment kesulting from the rupture of reactor coolant lines, steam lines or feedwater lines, the control system may malfunction in a manner which would cause consequences to be more severe than assumed in safety analyses.
The staff requested a review to determine what, if any, design' changes or operator actions would be necessary to assure high energy line breaks would not cause control system malfunctions and complicate the event beyond the FSAR analysis.
i By ' letter dated November 8,1984 (J. L. Smith to Harold R. Denton) the' Shoreham applicant submitted information summarizing the results of a designreview,evaluationandplantwa[kdownaddressingthisconcern.
i Our review of the effects of high energy line breaks on control systems cannot be fully completed until additional information as discussed below is provided by the applicant.
(1) the results of analysis of the effects of humidity, pressure, and temperature, in addition to the effects of-pipe whip and jet impingement, on the operability of control systems.
(2) Clarification of the single failure assumption used in the study. The intent of this concern was to Mye the applicant review the possibility of consequential contr01 system failures which exacerbate the effects of high energy line breaks and l
l l
t
s._
4 a
take action where needed, to assure that the postulated events would be adequately mitigated.
In conjunction with the above (high energy line break and consequential control system fail-ures), an additional single failure within the systems used to mitigate this event should be considered. Thisass,u$ption concerning the additional single failure is standard regulatory practice and is also discussed in IEEE 279-1979, "IEEE Standard Application of the Single Failure Criterion to Nuclear Power Generating Station Class 1E Systems." This standard basically states that adequate protective action must be provided to accomplish a protective function in the presence of any sir.gle detectable failure concurrent with all identifiable but non-detectable failures, all failures occurring as a result of the single failure, and all failures which would be caused by the design basis event requiring the protective function.
l 4
e
- e e
{
. -...,..,,... ~. -. -.
,-