ML19322B594
| ML19322B594 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 02/17/1976 |
| From: | Purple R Office of Nuclear Reactor Regulation |
| To: | Parker W DUKE POWER CO. |
| References | |
| NUDOCS 7912040622 | |
| Download: ML19322B594 (3) | |
Text
c o
FEB 171976 i l J
l' ii q
Docket No. 50-269 Duke Power Company j
KITN: Mr. William O. Parker, Jr.
Vice President Steam Production Post Office Box 2178 422 South Church Street Charlotte, North Carolina 28242 Gentlemen:
18, 1975, you proposed a station modification By letter dated Decemberto insuro that sufficient core circulation would exis j
concentration buildup that might adversely affect long term coolingThe r
capability following a postulated LOCA. consist of a hot leg drain ne heat drop line to the sump.
We have reviewed your proposal and find it to be a satisfactory method The proposal, however, does not to achieve the desired boron dilution.
provide for positive indication that the system is in fact working when I
We believe that the reactor called upon to operate following a LOCA.
operator should have positive indication that a minimum of 40 gpm is i
actually flowing in the drain lines when the drain line valves are Without such indication, we are unable to opened following a LOCA. conclude that the system you have proposed i i
In the event you are unable to provide for this indication prior to t
your scheduled resumption of operation in Cycle 3, you are requested flow to propose a preoperational test that will demonstrate sufficient through the drain lines under post-LOCA conditions.
E
/
e.
$W 4
'Y ' g ', h.Ag ir9120.40 %
'a.
s
~ FEB 171976 I
Duke Power Company 1 i
i Please provide your intentions regarding the abcVe within 5 days of receipt of this letter.
Sincerely.
Original ugned by.
R. A. Purple aL i
Robert A. Purple, Chief Operating Reactors Branch #1 Division of Operating Rerctors
,i.,33 e
cc: See next page DISTRIBUTION Docket File E NRC PDR Local PDR ORB #1 Reading KRGoller TJCArter RAPurple SMSheppard GZEch OELD
'~
OIf,E (3)
ACRS (16)
JRBuchanan TBAbernathy DEisenhut VStello I
[
l t
8
.j
'i il i
f t
kis c.
(
_._2/17176 21// 7/76 N/%
s juc3i. u.,.m - one o........ -.-...m.....
p
. *~
'fuke lower Company February,17,'1976 cc: lir. William L. Porter Duke Power Company P.lD. Box 2178 422 South Church Street Charlotte, North Carolina 28242 Mr. Troy B. Conner
~
Conner 6 Knotts 1747 Pennsy3vania Avenue, NW Washington, D. C.
20006 Oconee Publi Library 201 South Spring Street Walhalla, South Carolina 29691 i
3
'a s
.