ML19329A406
| ML19329A406 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 10/19/1977 |
| From: | Butler W Office of Nuclear Reactor Regulation |
| To: | Goller K Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19329A407 | List: |
| References | |
| NUDOCS 8001030975 | |
| Download: ML19329A406 (2) | |
Text
,.
OCT.1 9197I MEMORANDUM FOR:
K. R. Goller, Assistant Director for Operating Reactors. Division of Operating Reactors l
L FROM:
' W. R. Butler, Chief. Plant Systems Branch Division cf Operating Reactors i
I
SUBJECT:
SAFETY EVALUATION ON PROPOSED CHANGES TO TECHNICAL SPECIFICATIONS RELATING TO THE ELECTRICAL SYSTEM FOR i
OCONEE NUCLEAR STATION (TAC 6313) i 2
Plant Name: Oconee Nuclear Station, Units 1, 2, and 3 i
License Numbers: DPR-38, 47, and 55 l
Docket Numbers: 50-269, 270, and 287 Responsible Branch: ORB-1 Project Manager:
J. Neighbors Reviewing Branch:
Plant Systems Branch Review Status:
Complete The Duke Power Company.f by letter dated September 29, 1977, i
I, submitted its proposedirevision to the Oconee Nuclear Station's Technical Specifications relating to the electric power systems.
l I
The licensee's proposed revision to the Technical Specifications i
ixlude the Limiting conditions of Operation (LCO), surveillance i
Requirements, and Bases for the electrical system. The changes requested I
were designed to:
(1) provide increased flexibility of operation and maintenance of the Deonee electrical system including the Keowee liydroelectric Station; and (2) update the specifications to be in confomance with the Comission's current requirements as defined in i
Regulatory Guide 1.93, " Availability of Electric Power Sources,"
l' and the Standard Technical Specifications.
We have completed our review of the Duke Power Company's submittal, and have concluded that the proposed changes to the Oconee Nuclear i
l Station's Technical Specifications are in confomance with the Commission's current requirements and are acceptable, subject to i
i the requirement that the licensee amend its proposal to include the j
following:
(1) Section 3.7.5 shall include a requirement for reporting the l
LCO (as defined in Section 3.7.6(b) of the current pecifications);
OhC#$ f I
l l
orric s >
2
_ 772540322 f
.o n...s
- r
- - q. -,-
v
[
W u. a. sovanmusut paintene orricas t.,s oned i[ '
MI
' NRC PORM 31s (9 M) NRCM 0240 8001030 7 7 7 p
{
u OCT. I 913; t r
I -
(2)Iction 3.7.5 shall include prcMsions which are in conformance with Regulatory Guide 1.93, Position C-2, when the offsite power sources cannot be restored within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; and (3) Section 3.7.6 and 3.7.7 shall include a provision for hot r
restart of a reactor from a tripped condition (as defined in Section 3.7.7(c) of the current specifications).
We have had telep! vane discussions with the licensee regarding the need for revising the Oconee Technical Specifications to include the above listed items in addition to the above clited proposed changes the LCOs and surveillance requirements for the d.c. power systems.
The licensee indicated agreement with the above listed conditions and plans to submit appropriate documentation by January 1,1978 for staff evaluation. We find the licensee's time table for these changes acceptable. The details of our evaluation of the proposed changes to the Technical Specifications of September 29, 1977 and the bases for j-our conclusions are provided in the enclosed report.
(
f.
W. R. Butler, Chief L
Plant Systems Branch i
Division of Operating Reactors i
Contact:
D. Mcdonald 492-8077
Enclosure:
As stated cc w/ enclosure:
V. Stallo O. Eisenhut J. Guibert I
R. Cudlin l
W. Butler A. Schwencer D. Neighbors J. McGough D. Tondi l
j P. Atherton i
D. Mcdonald l
Section A. PSB
/
\\
i t
l l
I j
DC$/J$lB _ _Mdi N WButler M
'/
ppy3/PSB DOR /C/PSBj D
/
ome.,
)Mc h d M p
.u o...
- lb/
77 '
50// 8 77 10/N77
/h,a 4
NRC PORM 31s (9 76) NBCM 0240 t
- un s. novsammswy emanne orrecas sepe M