ML20138D053
| ML20138D053 | |
| Person / Time | |
|---|---|
| Site: | McGuire, Mcguire  |
| Issue date: | 10/14/1985 |
| From: | DUKE POWER CO. |
| To: | |
| Shared Package | |
| ML20138D043 | List: |
| References | |
| NUDOCS 8510230157 | |
| Download: ML20138D053 (3) | |
Text
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Duke Power Campany McGuirs Nuclear St? tion Supplement to Proposed Technical Specification Revision 8510230157 4
PDR AEM h
2 P
3/4.5 EMERGENCY CORE COOLING SYSTEMS
',, 3/4.5.1 ACCUMULATORS COLO LEG INJECTION LIMITING CONDITION FOR OPERATION 3.5.1.1 Each cold leg injection accumulator shall be OPERABLE w The isolation valve open, a.
g>, L u,>r m nwy
- b.
- A contained borated water volume of between
- z. w.ra u~ o a t ~cs e ny d 'e.., weJ oe,w JL w.Ju v,In..& % w. gallons, A boron concentration of between 1900 and 2100 ppm c.
~ s e,c,
""""7""'
p oru vuo oner,*ue>:
d.13 A nitrogen cover pressure of between 430 and 484 psi
- t. y u um
.t o.c es i a c.4.
...c - pr us u
, ar.d-A water level and pressure channel OPERABLE.
t.
.+ x N een rer
- J 639p n.
APPLICABILITY: MODES 1, 2, and 3*.
_ACTICN:
With one cold leg injection accumulator inoperable a.
(s.
OPERABLE status within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in
, except as a result the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in HOT SHUTDOWN within the n
g 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
b.
With one cold leg injection accumulator inoperable due to t isolation valve being closed, either immediately open the i e
tion valve or be in at least HOT STANDBY with sola-SHUTCOWN within the following 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
n HOT S g jlLANCE REOUIREMENTS 4.5.1.1.1 Each cold leg injection accumulator shall be demonstr At least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by:
a.
1) cover pressure in the tanks, andVerifying the conta 2)
Verifying that each cold leg injection accumulator isolati valve is open.
L
- Pressurizer pressure above 1000 psig.
McGUIRE - UNITS 1 and 2 3/4 5-1 Amendment No.. (Unit 1)
Amendment No." (Unit 2)
Analysis of Significant Hazards Consideration As required by 10.CFR 50.91, this analysis is provided concerning whether the proposed changes to the technical specification involve significant hazards i
considerations, as oefined by 10 CFR 50.92.
The probability of an accident previously evaluated is unaffected by the proposed change because the change simply makes the af fectedTechnical Specification conform to the analysis assumption. Likewise, the consequences of an accident previously evaluated are not increased because all applicable acceptance criteria remain satisfied.
The proposed change does not create the possibility of a new or different kind of accident from any previously analyzed. The sole purpose of the change is to make Technical Specifications consistent with the Safety Analysis.
Finally, the proposed amendments do not involve a significant reduction in a margin of safety. The purpose of the change is to make Technical Specifications consistent with the Safety Analysis. The results.of the Safety Analysis are still within_the applicable acceptance criteria, i
In summation, it has been determined that the proposed deletion of the UH1 system would not:
1.
Involve a significant increase in the probability or consequences of an accident previously evaluated; or l
2.
Create the possibility of a new or different kind of accident from any accident previously evaluated; or 3.
Involve a significant reduction in a margin of safety.
Based upon the preceding analysis, Duke Power Company concludes that the proposed amendments do not involve a significant hazards consideration.
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