ML20057C728
| ML20057C728 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 09/23/1993 |
| From: | ENTERGY OPERATIONS, INC. |
| To: | |
| Shared Package | |
| ML20057C723 | List: |
| References | |
| GNRO-93-00118, GNRO-93-118, NUDOCS 9309290308 | |
| Download: ML20057C728 (4) | |
Text
.
- to GNRO-93/00118 Page 1 of 2 i
PROPOSED CHANGE TO THE OPERATING LICENSE SURVElLLANCE REQUIREMENT 4.4.1.2.2, JET PUMP AP MEASUREMENT i
BELOW 25% POWER (GGNS PCOL 93/12) i i
l ph9290308930923 7}
ADDCK 05000426. {#
p PDR g
a REACTOR COOLANT SYSTEM to GNRO-93/00118 Page 2 of 2 JET PUMP 5 LIMITING CONDITION FOR OPERATION 3.4.1.2 All jet pumps shall be OPERABLE.
APPLICABILITY:
OPERATIONAL CONDITIONS 1 and 2.
ACTION:
I With one or more jet pumps inoperable, be in at least HOT SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
i I
l SURVEILLANCE REQUIREMENTS 4.4.1.2.1 Each of the above required jet pumps in an operating loop shall be demonstrated OPERABLE with THERMAL POWER in excess of 25% of RATED THERMAL POWER and at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by detemining recirculation loop flow, total core flow and diffuser-to-lower plenum differential pressure for each jet pump and verifying that no two of the following conditions occur:
I The indicated recirculation loop flow differs by more than 10% from a.
the established flow control valve position-loop flow characteristics.
b.
The indicated total core flow differs by more than 10% from the established total core flow value derived from recirculation loop flow measurements.
c.
The indicated diffuser-to-lower plenum differential pressure of any individual jet pump differs from established piatterns by more than 10%.
=-
~ - -.
4.4.1.2.2 The provisions of Specification 4.0.4 are not applicable provided the diffuser-to-lower plenum differential pressures of the individual jet pumps are determined to be within 50%* of the loop average within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> after entering OPERATIONAL CONDITION 2 and at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter.
pdd
- -D 's=:
" Lc pro v;cisM ob S 'O AI** Y' 'Y "' **S "ffldfuIAI' f'** d'0 5 '
T P
de< e,sorveutvee is fe'"* d wi Ak 24 hou's resdoe owc' e
t veeeds z5% cm il hours dit' Oe
- ssocI*ded tecirculdin /oef p ope e-
" Initial value.
Final value to be determined during startup test program.
Any required changes to the value shall be submitted to the Commission within 90 days of test completion.
u s
GRAND GULF-UNIT 1 3/4 4-2 Amendment No. Mr, _
l r
(-
, '. to GNRO-93/00118 I
Page 1 of 2 l
l l
PROPOSED TECHNICAL SPECIFICATIONS PAGES l
SURVEILLANCE REQUIREMENT 4.4.1.2.2, JET PUMP AP MEASUREMENT BELOW 25% POWER 1
(Information only)
\\
l I
P i
l l
r i
f i
r f
8
, to GNRO-93/00118 Page 2 of 2 REACTOR COOLANT SYSTEM JET PUMPS LIMITING CONDITION FOR OPERATION i
3.4.1.2 All jet pumps shall be OPERABLE.
APPLICABILITY: OPERATIONAL CONDITIONS 1 and 2.
ACTION:
With one or more jet pumps inoperable, be in at least HOT SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
SURVEILLANCE REQUIREMENTS r
4.4.1.2.1 Each of the above required jet pumps in an operating loop shall be demonstrated OPERABLE with THERMAL POWER in excess of 25% of RATED THERMAL POWER and at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> by determining recirculation loop flow, total core flow and diffuser-to-lower plenum differential pressure for each jet pump and verifying that no two of the following conditions occur:
a.
The indicated recirculation loop flow differs by more than 10% from the established flow control valve position-loop flow characteristics.
b.
The indicated total core flow differs by more than 10% from the established total core flow value derived from recirculation loop flow measurements.
{
c.
The indicated diffuser-to-lower plenum differential pressure of any individual jet pump differs from established patterns by more than 10%.
The provisions of Specification 4.0.4 are not applicable provided the above l
surveillance is performed within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after reactor power exceeds 25% or 4 l
hours after the associated recirculation loop is in operation.
l l
t GRAND GULF-UNIT 1 3/4 4-2 Amendment No. 16, i