ML20113H621
| ML20113H621 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/31/1992 |
| From: | GEORGIA POWER CO. |
| To: | |
| Shared Package | |
| ML20113H620 | List: |
| References | |
| NUDOCS 9208050100 | |
| Download: ML20113H621 (3) | |
Text
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ENCLOSURE 3 o
i VOGTLE ELECTRIC GENERATING PLANT
~
REQUEST TO REVISE TECIINICAL SPECIFICATIONS ADDITION OF FEEDWATER ISOLATION SYSTEMS IlifSTRUCTIONS FOR INCORPORATI,Qll The proposed change to the VEGP Technical Specifications would be incorporated ao follows.
Remove Pace Insert Paq.c 3/4 7-9*.and 3/4 7-10*
3/4 7-9* and 3/4 7-9a 3/4 7-10*
D 3/4 7-2a
- Overleaf pago containing no change.
E3-1 9208050100 920731-PDR ADOCK 05000424 P-PDR
3 PJ1d!T-_ SYSTEMS f
MAIN PEEDWATER ISOLATI0d SYSTEMS i
LTJ1 TING CONDITION FOR OPERATION 3.7.1.6 Each main feedwater line shall have two OPERABLE
- isolation systems consisting of a main feedwater isolation valvo l
(ilV-5227, 5228, 5229 and 5230) (MPIV) with its associated bypass
^
feedwater Isolation valve (llV-15196,15197,15198 and 15199) (BPIV) aiid a main feedwater regulating valve (FV-0510, 0520, 0530 and 0540) (MPRV) with its associated bypass feedwater regulating valve (LV-5242, 5243, 5244 and 5245) (BFRV).
APPLICABILITY:
MODES 1 AND 2.
ACTION:
a.
With one it,olation system inoperable in one or more feedwater lines, operation may continue provided both isolation systems are restored to OPERABLE statuu in each feedwater line within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
Otherwise be in IIOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, and in llOT SilUTDOWN -
within the following 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />, b.
With no fsolation system OPERABLE in any one feedwater line, restore at least one isolation system in each feedwater-line to OPERABLE status within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> or be in
!!OT SliUTDOWN within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.
SURVEILLANCE REOUIREMENTS 4.7.1.6 Each MFIV, BFIV, MFRV and BFRV shall be demonstrated OPERABLE by ' verifying full closure within 5 seconds when tested pursuant to Specification 4.0.5.
The provisions of 4.0.4 are not applicable for entry into MODE 2.
- An - OPERABLE main foodwater isolation system may consist of
-inoperable valves - provided the -inoperable valves - are maintained -
closed.
VOGTLE. UNITS-1 0 2 3/4 7-9a
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4 8
S a
PLANT __ SYSTEMS BASE 9 3/4.7.1.6 Main Foodwater Isolation Systems Isolation of the main feedwater system is provided when required, to mitigate the-consequences of a steam line break, feedwater line
- break, feedwater controller malfunction, steam generator tube rupture or small break loss of coolant accident.
Redundant isolation capability is provided by two isolation systems
-consisting of the main feodwater isolation valve (MFIV) and its associated bypass valve (DFIV) and the main feedwater regulating valve (HFRV) and.its associated bypass valve (BFRV).
The safety function of these valves is fulfilled when closed.
Therefore, a feedwater isolation syst9m may be considered OPERABLE if its respective valves are OPERABLE or if they are maintained in the closed position.
I L
i VOGTLN. UNITS-1 & 2 B 3/4 7-2a P
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