ML20073F688
| ML20073F688 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 04/24/1991 |
| From: | WISCONSIN ELECTRIC POWER CO. |
| To: | |
| Shared Package | |
| ML20073F685 | List: |
| References | |
| NUDOCS 9105030002 | |
| Download: ML20073F688 (2) | |
Text
_ _ _.
3.!13 Aiminimumg13] A minimum of 10,000 gallons of water per operating unit in the condensate storage tanks and an unlimited water supply from the lake via either leg i
of the plant Service Water System.
4.
System piping and valves required to function during accident conditions directly associated with the above components operable.
P B.
The iodine-131 activity on the secondary side of the steam generator shall not exceed 1.2 pCi/cc.
C.
During power _ operation the requirements of 15.3.4. A.2.a and b may be modified to allow the following components to be inoperable for a specified time.
If the system is not restored to meet the requiremen.ts of-15.3.4.A.2.a and b within the time period specified, the'specified action-must be taken.
If. the requirements of 15.3.4. A.2.a' and b are not satisfied within an additional 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, the appropriate reactor (s) shall be cooled down to less than 350 F.
1.
Two Unit Operation - One of the four operable auxiliary feedwater pumps may be out-of-service for the below specified times.
A turbine driven auxiliary feedwater pump may be out of service.for up to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />..lf the turbine driven auxiliary feedwater pump cannot be restored to service within the 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> time period the associated reactor shall be inL hot shutdown within the next 12 h'ours.
A' motor driven auxiliary feedwater pump-may be' out of service for~up. to
- 7. days.
If the inoperable motor.: driven au'xiliary feedwater pump.
cannot be restored to service within the 7 day time period.both of L
the reactors shall be in-hot shutdown.within th'e next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
1 i
L 3
Unit--l.
Amendment.No. 91:
Unit 2 - Amendment No. 95-15.3.4-2'
!AprilL28, 1985 9105030002 910424
-PDR-ADOCK 05000266 P
PDR.
~..
_, _ -., _. i.. -. _.
O 2.
Single Unit Operation - The turbine driven auxiliary feedwater pump may be out-of-service for up to 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />.
If the turbine driven
{
auxiliary feedwater pump cannot be restored to service within that 72 j
hour time period, the reactor shall be in hot shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
Either one of the two motor driven auxiliary feedwater pumps may be' out-of-service for up to 7 days.
If the motor driven auxiliary feedwater pump cannot be restored to service within that 7 day period the operating unit shall be in hot shutdown within j
the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
l Basis A reactor shutdown from power requires removal of core decay heat.
Immediate decay heat removal requirements are normally satisfied by the steam bypas: to:the-l condenser.
Therefore, core decay heat can be continuously dissipated via the
^
steam bypass to the condenser as feedwater in the steam generator is converted to-steam by heat absorption.
Normally, the capability to return feedwater flow to the steam generators is prn ided by operation of the-turbine cycle feedwater system.
.i The eight main steam safety valves have a total combined rated capability of 4
6,664,000 lbs/hr. The total full power steam flow is 6,620,000 lbs/hr, therefore.
eight (8) main steam safety valves will be able to. relieve the total full-power steam flow if necessary.
3 i
In the unlikely event of complete loss of electrical power _to the station, decay-heat removal would continue to be assured.for each unit by the availability of' either the steam-driven auxiliary feedwater pump or one of the two motor-driven auxiliary steam generator feedwater pumps, and steam discharge'to the atmosphere via the main steam safety valves or atmospheric relief valvas.' L0ne motor-driven-auxiliary feedwater pump can supply ' sufficient feedwater for.'remaval' of: decay -
heat from a unit.jMhi@iihiinOffindstE6fj$((p35M@d@@ihiliii6jj@hisihld EEB@HsMMEK6EEiMMMihMM13?fiM691s5E@ HEM 16ER 1EIENfIhNS$55Eff5E[9$$$il5E51551136NENE The minimum c= cunt of wcter in thc_ conden:ctc';teroge tenk; is the := cunt -
needed for 25 minutes Of Operction/ unit, which clicw: su f f4e4ent-t4me-fee -
_eperctor cc44en.
Unit 1 - Amendment No. 91-Unit 2:--Amendment No. 95
'15.3.4-2a
-April 28, 1985
._.