ML20141K338
| ML20141K338 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 05/23/1997 |
| From: | COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20141K336 | List: |
| References | |
| NUDOCS 9705290017 | |
| Download: ML20141K338 (4) | |
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EMERGENCY CORE COOLING SYSTEMS
' RVEILLANCE REQUIREMENTS SU 4.5.2 Each ECCS subsystem shall be demonstrated OPERABLE:
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 verifying that the following valves a.
are in the indicated positions with power to the valve operators removed:
Valve Number Valve Function Valve Position
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MOV SI8806 Suction to the SI Open Puers M0V SI8835 SI Pump Discharge Open*
To RCS Cold Legs MOV SI8813 SI Pump Recirculation Open To The RWST l
MOV SIB 809A RHR Pump Discharta to Open*
RCS Cold Legs
(
MOV SIB 809B RHR Pump Discharge to open*
RCS Cold Legs MOV SIB 840 RHR Pump Discharge to Closed i
RCS Hot Legs MOV SIB 802A SI Pump Discharge to Closed RCS Hot Legs MOV SI8802B SI Pump Discha p g
"C' "** '***f y5' 5+ die +o idle. R H a nd 5 he l
b.
At least once per 31 ys y:
em on/ )
M lutside of con aineen, andsingsanddischargepipinghighpoin[ 4 l
l) e Venting the pump
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2)
Verifying that each valve (manual, power-operated, or automatic) in the flow path that is not locked, sealed, or therwise secured in position, is in its correct positio appl d / E S
By a visual inspection which verifies that no loose debris (rN,D c.
trash, clothing, etc.) is present in the containment which cou d be transported to the containment sump and cause restriction of the pump suctions during LOCA conditions.
This visual inspection shall e
rfo W 6 onkallm syskm is Alld wdr b O Veri in
& disc Aa rg k p>r-h,on euminir of s idio e 4v W chscharge cuck. wive d h s h p n +m p u.
N of &
Cap /j/bt6/e +not haul 6 a+ the ppgeshw por m
oF t & i~.E i,l.2 ss oy5 valve o e v3 sh1 on/ ),
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" Valves say be 'rft e
or testing pu n to ec cation 4.4.6.2.2.
I BYRON - UNITS 1 & 2 3/4 5-4 AMENDMENT N05.me and e 9705290017 970523 i.
PDR ADOCK 05000454 P
PDR m
EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REQUIREMENTS 4.5.2 Each ECCS subsystem shall be demonstrated OPERABLE:
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 verifying that the following valves a.
are in the indicated positions with power to the valve operators removed:
Valve ' Number Valve Function Valve Position MOV SIB 806 Suction to the SI Open Pumps MOV SIB 835 SI Pump Discharge Open*
To RCS Cold Legs MOV SIB 813 SI Pump Recirculation Open To The RWST MOV SIB 809A RHR Pump Discharge to Open*
RCS Cold Legs MOV SIB 8098 RHR Pump Discharge to Open*
RCS Cold Legs MOV SI8840 RHR Pump Discharge to Closed RCS Hot Legs MOV SIB 802A SI Pump Discharge to Closed RCS Hot legs MOV SI8802B SI Pump Discharge to Closed RCS Hot eq applua ble % [yle. RH ""d g /
~ ~'J b.
At least once per 31 da s by:
5 *
- 00lV 4 Venting the pump MMoutside of containiten, andsings and discharge piping high point CC 2)
Verifying that each valve (manual, power-operated, r automatic) in the flow path that is not locked, sealed, or rwise secured in position, is in its correct positio pPlgpl o((
By a visual inspection which verifies that no loose debris (rags, c.
trash, clothing, etc.) is present in the containment which could be transported to the containment sump and cause restriction of the
)
pump suctions during LOCA conditions.
This visual inspection shall 3her jngNS S h *: i3 k<.ll 6 u)d k f h e dischtr 0"
wras'oniai$ nainidy +v A d'sa$ & P um e a74 a
W"L of +he c v p% s un r Prhm of +Q if"]'
valdt a nd +kt 5 h 5+rea m of i
I geot Asnd 13 at +P i a sr a c nnja he 9ppha ue +> wsyskm ony),
" Valves may be rea'.igned for testing pursuant to Specification 4.4.6.2.2.
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i BRAIDWOOD - UNITS 1 & 2 3/4 5-4 AMENDMENT NOS. % and d l
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ACKNOWLEDGEMENT TIIAT ADOPTION OF LINE-ITEM IMPROVEMENT OR TIIE IMPROVED TECIINICAL SPECIFICATIONS WOULD NOT HAVE OBVIATED TIIE NEED FOR TIIE NOED REQUEST l
Comed submitted an application for conversion to the Improved Technical Specifications (ITS) in a letter from G. Stanley and K. Graesser to the NRC, dated l
Decernber 13,1996. Surveillance Requirement (SR) 3.5.2.3 in the ITS submittal requires verification that the ECCS piping is full of water. The Bases for this SR state that this verification is accomplished by venting non-operating ECCS pump casings and the discharge piping high points outside containment. No clarification is given for the non-operating CV pump and CV discharge piping high points while at power. Therefore, implementation of1TS would not have prevented the need for this Enforcement Discretion request.
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12.
SUPPORTING INFORMATION No additional information is necessary to support this request. However, reference is made to the following documents:
Letter from S.C. Hunsader (Comed) to T.E. Murley (NRC) dated March 17,1989 transmitting an application for amendment regarding ECCS venting Letter from S.C. Hunsader (Comed) to T.E. Murley (NRC) dated August 25,1989 transmitting a supplement to an application for amendment regarding ECCS venting Letter from S.C. Hunsader (Comed) to T.E. Murley (NRC) dated March 12, 7990 transmitting a supplement to an application for amendment regarding ECCS venting l
Letter from S.C. Hunsader (Comed) to T.E. Murley (NRC) dated.Tane 10, 1991 transmitting a supplement to an application for amendment regarding L
ECCS venting Letter from A.H. Hsia (NRC) to T.J. Kovach (Comed) dated June 4 1992 l
transmitting the Environmental Assessment and Finding of No Significant Impact (TAC NOS. M72872, M72873, M72874, and M72875)
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