ML20069D770
| ML20069D770 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 06/01/1994 |
| From: | NORTHEAST NUCLEAR ENERGY CO. |
| To: | |
| Shared Package | |
| ML20069D760 | List: |
| References | |
| NUDOCS 9406060177 | |
| Download: ML20069D770 (10) | |
Text
i Docket No. 50-336 B14866 Millstone Nuclear Power Station, Unit No. 2 Request for Additional Information Regarding Proposed Revision to Technical Specifications Automatic Initiation of the Auxiliary Feedwater System Marked-u,p Pages P
June 1994 9406060177 940601 DR ADOCK 05000336 PDR
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IU LLSTO*4E - UNIT *2 3/4 3-15 AmdQ 4, 1
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TABLE 3.3-4 (Continued) eF 0;
ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP VALUES _
8 M
Al.LOWABLE h
FUNCTIONAL UNIT _
TRIP VALUE_
VALUES Q
5 8.
LOSS OF POWER a.
4.16 kv Emergency Bus Undervoltage I61 2912 volts
> 2877 volts (Undervoltage relays) - level one b.
4.16 kv Emergency Bus Undervoltage
> 3700 volts with
> 3663 volts with l61' (Undervoltage relays) - level two an 8.0 + 2.0 second an 8.0 + 2.0 second time deTay time deTay 9.
AUXILIARY FEE 0 WATER w
a.
Manual Hot Appilcable Not Appilcable w
b.
SteamGeneratorLevel-LowU)
> 12%
> 10%
a.
6 cy A 17 oml oew ury 4 _LLt a-41 6 j -fe,_A w d ce p
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I (becember 23,1992]
-f TABLEii.3-5(Continued)
\\
INGINEERED SAFETY FEATURES RESPONSE TIMES INITIATING SIGNAL AND FUNCTION RESPONSE TIME IN SECONDS 3.
Data'nment Pressure - Hiah a.
Safety Injection (ECCS) 1)
High Pressure Safety Injection s 25.0*/5.0**
2)
Low Pressure Safety Injection s 45.0*/5.0**
3)
Charging Pumps 135.0*/35.0**
4)
Containment Air Recirculation System 1 26.0*/15.0**
b.
Containment Isolation 5 7.5 c.
Enclosure Building Filtration System f 45.0*/45.0**
d.
Main Steam Isolation 1 6.9 e.
Feedwater Isolation 1 14 4.
Containment Pressure--Hich-Hiah i
5 35.6*II)/16.0**II) g a.
Ontainment Radiation-Hiah a.
Containment Purge Valves Isolation s Counting period plus 7.5 6.
Steam Generator Pressure-low a.
Main Steam isolation s 6.9 b.
Feedwater Isolation 5 14 7.
Refuelina Water Storaae Tank-Low a.
Containment Sump Recirculation 1 120 8.
Steam Generator level-Low a.
Auxiliary Feedwater System (M s 240*/240**(2)
TABLE NOTATION Diesel generator starting and sequence loading delays included.
Diesel generator starting and sequence loading delays ng_t included.
~
Offsite power available.
(1) Header fill time not included.
(2)
Includes 3hnute time delay.
i See1m A
(O A l M N., h, #)6 Amendment No.16' MILLSTONE - UNIT 2 3/4 3-22
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1 Docket No. 50-336 B14866 Millstone Nuclear Power Station, Unit No. 2 Request for Additional Information Regarding l
Proposed Revision to Technical Specifications 1
Automatic Initiation of the Auxiliary Feedwater System Retyped Pages June 1994 I
i 1
_.______.____________________._____.___________________.______________.______________._____._____._______b
TABLE 3.3-3 (Continued) 3?!!
ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION
~1 3
8 MINIMUM TOTAL NO.
CHANNELS CHANNELS APPLICABLE F
FUNCTIONAL UNIT OF CHANNELS TO TRIP OPERABLE MODES ACTION X
9.
m a.
Manual I/ pump 1/ pump 1/ pump 1, 2, 3 1
b.
2 3
1, 2, 3 2"'
Level - Low i
I iE w
4 I
I E
E Ea
.?
D (1) For Cycle 12 'only, OPERABILITY of the auxiliary feedwater (AFW) automatic initiation logic will rely on operator action to ensure successful initiation of AFW. Prior to startup for Cycle 13, modifications to D. -
the automatic initiation logic for AFW will be implemented to eliminate the reliance on operator action.
l
TABLE 3.3-4 (Continued) 2x
}
- 3 ENGINEERED SAFETY FEATURE ACTUATION SYSTEM INSTRUMENTATION TRIP VALUES I
o ALLOWABLE FUNCTIONAL UNIT TRIP SETPOINT VALUES C
h 8.
LOSS OF POWER E
a.
4.16 kv Emergency Bus Undervoltage l
(Undervoltage relays) - level one 1 2912 volts 2 2877 volts b.
4.16 kv Emergency Bus Undervoltage 1 3700 volts with 2 3663 volts with (Undervoltage relays) - level two an 8.0 2.0 second an 8.0 2.0 second time delay time delay 9.
AUXILIARY FFEDWATER a.
Manual Not Applicable Not Applicable b.
Steam Generator Level - Low"'
2 12%
2 10%
4' E
l l
F i
$n 5
I D.
ww 1
??
(1) For Cycle 12 only, OPERABILITY of the auxiliary feedwater (AFW) automatic initiation logic will rely on l
operator action to ensure successful initiation of AFW. Prior to startup for Cycle 13, modifications to Nw??
the automatic initiation logic for AFW will be implemented to eliminate the reliance on operator action.
L_______________._________.__
1 l
l l
l TABLE 3.3-5 (Continued)
ENGINEERED SAFETY FEATURES RESPONSE TIMES INITIATING SIGNAL AND FUNCTION RESPONSE TIME IN SECONDS 3.
Containment Pressure - Hiah a.
Safety Injection (ECCS) i
}
1)
High Pressure Safety Injection 1 25.0*/5.0**
2)
Low Pressure Safety Injection s 45.0*/5.0**
3 1
3)
Charging Pumps s 35.0*/35.0**
l 4)
Containment Air Recirculation System 1 26.0*/15.0**
j b.
Containment Isolation s 7.5 c.
Enclosure Building Filtration System 1 45.0*/45.0**
d.
Main Steam Isolation s 6.9 e.
Feedwater Isolation s 14 4.
Containment Pressure--Hiah-Hiah a.
Containment Spray 5 3 5. 6*"'/16. 0**'"
5.
Containment Radiation-Hiah a.
Containment Purge Valves Isolation 1 Counting period plus 7.5 6.
Steam Generator Pressure-Low a.
Main Steam Isolation s 6.9 b.
Feedwater Isolation s 14 7.
Refuelina Water Storace Tank-low a.
Containment Sump Recirculation 1 120 8.
Steam Generator level-Low a.
Auxiliary Feedwater System'88
< 240*/240**t2 l
Millstone Unit No. 2 3/43-22 Amendment No. J 7, 97, otre 91,197,
l TABLE 3.3-5 (Continued)
ENGINEERED SAFETY FEATURES RESPONSE TIMES TABLE NOTATION j
Diesel generator starting and sequence loading delays included.
Diesel generator starting and sequence loading delays np1 included.
Offsite power available.
(1) br.ader fill time not included.
(2) Includes 3-minute time delay.
(3) For Cycle 12 only, OPERABILITY of the auxiliary feedwater (AFW) automatic initiation logic will rely on operator action to ensure successful initiation of AFW.
Prior to startup for Cycle 13, modifications to the automatic initiation logic for AFW will be implemented to eliminate the reliance on operator action.
Millstone Unit No. 2 3/4 3-22a Amendment No. J. 7 57, osa 91,J9f,