ML20009H448
| ML20009H448 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 08/04/1981 |
| From: | METROPOLITAN EDISON CO. |
| To: | |
| Shared Package | |
| ML20009H447 | List: |
| References | |
| NUDOCS 8108100125 | |
| Download: ML20009H448 (5) | |
Text
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23 o in TABLE 3.5-1 RR
- n u INSTRUMENTS OPERATING CONDITIONS oum o8 (A)
(B)
(C)
- 30$ -
Minimum Operable Minimum Degree Operator Action if Conditions Q &'
Functional Unit Channels of Redundancy of Column A Cannot be Met A.
Manual pushbutton 1
0 Maintain hot shutdown 2.
Power range instrument 3(a) 1(a)
Maintain hot shutdown channel 3.
Intermediate range 1
0 Maintain hot shutdown (b) instrument channels y
4.
. Source range instrument
.l' 0
Maintain hot shutdown (c) y channels 5.
Reactor coolant temperature 2
1 Maintain hot shutdown instrument channels 6.
Pressure-temperature 2
1 Maintain hot shutdown instrument channels 7.
Flux / imbalance / flow.
2 1
Maintain hot shutdown instrument channels 8.
Reactor coolant pressure a.
High reactor coolant 2
1 Maintain hot shutdown pressure instrument channels b.
Low reactor coolant 2
1' Maintain hot shutdown pressure instrunent channels
TABLE 3.5-1 -Continusd INSTRUMENTS OPERATING CONDITIONS (A)
-(B)
(C)
Minimum Operable Minimum Degree Operator Action if Conditions Functional Unit Channels of Redundancy of Column A Cannot be Met A.-
Reactor Protection System (con't.)
J9. ' Power / number of pumps 2
1 Maintain hot shutdown instrument channels
- 10. -High reactor building 2
1
. Maintain hot shutdown.
pressure channels (a) Forfchannel testing, calibration, or. maintenance, the minimum number of operable channels
.may be two and a degree of' redundancy of one for a maximum of four hours.
u (b).When.2 of 4 power range. instrument channels are greater than 10 percent full power,
.h.
hot shutdown is not required.
-10 (c) When 1 of 2 intermediate range instrument channels is greater than '10 amps, or 2 of 4 power range instrument channels are' greater than 10 percent full power, hot shutdown is not required.
B.
Other Reactor Trips 1.
. Loss of Feedwater 2(a) 1(a).
Maintain less than 7% indicated power 2.
Turbine Trip 2(b) 1(b)
Maintain less than 20% indicated power (a) Bypass of the:feedwater pump trip signal may be placed in effect when indicated reactor power is less than 7%.
The bypass will be removed when reactor power. is raised above 7%.
(b) The main turbine trip bypass may be placed in effect when indicated power is less than 20%.
.The bypass.will be removed when the reactor power is increased above 20%.
TABLE 3.5-1 Continued
-INSTRUMENTS OPERATING CONDITIONS Functional Unit.
(A)
(B)
(C)
Minimum Operable. Minimum Degree of_
Operator. Action if Conditions C.
Engineered Safety Features Analog Channels Redundancy of Column A and B Cannot be Met (a) 1.
Makeup and Purification System (high pressure injection mode) a.
Reactor Coolant Pressure 2
1 Hot Shutdown Instrument Channels b.
Reactor Building 4 psig 2
1 Hot Shutdown Instrument Channels c.- Manual Pushbutton.(b) 2 1
Ilot Shutdown u
2.-
Decay Heat System (low pressure injection mode),
a.
Reactor Coolant Pressure 2
1 Ilot Shutdown Instrument Channels b.
Reactor' Building 4 psig 2
1 Ilot Shutdown Instrument Channels c.
Reactor Coolant Pressure 1
0 Open circuit breaker D.H. Valve Interlock at MCC for Dil-V1 or Bistable-
' Dil-V2 with the affected valve in the closed position or. maintain R.C. pressure less than 350 psig.
my-
m LTABLE 3.5-1 Continued 9
INSTRUMENTS OPERATING CONDITIONS Functional' Unit (A)
(B)
(C)
Minimum Operable Minimum Degree of Operator Acti.)n if Conditions C..
Engineered Safety Features con't.
Analog Channels Redundancy of' Column A and B Cannot'be Met (a).
3.
Reactor Building Isolation
~
and Reactor Building Cooling System a.
Reactor Building 4 psig' 2
1 Hot Shutdown Instrument Channel
- b. _ Manual Pushbutton 2
1 Hot Shutdown c.
RPS Trip 2
1 Hot Shutdown d.
Reactor Building 30 psig 2
1 Hot Shutdown Y~
RCS Pressure less than'1600 psig' 2 l'
Hot Shutdown e.
g.
4.
Reactor Building-Spray System a.
Reactor. Building 30 2(d) 1 Hot Shutdown psig Instrument Channel b.
Spray Pump Manual Switches (c) 2 1
Hot Shutdown 5.
.4.16KV ES Bus Undervoltage Relays a.
Degraded Grid Voltage Relays 2
1 (e)
.b.
Loss of Voltage Relay 2
1 (e) 6.
. Emergency Feedwater System Loss of Feedwater or RC Pump ~
2; 1
Hot Shutdown.
(all four) - Start Motor and Turbine-Pumps a
_.._,..,%i.
I L
TABLE 3.5-1 Continued INSTRUMENTS OPERATING CONDITIONS Functional Unit C.
Engineered Safety Features (con't.)
c (a) 'If minimum conditions are not met within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the unit shall then be placed in a cold shutdown condition.
(b). Also initiatus Low Pressure injection.
1 (c)i. Spray valves opened by manual _ pushbutton listed in item 3 above.
{
(d) Two out of three switches in each actuation channel operable.
(e).If a relay fails in the untripped state, it shall be placed in a tripped state within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to obtain a. degree of redundance of 1.
The relay may be removed from the trippend state for up to 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> for. functional testing pursuant to Table 4.1-1.
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. a.