ML17156A874
| ML17156A874 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 10/04/1988 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML17156A875 | List: |
| References | |
| NUDOCS 8810170390 | |
| Download: ML17156A874 (6) | |
Text
ELECTKICAL POWER SYSTEMS D.C.
SOURCES -
SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.2.2 As a minimum, Division I and diesel generator E or Division II and diesel generator E of the O.C. electrical power sources shall be OPERABLE with:
a.
Division I consisting of:
1.
Load group Channel "A" power source, consisting of:
a) 125 volt OC battery bank
- 10610, 20610"*
b)
Full capacity charger 10613,20613""
2.
Load group Channel "C" power source, consisting of:
a) 125 volt DC battery bank
- 10630, 20630""
b)
Full capacity charger
- 10633, 20633""
3.
Load group "I" power source, consisting of:
a) 250 volt DC battery bank b)
Half-capacity chargers 4.
Load group "I" power source, consisting of:
a)
+ 24 volt OC battery bank b)
Two half-capacity chargers b.
Division II consisting of:
1D650
- 10653A, 10653B 1D670
- 1D673, 10674 1.
Load group Channel "8" power source, consisting of; a) 125 volt DC battery bank
- 10620, 20620""
b)
Full capacity charger
- 10623, 20623""
2.
Load group Channel "0" power source, consisting of:
a) 125 volt OC battery bank
- 10640, 20640""
b)
Full capacity charger
- 10643, 20643"*
3.
Load group "II" power source, consisting of:
a) 250 volt OC battery bank b)
Full capacity charger 10660 10663
, OOL CIO MQ i Q)LA OCA
'JCI
, CPA
+Kg
,C
'Q'A '
EIILO C.
4.
Load group "II" power source, consisting of:
a) t 24 volt DC battery bank b)
Two half-capacity chargers Diesel Generator E
1.
Load group power source, consisting of:
a) 125 volt OC battery bank b)
Full capacity charger 10680
- 10683, 1D684 00595 00596 Not required to be OPERABLE when the requirements of ACTION b have been satisfied.
SUS(UEHANNA - UNIT 1 3/4 8-15 Amendment No.
61
~,I6 i'~87
ELECTRICAL POWER SYSTEMS D.C.
SOURCES -
SHUTDOWN LIMITING CONDITION FOR OPERATION APPLICABILITY:
OPERATIONAL CONDITIONS 4, 5, and *.
ACTION:
a ~
b.
With less than the above required Unit 1 Division I or Division II 125 volt and/or 250 volt,DC load group battery banks OPERABLE, sus-pend CORE ALTERATIONS, handling of irradiated fuel in the secondary containment and operations with a potential for draining the reactor vessel.
With less than the above required Unit 2 125-volt DC load group battery banks OPERABLE, either:
"When irradiated fuel is being handled in the secondary containment and during core alterations and operations with a potential for draining the reactor vessel.
SUS(UEHANNA - UNIT 1 3/4 8-15a Amendment No.
82
~>
ELECTRICAL POWER SYSTEMS I'ISTRIBUTION-SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.3.2 As a minimum, the following power distribution system divisions shall be energized:
a.
For A.C. power distribution, Division I and diesel generator E or Division II and diesel generator E with:
l.
Division I consisting of:
a)
Load group Channel "A" consisting of:
1) 4160 volt A.C. switchgear bus 2) 480 volt A.C. load center 3) 480 volt A.C. motor control centers 4) 208/120-volt A.C. instrument panels b)
Load group Channel "C", consisting of:
1) 4160 volt A.C. switchgear bus 2) 480 volt A. C.
load center 3) 480 volt A.C. motor control centers 4) 208/120 volt A.C. instrument panels c)
Isolated 480 volt A.C. swing bus, including:
1)
Preferred power source 2)
Preferred power source MG set 3)
Alternate power source 4)
Automatic transfer switch 2.
Division II consisting of:
a)
Load group Channel "B", consisting of:
1) 4610 volt A.C. switchgear bus 2) 480 volt A.C. load center 3) 480 volt A.C. motor control centers 4) 208/120-volt A.C. instrument panels b)
Load group Channel "D", consisting of:
1) 4160 volt A.C. switchgear bus 2) 480 volt A.C. load center 1A201 18210
- OB516, OB517
- 18216, 18217 1Y216 1A203 1B230
- OB536, OB136
- 18236, 18237 1Y236 1B219" 1A202 1B220
- 08526, 08527
- 1B226, 1B227 1Y226 1A204 1B240 "The swing bus shall be OPERABLE if the Division I LPCI subsystem alone is fulfillingthe requirements of Specification 3.5.2.
SUS(UEHANNA - UNIT 1 3/4 8-19 Amendment No.
s I"AL POWER SYSTEMS LIH~: TNG CONDITION FOR OPERATION Continued 3) 480 volt A. C. motor control centers 4) 208/120 volt A. C. instrument panels c)
Isolated 480 volt A.C. swing bus, including 1)
Preferred power source 2)
Preferred power source HG set 3)
Alternate power source 4)
Automatic transfer switch 3.
Diesel Generator E
a)
Load Group, consisting of:
1) 480 volt A.C. motor control center
- OB546, 08146
- 1B246, 1B247 1Y246 1B229*
OB565 "The swing bus shall be OPERABLE if the Division II LPCI subsystem alone is fulfillingthe requirements of Specification 3.5.2.
SUS(UEHANNA - UNIT 1 3/4 8-19a Amendment No.
61 IIAR 16 "~8'
REACTIVITY CONTROL SYSTEMS SURVEILLANCE RE UIREMENTS Continued
- 4. 1.3. 1.2 When above the low power setpoint of the RWM and RSCS, all withdrawn control rods not required to have their directional control valves disarmed electrically or hydraulically shall be demonstrated OPERABLE by moving each control rod at least one notch:
a.
At least once per 7 days, and b.
At least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> when any control rod is immovable as a
result of excessive f~iction or mechanical interference.
- 4. 1.3. 1.3 All control rods shall be demonstrated OPERABLE by performance of Surveillance Requirements
- 4. 1.3.2,
- 4. 1.3.4,
- 4. 1.3.5,
- 4. 1.3.6, and 4. 1.3.7.
- 4. l. 3. l. 4 The scram discharge volume shall be determined'OPERABLE by demonstrating:
a.
The scram discharge volume drain and vent valves OPERABLE, when control rods are scram tested from a normal control rod configuration of less than or equal to 50K ROO OENSITY at least once per 18 months,"
by verifying that the drain and vent valves:
2.
Close within 30 seconds after receipt of a signal for control rods to scram, and Open when the scram signal is reset.
b.
Proper float response by verification of proper float switch actuation after each scram from a pressurized condition greater than or equal to 900 psig.
"The provisions of Specification 4.0.4 are not applicable for entry into OPERATIONAL CONOITION 2 provided the surveillance is performed within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after achieving less than or equal to 50K ROO OENSITY.
SUS(UEHANNA -UNIT 2 3/4 1-5
fl N
~
REACTIVITY CONTROL SYSTEMS CONTROL ROD MAXIMUM SCRAM INSERTION'TIMES LIMITING CONDITION FOR OPERATION Y
- 3. 1.3.2 The maximum scram insertion time of each control rod from the fully withdrawn position to notch position 5, based on deenergization of the scram pilot valve solenoids as time zero, shall not exceed 7.0 seconds.
APPLICABILITY:
OPERATIONAL CONDITIONS 1 and 2.
ACTION:
With the maximum scram insertion time of one or more control rods exceeding
7.0 seconds
l.
Declare the control rod(s) with the slow insertion ti'me inoperable, and 2.
Perform the Surveillance Requirements of Specification 4. 1. 3. 2. c.
at least once per 60 days when operation is continued with three or more control rods with maximum scram insertion times in excess of 7.0 seconds.
Otherwise, be in at least HOT SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
SURVEILLANCE RE UIREMENTS
- 4. 1.3.2 The maximum scram insertion time of the control rods shall be demonstrated through measurement with reactor coolant pressure greater than or equal to 950 psig and, during single control rod scram time tests, the control rod drive pumps isolated from the accumulators:
a.
For all control rods prior to THERMAL POWER exceeding 40K of RATED THERMAL POWER following CORE ALTERATIONS" or after a reactor shutdown that is greater than 120 days, b.
For specifically affected individual control rods following maintenance on or modification to the control rod or control rod drive system which could affect the scram insertion time of those specific control rods, and c.
For at least 10K of the control rods, on a rotating basis, at least once per 120 days of POWER OPERATION.
"Except normal control rod movement.
SUSQUEHANNA " UNIT 2 3/4 1-6 Amendment No.
50