ML050750263
| ML050750263 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/11/2005 |
| From: | NRC/NRR/DLPM/LPD4 |
| To: | Pacific Gas & Electric Co |
| Donohew J N, NRR/DLPM,415-1307 | |
| Shared Package | |
| ML050740544 | List: |
| References | |
| TAC MC2024, TAC MC2025 | |
| Download: ML050750263 (1) | |
Text
RTS Instrumentation 3.3.1 Table 3.3.1-1 (page 3 of 7)
Reactor Trip System Instrumentation APPLICABLE MODES OR L(a)
OTHER NOMINA SPECIFIED REQUIRED SURVEILLANCE ALLOWABLE TRIP FUNCTION CONDITIONS CHANNELS CONDITIONS REQUIREMENTS VALUE SETPOINT
- 10. ReactorCoolant 1(9) 3 per loop M
SR 3.3.1.1 2 89.8% of 90% of Flow-Low SR 3.3.1.7 measured measured SR3.3.1.10 loop flow loop flow SR 3.3.1.16
- 11. Reactor Coolant 1(g)
I perRCP N
Breaker Position
- 12. Undervoltage 1(9) 2per bus M
Ž7877V 8050 V RCPs SR 3.3.1.10 each bus each bus SR 3.3.1.16
- 13. Underfrequency 1(g) 3 per bus M
Ž53.9 Hz 54.0 Hz RCPs SR 3.3.1.10 each bus each bus SR 3.3.1.16
- 14. a. Steam 1,2 3perSG E
SR 3.3.1.1 214.8%
15.0%
Generator SR 3.3.1.7 (SG) Water SR 3.3.1.10 Level-Low SR 3.3.1.16 Low
- b. SG Water 1,2 4
- 1.01 TTD
- TD Level - Low SR 3.3.1.10 TD (Note 3)
(Note 3) for Low Trip Time for RCS loop RCS loop AT Delay (TTD)
AT variable variable input input
- 50.7%
50% RTP RTP TTD=0 and TTD=0 for RCS loop for RCS loop AT variable AT variable input 50%
input > 50.7 RTP
% RTP
- 15. Not used (continued)
(a) A channel is OPERABLE with an actual Trip Setpoint value outside its calibration tolerance band provided the Trip Setpoint value is conservative with respect to Its associated Allowable Value and the channel is re-adjusted to within the established calibration tolerance band of the Nominal Trip Setpoint. A Trip Setpoint may be set more conservative than the Nominal Trip Setpoint as necessary in response to plant conditions.
(g) Above the P-7 (Low Power Reactor Trips Block) interlock.
DIABLO CANYON - UNITS I & 2 8S9IDI12.DOC - R12 16 3.3-14 Unit I - Amendment No. 435 442464 478 179 Unit 2 - Amendment No. 435 142 42480181