ML20197B851
| ML20197B851 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 03/06/1998 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20197B857 | List: |
| References | |
| NUDOCS 9803120206 | |
| Download: ML20197B851 (2) | |
Text
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kAFETYLIMITSANDLIMITINGSAFETYSYSTEMSETTINGS 2.2 LIMITING SAFETY SYSTEM SETTINGS REACTOR TRIP SYSTEM INSTRUMENTATION'SETPOINTS 2.2.1 The Reactor Trip System Instrumentation and Interlock Setpoints shall be set consistent with the Trip Setpoint values shown in Table 2.2-1.
APPLICABILITY: As shown for each channel in Table,3.3-1.
AGIlQti:
With a Reactor Trip-System Instrumentation or Interlock setpoint less a.
conservative than the value shown in the Trip setpoint column but more conservative than the value shown in the Allowable Values column of Table i
2.2-1, adjust the Setpoint consistent with the Trip setpoint value.
b.
With a Reactor Trip System Instrumentation or Interlock Setpoint less conservative than the value shown in the Allowable Values column of Table 2.2-1, declare the channel inoperable and apply the a>plicable ACTION statement requirements of Specification 3.3.1 until tte channel is restored to OPERABLE status with its Setpoint adjusted consistent with g
the Trip setpoint value, t
DIABLO CANYON - UNITS 1 & 2 2-3 Unit 1 - Amendment No. M,103 Unit 2 - Amendment No. E,102 980312O206 980306 PDR ADOCK 05000275 P
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TABLE 2.2-1 W
REACTOR TRIP SYSTEM INSTRUMENTATION TRIP SETP0!NTS l
9 l
2i FUNCTIONAL UNIT TRIP SETP0 INT ALLOWABLE VALUES l
E
- 1. Manual Reactor Trip N.A.
N.A 5
- 2. Power Range. Neutron Flux l
C d
a.
Low Setpoint 5 25% of RATED THERMAL POWER 5 26.2% of RATED THERMAL POWER b.
High Setpoint 5109% of RATED THERMAL POWER 5 110.2% of RATED THERMAL POWER b
- 3. Power Range. Neutron Flux 5 5% of RATED THERMAL POWER with 5 5.6% of RATED THERMAL POWER l
High Positive Rate a time constant 2 2 seconds with a time constant 2 2 seconds
- 4. Power Range. Neutron Flux 5 5% of RATED THERMAL POWER with 5 5.6% of RATED THERMAL POWER l
High Negative Rate a time constant 2 2 seconds with a time constant 2 2 seconds
- 5. Intermediate Range. Neutron 5 25% of RATED THERMAL POWER 5 30.6% of RATED THERMAL POWER P
Flux u
5 5
- 6. Source Range. Neutron Flux 510 counts per second 51.4 x 10 counts per second gg
- 7. Overtemperature AT See Note 1 See Note 2 J. J.
See Note 3 See Note 4
[
- 8. Overpower AT
- 9. Pressurizer Pressure-Low 2 1950 psig 2 1947.5 psig RF
[ [
- 10. Pressurizer Pressure-High 5 2385 psig 5 2387.5 psig l
f"'
- 11. Pressurizer Water Level-High 5 90% of instrument span 5 90.2% of instrument span l
- 12. Reactor Coolant Flow-Low 2 90% of minimum measured 2 89.8% of minimum measured l
flow ** per loop flow ** per loop lRS l5j 1852 WM
- Minimum measured flow is 89.800 gpm per loop for Unit 1 and 90.625 gpm per loop for Unit 2.
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