ML081790436
| ML081790436 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 06/23/2008 |
| From: | NRC/NRR/ADRO/DORL/LPLIII-1 |
| To: | |
| Poole Justin/DORL/LPL3-1/ 301-415-2048 | |
| Shared Package | |
| ML081500551 | List: |
| References | |
| TAC MD7952 | |
| Download: ML081790436 (6) | |
Text
Frequency 1.4 1.4 Frequency EXAMPLES EXAMPLE 1.4-2 (continued)
"Thereafter" indicates future performances must be established per SR 3.0.2, but only after a specified condition is first met (i.e., the "once" performance in this example).
If reactor power decreases to < 25% RTP, the measurement of both intervals stops.
New intervals start upon reactor power reaching 25% RTP.
EXAMPLE 1.4-3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY
.---------- NOTE ------------------
Not required to be performed until 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after Ž 25% RTP.
Perform channel adjustment.)
7 days The interval continues whether or not the
< 25% RTP.between performances.
unit operation is As the Note modifies the required performance of the Surveillance, it is construed to be part of the "specified Frequency."' Should the 7 day interval be exceeded while operation is < 25% RTP, this Note allows 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> after power reaches Ž 25% RTP to perform the Surveillance.
The Surveillance is still considered to be within the "specified Frequency."
Therefore, if the Surveillance were not performed within the 7 day interval (plus the extension allowed by SR 3.0.2), but operation was < 25% RTP, it would not constitute a failure of the SR or failure to meet the LCO.
Also, no violation of SR 3.0.4 occurs when changing MODES, even with the 7 day Frequency not met, provided operation does not exceed 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> (plus the extension allowed by SR 3.0.2) with power
- 25% RTP.
(continued)
FERMI - UNIT 2 1.4-4 Amendment No. 334, 179
Frequency 1.4 1.4 Frequency EXAMPLES EXAMPLE 1.4-3 (continued)
Once the unit reaches 25% RTP, 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> would be allowed for completing the Surveillance.
If the Surveillance were not performed within this 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> interval (plus the extension allowed by SR 3.0.2), there would then be a failure to perform a Surveillance within the specified Frequency, and the provisions of SR 3.0.3 would apply.
EXAMPLE 1.4-4 SURVE LLANCE REQU I REMENTS SURVEILLANCE FREQUENCY
NOTE ------------------
Only required to be met in MODE 1.
Verify leakage rates are within limits.
24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Example 1.4-4 specifies that the requirements of this Surveillance do not have to be met until the unit is in MODE 1. The interval measurement for the Frequency of this Surveillance continues at all times, as described in Example 1.4-1.
However, the Note constitutes an "otherwise stated" exception to the Applicability of this Surveillance.
Therefore, if the Surveillance were not performed within the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> interval (plus the extension allowed by SR 3.0.2),
but the unit was not in MODE 1, there would be no failure of the SR nor failure to meet the LCO.
Therefore, no violation of SR 3.0.4 occurs when changing MODES, even with the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Frequency exceeded, provided the MODE change was not made into MODE 1.
Prior to entering MODE 1 (assuming again that the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Frequency were not met),
SR 3.0.4 would require satisfying the SR.
FERMI - UNIT 2 1.4-5 Amendment No. 4-34,179
Control Rod OPERABILITY 3.1.3 ACTIONS CONDITION REQUIRED ACTION COMPLETION TIME A. (continued)
A.3 Perform SR 3.1.3,2 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> from for each withdrawn discovery of OPERABLE control rod.
Condition A concurrent with THERMAL POWER greater than the low power setpoint (LPSP) of the RWM AND A.4 Perform SR 3.1.1.1.
72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> B.
Two or more withdrawn B.I Be in MODE 3.
12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> control rods stuck.
C.
One or more control
...... NOTE -------------
rods inoperable for RWM may be bypassed as reasons other than allowed by LCO 3.3.2.1. if Condition A or B.
required, to allow insertion of inoperable control rod and continued operation.
C.I Fully insert 3 hours3.472222e-5 days <br />8.333333e-4 hours <br />4.960317e-6 weeks <br />1.1415e-6 months <br /> inoperable control rod.
AND C.2 Disarm the associated 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> CRD.
(continued)
FERMI -UNIT 2
3.1-8 Amendment No. 1-34, 179
Control Rod OPERABILITY 3.1.3 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.1.3.1 Determine the position of each control rod.
24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> SR 3.1.3.2 NOTE --------------------
Not required to be performed until 31 days after the control rod is withdrawn and THERMAL POWER is greater than the LPSP of the RWM.
Insert each withdrawn control rod at least 31 days one notch, SR 3.1.3.3 Verify each control rod scram time from In accordance fully withdrawn to notch position 06 is with 7 seconds.
SR 3.1.4.1, SR 3.1.4.2, SR 3.1.4.3, and SR 3.1.4.4 SR 3.1.3.4 Verify each control rod does not go to the Each time the withdrawn overtravel position.
control rod is withdrawn to "full out" position AND Prior to declaring control rod OPERABLE after work on control rod or CRD System that could affect coupling FERMI -UNIT 2
-3.1-10 Amendment No. 134,179
Control Rod OPERABILITY 3.1.3 THIS PAGE INTENTIONALLY LEFT BLANK FERMI - UNIT 2 3.1-11 Amendment No. 134,179
.Control Rod Scram Times 3.1.4 Table 3.1.4-1 (page 1 of 1)
Control Rod Scram Times
...... ------------------------------- NOTES ------------------------------
- 1.
OPERABLE control rods with scram times not within the limits of this Table are considered "slow."
- 2.
Enter applicable Conditions and Required Actions of LCO 3.1.3, "Control Rod OPERABILITY,"
for control rods with scram times > 7 seconds to notch position 06. These control rods are inoperable, in accordance with SR 3.1.3.3, and are not considered "slow."
SCRAM TIMES when REACTOR STEA? Q1 PRESSURE Ž 800 psig (seconds)%?Ma)*
NOTCH POSITION 46 0.457 36 1.084 26 1.841 06 3.361 (a)
Maximum scram time de-energization of (b)
When reactor steam limits apply.
from fully withdrawn position, based on scram pilot valve solenoids at time zero.
dome pressure is < 800 psig established scram time FERMI -UNIT 2
3.1-i4 Amendment No. 134,179