ML18044A836
| ML18044A836 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 05/05/1980 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML18044A833 | List: |
| References | |
| NUDOCS 8005070480 | |
| Download: ML18044A836 (2) | |
Text
AITACHHENT Page Changes for Proposed Technical Specifications Change 8006070 480l
- l.
i
3.10 CONTROL ROD AND~R PISTRIBUTION LIMITS Applicability Applies to operation of control rods and hot channel factors during operation.
Objective To specify limits of control rod movement to assure an acceptabl~ power distribution during power operation, limit worth of individual rods to values analyzed for accident condit_ions, maintain adequate shutdown margin after a reactor trip and to specify acceptable power limits for power tilt conditions.
Specifications 3.10.1 Shutdown Margin Requirements
- a.
With four primary coolant pumps in operation at hot shutdown and above, the shutdown margin shall be 2%.
- b. *with less than four primary coolant pumps in operation at hot
-shutdown_ and above, the shutdown margin shall be increased to and maintained at~ 3.75%.
- c.
At less than the hot shutdown condition, boron concentration shall be shutdown boron concentration.
\\
d.-
If a control rod cannot be tripped, shutdown margin shall be increased by boration as necessary to compensate for the worth of the withdrawn inoperable rod.
- e.
The drop time of each control rod shall be no greater than 2.5 seconds from the beginning of rod motion to 90% insertion.
3.10.2 Individual Rod Worth
- a.
The maximum worth of any one rod*in the core at rated power shall be equal to or less than 0.6% in reactivity.
- b.
The maximum worth of any one rod in.the core at zero power shall be equal to or less than 1. 2% in reactivity.
3.10.3 Power Distribution Limits
- a.
The linear heat generation rate at the peak power Elevation z shall not exceed:
15.28 kW/Ft x F (Z) for ENC Fuel Types A
14.12 kW/Ft x FA(Z) for D Type Fuel where the function F iZ) is*_ shown-in Figure 3. 9.
If the power dis-tribution is double peaked, both peaks shall satisfy-the criterion.
Appropriate consid~ration shall be given to the following factors:
(1)
A flux peaking augmentation factor of 1.0, (2)
A measuremen~ calculational uncertainty factor of 1.10, 3-58