ML18046A623
| ML18046A623 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 05/07/1981 |
| From: | CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | |
| Shared Package | |
| ML18046A622 | List: |
| References | |
| NUDOCS 8105120203 | |
| Download: ML18046A623 (5) | |
Text
CONSUMERS POWER COMPANY Docket 50-255 Request for Change to the.Technical Specifications License DPR-20 For the reasons hereinafter set forth, it is requested that the Technical Specifications contained in the Provisional Operating License DPR-20, Docket 50-255; issued to Consumers Power Company on October 16, 1972, for the Palisades Plant be changed as described in Section I below:
I.
Change No
- 11.
- 12.
- 13.
- 14.
- 15.
A.
Add the following to Section 3.1.1:
B.
"i.
The PCS shall not be heated or maintained above 325 °F unless a minimum of 375 kW of pressurizer heater capacity is available from both buses lD and lE.
Should heater capacity from.either bus lD or lE fall below 375 kW, either restore the inoperable heaters to provide at. least 375 kW of heater capacity from both buses lD and lE within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in hot shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />."
Add the following to Functional Unit Pressurizer Water Level (LI-0102)
Pressurizer Code Safety Relief.Valve Position Indication (Acoustic Monitor or Temperature Indication)
Subcooling Margin Monitor Auxiliary Feed Flow Rate Indication Aweiliary Feed Pump Auto Initiation Circuitry Table 3.17.4:
TABLE 3.17.4 Minimum Operable Channels 2
1 per Valve 1
1 per Steam Generator 1 per (g)
Pump (Contd)
Minimum Degree of Redundancy 1
None None None None Permissible Bypass Conditions Not Required in Cold or Refueling Shutdown Not Required Below 325°F Not Requfred Below 515°F Not Required Below 325°F Not Required Below 325°F 1
(g)
With either auxiliary feed pump automatic initiation circuit inoperable, in lieu of the requirement of 3.17.2, provide a second licensed operator in the control room within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />.
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- c.
Add the following to Table 4.1.3:
TABLE 4.1.3 Surveillance.
No Channel Description Function Frequency Surveillance Method
- 15.
Auxiliary Feed Pump
- a.
Check M (5)
- a.
Comparison of Channels Flow Indication
- b.
Calibrate R
- b.
Known Differential Pres-sure Applied to Sensors
- 16.
Auxiliary Feed Pump
- a.
Test M (2)(5)
- a.
Internal Test Signal Auto Initiation
- b.
Calibrate R
- b.
Known Differential Pres-sure Applied to Sensors
- 17.
Pressurizer Code Safety Relief Valve Position Indication
- a.
Temperature
- a.
Calibrate R
- a.
Known Resistance Sub-stituted for RTD
- b.
Check s
- b.
Comparison of Channels
- b.
Acoustic Monitor. a.
Calibrate R
- a.
Inject Calibrated Test Signal
- 18.
Subcooling Margin
- a.
Check s
a-.
Comparison of Channels Monitor
- b.
Calibrate R
- b.
Known Resistance Sub-stituted for RTD Coinci-dent With Known Pressure Input (3)
NOTES:
(2) Test method to be alternated to include starting auxiliary feedwater pump from the control room hand switch, from the breaker and from the automatic start in a three-month period.
(3) In conjunction with Item 4(b), Table 4.1.1.
(5) It is not necessary to perform the specified testing during the cold shutdown condition.
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3 II.
Discussion The above proposed Technical Specifications changes A through C are associated with actions taken by Consumers Power Company in response to the Category "A" items of the Commission's recommendations resulting from TMI-2 Lessons Learned.
Your letter, dated July 2, 1980, provided proposed specifications in standard technical format to define system designs, LCOs, associated actions and surveillance requirements for (1) emergency power supply, (2) valve position indication, (3) instrumentation for inadequate core cooling, (4) containment isolation, (5) auxiliary feedwater systems, and (6) shift technical advisors.
(1)
Emergency Power Supply - Since the pressurizer water level.
indicators, pressurizer relief and block valves and pressurizer heaters are important in a post-accident situation, the NRC states that adequate emergency power should be supplied to these components to ensure that they function properly.
The addition of Section 3.1.li to the Palisades Plant Technical,
Specifications provides assurance that pressurizer heater capacity is available by requiring both lD and lE electrical buses to be operable when the PCS is 2: 325°F.
If either bus falls below 375 kW, when PCS is 2: 325°F, then restore the inoperable heaters to provide at least 375 kW of heater capacity within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in hot shutdown within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
The pressurizer water level requirements are displayed in Table 3.17.4, Item (g).
This table is for instrumentation operating requirements.
In the event that the number of channels of the pressurizer water level system falls below the limits given in the column "Minimum Operable Channels" or "Minimum Degree of Redundancy," except as noted by the column noted "Permissible Bypass Conditions," the reactor will be placed in hot shutdown within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If minimum conditions are not IIiet within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the reactor will be placed in cold shutdown within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
The pressurizer relief valves and block valves requirements are displayed in Tables 3.17.4, Item 10 and 4.1.3, Item 20 of the Palisades Plant.
In the event the number of channels of pressurizer code safety relief valve position indication system service falls below the limits given in the columns entitled "Minimum Operable Channels" or "Minimum Degree of Redundancy," except as conditioned by the column entitled "Permissible Bypass Conditions" (Table 3.17.4), the reactor shall be placed in *a hot shutdown condition within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If minimum conditions are not met within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the reactor shall be placed in a cold shutdown condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
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Table 4.1.3 provides surveillance requirements for the Palisades Plant.
(2)
Valve Position Indication - This item is addressed above under Pressurizer Relief Valve Requirements.
4 (3)
Instrumentation for Inadequate Core Cooling - This item is covered
. in Tables 3.17.4, Item 11 and 4;1.3, Item 21.. Table 3.17.4 provides instrumentation operating requirements.
In the event the number of channels for the Inadequate Core Cooling System service falls below the limits given in the columns entitled "Minimum Operable Channels" or "Minimum Degree of Redundancy,"
except as conditioned by the column entitled "Permissible Bypass Conditions," the reactor shall be placed in a hot shutdown condition within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If minimum conditions are not met within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the reactor shall be placed in a cold shutdown condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
Table 4.1~3 provides surveillance requirements for inadequate core cooling (subcooling margin monitor) for the Palisades Plant.
(4)
Containment Isolation - The present Palisades Technical Speci-fications are adequate to address this area.
(5)
Auxiliary Feedwater Systems - These items are covered in Tables 3.17.4, Item 13 and 4.1.3, Items 18 and 19.
Table 3.1.7 provides instrumentation operating requirements.
In the event the number of channels for auxiliary feedwater auto initiation and flow indication service falls below the limits given in the columns entitled "Minimum Operable Channels" or "Minimum Degree of Redundancy," except as conditioned by the column entitled "Permissible Bypass Conditions," the reactor shall be placed in a hot shutdown condition within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
If minimum conditions are not met within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the reactor shall be placed in a cold shutdown condition within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
Table 4.1.3 provides surveillance requirements for the auxiliary feedwater auto initiation and flow indication.
(6)
Shift Technical Advisor - This item will not be addressed at this time.
Upon establishment of our corporate position, information regarding this item will be provided.
Our existing Technical Specifications (TS) already address the issue of systems integrity measurements.
No further TS changes are needed at this time.
We are presently*operating under an interim method of an iodine measurement system which has been accepted by the NRC, providing extensive TS changes for this method would not be advantageous since they would have to be completely changed upon installing our permanent iodine measurement system.
Both the system integrity and iodine null80-0072b-43
measurement topics have been previously addressed in our March 4, 1980 TM! submittal.
These proposed TSs address these topics in current Palisades Plant TS format.
These changes, along with the existing TS for these topics, adequately address the concerns of your July 2, 1980 letter.
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