ML18052A161

Proposed Tech Spec Changes,Providing New Specs for Alternate Shutdown Sys & New Surveillance Requirements for Emergency Lighting Sys

ML18052A161
Person / Time
Site:	Palisades
Issue date:	11/21/1985
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18052A159	List: ML18052A158 ML18052A160 ML18052A161
References
NUDOCS 8511260141
Download: ML18052A161 (9)

Text

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ATTACHMENT Consumers Power Company Palisades Plant Docket 50-255 PROPOSED TECHNICAL SPECIFICATIONS PAGES November 21, 1985

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!. ~DR ADOCK PDR TSP1185-0335-NL04

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3.25 ALTERNATE SHUTDOWN SYSTEM LIMITING CONDITION FOR OPERATION 3.25.1 The Alternate Shutdown System instrumentatio.n and components shown in Table 3.25.1 shall be OPERABLE. Operability shall be demonstrated by performing the surveillances in accordance with Section 4.20.

APPLICABILITY:

Reactoi coolant temperature > 325°F.

ACTION:

a. With less than the "Minimum Equipment" in Table 3.25.1 Operable, restore the inoperable equipment to Operable with 7 days, or provide equivalent shutdown capability and restore the inoperable equipment to Operable within 60 days; 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 /> and Cold Shutdown within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

b. The provisions of Specification 3.0.3 and 3.0.4 do not apply.

Basis The operability of the Alternate Shutdown System ensures that any fire will not preclude achieving safe shutdown. The Alternate Shutdown System components are independent of areas where a fire could damage systems normally used to shut down the reactor. This capability is consistent with Regulatory Guide 1.97 and Appendix R to 10CFR50.

3-134 Proposed TSP1185-0335-NL04

Table 3.25.1 ALTERNATE SHUTDOWN MINIMUM EQUIPMENT Minimum Readout No Instrumentation Equipment Location 1 Pressurizer Pressure 1 Cl SO (PI-OllO) 2 Pressurizer Level 1 ClSO (LI-0102E) 3 Reactor Coolant Hot Leg l/Loop ClSOA Temperature (TI-0112HAA)

(TI-0122HAA) 4 Reactor Coolant Cold Leg l/Loop ClSOA Temperature (TI-0112CAA)

(TI-0122CAA) 5 Steam Generator Pressure l/S.G. ClSOA (PI-0751E)

(PI-0752E) 6 Steam Generator Level l/S.G. Cl SO (LI-0757C)

(LI-0758C) 7 Start-up Range Neutron 1 ClSOA Monitor (N-OOlA) 8 Auxiliary Feedwater 1 Cl SO Suction Pressure (PS-0741D) 9 SIRW Tank Level 1 ClSOA (LT-0332B) 10 Auxiliary Feedwater l/S.G. Cl50 Flow Rate (FI-0727B)

(FI-0749B) 3-135 Proposed TSP1185-0335-NL04

Table 3.25.1 (Continued)

ALTERNATE SHUTDOWN MINIMUM EQUIPMENT Transfer Minimum Switch No Switches Equipment Location Function 11 HS-0102A 1 Cl50 Control Room Alarm 12 HS-0102B 1 Cl50 S/G Level Indications Pressurizer Level Indications Aux. FW Flow Indication Aux. FW Flow Control 13 HS-0522C Cl50 Opens Aux. FW Pump Steam Valve CV-0522B 14 HS-0102C 1 Cl50A Control Room Alarm S/G Pressure Indications Hot/Cold Leg Temperature Indications Minimum Controls No Control Circuits Eg,uiEment From Function 15 Auxiliary FW Flow 1 Cl50 Controls B S/G Control (HIC-0727C) Aux. FW Flow Control Valve (CV-0727) 16 Auxiliary FW Flow 1 Cl50 Controls A S/G Control (HIC-0749C) Aux. FW Flow Control Valve (CV-0749) 3-136 Proposed TSP1185-0335-NL04

4.7 EMERGENCY POWER SYSTEM PERIODIC TESTS 4~7.2 Station Batteries (Contd)

b. Every three months, the specific gravity of each cell, the temperature reading of every fifth cell, the height of electrolyte, and the amount of water added shall be measured and recorded.

Basis The emergency power system provides power requirements for the engineered safety features in the event of a DBA. Each of the two diesel generators is capable of supplying the minimum required safeguards equipment from independent buses. (1, 2) This redundancy is a factor in establishing testing intervals. The monthly tests specified above will demonstrate operability and load capacity of the

. diesel generator. The fuel supply and various controls are -

continuously monitored and alarmed for abnormal conditions. Starting on complete loss of off-site power will be verified by simulated loss-of-power tests at approximately yearly intervals (during refueling shutdowns). Considering system redundancy, the specified testing intervals for the station batteries should be adequate to detect and correct any malfunction before it can result in system malfunction.

Batteries will deteriorate with time, but precipitous failure is extremely unlikely. The surveillance specified is that which has been demonstrated over the years to provide an indication of a cell becoming unserviceable long before it fails.

References :

(1) FSAR, Section 8.4.1.

(2) FSAR, Section 8.5.2.2.

4-43 Proposed TSP1185-0335-NL04

4.7 EMERGENCY POWER SYSTEM PERIODIC TESTS (Contd) 4.7.3 EMERGENCY LIGHTING SURVEILLANCE REQUIREMENTS 4.7.3.1 Each DC light powered by station batteries outside of containment shall be verified OPERABLE at least once a year. These same type of lights inside of containment shall be verified OPERABLE-prior to removal of the reactor head.

4.7.3.2 Each battery powered Emergency Lighting Unit (ELU) shall be verified functional at least once per year. Demonstration of OPERABILITY shall be performed every 24 months to prove minimum lighting duration of eight hours.

Basis The operability of the emergency lighting system ensures that sufficient lighting will be provided in all areas needed for operation of safe shutdown equipment and access/egress routes thereto.

References (1) Updated FSAR, Section 8.8 (2) Appendix R to 10CFR50, Section III J 4-43a Proposed TSP1185-0335-NL04

4.20 ALTERNATE SHUTDOWN SYSTEM SURVEILLANCE REQUIREMENTS 4.20.1 Each alternate shutdown monitoring instrumentation channel shall be demonstrated OPERABLE by performing a channel check and a channel calibration per Table 4.20.1.

4.20.2 Each alternate shutdown system transfer switch and control circuit shall be demonstrated OPERABLE by operating each activated component from the alternate shutdown panel, at least once per refueling cycle.

4-85 Proposed TSP1185-0335-NL04

TABLE 4.20.1 ALTERNATE SHUTDOWN MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS Surveillance Surveillance Channel DescriEtion Function Freg,uencl'.: Method

1. Pressurizer Pressure Indication a. Check(l) Quarterly a. Compare independent (PI-:-0110) pressure readings

b. Calibrate Refueling b. Known pressure applied Cycle to pressure sensor

2. Pressurizer Level Indication a. Check(l) Quarterly a. Compare independent (LI-0102E) level readings

b. Calibrate Refueling b. Apply known differential Cycle pressure to level sensor

3. Reactor Coolant Hot Leg Temperature a. Check(l) Quarterly a. Compare independent Indication (TI-0112HAA) temperature readings (TI-0122HAA) b. Calibrate Refueling b. Substitute known Cycle resistance for RTD

4. Reactor Coolant Cold Leg Temperature a. Check(l) Quarterly a. Compare independent Indication (TI-0112CAA) temperature readings (TI-0122CAA) b. Calibrate Refueling b. Substitute known Cycle resistance for RTD

5. Steam Generator Pressure *Indication a. Check(l) Quarterly a. Compare independent (PI-0751E) pressure readings (PI-0752E) b. Calibrate Refueling b. Apply known pressure Cycle to pressure sensor

6. Steam Generator Level Indication a. Check(l) Quarterly a. Compare independent (LI-0757C) level readings

{LI-0758C) b. Calibrate Refueling b. Apply known differential Cycle pressure to level sensor 4-86 Proposed TSP1185-0335-NL04

TABLE 4.20.1 (Continued)

ALTERNATE SHUTDOWN MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS Surveillance Surveillance Channel Description Function Frequency Method

7. Start-up Range Neutron Monitor a. Test Prior to a. Internal test signal (N-OOlA) startup(4)

8. Auxiliary Feedwater Low Suction Pressure Switch (PS-0741D) a. Calibrate Refueling a. Apply known pressure to cycle pressure sensor

9. SIRW Tank Level Indication a. Check(l) Quarterly a. Compare independent (LI-0332B) level readings

b. Calibrate Refueling b. Apply known differential cycle pressure to level sensor

10. Auxiliary Feedwater Flow Rate(2)

Indication (FI-0727B) a. Calibrate Refueling a. Apply known differential (FI-0749B) cycle pressure to sensor(s)

11. Auxiliary Feedwater Flow Control(3) a. Check Refueling a. Verify Control Valves (CV-0727 & CV-0749) cycle

12. Auxiliary Feedwater Pump Inlet a. Check Refueling a. Verify Control Steam Valve. (CV-0522B) cycle NOTES:

(l)Quarterly checks are not required when the plant is less than 325°F.

(2)Satisfies Table 4.1.3-15 Requirement.

(3)See Specification 4.9b.

(4)Prior to each startup, if not done previous week.

4-87 proposed TSP1185-0335-NL04