ML13331B092

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Proposed Tech Specs,Including Table 3.5.6-1, Accident Monitoring Instrumentation
ML13331B092
Person / Time
Site: San Onofre Southern California Edison icon.png
Issue date: 11/11/1988
From:
SOUTHERN CALIFORNIA EDISON CO.
To:
Shared Package
ML13331B090 List:
References
NUDOCS 8811160234
Download: ML13331B092 (4)


Text

ATTACHMENT 2 PROPOSED TECHNICAL SPECIFICATION P4 116111 A

~DCCK 0 F0020

TABLE 3.5.6-1 ACCIDENT MONITORING INSTRUMENTATION MINIMUM TOTAL NO.

CHANNELS INSTRUMENT OF CHANNELS OPERABLE Pressurizer Water Level 3

2 Auxiliary Feedwater Flow Indication*

2/steam generator 1/steam generator Reactor Coolant System Subcooling Margin Monitor 2

1 PORV Position Indicator (Limit Switch) 1/valve 1/valve PORV Block Valve Position Indicator (Limit Switch) 1/valve 1/valve Safety Valve Position Indicator (Limit Switch) 1/valve 1/valve Containment Pressure (Wide Range) 2 1

Steam Generator Water Level (Narrow Range) 1/steam generator 1/steam generator Refueling Water Storage Tank Level 2

1 Containment Sump Water Level (Narrow Range)**

2 1

Containment Water Level (Wide Range) 2 1

Auxiliary feedwater flow, indication for each steam generator to provided by one channel of steam generator level (Wide Range) and one channel of auxiliary feedwater flow rate.

These comprise the two channels of auxiliary feedwater flow indication for each steam generator.

    • Operation may continue up to 30 days with one less than the total number of channels OPERABLE.

B. Acceptable levels of performance shall be as follows:

(1) The safety injection pumps shall reach and be capable of maintaining 95% of their rated shutoff head within 10 seconds after starting.

(2) The refueling water pumps shall be capable of maintaining 90% of their rated shutoff head.

(3) The recirculation pumps shall be run dry.

Proper starfing of the pump is confirmed by observation of the running current on the ammeter.

(4) The spray additive pumps shall be capable of maintaining their rated flow at a discharge pressure not less than 90% of their rated discharge pressure.

C. The recirculation loop outside containment (including the Containment Spray System) shall be pressurized at a pressure equal to or greater than the operating pressure under accident conditions at intervals not to exceed the normal plant refueling interval.

Visual inspections for leakage shall be made and if leakage can be detected, measurements of such leakage shall be made. In addition, pumps and valves of the recirculation loop outside containment which are used during normal operation, shall be visually inspected for leakage at intervals not to exceed once every six months. If leakage can be detected, measurements of such leakage shall be made.

D. The non-redundant Containment Spray System piping shall be visually inspected at intervals not to exceed the normal plant refueling interval.

Observations made as part of compliance with Paragraph C, above, or Paragraph I.B(2) of Technical Specification 4.2 will be acceptable as visual inspection of portions of non-redundant Containment Spray System piping.

E. Monthly, perform a CHANNEL TEST and every refueling interval, perform a CHANNEL CALIBRATION, of the SI/Feedwater Pump trip on low-low Refueling Water Storage Tank level.

2. Simulating SISLOP*, and:
a. Verifying operation of circuitry which locks out non-critical equipment,
b. Verifying the diesel performs a OG FAST START from standby condition on the auto-start signal, energizes the emergency buses with permanently connected loads and the auto connected emergency loads** through the load sequencer (with the exception of the feedwater, safety injection, charging and refueling water pumps whose respective breakers may be racked-out to the test position) and operates for > 5 minutes while its generator is loaded with the emergency loads,
c. Verifying that on the safety injection actuation signal, all diesel generator trips, except engine overspeed and generator differential, are automatically bypassed.
3. Verifying the generator capability to reject a load of 4000 kW without tripping.

SISLOP is the signal generated by coincident loss of offsite power (loss of voltage on Buses lC and 2C) and demand for safety injection.

The sum of all loads on the engine shall not exceed 5250 kW + 5%.