ML20196B530

Proposed Tech Specs Supporting Change 134 Re Main Steam Excess Flow Check Valve & Turbine Valve Testing Frequency

ML20196B530
Person / Time
Site:	Maine Yankee
Issue date:	11/22/1988
From:	Maine Yankee
To:
Shared Package
ML20196B528	List: ML20196B526 ML20196B530
References
NUDOCS 8812060292
Download: ML20196B530 (3)

Text

- - _ - - - - - - - - - -

MaineYankee Attachment 3 Proposed Technical Specifications 8812060292 881122 PDR ADOCK 05000309 P PDC 0315L-RHS

~

MaineYankee Table 4.2-2 Minimum Freauencies for Eautoment Tests Ild Freauency

1. Control Element Assemblies Drop times of all full-length Iach refueling (CEAs) CEAs interval

2. Control Element Assemblies Partial movement of all CEAs Monthly when ]

(minimum of 6") the reactor is ]

critical ) .

3. Pressurizer Safety Valves Set Point One valve each refueling interval

4. Main Steam Safety Valves Set Point 2 valves per steam '

generator, each l refueling intervn1

5. Refueling System Interlocks functioning Prior to refueling operations

6. Primary System Leakage Evaluate Daily **

't

7. Diesel Fuel Supply Fuel Inventory Weekly

8. Deleted .

t S. Turbine Stop Governor, Functioning Every three months)) ,

Reheater and Intercept when the turbine )) l Valves is operating. ))

10. L.P. Turbine Rotor Visual, Magnetic Particle or One rotor each 4 '

Inspection Liquid Penetrant years

11. Post-accident containment >

vent system a) System valves Verify operability Upon installation and within < 9 month of startup from each '

refueling shutdown.

b) Flowpath Verify system flow Upon installing and capability by observing and within one month flow indication on the of startup from each system flowmeter refueling shutdown.

t i

4.2-6 11/22/88 l L

0315L-RHS

When the reactor is in a porer operation c:ndition (Condition 7), monthly inspections shall be perforced t3 verify that all manual valves in the emergency and auxiliary feedwater systems necessary to assure emergency and auxiliary feedwater flow from the primary water source to the stears generators are locked in the proper position.

When the reactor is in a power operation condition (Condition 7), each motor driven emergency feed pump and the turbine driven auxiliary feedwater pump and systems valves shall be tested at monthly intervals to demonstrate operability. B1 stable actuation setpoints of the motor driven emergency feed pumps shall be tested monthly in accordance with Table 4.1-2, number 21a.

During each refueling shutdown, a verification test shall be conducted to assure that each motor driven emergency feed pump acto-start circuitry actuates upon receipt of an emergency feedwater actuation test signal in accordance with Table 4.1-2, number 21b.

C. MAIN STEAM EXCESS FLOH CHECK VALVES The main steam excess flow check valves shall be tested once every 3 months )

for movement of the valve disc through a distance of approximately one and one-half inches. These valves will be tested through full travel distance during each refueling interval.

D. FEEDHATlR TRIP SYSTEM

1. The following tests will be performcd at each refueling interval:

a. Main Feedwater Pumps Each main feedwater pump, condensate pump, and heater drain pump trip system shall be tested by tripping the actuation circuitry with a safety injection signal coinc? dent with steam generator low pressure signal.

b. Feedwater Valves Each main feedwater regulating valve, main feedwater regulating bypass valve, and emergency feedwater control and isolation valve trip system shall be tested by tripping the valves with a low pressure signal from their respective steam generators.

E. REACTOR COOLANT SYSTEM EHERGENCY VENT SYSTEM At least once each refueling interval during cold shutdown condition:

1. All remotely operated valves shall be cycled

2. flow through each vent path shall be verified Bailli The safety injection system and the containment spray system are principal plant safeguards systems that are normally operable during reactor operation.

Complete system tests cannot be performed when the reactor is operating because of their inter-relation with operating systems. The method of assuring operability of these systems is a combination of complete system >

4.6-4 11/22/88 0315L-RHS