ML20072G493

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Proposed TS 3/4.3.4 Re Turbine Overspeed Protection
ML20072G493
Person / Time
Site: Waterford Entergy icon.png
Issue date: 08/19/1994
From:
ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20072G490 List:
References
NUDOCS 9408240342
Download: ML20072G493 (7)
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Text

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1 INDEX l LIMITING CONDITION FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.2 POWER DISTRIBUTION LIMITS 3/4.2.1 LINEAR HEAT RATE........................................

3/4 2-1 l 1

3/4.2.2 PLANAR RADIAL PEAKING FACT 0RS........................... 3/4 2-3 1 3/4.2.3 AZIMUTHAL POWER TILT.................................... 3/4 2-4 i 3/4.2.4 DN8R MARGIN............................................. 3/4 2-6 3/4.2.5 RCS FLOW RATE........................................... 3/4 2-10 3/4.2.6 REACTOR COOLANT COLD LEG TEMPERATURE.................... 3/4 2-11 3/4.2.7 AXIAL SHAPE IN0EX....................................... 3/4 2-12 3/4.2.8 PRESSURIZER PRESSURE.................................... 3/4 2-13 4

3/4.3 INSTRUMENTATION 3/4.3.1 REACTOR PROTECTIVE INSTRUMENTATION...................... 3/4 3-1 3/4.3.2 ENGINEERED SAFETY FEATURES. ACTUATION SYSTEM' INSTRUMENTATION...................................... 3/4 3-13 3/4.3.3 MONITORING INSTRUMENTATION RADIATION MNITORING INSTR M NTATI0N................. 3/4 3-28 INCORE DETECT 0RS..................................... 3/4 3-34 SEISMIC INSTRLSENTATI0N. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/4 3-35 s METEOR 0 LOGICAL INSTRUE NTATI0N....................... 3/4 3-38 REMDTE SNUTDOW INSTRLMENTATION. . . . . . . . . . . . . . . . . . . . . . 3/4 3-41 ACCIDENT M NITORING INSTRUMENTATION.................. 3/4 3-44 CNEMICAL DETECTION SYSTEMS........................... 3/4 3-47 LOOSE-PART DETECTION INSTRUMENTATION................. 3/4 3-54 EXPLOSIVE GAS MDNIl0 RING INSTRUMENTATION............. 3/4 3-60 3/4.3.4 TURBINE OVERSPEED PROTECTION............................ 3/4 3-68 9408240342 940819 PDR ADOCK 05000382 P PDR WATERFORD - UNIT 3 V Amendment No. 50,68

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INSTRUMENTATION 3/4.3.4 TUR8INE OVERSPEED PROTECTION LIMITING CONDITION FOR OPERATION 3.3.4 At least one turbine overspeed protection system shall be OPERABLE.

APPLICABILITY: MODES 1, 2*, and 3*. 1 l

ACTION: )

a. With one stop valve or one control valve per high pressure turbine '

steam lead inoperable and/or with one reheat stop valve or one reheat intercept valve per low pressure turbine steam lead inoperable, restore the inoperable valve (s) to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br />, or close at least one valve in the affected steam lead or isolate the turbine from the steam supply within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

b. With the above required overspeed protection system otherwise inoperable, with 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> isolate the turbine from the steam suppb.

SURVEILLANCE REQUIREMENTS 4.3.4.1 The provisions of Specification 4.0.4 are not applicable.

4.3.4.2 The above required turbine overspeed protection system shall be demonstrated OPERA 8LE:

a. At least once per 31 days by cycling each of the following valves

~

through at least one complete cycle from the running position.

1. Four high pressure throttle valves..
2. Four high pressure governor valves.
3. Six low pressure reheat stop valves.
4. Six low pressure reheat intercept valves.
b. At least once per 31 days by direct observation of the movement of . I each of the above valves through one complete cycle from the running 1 position.

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c. At least once per 18 months by performance of a CHANNEL CALIBRATION on the turbine overspeed protection systems. ,

d.' At least once per 40 mont.hs by disassembling at least one of each of  !'

the above valves and periorming a visual and surface inspection of valve seats, disks and stems and verifying no unacceptable flaws or corrosion.

e. At least once per 40 operating months by inspecting the installed j light low pressure turbine discs, and at least once per 60 operating '

months by inspecting thei installed heavy low pressure turbine discs.

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WATERFORD - UNIT 3 3/4 3-68 Amendment No.30 1

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A INSTRUENTATION BASES 3/4.3.3.10 This section has been deleted.

3/4.3.3.11 EXPLOSIVE GAS MONITORING INSTRUMENTATION This instrumentation includes provisions for monitoring (and controlling) the concentrations of potentially explosive gas mixtures in the WASTE GAS HOLDUP 4

SYSTEM.

3/4.3.4 TUR8INE OVERSPEED PROTECTION This specification is provided to ensure that the turbine overspeed protection instrumentation and the turbine' speed control valves are OPERABLE and will protect the turbine from excessive overspeed. Protection from turbine excessive overspeed is required since excessive overspeed of the turbine could l

generate potentially damaging missiles which could impact and damage safety related components, equipment, or structures.

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l l WATERFORD - UNIT 3 B 3/4 3-4'- Amendment No. 68 i-1

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NPF-38-157 ATTACHMENT B l

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1 INDEX LIMITING CONDITION FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.2 POWER DISTRIBUTION LIMITS 3/4.2.1 LINEAR HEAT RATE....... .. .. ... . . . . .... .. . ........ 3/4 2-1 3/4.2.2 PLANAR RADIAL PEAKING FACTORS... ......... ... .................. 3/4 2 3 3/4.2.3 AZIMUTHAL POWER TILT.. ........... .......... . ................. 3/4 2 4 3/4.2.4 DNBR HARGIN. ..... ..... ... ............................. ...... 3/4 2 6 3/4.2.5 RCS FLOW RATE....................... . .... . . .. . .. 3/4 2-10 3/4.2.6 REACTOR COOLANT COLD LEG TEMPERATURE............... ............. 3/4 2 11 3/4.2.7 AXIAL SHAPE INDEX.......... .. .. . . . . .... ....... ...... 3/4 2-12 3/4.2.8 PRESSURIZER PRESSURE.......... ............... ..... ........... 3/4 2 13 3/4.3 INSTRUMENTATION 3/4.3.1 REACTOR PROTECTIVE INSTRUMENTATION............................... 3/4 3 1 3/4.3.2 ENGINEERED SAFETY FEATURES ACTUATION SYSTEM INSTRUMENTATION.............................................. 3/4 3 13 3/4.3.3 MONITORING INSTRUMENTATION RADIATION HONITORING INSTRUMENTATION ......................... 3/4 3 28 INCORE DETECTORS.... ................................... .... 3/4 3 34 REMOTE SHUTDOWN INSTRUMENTATION .............................. 3/4 3-41 ACCIDENT HONITORING INSTRUMENTATION .......................... 3/4 3 44 CHEMICAL DETECTION SYSTEMS ................................... 3/4 3 47 LOOSE-PART DETECTION INSTRUMENTATION ......................... 3/4 3 54 EXPLOSIVE GAS HONITORING INSTRUMENTATION. ............... .... 3/4 3 60 3/413v4 TURBINE-0VERSPEEDJROTEGTION . . . . . . . . . . . . .... ....... .... 3/4-F68 WATERFORD - UNIT 3 V

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WATERFORD U!dT 3 3/4-348 AME4G4E4F "O 20 )

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l INSTRUMENTATION BASES 3/4.3.3.11 EXPLOSIVE GAS MONITORING INSTRUMENTATION This instrumentation includes provisions for monitoring (and controlling) the concentrations of potentially explosive gas mixtures in the WASTE GAS HOLDUP SYSTEM.

3/-i 3 A REB 14E-OVERSPEED PROTECT!G4 This-sfes444 cation is provided to ensur-e4 hat-the4wbine overspeed protection instrwatat4cn-and the turbir:e speed centrol--v4hes-are OPEPABLE and ' "' protect the turbine-from-e*cessive overspeed. o rotection # rom-turbine excessive O';erspeed is requir-ed since execci"e everspeed of-the4ur449e-celd generate potentially damag49 missiles whktMeuld-impast-and drage safety related components--equipment. Or strestwn 4

WATERFORD - UNIT 3 B 3/4 3-4 AMENDMENT NO, 680

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