ML20065D010: Difference between revisions

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Corrected psge for Septetaba r , 1981 FACILITY CHANGES THAT DID IUT RELUIRE NPC APPRNAL (cxntinued)
D/C 80-88  SLPNARY T SAFETY ANALYSIS This modification provides maintenance isolation capability for work on the steam supply system to the turbine driven AFW pump.
D/C 80-91  Voltage Indication for Seni-Vital Buses                            1&2 This design change installed a voltage indicator at the main control board frcan semi-vital buses to provide the control roczn operator with a continuous indication of semi-vital bus voltage.
The purpose was to meet the requirements of VEPCO Response to NRC Serial No. 485 Itan 21.
SLM4ARY T SAFETI ANALYSIS This modification does not affect the operation of any safety-related equignent. Therefore, there are no safety problems caused by this modificaticn.
D/C 80-92  Alternate Power to Gaitronics System                              1&2 This design change provides an alternate power supply to GAITRONICS Public Address Systen to be available by manually transferring the power supplies.
SLENARY T SAFETI ANALYSIS This nodificaticn to the GAITRONICS Systen was implemented by the use of locally mounted terminal boxes (with barrier strips) having a vital bus supply fran Unit 1 and Unit 2.      This modification does not affect the operation of any safety-related equignent. Therefore, there are no. safety problems caused by this nodification.
D/C 80-94  Change Power Supply Source to F-ll22 and F-2122                    1&2 This design change separates the power sources of the charging flow loop and the loop fill header flow. With a loss of vital bus, the operators can verify the flow of water entering the cooling systen.
StPNARY T SAFETI ANALYSIS This modification to the charging flow loop power source provides additional capability of flow indicaticn in the event of loss to Vital Bus 1-II or 1-III.
D/C 80-100 Retoving Control Function Interlock frce " Hand" Position            2 This design change nodifies the starting circuitry so that the operator can start the contairunent vacuum pump in
                      " Hand" Positicn in case of instrument failure. This will 8209240367 820e12 DR ADOCK 05000280 PDR
                                                                .-.}}

Latest revision as of 10:15, 6 January 2021

Corrected Page for Monthly Operating Repts for Sept 1981
ML20065D010
Person / Time
Site: Surry  Dominion icon.png
Issue date: 08/12/1982
From:
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:
Shared Package
ML20065C980 List:
References
NUDOCS 8209240367
Download: ML20065D010 (1)
v • d • e


Text

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Corrected psge for Septetaba r , 1981 FACILITY CHANGES THAT DID IUT RELUIRE NPC APPRNAL (cxntinued)

D/C 80-88 SLPNARY T SAFETY ANALYSIS This modification provides maintenance isolation capability for work on the steam supply system to the turbine driven AFW pump.

D/C 80-91 Voltage Indication for Seni-Vital Buses 1&2 This design change installed a voltage indicator at the main control board frcan semi-vital buses to provide the control roczn operator with a continuous indication of semi-vital bus voltage.

The purpose was to meet the requirements of VEPCO Response to NRC Serial No. 485 Itan 21.

SLM4ARY T SAFETI ANALYSIS This modification does not affect the operation of any safety-related equignent. Therefore, there are no safety problems caused by this modificaticn.

D/C 80-92 Alternate Power to Gaitronics System 1&2 This design change provides an alternate power supply to GAITRONICS Public Address Systen to be available by manually transferring the power supplies.

SLENARY T SAFETI ANALYSIS This nodificaticn to the GAITRONICS Systen was implemented by the use of locally mounted terminal boxes (with barrier strips) having a vital bus supply fran Unit 1 and Unit 2. This modification does not affect the operation of any safety-related equignent. Therefore, there are no. safety problems caused by this nodification.

D/C 80-94 Change Power Supply Source to F-ll22 and F-2122 1&2 This design change separates the power sources of the charging flow loop and the loop fill header flow. With a loss of vital bus, the operators can verify the flow of water entering the cooling systen.

StPNARY T SAFETI ANALYSIS This modification to the charging flow loop power source provides additional capability of flow indicaticn in the event of loss to Vital Bus 1-II or 1-III.

D/C 80-100 Retoving Control Function Interlock frce " Hand" Position 2 This design change nodifies the starting circuitry so that the operator can start the contairunent vacuum pump in

" Hand" Positicn in case of instrument failure. This will 8209240367 820e12 DR ADOCK 05000280 PDR

.-.

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