ML20065D010
| ML20065D010 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 08/12/1982 |
| From: | VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | |
| Shared Package | |
| ML20065C980 | List: |
| References | |
| NUDOCS 8209240367 | |
| Download: ML20065D010 (1) | |
Text
_ _ 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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