ML022400843

DB-OP-02000, Revision 06, Attachment 7: Transferring LIP Suction to the Emergency Sump

ML022400843
Person / Time
Site:	Davis Besse
Issue date:	08/27/2002
From:	Douglas Simpkins FirstEnergy Corp
To:	Chung J Office of Nuclear Reactor Regulation
References
FOIA/PA-2002-0229
Download: ML022400843 (3)

Text

295 DB-OP-02000 Revision 06 ATTACHMENT 7: TRANSFERRING LPI SUCTION TO THE EMERGENCY SUMP WARNING: ATTACHMENT 7 Some areas of the Auxiliary Building may experience extremely high radiation levels. Minimizing the time spent in these areas will reduce the dose received. The following route is required for closing the breakers for DH7A, DH7B, DH9A, DH9B and HP31.

Failure to follow this route could result in a dose significantly higher than the projected 2.0 rem.

Section 1. Action to close breakers for DH7A, DH7B. DH9A. DH9B. and HP31 This portion of the Attachment will normally be performed by an Operator with the Procedure in Hand.

1.

Obtain dosimetry for entering the Auxiliary Building.

2.

Enter old RCA entrance Auxiliary Building 603 elevation.

3.

Move through Chem Lab Room 424.

4.

Go to F lIB located in Fuel Handling Storage Room (Room 405)

5.

Close Breaker BF 1148, DH7A.

6.

Return down Passageway 404 and 411 to southeast stairs near elevator.

-7.

Descend stairs to 565 elevation.

8.

Go to F1 ID located in Passageway 227 south of Makeup Pump Room.

9.

Close Breaker BF 1142-DH9A.

10.

Continue down passageway toward Makeup Pump Room and over stairs ("Pygmy Pass") to BWST Heat Exchanger Area.

11.

Down Passageway 209 to Aux Building Central Stairs.

12.

Descend to bottom of stairs and exit into ECCS Train 1 room.

-13.

Descend stairs to BWST pipe tunnel.

14.

Go to F1 IE in the BWST pipe tunnel.

15.

Close Breaker BF1 194, HP31.

16.

Return to Aux Building Central Stairs.

-17.

Climb stairs to 565 ft elevation.

18.

Go to El IA in Passageway 209.

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LUUl 11 ;40 41+/-JO.0U0b UNJUI1 296 DB-OP-02000 Revision 06 ATTACHMENT 7: TRANSFERRING LPI SUCTION TO THE EMERGENCY SUMP (Continued)

HAGE 02 Close Breaker BE 1157, DH7B, Close Breaker BE 1112, DH9B.

Go down Passageway 209 to Aux Building Southwest Comer Stairs.

Climb stairs to 585 Elevation (Fuel Handling Train Bay).

Exit Door 301 to outside.

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19.

20.

-- 21.

22.

23.

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. 140 4O1OI" 297 DB-OP-02000 Revision 06 ATTACHJMENT 7: TRANSFERRING LPI SUCTION TO THE EMERGENCY SUMP (Continued)

When the BWST level reaches 9 feet, attempt to transfer the suction of the LPI and CS Pumps to the emergency sump as described below. Continue the attempt until-the transfer is complete. The annunciator "BWST LOLO LVL, XFER TO EMER SUMP" (5-3-A) may provide an indication to the operator that the BWST is at the level where the transfer can be completed, however do not rely on the annunciator as an indication of BWST Level.

Section 2. Suction Transfer The SRO shall direct performance of this section or the Attachment.

1.

Verify BOTH MU Pumps are stopped.

a MAKEUP PUMP 1 a

MAKEUP PUMP 2

2.

Press OFF and transfer BOTH MU Pump Suctions to the MU TANK.

a MU 6405 a

MU 3971

3.

Verify Section I of this attachment, Actions to close breakers for DH 7A, DH 7B, DH 9A, DH 9B and HP 31 has been completed.

4.

Block SFAS incident level 2 for the following valves:

DH7A 0

DH9A a

DH7B DH9B

5.

Press open for DH9A AND DH9B using HISDH9A and HISDH9B.

6.

Check DH7A and DH7B start to close as DH9A and DH9B start to open. If an auto closure did not occur, do not manually close DH7B (DH7A) until DH9B (DH9A) is open.

7.

Verify that the transfer is complete by checking the indicating lights on DH9A and DH9B and DH7A and DH7B and by checking that the low pressure injection flow was not significantly changed.

8.

IF CS Pumps are operating, THEN verify CS Discharge Valves CS 1530 and CS 1531, go to the THROTTLE position.

9.

Verify BOTH HPI Pump Minimum Recirc Valves are closed:

HP31 HP 32

10.

Determine CTMT Wide Range Level LI 4594 and LI 4595 and annotate readings on Table 3, Containment Monitoring and Control, Initial Readings.

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