ML20071G211

Sys 80+ Emergency Operations Guidelines, Replacement Pp

ML20071G211
Person / Time
Site:	05200002
Issue date:	06/28/1994
From:	ABB COMBUSTION ENGINEERING NUCLEAR FUEL (FORMERLY, ASEA BROWN BOVERI, INC.
To:
Shared Package
ML20071G099	List: LD-94-047, Forwards Replacement Page for System 80+ Emergency Operations Guidelines ML20071G211
References
PROC-940628, NUDOCS 9407120107
Download: ML20071G211 (1)

Text

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s SYSTEM 80 + '" TITLE APPENDlX B LOWER MODE OPERATIONAL

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O EMERGENCY OPERATIONS GUIDELINES Page 8 of " Revision 5.3.3 Isolation (closure of a containment isolation valve) in the non-operating SCS loop can reduce the possibility of an inadvertent draindown to the RCS.

5.3.4 Operations directly affecting the reactor vessel pressure boundary, i.e. In-core Instrumentation Seal Table evolutions, shall be prohibited during mid-loop operations.

5.3.5 Operational procedures are established to rapidly close specified containment -

penetrations. Personnel trained in these procedures are available to execute the procedures as required by the plant operating mode.

5.3.6 Disassembly and removal of the reactor vessel head should be avoided when mid-loop operation is planned and these t.volutions affect the operability of the high resolution level instrumentation utilized for determining RCS water level in the hot leg region.

5.4.0 OPERATIONAL GUIDANCE 5.4.1 Verify RCS vent path established per Technical Specification (3.10.3).

5.4.2 Verify that the shutdown cooling / containment spray cross connection isolation valves are administratively closed.

5.4.3 Perform the RCS drain procedure to lower RCS level to the desired reduced inventory elevation identified below:

Scheduled Maintenance Activity RCS Elevation S/G cold leg nozzle dams [ ]

S/G hot leg nozzle dams [ ]

RCP seal housing removal DVI nozzle 2A or 2B valve [ ]

maintenance O

i APPENDIX B B-8 ABB CE SYSTEM 80+*

06/17/94

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