ML19224C009
| ML19224C009 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/07/1979 |
| From: | Wilson R GENERAL PUBLIC UTILITIES CORP. |
| To: | Kunder G GENERAL PUBLIC UTILITIES CORP. |
| References | |
| NUDOCS 7906280164 | |
| Download: ML19224C009 (1) | |
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Kecommendations for TMI c Operation
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GPU '<emo to G.
Kunder from R. F. Wilson, " Recommended Changes in TMI-2 Operating Point," dated "ay 7, 1979 Step 5 of the reference involves taking the pressuricer solid to benchmark level and to measure solid leak rate.
Thi.; memo provid es supplemental recoc-mendation for Step 8 of the reference.
At the completion of Step 7 of the reference (i.e.,
system at 500 psi 50 psi) the reactor system should be monitored for approximately 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> to ensure stability of reactor parameters (THOT, TCOLD' I STEA", letdown flow, incore thermocouple noise and temperature, reactor _ T -- A loop).
If all parameters are stable, it is then recommended that the pressuriner be taken solid per Procedure Z-63.
Atter taking the pressurizer solid, the system should be retained in the solid made f or appro>:imat ely 2 days.
The purpose for remaining solid is to (a) obtain operating familiarity with the plant solid and (b) wake an accurate determination of primary system leak rate in the solid condition, 500 psi.
Suppler.2 ental recommendations will be provided to you at tne completion of the 2 day period whether to remain solid or to redraw a bubble in the pressurizer.
R
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R, Arnold J. Herbein J.
DeVine L. Elac J. Logan D. Vollmer - NRC G. Kulynych - BG' GPU Tech Support File
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