ML19224B321
| ML19224B321 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 04/12/1979 |
| From: | Metropolitan Edison Co |
| To: | |
| References | |
| C-18, TM-0514, TM-514, NUDOCS 7906140486 | |
| Download: ML19224B321 (3) | |
Text
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j TMI DOCUMENTS TV,h If DCCUMENT MO:
COPY MADE ON OF DOCUMENT PROVIDED BY METROPOLITAN EDISON COMPANY.
M Supervisor',' Document Control, NRC 79061404 %
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Superintendent, TMI-2 Con'.rol. Room, TMI-2 On Site Tech Support - Admin Assist.
On Site Tech Supnort Group Leader J.
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C. Arnold F.
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- R. F. Wilson Tech. Support Files
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FINAL CO CI::CENCY PLAN C '--I3 DATE:
4/12/79 0300 fev. /
TITLE:
BREACH OF CO EAIME!C PLRPOSE :
- 1) This guideline will identify that there is a leak in the centain=ent and it will outline actions to correct prob 1c=s for small leaks.
- 2) This guideline will. outline the procedure to be taken if the leakage fro =
the contain=ent requires evacuation of the plant site and/or the control room.
- 3) This procedure assu=es a negative pressure is being =aintained in the contain=ent building.
SYMMONS : 1) The contain=ent pressure and air temperature shall be periodically plotted on graph paper. Any operations which would change the = ass of gas in the containment building shall be noted on this graph.
2)
Increasing pressure in the contain=ent building which is not related to te=perature changes or = ass changes is indicative of leakage through the contain=ent building.
PROCEDURE:1)
A.
Contain=ent prassure less than at=ospheric pressure.
1.
Send personnel to check for leaks:
atpersonnel[b a) atch b) at equip =ent yatch c) at penetrations d) in piping syste=s which penetrate the contain=ent.
2.
Repair any leaks found.
B.
Contain=ent pressure equal to or greater than at=ospheric pressure:
1.
Use radiation survey tea =s to identify source of leakage.
2.
Use radiation survey t'ec=s to ceasure =agnitude of release.
3.
Use aircraft to survey downwind of containment.
4.
Initiate site evacuation if required.
c 5.
Initiate evacuation..of local population if required.
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C.
Cross rupture of contain=ent structurc :' ~
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Initiate site evacuation.
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Initiate evacuation of local popu1ation.
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3.
Initiate containment spray and Na 011 addition to help absorb some of.
' airborne radioactivity.,
4.
Make aircraft surveys downwind of plant to determine extent of release.
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NOTE: Use of the containment purge system in a recirculation mode could possibly reduce the curies /sec release rate in the event that gross leakage fma the contain=ent I
does exist.
So=eone =ay want to analy::e this possibility.
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i Methods to use for leak check are:
1.
Soap solution bubbles i
2.
Sound Detector.
3.
Saran Wrap 4.
H.P.
Instrumentation
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