ML20136G113
ML20136G113 | |
Person / Time | |
---|---|
Issue date: | 04/25/1985 |
From: | Asselstine J NRC COMMISSION (OCM) |
To: | Dircks W NRC OFFICE OF THE EXECUTIVE DIRECTOR FOR OPERATIONS (EDO) |
Shared Package | |
ML20136F845 | List: |
References | |
FOIA-85-448 NUDOCS 8506250500 | |
Download: ML20136G113 (1) | |
Text
.
(,
/ %, UNITED STATES
+
' NUCLEAR REGULATORY COMMISSION h, {/ f WASHINGTON. D.c. 20655 e \,***** / April 25, 1985 OFFIC'i OF THE COMMISSIONER MEMORANDUM FOR: William J. Dircks Executive Director for Operations FROM: James K. Asselstine -
SUBJECT:
STEAM EXPLOSIONS A ma,ior consideration in the severe accident risks is the potential for a steam explosion within the reactor pressure vessel to generate missiles that might breach the containment and allow early release of fission products. Over the last year or so, I have been told that 'ere is a growing consensus that this failure mode of t; containment probability. I would appreciate learning *%=e staff now b ieves a ve c 1:w ve e are scientifically accept'ed principles an: tra r - - t es for cciculi m ;:
that probability. If there are, does the ste to putlir ce bases for calculating the . cbability in en archiv3 :, ;- ;viewee ai before making use of ' nat probability? If inere ot, whe a ctaff believe a justifiable asis for calculating the pr :bility w ce available?
cc: Chairran Palladino CO rissioner Roberts Corrir icne- Bernth Commin :ner Zech OPE OGC SECY ACRS
~
k .'.E. ' we Tih.. , / ' 5 f * * * * **
J
- :~J b
,5f&#
m l n= - ocagu 0
< ~ ~ _ - - - - _ - - _