ML19319C178
| ML19319C178 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 10/30/1972 |
| From: | Sampson G TOLEDO EDISON CO. |
| To: | Deyoung R US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML19319C173 | List: |
| References | |
| NUDOCS 8001310533 | |
| Download: ML19319C178 (1) | |
Text
,^,
O V.
v
(
/
O w/
! ToLECO D 33bbN GLENN J. san'esoN v<. pr...e.nc, no..,
October 30, 1972 Mr. R. C. DeYoung U.S. Atomic Energy Co==ission
'w*ashington, D.C.
205h5
Subject:
Docket No. 50-3h6 Effects of Non-Category I (Seismic) Equipment Failures
Dear Mr. DeYoung:
his letter is in response to your correspondence, dated September 26, 1972, relative to the subject.
Review of non-Class I (seismic) cc=ponents in the Davis-Besse Huclear Power Station design discloses no condition whereby a failure in the condenser circulating water system would adversely affect nuclear safety-
/
i related equipment, however, potential areas where non-Class I component I
t failure might adversely affect the performance of nuclear safety-related equipment were indicated.
Potential areas include fire protection system piping which could adversely affect penetration room equipment performance.
Further investigation is required in order to fully evaluate the extent of the interactions of the systems involved, and to deter =ine suitable corrective action. Upgrading of certain non-Class I piping within the penetration roo= has begun. Details of our findings, and corrective action being taken, can be submitted to you within 90 days.
Yours very truly,
,-r u
',y 07?'* &
GJS:ed g /'.
- gie'
.gb
.f,, V ~~
-N b5
- N' '- l l
4,-
a
\\-
8:C'-
r,,
k' f
t, '
7 3
,bh
-~.
f-i l'
O 1
%,/
7 Ri
, \\
s g >,
\\
i
%. s THE TOLEDO ED! SON COMPANY EDISON PLAZA 300 MADISON AVENUE TCLEDO. CHIO 43652 8001310 f33