ML20058K754
| ML20058K754 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 06/10/1974 |
| From: | Larson C NORTHERN STATES POWER CO. |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 9102140358 | |
| Download: ML20058K754 (1) | |
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S T A.T E G-P'O W* E. f2e C O LMJP A. N Y" Phrti~ cello,..Mf' masota 55362" J u e rO;1974:
Ne. JJGL.IGeppler...Fmgf-17.Dimtw Directoratee of Regd enry Opemtions-Regien.III' Unitedstates Aemie %r.n mMien 799 Goo:enit Fead Gilm. Ellyn,. I111rois-61037-Ee n Mf...KLypitT:~
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Dccht IE 50-263.-License No.. CFb22.
Ctr }hy Zr;.1974,,.tinile.a reacte startun urrin progcss,. thathicgh..71ttes.p=er-supply f.:ses in. tr.n (231cf tha fc=- (4) Tair. Ste:ca r ine Fclintic t cenitore,.wrs.
feinti ~bicu:r. As a result.cf t6. t: iotected ble.n fcses,. Lot?r menitumesro in.
capable of perfaming thir protecti.u. fcctica.. 'nw 5x:- (4) ?3M3ts:ca Line-Pne1Etien.1Snitors cre. ccmect-A.h a "cr.0-ofet:::r t::iW iegic :. chase-to: 64 thter s.
reacte screm: crd Grc*.nr 1"itolat.icn.ucen datocri~r of hir.A miitticn. it th, r:.:inity Since 6 th in::cr:bla-nenite:S cr2"cennected in. tb '5"' 27ic of cain st0ca li.~;s.
system,. the-associsted protective. functicn. of the r.ain steam lina. re.dic.ti:n rr.cade s was, essentially dirsbiri The failed.~hi:.;h' veit ge pcw:sr zugir fe.cos. ur e rep!vd c=d the rmHntien cm. itors were-ftmeticnallr tasted to Amstrate cperability en.13y Zr;1974.. Do. sie,cific:nce:
ofJt!smalfmetica ms net reic.lcd mtil June 10.19744 'n:2: causo of W.c b1:et.. hi~.h.
c voltage pc;eer: supply fuses. is.c: _.cc17 teing. irs cstigatt.Cani additic=al. prevnitat:.,2 nessures are ant:Leipated pendirg results of ths irri:stigati:n, Y=ursrvery;truly, hYle $?.
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