ML20107B173
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UNITED STATES
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ATOMIC ' ENERGY COMMISSION
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~t' WASHINGTON, D.C. 20545 R
S January 16c 1973 3ccket No.10-219.
i Jersey Central Power & Light Co:pany
_ A E ?: It. R. H. Sims, Vice Pmsident Xadison Avenue at Punch Bowl.Poad Zorristown, New Jersey 07960-
'Gentleren:
Enclosed is the errata sheet for the nodifications to the "Genom1 Infomation Guide for Consideration of the Effects of a i
Piping; System Bmak Outside Containment" which was transmitted to
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you by letter dated December,18,1972.
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Donald J. Skovholt Assistant Dimotor for Operatinc; Reactors Directorate of Licensing Enclosum :
Errata Sheet oc w/ enclosure:
George F. Tr:wbridge, Esquim Shaw, Pittrr., Potts, Trowbridge &.v dden i
a 910 - 17th Stmet, N. W.
EEshing;on, D.. C. ~ 20006 G?U Service Corpomtion A T,': It. Soras-M. Cri= ins Safsty &. Licensing.vanager 260 Cherry Hill Road:
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Parsippany, New'Jemey. 07054 7
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KWRATA SIIEET FOR "CKNERAl. INF0_RMATION HEQUIRED F0_R CONSIDERATTON OF Tile EFFECTS uv A PIPIN0_ _ SYSTEM llREAX OtJTS ADP. _ CONTAINMENT _"
The following lists the changes that have evolved on our initial information request:
1.
Page 2. Item 2--Insert the following in 2. to precede the existing first sentence:
" Design basis break locations should be selected in accordance with the following pipe whip protection criteria; however, where pipes carrying high energy fluid are routed in the vicinity of structures and
-systems necessary for safe shutdown of the nuclear plant, supplemental protection of those structures and systems shall be provided to cope with the environmental effects (including the effects of jet e
Impingement) of a singic postulated open crack at the most adverse locot ton (s) with regard to those essential structurcu and nyutems, the length of the cra,ck being choacn not to execed the critical crack size. The critical crack size is taken to be 1/2 the pipe diameter in length and 1/2 the wall thickness in width."
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Page 2 Item 2(a)(2)--Change nomenclature to read "any intermediate locations between terminal ends where the primary plus secondary strcus intensities Sn *
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Page 4, Item 2.(b)(2)--Change 0.9 (Sh* A 4.
Page 6 Item 7--Add " structural" to read "The structural design loads..."
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Page 7. Item 11. (n)--Add " required" so as to read, " Loss of required redundancy..."
6.
Pate 7.__ item 11. (a)--Dolete "the steam line break" and replace with "that" to read "...the conncquences of that accident..."
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J'ap,; 8,_Ili m 1]. (h)--1(eplace (b) w! Lb the fo))owing:
(h) "Envi ronwnlally incluced f ailurcu cauned by a li ak or rupttire of the pipe which would not of Itucif result in protective action but does disahic protectioa lunctions.
In this regard, a loss of redundancy is permitted but a
loss of function is not permitted. For such situations plant shutdown is required."
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4 Hrrnt o Slicet 14r "Cenoral Informat lon th_'ensf red For Coni 41deration 0f Tlic F.f rectu Of Piping System lireak outside Containment" 4 8.
Pane 8. Item 13--Change wording in the first sentence to read
" Environmental qualification should be demonstrated by test for that electrical equipment required to function in the steam-air environment resulting from a high energy fluid line break."
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