ML20024C788
| ML20024C788 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/16/1978 |
| From: | Dunn B BABCOCK & WILCOX CO. |
| To: | Taylor J BABCOCK & WILCOX CO. |
| References | |
| TASK-02, TASK-03, TASK-07, TASK-2, TASK-3, TASK-7, TASK-GB GPU-0551, GPU-551, NUDOCS 8307130296 | |
| Download: ML20024C788 (2) | |
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.T}ihBAS' DOCK & WILCOX COMPANY 2.J.p.-.a p.
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w' 4#rJ Jim Taylor, Manager, Licensing
[f<b C From 17 " ~
M BertM.Dunn, Manager.ICCSAnalysis(2138)/<n.'yU v
ses m.s Cust.
Fi1e No.
or Ref.
Subj.
Date Operator 5:e=uption of High Pressure Injection February 16, 1978 l n In reviev of =y earlie: =e=o on this subject, dated February 9, 1973, 71 eld Se:vice has recon =anded tha follovd.ug procedure for te==ina:1=g high pressure i=jec:Lon following a.LOCA.
1.
Lov pressure injee:1on has been actuated and is floving at a race in ex-cess of the high pressure injection capability and that'si:ussion has been stable for a period of time (10 minucas).
Same as previously stated.
2.
At X =1= uter following the initiation of high pressure injection, tar-tion is allowed pr vided the hoc lag ta=perature i= dica:1on plus appropri-a:e ins :umes: a=or is more than 50*y belov :he satura: ion ta=,,e:ature conespcudi=g to the reactor coolant systa= pressure less ins: u=ent enor.
I is a time lag to prevent the termination of the high pressure injection famediately followi=g its initia:1on. It requires fur her work to define its specific value, but it is probable that 10 ad utes will be adequate.
The need for the delay is that no =al operati=g condi:fons are vi:hin the abeve criteria and thus it is conceivable tha: the high p; essure in-jection would be te==i=ated duri=g the dad-d=1 phase of a s=all LCCA.
I find that this scheme is acceptable from the standpoin: of proventing ad-verse long range proble=s a:d is easier to imple=ent. Therefore, I wish to modify the procedure requested in my first memo to the one ide=tified here.
es:
Z.W. Svanson D.E. Rev Mff/
B.A. Earrasch E.A. 3ailey l
g For ID J. Kelly
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g,g,g JJt. Derno E.R. Kane (g
J.D. Agar 8
1.L. Pittman J.D. Phd-v T. Scott /
J C0ssEL M T25757
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