ML19274F055
| ML19274F055 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 05/30/1979 |
| From: | Oubre R SACRAMENTO MUNICIPAL UTILITY DISTRICT |
| To: | |
| References | |
| PROC-790530, NUDOCS 7906120268 | |
| Download: ML19274F055 (1) | |
Text
A, e
,,_ Tog, Mr. Dan Garnec FROt:
R. P. Cubre' I
~
U. S.. Eclear Regulatory Commission Rancho Seco h elearE en. Stat C
ATTN Sandy Israel 5-30-79 7-AUXILIARY FEEDWATEE TEST SPECIFICATION 5-30-79
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- s-f PUEF05E 1.
Verify demign flowrate to each steam generator at design bar.k pxwasura. '
. 2 2.
' verify ability to establish design flowrats with both a-414%. feed-1 water control valves electrically failed.
7, TEST HETHOD 1.
Back pressure equiumamot to the steam generator pressure at the satpdirst of the lowest set of relief valves in addition to calculated line losses -
util ha established using a walve downstream of the control valve.
Vith the er,ntrol valve full open, the flowrate will be emi-* dated based on level chmuga in the ca=A*a==te storage tank. The "A" steam generator' will be suppliad by Aux 111ary fe=Jwater pump P-319 (motor drives).
The "S" stemma generator will be supplied by a=414=ry feedwetar' pump P-318 with Ars anocor.
y *~
2.
~W1ch the penetration isolation valves throttled (as above) and ens auxiliary feedmar pump smaing. the electrical control signal will be removed fro s the auxiliary feedwater contral valves.
Tha safsty-grade auxiliary feedwater bypass valve (s) will be jogged open to establish desism flowrate (>780 spa combined) to the steam asserators.
Operator (s) will them be Aimpatched to close the auxiliary feedwater control valves.
Flow'wil.e. be =aintained by jogging dpen the safety grade auxiliary feedwater valw(s) as requized to maintain design flow rat m.
a ACCEPTAMCE CRITERIA 1.
Flourate to **A" staan senecator sh=11 ha at 1samt 750 sps at design back pressure (itam ana).
2.
Plowrate to "B" ateam generator shall be at lasst 780 EPs at design back pressure -(item one).
3.
Total flow to both steam generators shall be estahIished by "throttidspg
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safety grade auxiliary f-- batar valves at-780 +156 spu.
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