ML20035H561
| ML20035H561 | |
| Person / Time | |
|---|---|
| Site: | 05200001 |
| Issue date: | 04/30/1993 |
| From: | GENERAL ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20035H465 | List: |
| References | |
| NUDOCS 9305050273 | |
| Download: ML20035H561 (3) | |
Text
- mp 30 93 ' 03:20a1 c E to:LEiR BLIG J P. 2 '3
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SLC System l
3.1.7 i
i SURVEILLANCE REQUIREMENTS (continued)
SURVEILLANCE FREQUENCY
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SR 3.1.7.)
Verify Lach SLC subsystem manual ower 31 days operated,9 and autcmatic valve in the flow path that is not locked, sealed, or 4
otherwise secured in position is in the correct position, or can be aligned to the j
correct position.
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SR 3.1.7.h V ify each pump develops a flow rate In accordance 21.2; gg: at a discharge pressure with the i
t e 1300 psig.
Inservice t
F 6. D K 9 [C S b' N
rog or 92 days l
t 2
7
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i verify FEY thE;;h $nc SL$"wblysE[from'q'Sh.ths e l
SR 3.1.7.)
5 a-MA60tRES pump into reactor pressure vessel.
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l' SR3.1.7.(
Verify all heat traced piping between 18 nth storage tank and pump suction is unblocked.
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i Once within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after i
solution j
v temperature is restored i
within the i
limits'of
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r[ Figure c 3.1.7-1F j
l (continued)'
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SLC System B 3.1.7 j
i BASES 6
L SURVEILLANCE 59 3.1.7.Y (continued)
REQUIREMENTS confims one point on the pump design curve, and is indicative of overall performance. Such inservice inspections confim component OPERABILITY, trend performance, and detect incipient failures by indicating i
abnomal perfomance. The Frequency of this Surveillance is d in accordance with the Inservice Testing Program or 92 days >
1 7
e SR 3.1.7.$andSR 3.1. 7. 9' These Surveillances ensure that there is a functioning flow path from the boron solution storage tank to the RPV, i
iaehdinW"H mg f an explesivs valv:-
'h: rcale;c;;at su rge f o r Li 41.3 i.e, sl w ; ;Ml' b: 'rs ?" ::m manwfistwicd-balih ai the uns fi7id 07 7C Z:th;T l a t C,5 tMt hei bsso usiwiT;ru by havud enc Of th t betch a ?:c h
- fully " r:d. The p=p end -,,l.. M 'v el vt tasted-notrhi be aiternatec sucn that bue c;;pl:te #ler path are testad--every 36 enths, et :lterati '; IS =r.th %: rvels.
The-Swve441:nre =>y be perfe-ci in separate t:p: to present in betinn harwinto th; RP'I.
An acceptable method for verifying flow fromthepum/totheRPVisto ump i
4E demineralized water from a test tank rough SL pdi. system and into the RPV. The Frequency is based on the need to perform this Surveillapce under the conditions that apply during a plant putage and the potential for an unplanned transient jif the Surveillance were performed with the reactor at power. Operating j
experience has shown these components usually pass the Surveillance test when perfomed at/the 18 month Frequency; therefore, the frequency was concl ed to be acceptable from a reliability standpoint.
ggpus t w s iwrEK v A L Demonstrating that all heat traced piping between the boron solution storage tank and the suction inlet to the injection pumps is unblocked ensures that there is a functioning flow path for injecting the sodium pentaborate solution. An acceptable method for verifying that the suction piping is unblocked is to pump from the storage tank to the test tank.
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The 18 month Frequency is acceptable since there is a low probability that the subject piping will be blocked due to precipitation of the boron from solution in the heat traced piping. This is especially true in light of the daily (continued) p BWR71i STS B 3.1-42 Rev.
O, 00! 0/92-
i 4 < TRANSACTION REPORT >
04-30-1993(FR1> 13!16 i
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E RECEIVE J
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DATE TIME DEST irJJ TIOf J STATIOf4 PG.
DURAT.ICN T10DE RESULT 11995 4-30 11:14 406 525 1687 3
O*01*S5" F 1tJE. E OK i
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