ML20095A775
| ML20095A775 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 03/08/1992 |
| From: | Noonan T DUQUESNE LIGHT CO. |
| To: | |
| Shared Package | |
| ML20095A773 | List: |
| References | |
| PROC-920308-01, NUDOCS 9204210032 | |
| Download: ML20095A775 (4) | |
Text
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DUQUESNE LIGHT COMPANY Beaver Valley Power Station Unit 2 r.
INSERVICE TESTING (IST) PROGRAM FOR PUMP AND VALVES Proposed Revision 2 b Pages issued OSC Review Date X
l97 l3 8()- OSC -
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Unit Operations Manager Review /Date ff ff, W
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Approved by Date This " Proposed Revision" was made estainst Revision of the Present Unit 2 IST Program.
920*210032 920409 l
PDR ADOCK 0500 2
INPS-2 IST (Proposed Revision 2B)
RELIEF RD2UEST 7
Pump Mark flo(s).:
20E*P21A 2RHS*P21B 2IbS*P21B 2CCP*P21B 2W'E*P23B 20lS*P21B 2 SIS *P21A 2RSS*P21C 2CCP*P21C 2SiE*P21A 20iS*P21C 2 SIS *P21B 2RSS*P21D 2NE*P22 2SWS*P21B 2RHS*P21A 2RSS*P21A 2CCP*P21A 2 WE*P23A 2SWS*P21C code Test Requirement: 'Ihe resistance of the system shall be varied until either the measured differential pressure or the measured flow rate equals the corresponding reference value. 'Ihe other tcst quantities shown in Table IhW 3100-1 shall then be measured or observed and recorded.
Basis for Relief:
Plant coMitions may preclude returning a pump to the exact flcurate or same point on the pump curve for each pump surveillance test. Pump flow may either be throttled to approximately the same point on a pump curve or permitted to run at full flow conditions.
For those pumps in syutems dependent on seasonal temperatures, the flow my be permitted to vary :n the purp curve over the pumps normal range of flow values.
In either case, delta-P will be calculated and converted to a developed head for which ASME ranges will be applied.
IhW 3112 provides for multiple sets of reference valuas. A purp curve is merely a graphical representation of the fixed response of the purp to an infinite number of flow.
conditions which are based on some finite number of reference values verified by measurerent Relief is.
therefore, requested to use a pump curve, which will provide an equivalent level of quality and safety in trending purp perforrance and degradation.
l Alternate Test:
A similar flow cordition will be established for each surveillance test (e.g., recirculation flow, normal flow, full llow). A pump curve will be used to compare flowrate with developed head at the flow conditions for each purp listed on Tehle 1.
In addition, each surveillance test will have separate vibration acceptance criteria established for the flow conditions described.
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BVPS-2 IST
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(Proposed Revision 2B)
REIlEF RD2UEST 7
TABLE 1 Flow Conditions for Usity a Pung Curve punps ard SenalAte Vibration Acceptance Criteria 2CHS*P21A(B) (C)
A punp curve ard separate vibr Hon acceptance criteria will be used during normal fl.
. sting quarterly per 20ST-7.4 (5) (6). Flow will be dacttled to approximataly the same poirit on a punp curve with specific vibration acceptance criteria applied during full flow testirq at refueling per 20ST-11.14.
2RHS*P21A(B)
A punp curve will be uwd during normal flow testing at mld shutdown and refueling per 20ST-10.l(2). Since normal flow varies due to Reactor Coolant System heat loads and/or Component Cooling ard Service Water System requirements due to seasoral Ohio River water temperatures, the rest limiting vibration acceptance criteria will be used over this range of flows based on baseline vibration data obtained at various floa points on the punp curve.
2 SIS *P21A(B)
Flowrate aM delta-P will be measured through a fixed recirculation flow path with specific vibration acceptance criteria applied quarterly per 20ST-11.1(2).
A punp curve and separate vibration acceptance criteri.'
will be used during full flow testirn at refueling per 20ST-11.14'.
2RSS*P21A(B) (C) (D)
A p'mp curve with specific vibration acceptance criteria will De used durity full flow testing thru a test line recirculation flow path at refuelirg per 2BVr 1.13.5.
2CCP*P21A(B) (C)
A punp curve will be used during normal flow testing quarterly per 20ST-15.1(2) (3). Since normal flow varies based on Component Cooling System regairements due to seasonal Ohio River water temperatures, the most limiting vibration acceptance criteria will be used over this range of flows based on baseline vibration data obtained at various flow points on the pump curve.
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9 BVPS-2 IST (Proposed Revision 28)
RELIEr PEQUEST 7
TABIE 1 (Continued)
Flow Conditions for Usirn a Pu:tp Curve hims and Separate Vibration Acceptance Criteria 21WE*P22 Flowrate ard delta-P will be measured at a reference speed throuch a fixed recirt:ulation flow path with specific vibration acceptance criteria applial monthly per 20ST-24.4.
Flow will be throttled to approximtely the same point on a pump curve at a reference speed and separate vibration acceptance criteria will be used during full flow testing at cold shutdem ard refuelirg per 20ST-24.4.
2 EWE *P23A(B)
Flowrate and delta-P will be reasured thrcugh a fixed recirthr. ion flow path with specific vioration acceptance criteria applied monthly per 20ST-24.2(3).
Flow will be throttled to approxima%1y the same point on a pump curve and separate vibration acceptance criteria will be used during full flow testing at cold shutdown and refueling per 20ST-24.6.
2SKS*P21A(B) (C)
A purp curve will be used during normal flow testing quarterly per 30ST-30.2(3) (6). Since nomal flow varies based on service W'ter Systen requirements due to seasonal Ohio River water te:tperatures, the most limiting vibration acceptance criteria will be used over i
this range of flows i.ised on baseline vibration data obtained at various fica points on the pump curve.
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