ML20029D854

Proposed Rev 1E to BVPS Unit 1 IST Program for Pump & Valves.

ML20029D854
Person / Time
Site:	Beaver Valley
Issue date:	03/25/1994
From:	DUQUESNE LIGHT CO.
To:
Shared Package
ML20029D853	List: ML20029D852 ML20029D854
References
PROC-940325, NUDOCS 9405100284
Download: ML20029D854 (6)

Text

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. - 1 OUQUESNE L:GHTCOMPANY Seaver Valley Cower Station Unit i INSERVICE TESTING (IST) PROGRAM FOR PUMP AND VALVES Proposed tavision d Pagesissued- OSC Review Date t

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1. $ N p n % w se u-n y Unit Operstkms Manager Review /Date s .aq.74 3 25 94 Approvea ey Date This " Proposed Revisian" was ande sgsinst Revision 11 of the presset Unit 1 IM W aa.

9405100284 940503 PDR ADOCK 05000334 P PDR

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BVPS.t IST __

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PUMP TESTING OUTLINE m <

_ , . . _ - . - . . m o Pump Pump Code Dwg_ OM No.: 7-3 ~ Sy stem: 7 Cherrucat and volume Control }

Mune: 2A Boric Acxl Transfer Pump Number: ICH-P-2A Class: 3 " $

Dwg. Coord; C-3 - _ _ . _ . _ -4 -

Function: Chemical Shim and Emergency Saration Supply Type: Centrifugal Remarks- See RR1, RR2 and RR3

-- .- -_ g y Parameter 10ST R eg'd Comment s O e (Frequency) ._

g m N NA NA Constant speed inductum motor. d $

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PI 71(0) RR2 Mo instatted instrumentation to measure suction pressure Calculate Ps from the level en the Boric. Acad Sturage O Tank, (Li-1CH-106(161)]. Control Room. x y

7.13 (R) RR2 No installed instrumentation to measure suction pressure Calculate h from the levei in the Bornc Aud Storage g Tank. [LI-1CH-t06(161)]. Controf Room. m O

AP ) X AP as calculated using the pump dsscharge pressure ardcator (Pi-1CH-110]. local, and the calculated Ps Conteel E 4~ Room. y A , X AP is calculated usang the pump discharge pressure irxhcator [Pt-lCH 110). local, and the calculated Ps, Conteof

/ Room. m h C Q i RR3 No snstalled instrumentation to measure flow rate quarterly z -'

o X

3 (R) Flow rate measurement by :n !cd i .e :. r . .c performed at refueimgs 2 gg por%ble albswc h-ou, g V, 7 I (O) RR1 Portable monitoring equipment using velocity unsts $ -

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713 (R) RRt Portable morutormg equipment usang velocity units.

Tb l NA RR1 Annual pump bearmg temperature measurements will not be taken since vibration is measEed [n velocsty uruts M _.. ___, _

L 71(O) X Bearing housing provided with sightglass at od level reservoir, local t

7.13 (R) X Bearmg housing provided with sightglass at oil level reservoir, local

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BVPS-1 IST W z

• m PUMP TESTING OUTLINE m e D a Pump Pump Code Dwg. Det No; 7-3 Systent ? Chemacal and Volume Conte 01 Meme: 28 Boric Acad Transfer Pump Number; ICH-P-28 Class: 3 * *$

D=g. Coord; G-3 _ _ _ _ _ -4 e Function: Chernacal Shem and Emergency M Supply Type: Centnfugal Romerlis- See RRt. RR2 and RR3 $

$ 0 z g Peremeter 10ST Reg'd Comments O e (Frequency) _

g m M- NA NA Constant speed irvkrtum motor. d $

n O 28 2

PR2 No installed instrumentation to insasure suctson pressure Calculate Ps from the level in the Borsc Acad Storage o Pt 72(O) g Tank. [LI-1CH-108(163)L Control Room. l m 7.14 (R) RR2 No insta!!ed instrumentation to rneasure suctmn pressure Calculate Pi from the leve4 in the Boric Acsd Stor age E m

Tank. [LI-ICH-108(163)L Control Room. l O AP sa calculated ussng the pump discharge pressure indicator [Pl-tCH-105A). locat, and the calculated Ps. Control R AP 7.2 (O) X Roorn_ y i 714 (R) X AP is calculated usang the pump discharge pressure irdcator [PI-1CH-105A]. local, and the calculated Pt. Control k m

Room ,C

> :s 4 72(O) RR1 No installed instrumentation to measure flow rate quarterly z "

o 714 (R) X --  ; performed at refueimgs. >

Flow rate measurement by po "rt '. _ d "M,,1 r%bl< 6*nec  : _ r t--

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m V 7.2 (O) RRt Portable monstoring equipment using velocity unats. m -

714 (R) RRt Portable monitoring equipment using velocity unets.

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Tis NA RR1 Annual pump bearing temperature measurements will not be taken sance vtbration as measured in velocaly unals  ;

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L. 72(O) X Bearmg housang provided with sightglass at oil level reservoer, local

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) 7. I4 (R) X Bearing housing provided with sightglass at oil level reservoir, local y

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BV21 ISP IRJGPAM RILIEF REQtRITP 3 Ptmp Mark No(s) . :

QI-P-2A Qi-I'2 B Cbde 'Ibst IYquitunant: Measurement of flow and AP.

Illsis for Relief: The function of the Ebric Acid Transfer pumps is to supply borated water to the suction of the OutrJ i ng/

IDiSI pumps for injection into the RCS. Testing the purps in that flw path is impractical because it could result in a reactor shutd wn. The flw path available to test these ptmps is shwn on the attached figure. There is no installed flow instrunentation in these recirculation lines. During norTul plant operations, the pumps are tested through

[PO-10!-ORBA-1 (2)], the restricting orifices in the minimum flw fixed resistance recitullation lines.

Therefore, the flow is assumed to be fixed and at its reference value. Delta-P is then measured and compared to the acceptance criteria. A review of past test results has shown this test rethod is capable of assessing pump perfornance ard detecting degradation.

In accordance with Position 9 of the GL 89-04, the pumps are also tested through their full-flow recirculation flw paths through [HCV-101-llo (105)],

at a refueling frequency. For the full-flow test, the flow will be measured by a portable ultrasonic flow meter that has toen " wet-flow" calibrated to within the 2% accuracy required by ASME. In order to install the flow meters, however, the insulation must elements be removed from the line and the heat trace rust be movcd away from ktere the transducers arrl tracks will be installed. Moving the heat trace elements places stresses on them, kbich could cause them to break.

The use of the portable flow meter and full-flow recire line was considered for the quarterly test.

It was deterT:tineti, however, that use of the full-flow line was irpractical for quarterly testing. A design change to the plant would be required and additional flow instrunentation would have to be purchased to permanently install the ultrasonic flow meter. In Prry M Revision lE

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cAdition, in order to achieve a substantial flow rate, flow nust be aligned through [HCV-101-110 (105)]. If the punp under test was required for Emergency Boration, the HCV would have to be isolated-in order to ensure enough boric acid solution would be injected into the RCS.

Performing the full-flow test quarterly would not enhance our ability to assess the operability of the pumps enough to ccupensate for the increased cost.

'Iherefore, because of the difficulty in installing '

the flow meter for each test and the cost of haviry it permanently installed, the use of the full-flow recirculation flow path will be limited _ to once during refueling outages.

Alternate Test: Test quarterly through a fixed-resistance. minimum flow recirculation line: assuming flow to be constant .

and neasurity delta-P in CET 1.7.1, 2.

Test at a refueling frequency at " full-flow" through a larger reciru11ation -line, using a portable ultrasonic flow neter in OST 1.7.13, 14.

Separate vibration reference and acceptance criteria values will be _used for the different test conditions.

of the recire and full-flow tests, i

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.- r Boric Acid Transfer Schematic

~1G-4K-1A A

IC/-1G-110 p

%s AG ORBA-1 t

77 75 ) [

J h 1G -P-2A D

[ 1N d k Blender' 106 79 [

1G-4K-1B  ; p O 10V-1G-350.

80 HCV-1C W195 to

[4 DW Boration

%#  ! b m-m-mBa-2 -

78 76 i- [. .

.1G-P-2B 7

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