Text

Rev 0 to WO4536-01, Performance Contracting,Inc,Eccs Sure- Flow Strainer Data Rept
	ML20249B988
Person / Time
Site:	Brunswick
Issue date:	12/31/1996
From:	Kaufman A; AFFILIATION NOT ASSIGNED
To:	;
Shared Package
ML20249B959	List: BSEP-98-0125, Submits Supplemental Response to NRC Bulletin 96-003, Potential Plugging of ECC Suction Strainers by Debris in Bwrs. Amended Sections Delineated by Rev Bar in Right Hand Margin.No New Regulatory Commitments Contained in Ltr; ML20249B969; ML20249B975; ML20249B988; ML20249C004; ML20249C009; ML20249C013;
References
	IEB-96-003, IEB-96-3, WO4536-01, WO4536-01-R00, WO4536-1, WO4536-1-R, NUDOCS 9806250147
	Download: ML20249B988 (44)
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C.D.L Tese.ical Ncte No. 9612 Performance Contracting, Inc.

ECCS Sure-Flow Strainer Data Report Revision 0 W O453 6-01 December 1996 Prepared by Continuum Dynamics, Inc.

P.O. Box 3073 Princeton, New Jersey 08543 Proj ct Aanager A.

Andrew E. Kaufhlan Authors Andrew E. Kaufman Robert W. Diert!

Richard G. Louderbacx Prepared for Electric Power Research Institute j

3412 Hillview Avenue f-Palo Alto, California 94304 EPRI Project Manager Leonard Loflin Plant Support Engineering 8

9906250147 990619 PDR ADOCK 05000324 G

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ABSTRACT A Performance Contracting, Inc. (PCI) Sure-Flow" strainer was tested under a variety of debds and flow conditions in the Boiling Water Reactor Owners' Group (BWROG) test facility at the EPRI facility in Charlotte, North Carolina. Tne strainer was tested with fibrous insulation, simulated corrosion products, and reflective metal insulation (RMI). This report documents the head loss results frorn the five tests conducted in October 1996.

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CONTENTS 1 iN TR O D U CTlO N................................................................................11 2TESTFAClLiTY..................................................................................2-1 I n s tru rn e n ta tio n............................................................................................... 2 - 1

' Strainer..................................................................................................................2-2 s D eb risi M a t e rials.......................................................................

22 I Summary' of Test Procedures.........

2-3

3. TEST. MATRIX.....................................................................................3-1

'4 TEST DATA '

A

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LIST OF TABLES Table 2-1 Ins trument List........................

.............. 2-2 Table 3-1 PCI Sure-Flow Strainer Test Matrix.................

.31 Table 4-1 Steady State Test Data..

.4-2 3

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- --------- - _--- _J

LIST OF FIGURES Figure 2-1 Schematic of test facility.........................

.2-5 Figure 2-2 Schematic of instrument locations...................

.2-6 Figure 2-3 Photograph of Sure-Flowm Strainer........

.2-7 Figure 2-1 Sketch of Sure-Flow Strainer......

. 2-8 I

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__._________________________m

1 INTRODUCTION In the event of a Loss of Coolant Accident (LOCA) in a Boiling Water Reactor (BWR) nuclear power plant, insulation installed on piping can reach the wetwell which supplies water to the Emergency Core Cooling System (ECCS). This insulation combined with corrosion products and other debris can migrate and block strainers installed on suction lines supplying the ECCS pumps. Relatively small amounts of glass fiber insulation combined with corrosion products have been shown to result in significant pressure drop across a strainer screen. An alternate suction strainer design, the Sure-Flow strainer, was provided by PCI to m

evaluate its performance under different flow and debris loads. From 28 through 30 October 1996, Continuum Dynamics,Inc. conducted a series of tests on this strainer.

Tests were conducted at the Electric Power Research Institute Non Destructive Evaluation Center in Charlotte, North Carolina.

Testing was conducted following the Plan for Testing PCI Strainer, Revision 1,2S October 1996 (Ref.1). Test procedures and materials essentially duplicated BWROG procedures and materials for strainer testing.

I 1-1

1 Tes: Fuility 2-TEST FACILITY A schematic of the test facility is shown in Figure 2-1. De strainer was mounted horizontally to a 24 inch tee in a nominally 50,000 gallon vessel. Typically, the vessel was filled with 40,000 galloru of water. Two centrifugal pumps capable of producing 10,000 GPM were used to provide system flow controlled by valves on the pump outlets. The flow returned to the vessel through a venturi and then through a pipe whose exit was centered in the vessel and directed down toward the Roor.

This pipe orientation prevented material from settling on the vessel floor.

Tne piping configuration also allowed the strainer to be backflushed. Backflush flowrates up to 5000 GPM can be obtained, but back!Iush duration is often limited because debris from the vessel can be pulled inside the strainer because of the location of the backflush inlet pipe (see Figure 2-1).

Instrumentation A schematic (illustrating the instrument locations is shown in Figure 2-2. The head loss across the strainer and debris bed is measured by a Rosemount 1151 smart differential pressure transmitter that is connected to the blind flange of the strainer tee. The flow rate is measured by the venturi in the retum leg of the piping and another a Rosemount 1151 smart differential pressure transmitter. The outputs of these transmitters were connected through Sensatec GMA displays and amplifiers (0.2% accuracy) to a computer controlled DATAQ DI-22012 bit data acquisition system. Fiber, simulated corrosion products and RMI were weighed on an Ohaus model DS10L scale and water temperature was measured with a thermometer.

Table 2-1 lists the instruments used in the test program.

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Test Facility Table 2-1 Instrument List

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Symbol Instrument Range Accuracy Comment DP1 Differential 0-650 inches +/- 1 inch of Strainer head Pressure of water water loss.

l Transmitter DP3 Differential 0-250 inches +/- 0.4 inches Used with Pressure of water of water venturi Transmitter

(+/- 300 GPM accuracy).

A/D Data 0-5 volts

+/.025%

Record Acquisition pressure and flow data.

T1 Thennometer 35-120

+/- 3 degrees W ater degrees F F

temperatur.e commercial grade.

B1 Balance 0-100 pounds

+/- 0.5 Weigh debris pounds commercial grade.

(

s Strainer A photograph of the PCI Sure-Flow" strainer is shown in Figure 2-3. A sketch of the strainer showing some important dimensions is shown in Figure 2-4.

Debris Materials NUKONS Base WoolInsulation was used as the fibrous insulation for this test program. Tne insulation was supplied, prepared and weighed by PCI and supplied in 25 pound bags. Samples of the insulation were collected to provide an estimate of the size dist-ibudon. An analysis of the shredded fibers showed a similar size distribution as was used in the BWROG tests.

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Tes: Fa: Guy Black Iron Oxides obtained from Hansen Engineering, Inc. were used to l

simulate corrosion products with a distribution of 95% Grade 2008 and 5% Grade 9101-N-40 by weight.

Reflective Metal Insulation (RMI) was also used during testing. Stainless steel fails with a thickness of 2.5 mils were supplied by Darchem Engineering, Ltd. The foils were cut into nominally 3/8,3/4,1.5,3, and 6 inch squares and then crumpled l

to simulate RMI debris. The material was purchased and processed by EPRI. Based l

on EPRI documentation, the two smallest size categories were crumpled by the garden / leaf shredder and the remaining sizes were crumpled by hand. The resulting RMI debris was similar to the RMI used in the BWROG tests.

Summary of Test Procedures The test procedures duplicated the test procedures used in the BWROG strainer tests. The procedures are summarized below.

The main test procedure defines the steps necessary to perform one complete test for measuring strainer head loss. The main steps in this procedure include system start up, material addition, data acquisition, flow rate control, backflushing and test temunation. Data acquisition is started before the pumps are tumed on and material is added to the vessel after the flow rate has been established. The time of material introduction is recorded. Tne amount of material added is determined by the test matrix. Simulated corrosion products are always added first and allowed to mix in the vessel before the other debris is added. Simulated corrosion products are added dry, while(shredded fiber is soaked first to ensure it will sink.

Dunng a test the flow rate is maintained at a nearly constant value determined by the test matrix, unless the strainer maximum pressure drop is reached or the maximum pump flow is achieved. After the strainer head loss has reached approximately steady state, the flow rate can be adjusted down and up (a ficw sweep) to obtain head loss at different flow rates, and if required, the strainer can be backflushed. Tne strainer is backflushed by shutting off the pumps and reconfiguring the valves so that pump #2 can pul! water from the backflush line into the strainer. Pump #2 is turned on and then the backilush valve is opened until the backflush gauge reads the pressure corresponding to the desired flowrate.

The flow is then maintained at this flowrate for the desired time. A run is

)

ternunated when the strainer head loss reaches approximately steady state or a de: ermined value of head loss has been achieved (after conducting any required flow sweeps or backflush).

After test termination, a backup copy of the digitally recorded data is made and the ending water temperature is taken.

I Daily procedures are followed to check the differential pressure transducers and I

data acquisiden system. Differential pressure cell eros and known water height i

readings are taken and compared to the transducer output. The output of the data 2-3

Test Facility acquisition system is also checked to insure it is operating correctly and that the instruments are correctly connected. Pe. iodic confidence checks on the scales and thermometer are also conducted as required.

Also associated with each main test procedure is a material preparation procedure which defines how much materialis to be added to the vessel. Tnis procedure defines the methods to identify and quantify the fibrous insulation, simulated corrosion products and other debris to be used for each test. Sampids of fibrous insulation prepared by PCI were taken to characterize its size distribution.

RMI was provided by EPRI in boxes marked with the square feet of area and was not weighed. All material used in the program is identified by a unique number.

Data is stored on disk as voltages from the differential pressure transducers.

Using the calibration curves for each instrument, the voltages are converted to engineering units (either inches of water or gallons per minute). The clean head loss as a function of flow rate is subtracted from each head loss data point to obtain the head loss across the debris bed. The data is plotted in Appendix A as a function of time and approximate steady state values are tabulated in Section 4.

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L Figure 2-4 Sketch of Sure-Flowm Strainer.

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~3 TEST MATRIX o

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. The test matrix is shown below. It was modified from the preliminary matrix L

'shown in the test plan based on FCI requirements i-f Table 3-1 PCI Sure-Flow Strainer Test Matrix L

Run Mass Fiber Mass C.P.

RMI Comments (Ibm)

(Ibm)

.(fee t')

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0 0

0 Clean head loss over full flow range.

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2 25 100 800 RMI test with fiber, debris bed made at l-

'5000 GPM.

o 200, 150,-

0 0

Incremental Material Addition, debris bed was 200, 250, made at 4000 GPM for last addition.

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100 100 O'

Debris bed made at 5000 GPM j

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200 100 0

Bcston CS#$8.3 7:dh test, debris bed made at 4400 GPM and reduced to 4000 GPM.

ine flow sweep at the end of each run was modified to provide additional data

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iJ points for most runs as shown in Section 4 and in Appendix A.

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TEST DATA Table 4-1 summarizes the data collected from the test program. The table contane specific information about each test including run number, run date, flow rates tested, mass of insulation and corrosion products used (if applicable), amount of IB1I, the average water temperature and the steady state differential pressure across the strainer (head loss) for that condition. All of the tabulated head loss -

values represent the head loss across the fiber / debris bed. Tne head loss of the clean strainer has been subtracted (except for the baseline, clean strainer case.)

Plots for each of the runs 'are included in Appendix A. Tne plots show the i

strainer differential pressure and the corresponding flow rate as a function of time.

I Material addition times and other run specific notes are indicated on the plots. Tne strainer differential pressure represents the head loss across the debris bed only,

" clean" head loss has been subtracted out.

Tne dah contained in the tables and the plots in the Appendix have been verified according'to C.D.L Quality Assurance procedures. Notes for each run are provided below.

Run PCl1 i

Tne first run was conducted from 1250 GPM to 10,000 GPM with no debris in the i

tank From these data the clean head loss as a function of flow rate is determined so l

that the clean strainer head loss can be subtracted at any flow rate.

Tnis clean head loss run was conducted with a lower water level than usual to check if air would be sucked in frorn the free surface. The centerline of the strainer i

was 95.5 inches above the tank floor, and the water level was measured at

~.65.3 inches by the DP1 transducer, which was mounted approximately 8 inches above the tank floor. With approximately 55 inches of water above the top of the st ainer, no vortexing (or air being sucked into the strainer from the free surface) j_

was visually apparent over the range of tested flowrates.

1 4-1 b

Test ' Data '.

Run PCl2 f This test _was run with 25 pounds of fiber,100 pounds of corrosion product and 800 square feet of RMI. The RMI was evenly divided into 3/8,3/4,1.5,3 and 6 inch

' square pieces that were crumpled. After the corrosion products were added and allowed toLcirculate the fiber and RMIwere added together.

Run PCl3 -

This test was conducted with fiber alone. The initial increment was 100 pounds, L

subsequentincrements were'50 pounds. Fiber was added after approximately steady state head loss was reached for each increment. The head loss increased essentially.

linearly for each 50 pound increment, see Table 4-1 and Appendix A.

l

. Run L PCl4 ls This test was conducted with 100 pounds of fiber and 100 pounds of corrosion pro' ducts.

Run PCl5 -

This run was conducted with 200 pounds of fiber and 100. pounds of corrosion products. _ Initially, the flow rate was set at 4400 GPM to form the debris bed. The he flow rate was reduced to 4000 GPM to maintain the head loss below the maximum L^~

- allowed for the strainer.

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Table 4-1 l'

- Steady State Test Data Run Date Flow insulationCorrosion RMI Recipe -Head Avg.

Comments 2

l, Rate _

(Ibs)

Products (ft ).

Less H2O (GPM).

(Ibs)

. (in.

Temp H2O)

(o?)

i P Q 1:110/2s.5000 0[6]

69 Baseline clean strainer.

[]- Denotes head loss across clean strainer.

P G 1. 10/2s 1250.

0 [0.2]

69 c,

k

__________.m E

_._.m._

1 Tes: Data Table 4-1 Steady State Test Data

~ Run ' Date Flow insulationCorrosion RMI Recipe Head Avg.

Comments 2

Rate (Ibs)

Products (ft )

Loss HO 2

(GPM)

(Ibs)

(in.

Temp H O)

(=p) 2 PG1 10/23 2500' 0[1]

69

.PG1 10/2s 3750 0[3]

69'

~

PG1 10/2s 6250 0[10]

69 PG1 10/2s 7500 0[15]

69 PG1 10/23 8750 0[20]

69 PG1 10/2s 10000

'0 [24]

69 PG2 10/23.5000 25 100 800 28 70 1

PG2 10/23 2500 25 100 800 11 70 i

PG2 10/23 37$0; 25 l100 800 19 70 PG2 10/2s 6250

.25.

100 800 33 70 j

PG2 10/2s 7500-25-100 800 35 70 1

PG2 10/2s. 8750

.25 100 800 42 70 PG2 10/2s 10000 25 100 800 52 70 PG2 10/23 5000 25 100 800 23-70 Ap increasing slowly.

j PG2 10/2s 5000 25

-100 800 29 70 Approximate steady state value after shutting off pump for one minute and restarting,

~ _ _ _

4-3 L-

Test Data

. Table 4,

Steady State Test Data Run Date' Flow InsulationCorrosion RMI Recipe Head' Avg.

Comments 2

Rate (Ibs)

Products (ft )

Less H2O (GPM)

(Ibs)

(in.

Temp H2O)

(*F)

PC3 10/29 5000 100 73 71 P C 3 10/29 5000 150 121 71 PG3 10/29 2500 150 56 71 PQ3 10/29 3750 150 91 71 PQ3 _10/29 5000 150 119 71 PG3.10/29 5000 200 166 71 PG3.10/29 2500 200 74 71 PC3_10/29 3750 200

.127 71 i

71

- PG3 10/29 5000 200 166 PQ3 10/29 5000 250 214 71

. PC3 10/29 2500 250 100 71 164 71 PG3 10/29 3750 250 t.

PCI3 10/29 ~ 3750 300 194 71 i

PG3 - 10/29 4000 300 200 71 i

PG3 10/29 2500

.300 116 71 j

PG3' 10/29 4100 300 211 71 147 70 j

PG4 10/29 5000 100 100

.PG4 10/29 2500 100 100 65 70

Test Da::

Table 4-1 Steady State Test Data i

Run Date Flow InsulationCorrosion RMI Recipe Head Avg.

Comments 2

HO Rate (Ibs)

Produc:s (ft )

Loss 2

(GPM)

(Ibs)

(in.

Temp H2O)

(=p)

PG4 10/s 3750 100 100 104 70 FG4 lo/s 6200 100 100 177 70 PG4 10/s 6900 100 100 206 70 PG4 lo/s 5000 100 100 144 70 PG5 to/m 4000 200 100 232 71 Removable perforated end plate covered with solid plate for run PG5.

PG5 lo/m 2500 200 100 129 71 PG5 10/m 3000 200 100 157 71 PQ5 lo/m 3500 200 100 200 71 PG5 10/m 4000 200 100

.231 71 h-4-3

5 QUALITY ASSURANCE All quality related test activities were performed in accordance with the Continuum Dynamics, Inc. Quality Assurance Manual, Revision 12 (Ref. 2). Quality related activities are those which are directly related to the planning, execution and objectives of the tests. Supporting activities such as test apparatus design, fabrication and assembly are not controlled by the C.D.I. Quality Assurance Manual.

C.D.I.'s Quality Assurance Program provides for compliance with the reporting requirements of 10 CFR Part 21. All instrument certification and calibration, test procedures, data reduction procedures and test results will be contained in a Design Record File which (upon completion) will be kept on file at C.D.I. offices.

1 I

5-1

6 REFERENCES 1.

Continuum Dynamics, Inc., Plan for Testing PCI SurePlow Strainer, Revision 1, 28 October 1996.

2.

Continuum Dynamics, Inc., Quality Assurance Manual, Revision 12, October 1996.

l 6-1 l

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l DATA PLOTS Plots of head loss across the debris bed and flow rate are s all runs, except PCII, the clean head loss is subtracted from the total meas

. For loss to provide the head loss across the debris bed. Head loss is measure of water and flow rate is measured in gallons per minute (GPM).

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Data Picts Run PC11: PCI SUre-Flow Strainer No Materials Used in Test

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2 5. --

,E Z 2 0 --

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5 ; 25 2.

.t U5 5 E10--

pa 52 G1 5. --

0 0

5 10 15 20

/

Time (minutes)

~12000 -

r s

10000 l

-~

I J

[ 8000I 2

$ 6000 1

c:

I 3

i S

40004l-L l

2000 0

0 5

10 15 20 Time (minutes)

Figure A-1 Head loss and flow rate versus time for run FCII.

A-1

D::2.=le::

i Run PCl2: PCI Sure-Flow Strainer i

25 lbs Nukon insulation i

100 lbs Corrosion Products 2

800 ft RMI 60 -

100 lbs corrosion products added 3, 50 -

O c

25 lbs Nukon and 40 -

2 l

o,.

800 ft RMI i

5O 3 0.L added F

I C

20 -

[

_ce Di '

1 0 -l Y Y l

l 0

l--_

l 0

20 40 60 80 100 120 l

Time (minutes) l l

12000 r Pump shut off at l

t 5000 GPM i

for - 1 minute and 10000 then restarted 1

l

['m 8000y 8

3 c

$ 6000 -

c i

L,_

1 9

f

.9 4000 l

2000 -

3 O

l i

0 20 40 60 50 100 120 j

Time (minutes)

)

. : pare a-2 nea: ess anc tow rare. -:3us :ae rc: = <tc.

_\\. 7

Data Plots Run PCl3: PCI Sure-Flow Strainer 100, 150, 200, 250, 300 lbs Nukon Insulation No Corrosion Products h ' @ added 100 lbs Nukon 250-h h

h 50 lbs Nukon g

added i 0 200 '~

y y

s i

t-r E E 150 -

y C e

}

E51 0-Y wa

t 5 0 -l en Y

0 O

50 100 150 200 250 300 Time (minutes)

I 6000 -

[

5 000 p'-

-,se - y ', :, :-,

5

. 4 0 0 0 -

I g

-.i.j P

j

$ 3000 --

3.9 2000 --

L 1000 -

1 0

0 50 100 150 200 250 300 Time (minutes)

Figure A-3 Head loss and flow rate versus time for run FCI3.

A-4

)

l.

Da:2 P! :s.

L Run PCl4: PCI Sure-Flow Strainer r

100 lbs Nukon Insulation 100 lbs Corrosion Products 250-

'100 lbs corrosion products added

_.a

o 200'-

c 100 lbs Nukon added-ev

~E I 2:: ::e ;150 --

C I ri

$100+

m

[G

{ E F 0,Y Y u-

.i O

20

-40 60 80 100 120.

Time (minutes)

Pump shut off at 5000 GPM for L

8000lT

~

-1 minute and then restarted Pump shut off at r

5000 GPM for 7000 l

-3: minutes and.

[\\-

then restarted I

6000 r

1 j

l y

y

.$:5000 '( ^- ^ = = -

f~

$ 4000 --

-=.

4

'$ _3000 --

E 2000 --

1000 --

0' 20 40 60 80-100 120 Time. (minutes)

. Figure A-4 -Head loss and flow rate versus tLw for r-Pr" A-5

Dat: Plots

~

Run PCl5: PCI Sure-Flow" Strainer 200 lbs Nukon insulation 100 lbs Corrosion Products Perforated End Plate Covered with Solid Plate 250 "100 lbs corrosion products added f $200 --

200 lbs

?E

Nukon

$ g 150 --

added l

C o

) $ 100 -

_m SE Gic-5 0 '-

YY g

0 20 40 60 80 100 Time (minutes)

Pump shut off at 4003 GPM for -

)

~

5000 --

i

\\

4500 E,,,, E-

\\

1 q

4 4000 -

'na-a-

$ 3500 --

c.

2,3000 r

$2500h C

I 3 2000 --

0 1

' 1500 -

J l-1000 -

500 -

'O' 0-20 40 60 80 100 Time (minutes)

Figure A 5 Head loss and flow rate versus time for run PCI5.

A-6

r RSEP, Uzit Nos. I and 2, ECCSSuction Strainer Replacement Project NRCBulletin 96-03 FinalReport l

Appendix C BSEP Unit Nos. I and 2 Replacement Suction Strainers Design Drawings Drawings:

1.

Strainer Location Drawing, Torus Plan View 1

2.

Equipment Assembly Drawing, Suppression Pool Strainer 1-E11-S1, RHR Pumps 2A & 2C 3.

Equipment Assembly Drawing, Suppression Pool Strainer 1-E11-S2, RHR Pumps 2B & 2D 4.

Equipment Assembly Drawing, Suppression Pool Strainer 1-E21-S2A, Core Spray Pump Suction Line A 5.

Equipment Assembly Drawing, Suppression Pool Strainer 1-E21-S2B, Core Spray Pump Suction Line B 6.

Equipment Assembly Drawing, Suppression Pool Strainer 2-E11-S1, RHR Pumps 2A & 2C 7.

Equipment Assembly Drawing, Suppression Pool Strainer 2-E11-S2, RHR Pumps 2B & 2D 8.

Equipment Assembly Drawing, Suppression Pool Strainer 2-E21-S2A, Core Spray Pump Section Line A q

9.

Equipment Assembly Drawing, Suppression Pool Strainer 2-E21-S2B, Core Spray Pump Suction Line B I

i i

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NOTE:

1. WORK THIS DRAWINO WITH 1-FP-85430 SHT. I.

2. STUDS FOR RCIC STRAINER MAY BE CUT BACK TO PROVIDE CLEARANCE. A MINIMUM OF %' PROJECTION BEYOND THE FACE OF THE NUT ON ANY CUT STUDS.

Il s

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I N/A PRcrEssioNAL ENGINEER:

"3" "

SAFETY RELATED CAROLINA POWER & LIGHT COMPANY NUCLEAR ENGINEERING DEPARTMENT ptANY: Brunswick Plant - Unit No.1 SCALE: None TITLE:

l EQUIPMENT ASSEMBLY DRAWING SUPPRESSION POOL STRAINER 1-E11-S2 RHR PUMPS 18 & 1D 3

A m

ISSUED PER ESR 97-00255 SWW UNIT 1 - SYSTEM 2045 gg NEV DATE.

DESCRIPTION DWN CM APPRS ggl#

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Appendix D BSEP Unit Nos. I and 2 Torus Design Drawing Drawing:
1.
Torus Drawing, Section at Azm. 315'(looking Southeast) 2.
Torus Drawing, Typical Section Near Vent Header Support and Center SRV Quencher Support 4
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BSEP, Unit Nos. I and 2, ECCSSuction Strainer Replacement Project NRCBulletin 96-03 FinalReport l
Appendix E Strainer Hydrodynamic Mass Test Reports Reports:
1.
Test Report No. TR-ECCS-GEN-01," Test Report for IIydrodynamic Inertial Mass Testing of ECCS Suction Strainers," Revision 2 2.
Test Report No. TR-ECCS-GEN-05," Supplement 1 to Hydrodynamic Inertial Mass Testing of ECCS Suction Strainers - Free Vibration Analysis," Revision 0 3.
Test Report No. TR-ECCS-GEN-011. "ECCS Suction Strainer Hydrodynamic Test Summary Report," Revision 0

ML20249B988

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