ML20198D827
| ML20198D827 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 12/15/1998 |
| From: | Eric Simpson Public Service Enterprise Group |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LCR-H98-03, LCR-H98-3, LR-N98494, NUDOCS 9812230229 | |
| Download: ML20198D827 (16) | |
Text
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l Pubhc Servce Electne and Gas i
Company E. C. Simpson Pubhc Service Electric and Gas Company PO Box 236, Hancocks Bridge. NJ 08038 609-339-1700 Senior Vice Presdent. Nuclear Engmeerg DEC 151998 LR-N98494 LCR H98-03 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
SUPPLEMENT TO A REQUEST FOR CHANGE TO TECHNICAL SPECIFICATIONS DELETION OF AUTOMATIC DEPRESSURIZATION SYSTEM VALVE STARTUP TESTING HOPE CREEK GENERATING STATION FACILITY OPERATING LICENSE NPF-57 DOCKET NO. 50-354 On June 25,1998, via letter LR-N98277, Public Service Electric & Gas (PSE&G)
. Company transmitted License Change Request (LCR) H98-03 to the NRC to request a revision to the Technical Specifications (TS) for the Hope Creek Generating Station.
Specifically, LCR H98-03 requested, in part, a deletion of the requirement to perform in-l situ functional testing of the Automatic Depressurization System (ADS) valves once every 18 months as part of startup testing activities.
On Scp! ember 10,1998, and October 28,1998, PSE&G held teleconferences with the NRC regarding the LCR submittal. As a result of the teleconference, PSE&G is
. forwarding additional information, as attached, concerning the acoustic monitor l
calibration process. The information in this letter supercedes the information previously sent by PSE&G in letter LR-N98407, dated August 25,1998.
PSE&G has determined that the information contairied in this letter, and its attachments, do not alter the conclusions reached in the 10CFR50.92 No Significant l
Hazards analysis previously submitted with LCR H98-03.
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in accordance with 10CFR50.91(b)(1), a copy of this submittal has been sent to the State of New Jersey.
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1 Document Control Desk LR-N9'8494 Should you have any questions regarding this request, please contact James Priest at 609-339-5434.
Sincerely, Affidavit Attachments (2)
C Mr. H. Miller, Administrator - Region i U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr. R. Ennis Licensing Project Manager - Hope Creek U. S. Nuclear Regulatory Commission One White Flint North Mail Stop 14E21 11555 Rockville Pike Rockville, MD 20852 Mr. S. Pindale (X24)
USNRC Senior Resident inspector - HC Mr. K. Tosch, Manager IV Bureau of Nuclear Engineering l
P. O. Box 415 Trenton, NJ 08625 l
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l Document Control Desk DE0151998
(
LR-N98494 L
l JPP l
l BC Senior Vice President - Nuclear Operations (X04)
Senior Vice President - Nuclear Engineering (N19)
General Manager - Hope Creek Operations (HO7)
Director-QA/NT/EP (X01) l Director - Licensing / Regulation and Fuels (N21)
Director - Design Engineering l
Manager - Financial Control & Co-Owner Affairs (N07)
Program Manager - Nuclear Review Board (N38)
Manager - Hope Creek Operations (H01)
Manager-Plant Maintenance, Programs & Maintenance Services (X07)
Manager - Hope Creek Licensing (N21)
J. Ondish (X07)
J. Keenan, Esq. (N21)
NBU RM (N64)
Microfilm Copy Files Nos.1.2.1 (Hope Creek),2.3 (LCR H98-03) l l
REF: LR-N98494 LCR H98-03 STATE OF NEW JERSEY )
) SS.
COUNTY OF SALEM
)
E. C. Simpson, being duly sworn according to law deposes and says:
I am Senior Vice President - Nuclear Engineering of Public Service Electric and Gas Company, and as such, I find the matters set forth in the above referenced letter, j
concerning Hope Creek Generating Station, Unit 1, are true to the best of my knowledge, information and belief.
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Subscribed and Sworyn before me this
/f day of/Jgd,1998 hbfl O.
8 Notary Puth,c of New hrs'eyU ELIZABETH J. KIDD NOTARY PUBUC OF NEW JERSEY My Commission expires on i
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Attachm:nt 1 LCR H98-03 i
I LR-N98494 l
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Acoustic Monitor Calibration:
Fluid Flow L
Detector module (in back of l~
control room) i Acoustic Monitor
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located on Preamplifier Tailpipe outside drywell.
closed SRV lMSRV l
Tailpipe i
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l Main steam line To Torus The basic components of the SRV acoustic monitor system at Hope Creek include the acoustic monitor sensor, mounted by a clamp on the SRV discharge tailpipe, a preamplifier (line driver) mounted outside containment, a fluid flow detector module and a power supply. The calibration procedure described in the following paragraphs is currently implemented at Hope Creek and will continue to be performed after implementation of the changes proposed in LCR H98-03.
Currently, prior to performing a calibration, the acoustic monitor sensor is disconnected from the preamplifier. PSE&G has contacted the acoustic monitor vendor, NDT International, Inc., concerning the n3ed to periodically calibrate the acoustic monitor sensors in response, the vendor confirmed that the sensor should provide a constant frequency and amplitude output during its forty year qualified life, in addition, the vendor stated that, historically, the few sensor failures reported by user utilities have been indicated by a lack of output, and that an integrated system response test after l
system calibrations is sufficient to confirm the ability of the acoustic monitor sensor to Page 1 of 3
l Attachm:nt 1 LCR H98-03 l
LR-N98494 l
l perform its function. Therefore, calibration of the sensor itself would require only the performance of the integrated system response test.
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For the calibration of the rest of the channel, a sinewave generator is connected to the i
preamplifier input terminals, and a digital multimeter is connected to the fluid flow I
detector analog output terminals. The fluid flow detector analog output is logged and compared to the varying sinewave generator input to determine the as-found condition of the channel and to determine the frequency response of the preamplifier and fluid I
flow detector. Attachment 2 contains portions of the calibration procedures data tables, which provide information on the typical ranges of input signals applied and output values measured.
Adjustments are then performed only if an evaluation of the as found data determines that readings are outside of the required range. Since the analog output of the fluid flow detector is adjusted during the calibration, no adjustments are actually performed on the preamplifier. The fluid flow detector is the last stage of signal amplification and processing. The fluid flow detector has three types of output. The first output consists of logic lights, which indicate the closed or open position of the SRV. The second output is a DC analog output indicating position of the valve. Finally the third output is an LED digital display switchable to select either the setpoint, the acoustic rms level, or the accumulated number of valve openings. During the calibration, the sinewave generator provides known inputs into the preamplifier, and potentiometers in the fluid flow detector are adjusted such that the analog output is within the calibration tolerance range. The as left data is recorded per procedure as the acoustic monitor calibration is cornpleted. Following the completion of this calibration, the M&TE is removed and the acoustic monitor sensor is reconnected to preamplifier. PSE&G then performs an integrated system response test to vt rify the functionality (sensor-to-fluid flow module continuity) of the reinstalled instrumentation. This test consists of a verification of fluid flow module display response when the SRV tailpipe is tapped near the acoustic monitor sensor mounting location. PSE&G will not use a hand held shaker to perform a calibration of any portion of the preamplifier-fluid flow detector circuit.
In addition to the above acoustic monitor calibration, PSE&G has performed acoustic monitor setpoint verifications during each plant startup. The setpoint verification confirms that the acoustic monitor setpoint is less than or equal to 30% of the SRV full open noise level (Note: Current TS 4.4.2.1 requirements state that initial acoustic monitor settings were provided by the acoustic monitor vendor and were adjusted to actual plant conditions during the initial noise trace analysis during plant startup.
Additional adjustments to the noise levels were not required by the TS). PSE&G had conservatively determined that this confirmation of SRV noise levels (using actual values when SRVs were opened during startup) was desired due to "setpoint repeatability" problems encountered when acoustic monitors have been removed and reinstalled on the SRV tailpipes.
Page 2 of 3
' Attachment 1 LCR H98-03 LR-N98494 The proposed changes to the TS will not permit this method of noise level setpoint confirmation since the SRVs will not be opened during plant startup. Therefore, noise level setpoint confirmation will no longer be required as part of the acoustic monitor calibration process. "Setpoint repeatability" will be addressed by revising the acoustic monitor calibration process to ensure that the acoustic monitor sensor is not removed from the SRV tailpipe (removal and reinstallation may introduce variations in noise level readings). In addition, the calibration of the preamplifier / fluid flow detector, as stated above, will help ensure that the noise level setpoints, which are conservatively based upon measured plant values from the last startup, are appropriate.
Although the calibration process remains unchanged, PSE&G will make changes to the setpoint confirmation process (necessary to reflect the proposed elimination of SRV openings) under the provisions of 10CFR50.59. For system configuration changes, j
PSE&G will ensure (again, using the provisions of 10CFR50.59) that the acoustic monitor setpoint is less than or equal to 30% of the full open noise level for the Hope Creek SRVs in order to satisfy the TS surveillance requirements.
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'Atta::hm:nt 2 LCR H98-03 LR-N98494 I
Selected portions of Hope Creek calibration procedure HC.lC-CC.AB-0041(Q), Revision 19 l
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HC.IC-CC.AB-0041(Q) 5.2 Tag i
w NOTE Throughout the performance of this test, Table 1 of Attachment 1 should be referenced to obtain specific information (computer points, terminals, sensor numbers, etc.)
regarding the channel under test.
l CAUTION Whenever connecting test equipment to a preamp, ensure the test equipment is ungrounded (floating) to minimize the probab5fty of introducing ground loops.
I 5.2.1 Preamphfier and Fluid Flow Detector Module Test i
A.
Refer to Table 1, Attachment 1, for all designators, computer point i
identifications, status lights, and terminals used in the section.
]
B.
Disconnect the sensor input to the preamp as follows:
I 1.
Have and independent verifier locate and label the field wires on the l
preamp input tenninals listed for CHANNEL A.
i 2.
Verify that the proper wires have been identified, then lift and tape i
the field wires on the input terminals.
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C.
Connect the M&TE to the Preamp Input Terminals listed on Table i for l
CHANNEL A, as shown on Figure I, Attachment 1.
i D.
In panel 10C605, connect a DMM set to read 2 VDC across the Analog l
Out Terminals listed on Table 1 for CHANNEL A.
E.
At panel 10C605, position the A-B switch on the associated module to the A-B Sw Pos listed on Table 1 for CHANNEL A.
F.
If not already done, select CHANNEL A to be displayed in Vrms by placing the I-C-T switch on the associated module to the I position.
O.
Adjust the capacitor decade box for a value of 1.0 micmfarad.
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}
N.
Adjust the sinewave generator output frequency to 10 KHz (9.8 to 10.2 J-KHz).
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1.
Adjust the amplitude of the sinewave generator output signal until the CHANNEL A display LWw each INPUT value specified on DATA i
TABLE 1A, Attachment 1. For each INPUT value, secord the DMM indication in the AS FOUND column of DATA TABLE 1 A.
HOPE CREEK 8 of 86 Rev.19
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a, IICcIC-CC.AB-0041(Q) 5.2.1 (Continued)
J.
Adjust the amplitude of the sinewave generator output signal until the rms voltmeter (connected to the sinewave generator) indicates each of the m
INPUT values specified on DATA TABLE 2A, Attachment 1. For each INPUT value, record the DMM indication in the AS FOUND column of DATA TABLE 2A.
K.
Adjust the amplitude of the sinewave generator until the rms voltmeter connected at the CHANNEL A Preamp Input Terminals indicates 500 l
mVrms (490 to 510 mVnns) and note the indication on the DMM at the i
l Analog Out Terminals in panel 10C605.
L.
Slowly lower the output frequency of the sinewave generator until the DMM indicates +0.354 VDC.
M.
Record the frequency indicated on the frequency counter in the AS FOUND LOW FREQ CUTOFF column of DATA TABLE 3A, l.
N.
l Adjust the output frequency of the sinewave generator to 10 KHz (9.8 to 10.2 KHz). Verify the DMM indicates approximately the same value l
noted in step 5.2.1.K.
O.
Slowly raise the output frequency of the sinewave generator until the DMM indicates +0.354 VDC.
P.
Record the frequency indicated on the frequency counter in the AS i
FOUND HIGH FREQ CUTOFF column of DATA TABLE 3A,.
Q.
Readjust frequency to 10 KHz (9.8 to 10.2 KHz) and verify the DMM indicates appiuximately the same value noted in step 5.2.1.K.
R.
Adjust the amplitude of the sinew 2ve generator output signal to minimum.
S.
Verify the following:
Control Room annunciator Cl A3, ADS /SAFEIY RRllFF VLV i
e NOT CLOSED, de-energized.
l The PSVP013 OPEN/ CLOSED status light associated with a
CHANNEL A, listed on Table 1, and located on the REllEF l
VALVE POSITIONS scetion of the VCP, has its green CLOSED l
light illuminated.
t HOPE CREEK 9 of 86 Rev.19
HC.IC-CC.AB-0041(Q) 5.2.1 (Continued)
BA, Repeat steps 5.2.1. A through 5.2.1. AP except step 5.2.1.1 for CHANNEL
%. Record the AS FOUND data in the following DATA TABLES:
l 1.
Step 5.2.1.J in DATA TABLE 2L.
2.
Steps 5.2.1.M and 5.2.1.P in DATA TABW 3L.
3.
Steps 5.2.1.X and 5.2.1.AE in DATA TABLE 4.
l BB.
Repeat steps 5.2.1.A through 5.2.1.AP (entirely) for CHANNEL L.
Record the AS FOUND data in the following DATA TABLES:
1.
Step 5.2.1.I in DATA TABLE IG.
2.
Step 5.2.1.J in DATA TABLE 2M.
3.
Steps 5.2.1.M and 5.2.1.P in DATA TABLE 3M.
4.
Steps 5.2.1.X and 5.2.1.AE in DATA TABLE 4.
BC. Repeat steps 5.2.1.A through 5.2.1.AP except step 5.2.1.1 for CHANNEL M. Record the AS FOUND data in the following DATA TABLES:
1.
Step 5.2.1.J in DATA TABLE 2N.
]
2.
Steps 5.2.1.M and 5.2.1.P in DATA TABLE 3N.
3.
Steps 5.2.1.X and 5.2.1.AE in DATA TABLE 4.
5.3 Data Evaluation 5.3.1 Evaluate the AS FOUND data recorded on DATA TABLES l A-G,2A-N,3A-N.
and 4. E any AS FOUND data exceeds its DESIRED RANGE, 'IEEN notify the Job Supervisor and go to section 5.4, Caliteration.
5.3.2 E all AS FOUND data is within its DESIRED RANGE, IHEN record this data in the AS LEPT column and go to section 5.5.3, Integrated System Response Dg.
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HOPE CREEK 15 of 86 Rev. t o i
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HC.IC-CC.AB-0041(Q) 5.4 Calibratina CAUTION u
Whenever connecting test equipment to a preamp, ensure the test equipment is ungrounded (floating) to minimize the probabutty of introducing ground loops.
5.4.1 Preamplifier Cahbration A.
'Ibere is no adjustment associated with an Acoustic Monitoring System preamplifier. E any AS FOUND data on DATA TABLES 2A-N QE DATA TABLES 3A-N is not within its DESIRED RANGE, THEN notify the Job Supervisor that a preamp problem may exist; OTHERWISE go to section 5.4.2, Fluid Flow Detector Calibration.
5.4.2 Eluid Flow Dater *nr ('ilihmtian l
A.
E any AS FOUND data on DATA TABLES 1 A-G QR 4 is not within its DESIRED RANGE, THEN perform the remaining steps of this section; OTHERWISE go to section 5.5, Data Venfication.
B.
E the setpoint is to be calibrated, 'IEEN notify the Quality Assurance Department that a Technical Specification related trip point calibration will be performed.
C.
Connect the M&TB to the Preamp Input Terminals listed on Table 1 for the CHANNEL to be calibrated, as shown on Figure 1. E a setpoint adjustment is required to be performed, 'IREN connect the M&TE to that CHANNEL; OTHERWISE either CHANNEL on the module can be used to calibrate the display.
D.
Connect a DMM to the Analog Output Terminals listed on Table i for the CHANNEL that the M&TE was connected to in step 5.4.2.C above.
NOTE Each of the two card files may be independently de-energized by unplugging the power cord at the back of the file.
B.
At panel 10C605, de-energize and remove the module associated with the j
CHANNEL to be calibrated (refer to Table 1) as follows:
1.
Have an independent verifier locate and label the module to be l
removed and its associated power cord.
4 1
2.
Verify the correct module was labeled, then unplug the card file and remove the module.
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HOPE CRFIK 16 of 86 Rev.19 i
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HC.lC-CC.AB 0041(Q) 5.4.2 (Continued)
F.
Remove the side cover from the module and if necessary, the Counter
% lay Printed Circuit Board (PCB) to obtain access to the desimd adjustments shown on Figures 2a and 2b, Attachment 1.
G.
Connect the module to its slot electrically using the extender cable as l
follows:
1.
Connect one end of the cable to the female edge connector located in the module slot.
2.
Connect the other end of the cable to the male edge connector on the module.
H.
Energize the card file.
I.
E the Counter Display (indicator) on the module being calibrated mquires adjustment, THEN perfonn the following:
1.
Adjust the sinewave generator output frequency to 10 IUIz (9.8 to 10.2 KHz).
2.
Adjust the capacitor decade box to 1.0 micmfarad.
3.
Place the I-C-T switch on the module being calibrated to the I position.
4.
Place the A-B switch on the module being calibrated to the A-B Sw Pos listed on Table i for the same CHANNEL as the M&TE is connected to.
5.
Adjust the amplitude of the sinewave generator output signal to obtain an indhtimi of 0.000 VDC (- 0.005 to 0.005 VDC) on the DMM.
6.
Refer to Figure 2a. Adjust ZERO potentiometer R1 on the Counter Display PCB to obtain an indication of 0.000 VDC (-0.005 to 0.005 VDC) on the front module display.
7.
Adjust the amplitude of the sinewave generator output signal to obtain an indication of +0.990 VDC (0.985 to 0.995 VDC) on the DMM.
8.
Refer to Figure 2a, Adjust CAL potentiometer R2 or the Counter Display PCB to obtain an indication of 0.990 VDC (0.985 to 0.995 VDC) on the front module display.
l HOPE CREEK 17 of 86 Rev.19 l
HC.IC-CC.AB 0041(Q)
,5.4.2.I (Continued) 9.
Repeat steps 5.4.2.I.5 through 5.4.2.L8 above until no further adjustment is required.
- 10. Adjust the amplitude of the sinewave generator output signal until the Counter Display on the front of the module being calibrated indicates each INPUT value specified on the associated DATA TABLE (I A-G).
Note the DMM indication at each INPUT value.
I1. E the recalibration data is not within its CALIBRATION TOLERANCE, THEN notify the Job Supervisor, J.
E the setpoint of the module being calibrated requires adjustment. THEN perform the following steps:
1.
If not already done, adjust the frequency of the sinewave generator output signal to 10 KHz (9.8 to 10.2 KHz).
2.
Adjust the sinewave generator amplitude to obtain an indication on the DMM within the Calibration Tolerance specified on DATA TABLE 4 for the CHANNEL to be calibrated.
3.
Refer to Figure 2b and Table 1. Determine the THRESHOLD and DELAY potentiometers to be adjusted (A or B) by noting the A-B Sw Pos listed on Table 1 for the CHANNEL to be calibrated. The potentiometers with the same letter design' tion as the specified A-B a
Switch Pos are the potentiometers to be adjusted.
4.
Verify the associated DELAY potentiometer on the Main PCB is fully l
cw. If necessary, readjust the DELAY fully cw.
5.
E the green CLOSED LED on the CHANNEL being calibrated is extinguished, THEN adjust the associated THRESHOLD potentiometer cw, as necessary until the CLOSED LED is l
illuminated.
I 6.
Slowly adjust the THRESHOLD potentiometer ccw until the gmen I
CLOSED LED is just extinguished.
7.
Lower the amplitude of the sinewave generator output until the gmen i
CLOSED LED is illuminated.
I 8.
Slowly raiw the sinewave generator output signal amplitude until the green CLOSED LED is just extinguished.
l IIOPE CREEK 18 of 86 Rev.19
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HC.IC-CC.AB-0041(Q)
ATTACHMENT 1 DATA TABLE 1A w
CHANNEL A B DISPLAY MODULE DESIRED CALIBRATION 1
INPUT RANGE AS TOLERANCE AS (Vrms)
(t0.045 VN FOUND (t0.030 VDC)
LEFT FROM TO FROM TO l
.005
-0.040
+0.050
-0.025
+0.035 l
.250
+0.205
+0.295
+0.220
+0.280
.500
+0.455
+0.545
+0.470
+ 0.530
.750
+ 0.705
+0.795
+0.720
+0.780
.999
+0.954
+1.044
+ 0.969
+ 1.029
.750
+0.705
+0.795
+ 0.720
+0.780
.500
+0.455
+0.545
+ 0.470
+ 0.530
.250
+0.205
+ 0.295
+0.220
+0.280 l
.005
-0.040
+ 0.050 4.025
+0.035 i
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HOPE CREEK 40 of 86 Rev.19
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I HC.IC-CC.AB-004I(Q)
NITACHMENT 1 DATA TARI R 2A ANALOG OUirUT: 1 AB XISH 4508A DESIRED CALIBRATION INPUT RANGE AS TOLERANCE (Vrms)
AS FOUND LEFT FROM
'IO FROM TO
.000 4.014
+0.014
-0.010
+0.010 l
.250
+0.199
+ 0.301
+ 0.200
+0.300
.500
+0.449
+0.551
+0.450
+0.550
.750
+0.675
+0.825
+ 0.675
+0.825 1.000
+0.900
+1.100
+0.900
+1.100 l
.750
+0.675
+0.825
+0.675
+0.825
.500
+0.449
+0.551
+0.450
+0.550
.250
+ 0.199
+0.301
+0.200
+0.300
.000
-0.014
+ 0.014 4.010
+ 0.010 l
DATA TARI.R 3A PREAMPIltmv. AND FLUID FLOW DumCTOR FREQUENCY RESPONSE:
CHANNEL A DESIRED RANGE AS C M M ON FREQUENCY FOUND TOLERANCE AS y
PROM TO (S)
FROM TO (3)
LOW FREQ 0.0
< 4.0 0.0
< 4.0 CUTOFF HIGH FREQ
> 20.0 INFINITY
> 20.0 INFINITY CUTOPP HOPE CREEK 41 of 86 Rev.19
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