ML17304A165
| ML17304A165 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 05/10/1988 |
| From: | Henson L, Rowland J ARIZONA PUBLIC SERVICE CO. (FORMERLY ARIZONA NUCLEAR |
| To: | |
| Shared Package | |
| ML17304A164 | List: |
| References | |
| PROC-880510, NUDOCS 8806130013 | |
| Download: ML17304A165 (58) | |
Text
V
+w ARIZONA NUCLEAR POWER PROJECT PALO VERDE III LOOSE PART MONITORING SYSTEM LOOSE PART DETECTION PROGRAM REPORT Prepared By Technical Review and Concurrence
'Engineering Evaluation Review and Concurrence
,t ICRE upervisor Date S-2, 8
'uclear Engineering IRC Su~ervi:s r Review and Concurrence(2~ Date 0 -lO" 85 88061300i3 830526
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LIST'F ABBREVIATIONS P/N Part number nvt Integrated neutron flux (neutron/cm 2 )
Rad Radiation exposed unit pc Pico Coulomb pf Pico Farad Gravitational acceleration unit V/g Volt per g LED Light emitting Diode KH Kilo Hertz
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I'. SYSTEM DESCRIPTXON A. LOOSE PART MONITORING SYSTEM (LPMS)
The LPMS consists of eight channels. Each channel is made up of the following:
a). A piezoelectric crystal sensor (accelerometer).
b). A preamplifier (charge converter).
c). A signal processing unit.
These sensors are positioned in the following location:
(See attached drawings for details).
a). Two sensors are mounted on the reactor vessel upper head studs.
b). Two are clamped on the in-core instrumentation guide tube (penetrating the reactor vessel lower position).
c). Two are on steam generator (S/G) inlets. (One (1) per S/G).
d). Two sensors are on steam, generator outlets (leg 1A for SG1 and leg 2A for SG2).
B. SENSOR SPECIFICATION AND MOUNTING DETAILS The sensor (P/N 76M1) and cabling (P/N 3075M6) are manufactured by Rockwell International. 'They are high temperature, radiation resis-tant and hermetically sealed.
4 76M1 ACCELEROMETER MITH 3075 M6 CABLE FOR THE FOLLOWING ENVIRONMENT:
Temperature: ('F), 0 to 650 Radiation: neutron (nvt) 1018 Radiation: Gamma (rad) 1010 Vibrations (g) 100 Pressure (psig) 70 Sensitivity (ft. lb.) 0;05 The sensor mounting installation was performed using vendor procedure ER-001-530-001 (Reference procedure attached) as a guide.
C. PREAMPLIFIER (Charge Converter)
The remote Charge Converter (P/N 52M9), supplied by Rockwell International, is used to change the charge developed by the accelerometer into a voltage signal that is proportional to vibrations/impacts. The system sensitivity (accelerometer and preamplifier) is 100 mV/g. The preamplifiers are located outside of biological shield, inside the containment building (see attached drawing for location).,
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REMOTE CHARGE CONVERTER 52M9 FOR THE FOLLOWING ENVIRONMENT:
Sensitivity: 10mv/pc Radiation: Neutron (nvt) 1012 Radiation: Gamma (rad) 10 Frequency Response: 23db .45 to 50kHz Accuracy: +1X of full scale with source capacities of 1000 pf or less Temperature ('F) 40 to 150 Vibration (g) 10 D. FUNCI'IONAL DESCRIPTION OF LPMS The LPMS performs three primary functions: 1) detects the presence of loose parts in the Reactor Coolant System (RCS).; 2) alert the operator of alarm setpoint exceeded; 3) provides a location to connect equipment for diagnostic information to locate the loose parts.
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The piezoelectric sensors detect loose parts by measuring the acoustic signals which are generated- when the loose parts impact the RCS components or structures. The sensors produce a charge signal that is proportional to the impact forces. This signal is sent to a charge converter which converts the charge signal to a proportional voltage signal. The voltage signal is then sent to a signal processing unit for amplification,', signal conditioning and detection. The signal is bandpass filtered to the resonance frequency of the accelerometer
( 23KH ) before it is sent to the detector and comparator section of the zprocessing unit.
When an alarm condition is determined by the comparator circuit a logic level output change is initiated to the logic circuit card.
The manual mode of operation:
When an alarm logic level is received, two functions are initiated:
A. Local red LED is illuminated continuously at the loose parts panel for the channels in alarm condition for reactor coolant system.
B. Initiates annunciation in the control room to alert the operators of alarm condition at the loose parts panel.
The Automatic mode of operati'on:
When an alarm logic level is received, three functions are initiated:
A. Local red LED is illuminated and flashing at the loose parts panel to indicate first channel to alarm.
B. Provide logic to initiate auto start of a tape recorder.
C. Initiates annunciation in the control room to alert the operators of alarm condition for reactor coolant system at the loose parts panel.
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REMOTE CHA'RGB CONVERTER 52M9 FOR THE FOLLOWING ENVIRONMENT:
Sensitivity: 10mv/pc Radiation: Neutron (nvt) 1012 Radiation: Gamma (rad) 10
-Frequency Response: +3db .45 to 50kHz Accuracy: +1K of full scale with source capacities of 1000,pf or less Temperature ('F) 40 to 150 Vibration (g) 10 D. FUNCTIONAL DESCRIPTION OF L'PMS The LPMS performs. three primary functions: 1) detects the presence of loose parts in the Reactor Coolant System (RCS);. 2) alert the operator of alarm setpoint exceeded; 3) provides a location to connect equipment for diagnostic information to locate the loose parts.
The piezoelectric sensors detect loose parts by measuring the acoustic signals, which are generated when the loose parts impact the RCS components or structures. The sensors produce a charge signal that is proportional to the impact forces. This signal is sent to a charge converter which converts the charge signal to a proportional voltage signal. The voltage signal is then sent to a signal processing unit for amplification, signal conditioning and detection. The signal is bandpass filtered'o the resonance frequency of the accelerometer
( ~23KH z) before it is sent to the detector and comparator section of the processing unit.
When an alarm condition is determined by the comparator circuit a logic level output change is initiated to the logic circuit card.
The manual mode of operation:
When an alarm logic level is received, two functions are initiated:
Local red'ED is illuminated continuously for the channels in alarm condition.
B. Initiates annunciation in the control room to alert the operators of alarm condition at the loose parts panel. ([
The Automatic mode of operation:
I When an alarm logi'c level'si'eceived, three functions are initiated:
A. Local red LED is illuminated and flashing,.to indicate first channel to alarm.
B. Pro'vide logic,to initiate auto start 'of a tape recorded.
C. Initiates annunciation in the control room to alert the operators of alarm condition at the loose parts,pane1.
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In either mode of operation the local panel alarm indication will remain even though the initiating condition may no longer exist.
The tape recorder is a dual selectable speed cassette type with a frequency range of O.OH z to 5.0KH . The recorder has the capability of recording up to four channels simultaneously. The recording channels are preprogrammed by the analog signal selector switch.
The recordings are made such 'that the signals are in phase relationship with each other.
I'I. OPERATING PROCEDURES A. SYSTEM CALIBRATION PROCEDURES AND RESULTS
- 1. Calibrations: The system was calibrated by utilizing an actual input from an impact instrument with an equivalent force of 0.5 ft. lb. There are ten impacts at each sensor location at which time an output signal value from each repetition is recorded.
An average value is determined from the obtained values. To ensure .system sensitivity, the alarm setpoint utilizes 70X of the averaged value. In so doing the system sensitivity is enhanced, thus assuring a conservative approach. After imple-mentation of the determined value verification is performed by impacting at each sensor five times of which at least four impacts are to initiate an alarm condition.
- 2. Functional check: The LPMS functional check is performed by the surveillance program at a frequency of 31 days in Mode 1 and Mode 2. The functional test includes verifying that the alarm indicators (LED), tape recorder auto-start, at the LPM cabinet, the main control board annunciator, and plant computer events log typer operate correctly.
- 3. Channel check: The channel check and audio sound check for each loose parts channel (eight (8) channels) is performed by a surveillance procedure, at 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> intervals.
B. PLANT OPERATOR INSTRUCZION FOR USE OF LPMS
- 1. The procedure to be used following indication of a loose part, "Operating the Loose Part,and Vibration Monitoring System", is an Administrative Control Procedure to direct the operator in the event of an LPMS alarm condition. The operator is to verify that the alarm is valid by trying to clear the alarm. If the alarm will not clear, he or she will notify the Shift Technical Advisor (STA) of the condition. The STA will follow the instruc-tion in "Loose Parts and Vibration Monitoring System STA Analyses" procedure to analyze the alarm by comparing audio levels between channels and signal traces of alarm channels. The spectrum from the alarming channel is compared to quarterly spectrum data to verify the presence of loose parts. The STA will also notify the System Engineer and', Vibration Group for further advice.
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' 2. Method to diagnose loose parts: Presently, there are three methods being utilized: 1) relative time at arrival, 2) relative amplitude at arrival, and 3) the audio level detection. The relative time and amplitude analysis is conducted by the Vibration Group. The most common method of verifying and locating loose is level comparisons parts, within a general region, by audio between channels using the systems audio speaker.
III. EXPERIENCE WITH LPMS A. FALSE ALARMS The system experienced a high false alarm rate during no-core and off design condition operation. The system is still experiencing many false alarms. The major source of the false alarms is the operation of various support system operations. An example of this is control rod motion which activates the upper reactor vessel alarms.
The system has also alarmed due to major feedwater flow changes to the Steam Generator. When the Steam Bypass Control System has a sudden large flow rate this is also detected by the system's sensors. One contributing cause to the false alarm rate is the difficult alarm setting procedure. If the person doing the "impacting" is not very careful in holding the punch, a low reading will be obtained. This results in the setpoint being set too low, and thus being overly sensitive to the high background noise and high amplitude standing waves which are produced by the Reactor Coolant Pumps.
However, modification has been made to the system that is expected to reduce the high false alarm rate. This was done by circuit change to reduce the DC bias caused by the high background levels.
B. LOOSE PARTS There have been no loose parts.
C. SYSTEM AVAILABILITY The system has been available for loose parts determination. There has been two problem areas.
- 1. The high false alarm rate due to the high background levels.
- 2. The tape recorder has had several malfunctions.
IV. EVALUATION FOR CONFORMANCE TO R.G.,1.133 LOOSE PART DETECTION PROGRAM The Palo Verde Loose Parts Detection Program is in accordance with the guidelines established in Regulatory Guide 1'.133 Rev. 1 May 1981 with the exception of the 92 day background noise level measurement during normal plant operation (section 3.a(2)e). This exception has previously been approved by NRC. Technical Specification 4.3.3.8 for Palo Verde takes exception to the 92 day background .noise level measurements. However, the maintenance program does obtain background data on a time .permitted basis.
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~30ii ~ I I <530001 NUMBE REV LTR/CHG NO.
6@NPNPPA NN.~'~ SUPPORTING DOCUI'AENT ER-001-530-001 SEE SUM!VARYOf CHG P E DOCUIYIENT TYPE PROGRAM TITLE ~
VIBRATION AND LOOSE PARTS MONITORING SYSTEMS ENGINEERING REPORT KEY NOUNS DOCUMENT TITLE VIP, Installation ORIGINAL ISSUE DATE INSTALLATION PROCEDURE 7'- gP- '7/
GO NO. S/A NO. PAGE 1 OF TOTAL PAGES 2R AEPARED BY/DATE DEPT MAILADDR 4068 10000 REL. DATE P..J. Pekru 731 LB18 SECURITY CL ASS IF ICATION (CHECK ONE BOX ONLY) (CHECK ONE BOX ONLY)
IREE PROGRAMP YEE E NO Q IF YEE.ENTER TPA NO.~4 ~ AEC DOD RESTRICTED DATA Q APPROVALS I DATE UNCL gg Q CONF. Q Q DEFENSE O. R. Hillig SECRET Q Q INFO.
A. W. Thiele Q DISTRIBUTION
~ ABSTRACT 7-2 4-Q AUTHORIZED CLASSIFIER DATE NAME MAIL ADDR The Vibration and Loose Parts Monitoring System sensor assemblies installation 0.R. Hillig LA24 procedures are presented.
LI. Carter L'B18 P.E.McCourt LA37 P.;
G. Jencek :.HB14 P J T'eIcrul (25)* LB18 J.G.Radcliff ~ T009 C.R.Spencer LA37 A.W. Thiele NB14 H. Meiseneck LB19
- 3/8" 3-hole punch EPEPOEPRIETAR Y/l EGAL NOTICES ROCKVItELL INTERNATIONAL PRGPRIETAR" INrORMATICN DISSEMINATIOll OU 'PD ' E<YELL lNTERNATlONAL TO BE CLEARED THROUGH THE PATENT DEPART.
MENT. DEVELOPED UNDER PAtTPA
+ TITLE PAGE ONLY FORM 734% REV 4-71
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ix,00j.Oi>1Vi530001.
Atomics International DWsion No. -001-530-001 RockWell International PAGE 1.1 V ~.
REV
SUMMARY
OF CHANGE APPROVALS AND DATE CHANGE 0 1 Page 5: Section 4.6 changed to include 10-32 threaded
,g -yr-V4 pilot'HANGE g/(/ '0-/C-7 r /. <::Jr. il. 'c'-"'~-7s 5 2 Page 7.1: Added Section 4.9, Waterhammer Sensor Assembly J ~
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Add Installation Checklist. 'Corrections on': .
pages 4, 7, ll, 12, 13, 14, 15.
3ZL DATE:
ange E r r
( Added Figure 6 and J-Box hole spacing to'Page 5.
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CHANGE Updated for latest methods. Correction on
'pages 3g 4g 6~ 7~
CHANGE 5'6 Figure 1, page 11 replaced g 37 gL.. QA E: S /0 77 FORM 7~ 1 RCV,2~74
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5.0010MM530001'01-530-001 Page 2 INSTALLATION PROCEDURE V&LP SENSOR AND PKDLMP INSTALLATIONAND CHECKOUT
- l. 0 SCOPE This procedure describes the installation and checkout of the sensors (accelerometers) for the Vibration and Loose Parts Monitor system.
- 2. 0 APPLICABLE DOCUMENTS
- 1) ~
Interface Specification
- 2) Operation Manual
- 3) Installation
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- 4) Purchase Order, Proposal or Contract
- 5) Buyer Specification 3 0 DESCRIPTION See Operating Manual and other applicable documents.
- 4. 0 PROCEDURE (Sensor Installation and Cable Checkout) 4.1 Pazts Check availability of parts. All parts or approved substitutes are required before starting. Installation can be started-vith partial avaQ.ability only with engineering approval.
4.2 Too1s Re uired
- 1) Standard Electricians Hand Tools
- 2) Volt Ohmmeter (VCH)
- 3) 7/8" Spotface and chamfer
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-003 530-001
~age 3 apwd5c.
- 4) Alcohol or other acceptable solvent
- 5) Power drill and No. 21 drill bit
- 6) 10-32 start and bottom taps
- 8) 600 volt, Megohm.meter (Megger)
- 9) Fiberglass tape
- 10) Standard Electricians Vinyl Tape 4.3 Installation Conditions
- 1) Cabinet to preamp cable, and/or conduit has been inst+led per the Interface Specification.
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- 2) Preamp )unction box installed per applicable ARE installation drawing.
- 3) Rigid conduit from preamp )unction box to within 3'f sensor location in place.
c 4) Cabinet in place (welded if required) and 120 volt, 60 Hz power connected with breaker in "off" position. Low noise instrument power required.
NOTE: Sensors can be installed without cabinet in place.
4.4 Connector Installation
- 1) Attach Indicator Assembly cable connectors per instruction sheet.
- 2) Attach preamp cable connectors per instruction sheet.
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50010iViM5="0001.
-00>530-001 Page 4 gggnlc 5 Sensor Installation - Mountin Block
- 1) Assemble mounting as shown in Figure 3-'3 and 3-4.
- 2) Attach flexible conduit to sensor J-Box.. Then install pull box between flexible and rigid condu'f;t;- -')
Pull sensor to the preamp cable through conduit.'AUTION:
Maximum tensile load on 10-32 connector is to be less than 5 lbs.
Use caution so as not to scratch or deform cable.
- 4) 'Attach coupling to sensor-preamp cable at sensor end.
- 5) Attach high temperature coax leader to coupling.
- 6) Tape with fiberglass tape. "~.
NOTE: Omit step 4, 5 and 6 for low temperature sensors.
- 7) Attach a known resistance (approximately 1 K 0) to sensor end of sensor cable assembly and using a VRf check continuity. Also check resistance from signal wire to ground and shield to ground.
600~ Megger, insulation resistance of signal to shield should Remove 1 K resistor.
be Using greater than 10 4 MA/1000 ft. 'and shield to ground should be greater than 10 3
MA/
1000 ft. Complete Table X. Discharge cables upon completion.
- 8) Repeat step 7 onpreamp to cabinet cable by attaching resistance at one end and checking continuity.
- 9) Clean mounting surface with alcohol or other solvent.
- 10) Screw insulated stud in place and torque to 25 inch pounds.
NOTE: Extreme caution should be taken to assure that sensor and preamp cables are not broken or shorted to conduit..
ll) Screw sensor in place and torque to 18 inch pounds.
- 12) Attach sensor connector and safety wire in place.
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50010ivlM530001I Chg.~ No.~ 4 ER-001-530-001 Page 5 4.6 Sensor Installation .Stud Mountin
- 1) Locate exact sensor location. Xf necessary, remove insulation;
- 2) Center punch and drill 821 hole. Depth not to exceed 3/8 in. Tap for 10-32 screw. Complete hole by using bottom tap. 5/16 in. of threads are necessary. (see Figure 6)
- 3) Clean threaded hole and install 10-32 threaded pilot.
- 4) Spot face to smooth base metal. Spot face should be about 0.010 in. deep.
')'hamfer pilot hole 1/32 in. with 1/4 in. drill.
- 6) Clean area with alcohol or other solvent.
- 7) Screw stud in place and torque to 25 in. pounds;
- 8) Place )unction box in position around stud. Do not mount )unction box with screws at this step.
Repeat steps 2 through 8 of section 4.5.
.. 10) The ]unction box can.now be positioned to allow for the best orientation of the flexible conduit and to minimize load on the wiring Center punch mounting holes for the J-box. (see Figure 4)
The J<<Box hole spacing is:
3 in. J-box 1.20 ~ 0.03 in.
4 in. J-box 1.325 +'.03 in
- 12) Drill (821 drill) and tap (bottom tap) for 10-32 screws. Depth is not to exceed 3/8 in.
- 13) Clean area and holes with solvent.
- 14) Install mounting screws to secure )unction box.
- 15) Screw sensor in place and torque to 18 in. pounds.
- 16) ch o r s lace e Fi Ur .AIIy C'I wcJR~ b) ~So R
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OV.VLill'iil'ilQOVVVJ ER-001-5~001 Page 6 g~~~C Z 4:7 Sensor Installation Ma netic. Mountin
- 1) Assemble mounting per Figure 7 6 8. Attach flexible conduit.
- 2) Determine actual sensor mounting location.
- 3) Clean surface, with alcohol or .other acceptable solvent and check to assure that surface beneath magnet is flat to within +0.002" and. a minimum of surface material is between vessel steel and magnet.
- 4) Install pull box between flexible and rigid conduit.
- 5) Repeat steps 3 through 9 of Section 4.5.
- 6) Apply high temperature. adhesive (.010") evenly over'ntire top of sensor- Allow to set for one hour. Remove any, adhesive on the side of the sensor.
- 7) Attach high temperature .leader to sensor. with spring over leader.
- 8) Tape with fiberglass tape the 10-32 coupling on top of sensor one revolution onl
- 9) 'lide assembly into retainer (Fig. 7) and verify smooth movement
(,- . over entire stroke. Correct l
until smooth movement" is present.
- 10) Apply -005" adhesive on base of sensor.
- 11) Holding entire assembly (conduit, magnet and sensor) in place, attach assembly to mounting location. Check to assure that:sensor alignment has been maintained and that magnet is in contact with surface at all poles
- 12) Apply a 20 pound force, perpendicular to the mounting .surface, to the magnet. Magnet should remain in place. If not, check mounting surface, alingment, and magnet flux and then repeat 85. Recheck adhesive.
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50010ibi4153000X
-001-.530-001 Page 7 CHA h/4 F'
.8 Sensor InstallationThreaded Pasteners
- 1) Clear threads of threaded receptical. Use bottom tap if necessary.
Clean area with acceptable solvent.
- 2) Insert threaded fastener through J Box and mount+ Threaded fastener's torque should be appropriate for.size of thread.
- 3) Repeat steps 3 through 12 of .Section 4.5.
- Upper vessel fasteners use mounting stud to hold J-Box in place.
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kl0010ViiVI530001! CHANGE 2 ER-00 0-001 Page 7.1.
'Waterhammer Flush Mountin Sensor/Ada tor Assembl Installation.
(Refer to figure 3) The following procedure applies to assemblies 602R; 612(X)l and 612(X)2. Proceed as follows:
- 1) Determine pressure chamber wall thickness at intended installation site; determine by how much overall thickness exceeds accumulated cavity'dimension 0.465/0.435-inch. Excess is dimension X.
- 2) Drill through, using 21/64 (0.328)-inch dia drill.
- 3) Ream through 0.328-inch dia to 0.332-inch dia, using size Q standard reamer.
- 4) If required, counterbore 0.750-inch dia by X dimension', using flat-end counterbore or spot<<facer with size Q pilot.
- 5) Counterbore to form seal recess and seal surface, 7/16 (0.4375)-inch dia x 0.05-inch depth, using flat-end spot-facer with size. Q pilot.
CAUTION: Seal surface must have 32 finish.
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- 6) Chamber 0.332 Bore, 90 x 0;39-inch dia.
- 7) Tap through, using 3/8-24 2B taps.
- 8) Remove all chips and cutting oil; clean cavity thoroughly.
- 9) Coat adaptor threads and seal surfaces. with film of silicone grease; coat a new seal, Model 200E10 (0.062 thk) with silicone grease and place on assembly, Insert into cavity and tighten finger tight.
- 10) Tighten assembly to suggested maximum torque of six to eight foot-pounds, using 7/16-inch six-point socket with torque wrench.
NOTE: Do not remove protective cap until installing cable.
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'10MP1530003.'lwaaev ER-001-5 -001 Page 7.2 4.9B1 Testin for Leaks at Installation. Before operating the pressure source, test for leaks. Three methods are listed in order of preference:
- 1) Apply soapy solution at seal, only; pressurize chamber wi.th air or nitrogen. Observe for bubbles. Clean thoroughly, afterward.
- 2) Connect a pressure gauge to chamber and apply pressure, Block input and outlet and observe gauge for long enough elapsed time to assure a seal.
- 3) Observe for extruded liquid.
4.9.2 Cable Installation. The cable should be routed to avoid kinking and sharp bends, particularly at the connectors. All connections, must be clean and dry at assembly and the hookup should be kept as clean and dry as possible in use.
The connection between cable and sensor can be made waterproof with heat-shrinkable tubing applied as shown in Figure 3. Installations which are sub-.
)ected to severe vibration should have the cable connector secured to the
- ( sehsor with a small amount of epoxy,.cement applied ~onl to the external threads of the sensor connector at assembly.'ATION:
Do not use Loctite or other thread sealant which can contaminate connector insulation'.
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4.9.4 J Box -Attac.h J Box aa-6 cover
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.~ PROCEDURE (Preamp Checkout) the Indicator Assembly is available install and checkout the preamps according to the following.
- 5. 1 Install'r-e'am s..';
- 1) Install preamps
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in designated J-Boxes by mounting
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preamp bracket.
Note serial numbers.
- 2) Attach sensor cable connectors.
- 3) Attach cabinet cable connector at preamp.
NOTE: Do not tape preamp connectors until each channel is completely checked out.
5.2 Preamp Electrical Checkout NOTE: Steps 1 through 4 are performed at cabinet.
- 1) Attach a 1 K0 resistor at Indicator Assembly to each preamp cable. input connector. Do not connect preamp to indicator assembly.
- 2) Turn-on Indicator Assembly.
- 3) 3.9 volts should be measured across the 1 K 0 resistor on each channel.
(See Table II)
- 4) Remove the 1 K0 resistor. 20 volts should be measured at each preamp cable across signal and shield.
- 5) Attach each preamp with a BNC "T" inbetween the preamp and Indicator Assembly. About 4 volts should be measured on "T" across signal to shield Remove T's after completion ~
- 6) Listen to each channel on audio monitor. The characteristic plant back-ground noise should be heard.
- 7) Complete Table II.
- 8) Calibrate each V&LP channel per the appropriate procedure. (See Operation Manual)
- 9) Tape preamp and preamp connectors with two layers of vinyl electrical tape.
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-001-530-001 TABLE I age 9 CABLE CHECKOUT r--
annel Cable Signal Shield Signal to Shield ber Number to Ground to Ground 2
e 7
I 8 a
9 10
! 11 12 13 14 15 17 18 19 20
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'2-001 530-001 ge 10 TABLE II PREd2P CHECKOUT Channel 1 K Open Ckt Preamp Signal Number Volta e Volta e Volta e Content 2
12 13 14 16 18 19 20
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ER-001-530-001 pt ivated. Contacts - continued. Pi u2 2 Pa e 12 nut washer gasket clamp hushing hushing rear female front jack body male front plug body insulator Insulator contact Insulator contact . Insulator
+this bart Is only used when RC.62 R.yl/u cables are emmoyed.
caoles RG-59/U, RG-59A/U, RG-598/U, RG-62/U, RG-62A/Ur RG 62C/Ue RG 7l/Ue RG 'FT8/Ue RG l40/U Cut end of cable sharp and square. Slide nut, washer and gasket, with 'Y'roove toward clamp over jacket, and cut off jacket to dimension a shown below.
dlmenslen alesa all Others Comb out braid and fold out. Cut off cable dielectric to dimension h shown below. Cut to be sharp and square. Do not nick center conductor.
r yak RC42/Vs RC42a/ue RC.SS/u, RC SSR/u, RC42C/uy RC 21/Q>
Rc ssa/u, Rc tao/u Rc ytc/u Pull braid wires forward and taper toward center conductor. Place clamp over braid and push back against cable jacket.
Fold back braid wires as shown, trim to proper length and evenly ~
form over clamp as shown. Tin exposed center conductor using min)mum amount of. heat. ~ Do not distort dielectric so as to prevent proper mating with bushing and tear Insulator.
Slide on bushing, ffor RGB 4 -71/U cable, add insulator bushing),
rear insulator and contact. These parts must butt. as shown. Solder contact to center conductor.w Remove flux and excess solder from contact 0$ .
Slide front insulator over contact and butt against contact shoulder as shown. Do not reverse ditection of insulator.
Insert prepared cable termination into conduhtor body. Make sure sharp edge of clamp seats properly in gasket. Tighten nut, holding body stationary.
~ Usc Divco =276 lot other high temp. alloy) solder for high temp.
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note: For RG.141/142 type copper Jacketed cable, see assembly instructions for Improved Type connecsots.
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N0010MM530001 OP) 53O QO} PQPi i 3 Pagel9 TABLE II VLLPM INSTALLATION CHECKLIST
- 1. All sensor installations inspected.
- 2. All preamp installations inspected.
- 3. All cable installations inspected, i'ncluding sensor and preamp cables inside containment, penetrations and ex-containment cables.
- 4. Table I complete.
- 5. Table II complete.
- 6. All major components in VELPM system; i.e., indicator assembly, spectrum analyzer, X-Y plotter, tape recorder, calibrator, functionally checked for proper operation.
- 7. Section 5.0 of the test procedure DTP-001-530-OXX repeated.
- 8. System accepted by customer or agent.
Customer Signature Date
- 9. Telephone report to AI project.
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