ML051230031
| ML051230031 | |
| Person / Time | |
|---|---|
| Site: | Quad Cities  |
| Issue date: | 04/22/2005 |
| From: | David Chan General Electric Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 26A6395, Rev 1 | |
| Download: ML051230031 (23) | |
Text
ATTACHMENT 6 "Dryer Vibration Instrumentation," Design Specification, GE Report 26A6395, Revision 1, dated April 22, 2005
GENuclearEnery 26A6395 SH NO. I REV. I EIS IDENT:
REVISION STATUS SHEET DOCUMENT TITLE DRYER VIBRA LEGEND OR DESCRIPTION OF GROUPS TION INSTRUMENTATION TYPE:
FMF:
MPL NO:
DESIGN SPECIFICATION QUAD CITIES 2 N/A I -DENOTES CHANGE SAFETY-RELATED CLASSIFICATION CODE _Q_
REVISION I
RMCN05093 I
DH CHAN APR 22 2005 I RJA RMCN06071 ENGR: V RAMANI I
I I
PRINTS TO MADE BY APPROVALS GENERAL ELECTRIC COMPANY 11/08/04 DEC 07 2005 175 CURTNER AVENUE DH CHAN V. RAMANI SAN JOSE CALIFORNIA 95125 CHKD BY:
ISSUED 26A6395 DEC 07 2005 NA RJ AHMANN CONT ON SHEET 2 MS WORD (2/98)
W GENuclearEneiry 1.0 SCOPE 26A6395 SH NO. 2 REV. 1 1.1 Purpose This specification contains the engineering requirements for equipment and procedures associated with the steam dryer vibration and acoustic pressure measurement during reactor operation. This specification lists the types of tests to be performed, the reactor operating conditions during which measurements are to be made and the general requirements of the signal conditioning and data acquisition.
1.2 Contents The approximate location and the types of all vibration sensors are given in Section 5.3.
Section 5.5 provides general requirements of the vibration instrumentation, sensors and signal conditioning and data acquisition systems.
Material and fabrication requirements are given in Section 5.6. Section 6.0 gives a general summary of the types vibration testing to be performed.
1.3 Use This program will provide information on the dynamic pressure loads acting on the dryer hood, skirt and drain channel and will verify the adequacy of the new steam dryer design with respect to flow-induced vibration during power operation.
1.4 Application The vibration program described in this specification is applicable only to Quad Cities-2 Nuclear Power Plant.
2.0 APPLICABLE CODES AND STANDARDS The following codes and standards form a part of this specification to the extent specified herein:
ASME Boiler and Pressure Vessel Code,Section III, for Class 1 components, 1998 Edition with addenda thru Summer 2000.
3.0 REFERENCE DOCUMENT 3.1 Supporting Documents The following documents are to be used in conjunction with this specification for the design of the vibration instrumentation:
- a. Steam Dryer Instrumentation Philosophy GE-NE-0000-0030-1244-01
- b. Arc welding of austenitic stainless steel - P5OYPI02
W GENuclear enwy l26A6395 SH NO. 3 R EV. I
- c. Resistance Spot Welding of Strain
- Gages, Temperature Detectors and Shrouds - 21A8675 3.2 Supplemental Documents Supplemental documents shall be generated for the following areas. Note that a single document may contain more than one of the items listed below:
- a. Dryer vibration sensors location listing and drawings, Tablel, Figures 1-4
- b. Main steam line vibration sensors location listing and drawings, Table 2, Figures 5-8
- c. Vibration sensor string drawings - 352B2191, 352132192, 352B2193
- d. Vibration sensors installation drawing - 234C6821
- e. Vibration instrumentation installation specification - 26A6493
- f. Instrumentation and data acquisition wiring diagram - 105E3902
- g. Dryer hammer test specification - 26A6380
- h. Quad Cities Unit 2 Power Ascension Test Procedure for the Reactor Vessel Steam Dryer Replacement
- i. Data acquisition system specification - 26A6366 4.0 FUNCTION 4.1 The primary function of the vibration measurements program is to find the pressure loading on the dryer for normal and uprated power conditions and verify the integrity of the newly designed steam dryer to withstand flow induced vibration forces for extended operation. The detailed objectives are as follows:
- a. Determine the dryer as-built modal parameters: This will be achieved by impact testing of the dryer components and the results will yield natural frequencies, mode shapes and damping of the dryer components. In addition, the results will be useful to calibrate and fine-tune the finite element model of the dryer.
- b. Define the pressure loading: In order to define the pressure loading on the dryer due to turbulence, acoustics and other sources, several dynamic pressure sensors will be installed on the dryer. The results will provide the actual pressure loading on the dryer under various operating conditions, which can be applied to the analytical model to determine the stresses on the dryer components.
- c. Verify the new dryer design: Based on the past knowledge gained on different dryers and cracks found on some dryer components, selected areas of the dryer will be instrumented with strain gages and accelerometers to measure vibratory stresses
5.0 DE 5.1 5.2 5.3 GENuclearEnergy 26A6395 SH NO. 4 REV. 1 and displacement on the dryer during power operation. The measured values will be compared with the allowable values (acceptance criteria) obtained from the analytical model, to determine if the dryer vibration stresses are within allowable limits for long term operation.
- d. Determine the source of the pressure fluctuation: In order to identify the source of pressure fluctuation, main steam lines will be instrumented with strain gages on several locations from the reactor pressure vessel to the turbine. The alternating pressure within the pipe will result in alternating circumferential strain on the pipe, which will be measured by the strain gages.
The calculated dynamic pressure within the steam lines can be correlated with each other and the dryer pressure sensors to identify the sources.
The dynamic pressure measured at different locations will be used to validate the acoustic model.
Additional details for the objectives, recommended number of sensors and the components to be instrumented are specified in Reference 3.1.a.
- SIGN REQUIREMENT General The following paragraphs detail the overall requirements of the steam dryer vibration measurement program. The areas covered are the requirements for types of sensors, sensor locations on different dryer locations upon which measurements are to be made, signal conditioning, data acquisition, and recording systems.
Types of Sensors The types of sensors shall consist of dynamic pressure transducers to measure dynamic pressure, accelerometers to measure acceleration or displacement, and strain gages to measure dynamic strain at the installed location. The steam lines shall be installed with strain gages in order to obtain dynamic pressure within the pipe.
Dryer Sensor Locations 5.3.1 General The sensor locations and directions of measurement specified in the following paragraphs do not necessarily represent locations of maximum stresses or displacements.
The locations chosen in most cases are intended to provide adequate sensitivity for the identification of vibration mode shapes, since the maximum stress or amplitude locations are generally not accessible for sensor locations and may vary from mode to mode. Results of dynamic analyses and impact tests shall be evaluated to insure adequate sensitivity to expected vibration modes of instrumented components.
Minor changes to sensor locations specified herein may be made if results of the analyses show that an improvement in sensitivity is needed.
5.3.2 5.3.3 5.3.4 5.3.5 5.3.6 5.3.7 GENuclearEea 26A6395 SH NO.5 l
IREV.1 I
The specified sensor location azimuth and elevation are approximate and the final location shall be based on the completion of finite element modeling and modal analyses of the dryer components.
The sensors leads shall have sufficient allowances to install the sensors at their final determined locations. The sensor installation document shall be revised to show the final location of the sensors and their orientation.
Steam Dryer Displacement Measurements The displacements (absolute) of the steam dryer shall be obtained by double integrating the acceleration signals. There shall be a total of four accelerometers (Al through A4) located on top of the outer tie bar ends on four corners to measure overall horizontal whole dryer bank motion in two directions. The locations of the accelerometers are shown on Figure 3 and tabulated in Table 1.
Skirt Motion The radial motion of the skirt shall be measured by two accelerometers (A5 and.
A6) installed on the outer surface of the skirt. The acceleration signals shall be double integrated to measure skirt displacement at that location. The locations of these accelerometers are shown on Figures 1 and 2.
Skirt Vibration Strain The strain gage locations on the skirt shall be based on the expected maximum stress locations. Two strain gages, SI and S8, shall be installed in two different locations on the skirt to measure strains in the horizonal direction.
The locations of these strain gages are shown on Figure 1.
Drain Channel Vibration Strain There shall be one strain gage, S2, installed at the bottom of one drain channel, oriented horizontally. The location of this strain gage is shown on Figure 1.
Tie Bar Vibration Strain One strain gage, S6, shall be located on top of tie bar 5 along the tie bar axis and approximately midway between Bank A and Bank B on the 135 degree corner.
The location of this strain gage is shown on Figure 3.
Dryer Hood Vibration Strain 5.3.7.1 Two strain gages, S3 and S4, shall be located on the outer hood on the 270 degree side and oriented horizontally.
The locations of these strain gages are shown on Figures 2 and 3.
5.3.7.2 One strain gage, S5, shall be located on the end panel between Bank B and Bank C, oriented vertically. The location of this strain gage is shown on Figures 1 and 3.
5.3.8 GENuclearneriy 26A6395 SH NO. 6 REV. 1 5.3.7.3 One strain gage, S9, shall be located on the outer hood on the 90 degree side and oriented horizontally. The location of this strain gage is shown on Figures 1 and 3.
5.3.7.4 One strain gage, S7, shall be located on the curved transition from the top of Bank A to the front hood, between tie bars 4 and 5 and oriented vertically. The location of this strain gage is shown on Figure 3.
Dryer Pressure Sensors The pressure sensors will measure the dynamic pressure on the surface on which they are mounted. If they are to be located in a steam flow path, it will be necessary that the dynamic pressure sensor sensing element be flush with the surface on which the pressure readings are to be measured. Flush mounting may not be possible under certain circumstances due to sensor installation difficulty, sensor removal difficulty, sensor availability or requiring drilling large holes that may weaken the integrity of the dryer. If a pressure sensor cannot be flush mounted, it can be installed on the surface with a shield over it to minimize flow disturbances. Under such cases, it will be necessary to determine the correction factor for measured pressure to get the actual pressure on the plate by analytical or experimental means.
5.3.8.1 The dryer front hood on the 90 degree side shall have 12 pressure sensors, P1 through P12, located at three different elevations.
Additionally, in order to measure differential pressure across the hood plate, sensor P13 shall be installed adjacent to P3 to measure the fluctuating pressure inside the hood. The locations of these pressure transducers are shown on Figure 1.
5.3.8.2 Four pressure sensors, P18 through P21, shall be located on the 270 degree front hood at two different elevations. To measure fluctuating pressure inside the hood, sensor P14 shall be installed adjacent to P20.
The locations of these pressure transducers are shown on Figure 2.
5.3.8.3 Pressure sensor P15 shall be located on the end panel between Bank A and Bank B. Similarly, sensor P17 shall be located on the end panel between Bank B and Bank C.
The locations of these pressure transducers are shown on Figure 1.
5.3.8.4 Pressure sensors P16 and P27 shall be located on the hood plates of Banks B and C respectively between tie bars 2 and 3. The locations of these pressure transducers are shown on Figure 3.
5.3.8.5 Pressure sensors P22 and P24 shall be located to the left of the 90 degree skirt flat panel.
Additionally, sensor P23 shall be located between P22 and P24 and installed to measure the dynamic pressure inside the skirt. Sensor P25 shall be installed to the right of the 90 degree skirt similar to P22. The locations of these pressure transducers are shown on Figure 1.
5.4 5.5 GENuclarEneigy 26A6395 SH NO. 7 REV. I 5.3.8.6 Pressure sensor P26 shall be installed on the mast to measure the dynamic pressure in the dome region. The location of this pressure transducer is shown on Figure 4.
Main Steam Line Sensors All main steam lines shall have strain gages for indirect measurement of dynamic pressure. There shall be 56 strain gages at locations as listed in Table 2 and shown on Figures 5-8. Eight locations shall have four strain gages, two along the circumferential direction installed at diametrically opposite to each other, and the other two along the axial direction installed diametrically opposite to each other.
The remaining 12 locations shall have two gages at each location.
They shall be installed along the circumferential direction and diametrically opposite to each other. The circumferential strain gage pairs shall be combined to measure oscillating strain proportional to the pressure fluctuation with in the pipe. The axial strain gage pairs shall be combined to measure pipe vibration and to correct the measured circumferential strain for Poisson ratio.
Instrumentation 5.5.1 General 5.5.1.1 Vibration sensors shall consists of dynamic pressure transducers, accelerometers and strain gages. The sensors that are installed on the dryer shall be designed for reactor conditions, capable of operating at 1050 psi and 550 deg. F in a steam and water environment.
The sensors shall be hermetically sealed and consist of integral leads with mineral insulated cable. The sensors to be installed on the dryer shall be tested in an autoclave or equivalent to qualify for the intended use' and to determine the sensitivity deviation at high temperature.
A major portion of the sensor leads shall be contained inside a conduit for secondary protection and to exit the pressure boundary through the instrument nozzle. The strain gages that are installed outside the steam lines are required to be capable of operating at 550 deg. F at atmospheric pressure.
5.5.1.2 The vibration of the various steam dryer components instrumented shall be detected by the sensors mounted directly on those components.
The vibration amplitude signals from these sensors shall be amplified sufficiently to result in an appropriate overall basic sensitivity depending on the type of sensor used.
5.5.1.3 Electrical noise contaminating the signals shall be minimized by employing shielded cables, shielded penetration, proper grounding methods and using an isolation transformer power supply for the data acquisition system. The details shall be contained in the installation specification.
5.5.2 GENucdearEneIy 26A6395 SH NO. 8 REV. 1 5.5.1.4 The signals from all sensors shall be analyzed and recorded in a temporary data acquisition area designated for data acquisition and analysis equipment.
The signal conditioning, data acquisition &
analysis, data storage and data recording equipment shall be located outside the secondary containment in an environmentally controlled vibration recording room. The data shall be recorded on digital storage media and to a magnetic tape recorder for further analysis when needed and for data archival.
The tape recorder shall have voice recording capability for voice annotation.
5.5.1.5 Details regarding the data acquisition system shall be contained in the data acquisition system specification (Reference 3.2.i).
Data recording room requirement, cabling and grounding requirements, sensors installation on the dryer and field calibration requirements shall be contained in the Vibration Instrumentation Installation Specification.
Sensors and Signal Conditioning System 5.5.2.1 Acceleration Sensors The accelerometers shall be of the piezoelectric type and have ungrounded sensor elements with leads connected to a remote charge converter located inside the drywell. The remote charge converters shall be located close to the sensor leads emerging from the instrument nozzle. It shall withstand drywell temperatures up to a maximum of 1400 F. The accelerometer shall have a minimum sensitivity of 10 pC/g.
The signal conditioning system for the accelerometer shall have sufficient gain in order to a convenient overall sensitivity of 1.0 Volt per 1.0 g acceleration and 1 Volt per 10 mils displacement after double integration. The sensor and shall have a flat (+/- 5 percent) frequency response from 4Hz to 400Hz.
5.5.2.2 Strain Gages Strain Gages shall be weldable type resistive gages that require external carrier current excitation and demodulation in the signal conditioning system. The overall system shall have a minimum basic sensitivity of L.OV per 100 micro-strain at the gage and must have a flat (+/- 5 percent) frequency response from 0 to 400Hz. The signal conditioning system shall have a calibrated step-type gain control to provide an approximately 2:1 increase or decrease in gain per step change.
5.5.2.3 Pressure Transducers Pressure transducers shall be of the piezoelectric type and have ungrounded sensor elements with leads connected to a remote charge converter located closer to the sensor leads inside the drywell. The
GENucearEnergy 26A6395 SH NO. 9 desired overall system gain with sensor, charge converter and the signal conditioning system shall be L.OV output for I psi input and must have a flat (+/- 5 percent) frequency response from 5Hz to 400Hz.
5.5.3 Data Acquisition System (DAS) 5.5.3.1 The data acquisition systems shall consist of signal conditioning amplifiers for different types of sensors used, data analysis system and data recording devices.
The details of the data acquisition shall be contained in the data acquisition system specification (Reference 3.2.i).
The specification for the data acquisition area, power requirement and grounding requirement shall be contained in the installation specification.
5.5.3.2 The signal conditioning system for strain gages shall consist of strain gage amplifiers and bridge completion circuit, location of which can be internal or external to the and strain gage amplifiers. The accelerometer and pressure sensor signal conditioning system shall consist of remote charge converters (located closer to the sensor leads within the drywell),
galvanic isolation units and amplifiers.
The amplifiers for the accelerometers shall have double integration capability for displacement output.
5.5.3.3 The data recording device shall be a magnetic tape recorder and/or digital storage devices such as hard disk or optical storage media in conjunction with a work station or computer. The recording device shall be capable of storing all signals simultaneously or in groups. The frequency bandwidths for the storage devices shall be dc to 800 Hz minimum.
5.5.3.4 The data analysis system can be a workstation, a personal computer or a stand-alone device capable of performing spectral and time history analysis of the signals as a minimum. Additional analytical software may be used at the discretion of the test engineers if needed. In order to get a hard copy output, there shall be a color printer.
5.5.3.5 The signal conditioning amplifiers and data recording devices can be rack mounted in two or three cabinets as needed.
The workstation, computer and printing devices are not required to be rack mounted.
5.5.3.6 In order to check the signals and to make strain gage resistance measurements, it is required to have a two channel oscilloscope and a hand held digital multimeter.
5.5.3.7 The sensors and electronic equipment used for signal conditioning and data analysis shall adhere to NIST standards or other recognized international standards.
W 5.6 5.7 GENuckarEneiry Material and Processes 5.6.1 Pressure Retaining Components 26A6395 SH NO. 10 REV. I The materials, fabrication, and nondestructive examination of all pressure retaining components shall be in accordance with the requirements of the ASME Boiler and Pressure Vessel Code,Section III.
5.6.2 Material All vibration instrumentation mounting metal clamps, brackets, supports, post, plates, etc. shall be fabricated of solution-annealed austenitic stainless steel type 304L or 316L. Solution annealed type 304 with carbon content less than.03X may be tack welded. Solution-annealed type 304 or 316 may be used for non-welded applications. Locking tab washers of Inconel X-750 may be used fornon-welded applications.
5.6.3 Welding All welding, with the exception of strain gage and clip installation, shall be Gas Tungsten Arc Welding (GTAW). Welding and weld materials shall meet the requirements of the document "Arc welding of austenitic stainless steel",
Reference 3.1.b. The strain gages and clips shall be spot wvelded to the dryer per the resistance spot welding procedure "Resistance Spot Welding of Strain Gages, Temperature Detectors and Shrouds", Reference 3.1.c.
5.6.4 Brazing Braze alloy used for all code and non-code braze joints on hardware inside the vessel shall be SFA5.8, Class B Au-4.
5.6.5 Leak Test A helium mass spectrometer test shall be performed on all brazed and welded joints that are pressure sealed. The leak rate is required to be less than I x 109 STD cc/second.
Design Analysis The various components of the vibration monitoring system inside the reactor shall meet the following requirements:
5.7.1 Component Life All components shall be designed for a life of at least 24 months inside the reactor. The peak stress intensity due to flow-induced vibration shall not exceed I0 ksi.
Components that are not to be removed from the reactor following testing shall be designed to last for 40 years.
GENucearEneiy 26A6395 SH NO. 11 5.7.2 Pressure Boundaries The special flange and the penetration bolts through which the sensor leads exit the vessel form a part of the reactor coolant pressure boundary. Therefore it must be demonstrated that they meet the requirements of ASME Section III for a Class 1 vessel.
6.0 VIBRATION TESTING 6.1 Hammer Test The testing shall consist of impact testing the instrumented dryer components in air and water (skirt partially submerged in water to simulate reactor water level) to determine the natural frequencies and damping. The impact testing can be performed prior to moving the dryer to the reactor site. A static load test shall be performed at the same location by applying a static load at a selected location on the dryer. The details of these tests shall be contained in the Dryer Hammer Test Specification (Reference 3.2.g).
6.2 Power Operational Test Data shall be collected and recorded during power ascension per Quad Cities Unit 2 Power Ascension Test Procedure for the Reactor Vessel Steam Dryer Replacement, Reference 3.2.h.
Changes to the test plan may be made by the lead test engineer as needed with concurrence of the cognizant QA/QC personnel assigned in accordance with the QA Program in effect at the time of the test.
GENuclearEneigy 26A6395 SH NO. 12 REV. I Table-l IGE Nuclear Enera Quad Cities-2 New Dryer Vibration Instrumentation GE Company Proprietary Information Sensorl 6 Accelerometers, 4 Located on Upper Dryer Hood, 2 on Lower Skirt's Flat Plate A-1 Upper hood Bank A top, comer -135 deg, mounted on external tie bar end bracket, horizontal motion A-2 Upper hood Bank F top, comer -220 deg. Internal side of tie bar, horizontal motion A-3 Upper hood Bank F top, comer -310 deg. external to tie bar end bracket, horizontal motion A-4 Upper hood Bank A top, comer -50 deg. internal side of tie bar, horizontal motion A-5 Mounted -4" above skirt bottom at 90 deg, center, horizontal mounted for skirt motion A-6 Mounted -4" above skirt bottom at 270 deg, center, horizontal mounted for skirt motion Sensor 27 Pressure Transducers (3X4 grid mounted on outer hoods, route condultlcable on dryer surface)
P-1 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -17" below top of Bank A P-2 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -41" below top of Bank A P-3 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -65" below top of Bank A P-4. Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -17" below top of Bank A P-5 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -41 below top of Bank A P-6 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -65" below top of Bank A P-7 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -17" below top of Bank A P-8 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -41" below top of Bank A P-9 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -65" below top of Bank A P-10 Outer90deg hood BankA-grid 3X4. assembly mounted under coverplate, -17 belowtop ofBankA P-11 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -41" below top of Bank A P-12 Outer 90 deg hood Bank A-grid 3X4, assembly mounted under coverplate, -65" below top of Bank A P-13 Outer 90 deg hood Bank A, Internal pressurelextemal mounted CP211, 1.25" above P-3, under coverplate P-14 Outer 90 deg hood Bank F, Internal pressure/external mounted CP211, 1.25" above P-20, under coverplate P-15 Outer 90 deg hood Bank A side end panel, mounted under coverplate, centered hort, -65" below bank top P-16 Outer 90 deg hood Bank B, under coverplate, centered between tie bars 2&3. -17" down from top of bank P-17 Outer 90 deg hood Bank C side end panel, under coverplate, centered horizontally. -65" below bank top P-18 Outer 270 deg hood Bank F. assembly mounted under coverplate. -17" below top of Bank F P-19 Outer 270 deg hood Bank F. assembly mounted under coverplate, -65" below top of Bank F P-20 Outer 270 deg hood Bank F. assembly mounted under coverplate, -17" below top of Bank F P-21 Outer 270 deg hood Bank F. assembly mounted under coverplate. -65" below top of Bank F P-22 Outer 90 deg skirt. external, mounted under coverplate, -8" below mid ring, -6" left from left box beam P-23 Outer 90 deg skirt, Internal pressure/extemal mounted CP104, -17" below mid ring, -6" left of box beam P-24 Outer 90 deg skirt, external, mounted under coverplate, -33" below mid ring, -6" left from left box beam P-25 Outer 90 deg skirt, external, mounted under coverplate. -8" below mid ring. -6" right from right box beam P-26 Located on mast for dome pressure, mast bracket -54" above top of Bank C. between tie bars 1 and 2 P-27 Outer 90 deg hood Bank C, under coverplate, centered between tie bars 2&3, -17" down from top of bank Sensor Total 9 Strain Gages (Spot welded to drer surface, clips used to spot weld in attaching Mi cables to dryer)
S-1 Located on skirt, horizontal mounted, -45 deg azimuth. -33" up from bottom S-2 Located on drain channel. horizontal mounted, - deg azimuth, -6" up from bottom 5-3 On 270 deg front hood, mounted horizontal, -39" down from top of Bank F. between Tie Bars 3 and 4 S.4 On 270 deg front hood, mounted horizontal, -43" down from top of Bank F. -1' from vertical middle weld S-5 On bottom of end plate between Banks B/C -2" above mid ring, mounted vertical, -11.5" from right weld S-6 Located horizontal, axial with top of Tie Bar 5 at -135 deg azimuth, between Banks ANB, -15" from endplate S-7 Located on curved transition from top of Bank A to hood, -18" from end of Bank A, at -120 deg azimuth
-8 Located on 90 deg skirt. -33" below mid ring, horizontal, -1" from vertical weld of left front flat skirt plate S-9 Located on 90 deg front hood. -62" down from top of Bank A, -4" to the right of P9 centeriine String Sensors In String (Total of 12 Conduits with 4 Condults per Penetration Bolt)
A PiP2, P3 B
P4, PS, P6 C
P7, P8, P9 D
P10, P11, P12, P15 E
56 S7, P16 F
P22, P24, A5, 58 G
P25, S9, S1, S2 H
P17, S5, P26 J
P18, P19, P20, P21 K
S3, 54, A6, P14 (internal pressure measurement)
L A1,A4,A2,A3 M
P13, P23 (both Internal pressure measurements)
W GENulearfigy 26A6395 SHNO. 13 REV. I Table-2 Main Steam Line Strain Gage Locations Item Location MSL A MSL B MSL C MSL D Bridge DAS
__Input C hannels I
Near grating El. 651 '
MSL S7 & S9 2
I (Vertical Pipe)
(L)
Near grating El. 651 '
MSLS8&SIO 2
1 (Vertical Pipe)
(C) 2 Near grating El. 651' MSL Si & S3 2
(Vertical Pipe)
(L)
Near grating El. 651 '
MSL S2 & S4 2
(Vertical Pipe)
(C) 3 Near grating El. 651' MSLS31 &S33 2
(Vertical Pipe)
(L)
Near grating El. 651 '
MSL S32 & S34 2
(Vertical Pipe)
(C) 4 Near grating El. 651 '
MSL S37 & S39 2
1 (Vertical Pipe)
(L)
Near grating El. 651 '
MSL S38 & S40 2
(Vertical Pipe)
(C) 5 Near El. 622' between 450 MSL St l &
2 1
Elbows (450 Pipe)
Near El. 622' between 450 MSL S12 &
2 1
Elbows (45° Pipe)
S12A (C) 2 6
Between HPCI branch & Iu MSL S13 & S14 SRV (C)
(Horizontal Pipe)
( )
7 HPCI 10" branch pipe MSLS15&S16 2
(Vertical Pipe)
(C) 8 Below grating 614', 3 ft MSLS17& S18 2
below elbow (Vertical Pipe)
(C) 9 Before inboard MSIV (- 20 fl)
MSL S19 & S20 2
1 (Horizontal Pipe)
(C) 10 Near El. 622' between 450 MSL S5 & S5A 2
1 Elbows (450 Pipe)
(L)
Near El. 622' between 450 MSL S6 & S6A 2
1 Elbows (450 Pipe)
(C) 11 Near El. 622' between 450 MSL S35 &
2 Elbows (450 Pipe)
S35A (L)
Near El. 622' between 450 MSL S36 &
2 Elbows (450 Pipe)
S36A (C) 12 Near El. 622' between 450 MSL S41 &
2 elbows (450 Pipe)
S4 IA (L)
Near El. 622' between 450 MSL S42 &
elbows (450 Pipe)
S42A (C) 2 13 Afler outboard MSIV, - El.
600', 5' above horizontal MSLS21& S22 2
I
_ (Vertical Pipe)
(C) 14 ^30" D header (Horizontal Pipe)
MSL S23 & S24 2
15 30" D header (Horizontal Pipe)
MSL S25 & S26 2
(C)
W GENuclearEnetry 26A6395 SHNO. 14 REV. I Item Location MSL A MSL B MSL C MSL D Bridge DAS Ite Loatin ML AInput Channels 16 18" D Ring (Horizontal Pipe)
MSL S27 & S28 2
17 Riser to Turbine - before MSL S29 & S30 2
TCVITSV (Vertical Pipe)
(C) 18 Below grating 614', 3 ft MSL S43 & S44 2
below elbow (Vertical Pipe)
(C) 19 Below grating 614', 3 ft MSL S45 & S46 2
below elbow (Vertical Pipe)
(C) 20 Below grating 614', 3 ft MSLS47 & S48 2
below elbow (Vertical Pipe)
(C)
Notes:
I) Each pair includes two gages in same orientation (longitudinal/axial or circumferential/hoop) 180 0 apart.
- 2) Where specified, strain gage locations approximate and may be changed to accommodate insulation removal. Strain gages should be located at least 30" away from both ends of elbows or bends. Strain gages shall be located at least 9" from any pipe weld or piping attachment.
- 3) Bridge completion board inputs required is 56 and total DAS channels required is 28.
W GENuclearEnetgy 26A6395 SH NO. 15 REV. 1 145.05 (TIE BAR) 148.951' (MID-BEAM)
BOTTOM OF INSTRUMENT FLANGE TO TOP OF TIE BAR 145.05' OR 148.951 TO TOP OF 4' MID-BEAM Figure 1: Dryer Sensor Locations - Side View from 90 Degrees
W GENuclearEnetgy 26A6395 SHNO. 16 REV. I Figure 2: Dryer Sensor Locations - Side View from 270 Degrees
W GENucdearEnetgy 26A6395 SH NO. 17 IREV. 1 3 ACCELEROMETERS MOUNTED IN OPPOSITE DIRECTION DUE TO ACCESS AND SAFETY.
I80-TABLE SENSOR MOUNTIN SENSOR J MOUNT DETAIL Al-A47 J
S6 H
S7 H
S8 J IS9 I-G
- -3
- S-4
-A-6 270-2-14 s-MAKE FROM 124D1518GOO1 (NEV STEAM DRYER) 0 Figure 3: Dryer Sensor Locations - Top View
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