ML060940258
| ML060940258 | |
| Person / Time | |
|---|---|
| Site: | Palo Verde  |
| Issue date: | 03/31/2006 |
| From: | Mauldin D Arizona Public Service Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| 102-05453-CDM/SAB/GAM | |
| Download: ML060940258 (31) | |
Text
Enclosure 5 to this letter contains proprietary information and should be withheld from public disclosure under 10 CFR 2.390 LAM David Mauldin Mail Station 7605 Palo Verde Nuclear Vice President Tel: 623-393-5553 PO Box 52034 Generating Station Nuclear Engineering Fax: 623-393-6077 Phoenix, Arizona 85072-2034 102-05453-CDM/SAB/GAM March 31, 2005 Attn: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001
Dear Sirs:
Subject:
Palo Verde Nuclear Generating Station (PVNGS)
Unit 1 Docket No. STN 50-528 References Associated with Request for Amendment to Unit I Facility Operating License under Exigent Circumstances to Allow the Use of Compensatory Measures During Certain Reactor Coolant Pump Operation In letter no. 102-05452, dated March 31, 2006, Arizona Public Service Company (AFS) submitted a request for a PVNGS Unit 1 facility operating license amendment under exigent circumstances to change the Updated Final Safety Analysis Report (UFSARl, Section 3.1.11, "Criterion 15 - Reactor Coolant System Design." The proposed UFSAR change would allow the use of an operator action as a compensatory measure to prevent exceeding the train A shutdown cooling (SDC) system vibration operability limit if a loop 2 reactor coolant pump (RCP) should trip or have a sheared shaft during four-RCP operation. This compensatory measure would only be used during a one-time 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> period for SDC system vibration root cause data collection in Mode 3. After the root cause data collection is completed, a modification will be implemented to reduce the SDC system vibration.
Enclosed are the following documents that were referenced in the amendment request: :Appendix F to PVNGS Study 13-MS-B046, Experimental Investigation of Acoustic Coupling of the PVNGS Unit 1 SDC Suction Line, Revision 1, March 31, 2006.
A member of the STARS (Strategic Teaming and Resource Sharing) Alliance Callaway
- Comanche Peak
- Diablo Canyon
- Palo Verde
- South Texas Project
- Wolf Creek
U. S. Nuclear Regulatory Commission ATTN: Document Control Desk References for Request for Amendment to Unit I Facility Operating License under Exigent Circumstances Page 2 : Relevant pages from Nuclear Power Station Qualification Type Test Report "Limitorque Valve Actuators with Type LR Motor for Combustion Engineering PWR" (SDOC 13-N001-1.01-0829-1),
March 17, 1986 (Report B0234).
The following documents referenced in the documents listed above are also enclosed: : Ziada, S. & BuhIman, E. T., 1992 Self-Excited Resonances of Two Side Branches in Close Proximity. Journal of Fluids and Structures 6, 583-601. : Ziada, S. & Shine, S., 1999 Strouhal numbers of flow-excited acoustic resonance of closed side branches. Journal of Fluids and Structures 13, 127-142. Westinghouse Electric Company Calculation CN-PS-03-32, RCS' Part Loop Flow Rates and Pressure Losses for PVNGS Units 1, 2, and 3 to Support SGR/PU, Revision 0 (MN-725-A00656)
(Proprietary).
Please note that the information contained in Enclosure 5, Westinghouse Electric Company Calculation CN-PS-03-32, is considered by Westinghouse to be proprietary in its entirety. Therefore, Westinghouse requests that this calculation be withheld from public disclosure pursuant 10 CFR 2.390(a)(4). Attachment 1 to Enclosure 5 contains an affidavit from Westinghouse that sets forth the basis on which the information mail be withheld from public disclosure pursuant to 10 CFR 2.390. A redacted, non-proprietary version of this report is not available as it would be essentially all blank pages.
No commitments are being made to the NRC by this letter. If you have any questions, please contact Thomas N. Weber at (623) 393-5764.
Sincerely,
[Original Signed by David Mauldin]
CDM/SAB/GAM/
Enclosures:
As stated
U. S. Nuclear Regulatory Commission ATTN: Document Control Desk References for Request for Amendment to Unit 1 Facility Operating License under Exigent Circumstances Page 3 cc:
(all without enclosures)
B. S. Mallett NRC Region IV Regional Administrator M. B. Fields NRC NRR Project Manager G. G. Warnick NRC Senior Resident Inspector for PVNGS A. V. Godwin Arizona Radiation Regulatory Agency (ARRA)
ENCLOSURE 1 Appendix F to PVNGS Study 13-MS-B046, Experimental Investigation of Acoustic Coupling of the PVNGS Unit 1 SDC Suction Line, Revision 1, March 31, 2006.
13-MS-B046 - Appendix F Supplemental Data and Evaluation to Support NRC Submittal Palo Verde Nuclear Generating Station (PVNGS), Unit 1, Docket No. STN 50-528 -
Request for Amendment to Unit I Facility Operating License under Exigent Circumstances to Allow the Use of Compensatory Measures During Certain Reactor Coolant Pump Operation, dated March 31, 2006 Applicability This appendix provides supporting calculations and assessment to establish a pre-determined vibration operability limit in the event of a failure of a single RCP during performance of Unit 1 vibration testing as described in the above referenced submittal. The conclusions contained in this study are provided only for assessment of available margin in the unlikely event that vibration levels exceed the design limit for long term operation of 2.25 ips (administratively controlled to 2.0 ips) as a result of the loss of RCP 2A or 2B during this one-time evolution. These conclusions do not constitute design limits and may not be used as design input.
Appendix F - Section 1 Evaluation for High Level Vibration with 3 of 4 RCP Operation Unit 1 experienced higher level vibration on the Train 'A' SDC suction line during plant testing as a result on increased flow in the Loop 1 reactor coolant system hot-leg when RCP 2A was secured. The following discussion evaluates the potential for the same high level vibration conditions to occur in the event that a single RCP in loop 2 is lost during performance of additional testing for which NRC approval is required in accordance with a submittal dated March 31, 2006.
The condition in Unit 1 has been evaluated since it was first identified in March, 2001.
Deta collected as part of these evaluation efforts supports the hypothesis that the vibration is the result of a flow induced excitation of the fundamental acoustic frequency of the SDC suction line. The system is believed to be excited by a pressure disturbance originating at the suction line nozzle resulting from a coupled interaction between instabilities within the flow shear layer over the nozzle and the refracted standing wave in the line. References 1 and 2 provide supplemental details of this relatively common condition in power plant process piping.
Recent test data during the Unit 1 March, 2006 SNOW demonstrated that increased flow through the Loop 1 hot-leg produced a significant increase in the SDC suction line vibration. While the test conditions were expected to produce an increase in amplitude, the final level could not be established with certainty beforehand. As a result of the actual measured vibration amplitude, Unit 1 has been shutdown since abnormal conditions could result in the same RCP operating conditions (i.e. loss of RCP 2A or RC;P 2B) which would cause sustain high level vibration and conditions beyond the design limits.
Additional data collection is still needed at NOP/NOT with four RCP operation to support thE! long term resolution and root cause evaluation efforts. Therefore, to support this effort, an estimate is made here of the vibration levels that would occur in the event loss of either loop 2 pump.
Significant research has been documented regarding the coupled interaction resulting in large amplification of the pressure disturbance at the branch line (SDC suction line) nozzle. Palo Verde Engineering has performed scaled model tests for the Unit I design
and operating conditions in an attempt to substantiate this phenomenological hypothesis. The results of those scaled model tests are documented in the body of this study (PVNGS Study 13-MS-B046). The results of these scaled tests are presented below (Figure 1) and correlate very well with similar experimental results documented in References 3 - 6.
The data presented in Figure 1 suggests that the degree of coupling increases significantly when the Strouhal Number is between approximately 0.25 and 0.35. The Strouhal Number is defined as St =fd/U Assuming that the acoustic frequency (f) and nozzle opening (d) remain unchanged, an increase in St from 0.35 to 0.45 represents a proportional decrease in velocity of approximately 29%. Within this region of the curve, the relative increase in pressure response is approximately a factor of 5 (AP* increased from 0.2 to 1.0).
1.20E.00 I.OOE+00 8.O0E.01 CB 6.00E.01 C-.
.C 0
0 0a 0
0 III Approxinate 40%
Increase In flow U3 a
a U 1
U 4.OOE-01 2.00E01 O.OOE+00 _
0.1(1 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 St = dU Figure 1 - PVNGS Study 13-MS-B046 results for scaled model testing of the Unit 1 SDC suction line. Maximum coupling conditions are shown to occur at a Strouhal Number (St) range of 0.25 to 0.45.
During the Unit 1 March, 2006 SNOW, RCP 2A was secured with RCPs 1A, 1 B, and 2E3 in operation. Initial vibration amplitude immediately before RCP 2A was stopped was approximately 1.3 IPS. Flow subsequently increased in the Unit 1, Loop 1 hot-leg by approximately 7% [Ref. 71 when RCP 2A was stopped. Conservatively assuming that the initial Unit 1 conditions (prior to stopping RCP 2A) were consistent with coupling within this maximum range, an increase in bulk hot-leg flow should have produced an increase in acoustic pressure, and hence, vibration amplitude, on the order of Azvm j
A +A[(7%/29%,)x5(Ao)]
-2.35Ao Consequently, an increase in hot-leg flow velocity of 7% should have doubled the vibration amplitude. This is consistent with the vibration amplitudes noted during the evolution where the amplitude increased from 1.3 IPS to a range of 2.5 to 3.0 IPS.
Since the test data acquired during the Unit 1 SNOW is consistent with the analytical approximation, the maximum vibration level in the event of a loss of RCP during the proposed test evolution would be considered repeatable given the same system conditions (i.e. pump configuration). Specifically, with Unit 1 in Mode 3 at NOP/NOT, shDuld either RCP 2A or RCP 2B fail, the resultant vibration level should be approximately twice the original baseline vibration level. UIC13 vibration data indicates an initial vibration level at NOP/NOT (with four RCP operation) to be between 0.8 ips and 1.3 ips. Hence, maximum vibration levels in the three-RCP configuration should be consistent with those observed during the Unit 1 March 18, 2006 tests.
Appendix F - Section 1 References
- 1. Blevins, R. D., Flow Induced Vibration, Second Edition, Krieger Publishing Co., 2001.
- 2. Au-Yang, M. K., Flow Induced Vibration of Power and Process Plant Components, Professional Engineering Publishing, Ltd., 2001.
- 3. Ziada, S. & Buhlman, E. T., 1992 Self-Excited Resonances of Two Side Branches in Close Proximity. Journal of Fluids and Structures 6, 583-601.
- 4. Ziada, S. & Shine, S., 1999 Strouhal numbers of flow-excited acoustic resonance of closed side branches. Journal of Fluids and Structures 13, 127-142.
- 5. Selamet, A., Kurniawan, D., & Knotts, B. D. 2002 Whistles with a Generic Sidebranch: Production and Suppression. Journal of Sound and Vibration 250(2),
277-298.
- 6. Weaver, D. S. & MacLeod, G. O., Entrance port rounding effects on acoustic resonance in safety relief valves. ASME PVP-Vol. 389, Flow Induced Vibration --
1999.
- 7. Westinghouse Electric Company Calculation CN-PS-03-32, RCS Part Loop Flow Rates and Pressure Losses for PVNGS Units 1, 2, and 3 to Support SGR/PU, Revision 0 (MN-725-A00656).
Appendix F - Section 2 Justification for Increasing the UV-651 Actuator Vibration Limits During Short Time Durations
1.0 Background
The operation vibration limits on the SMB-3 actuator for MOV 1JSIAUV0651 is currently maintained such that the acceleration at the actuator does not exceed a value of 1.25 G's which is equivalent to a velocity of 2.25 ips at VI H. The basis for this limit was docu-mented in Ref. 2.
During Unit 1 Cycle 13 SNOW -Vibration Data Collection, performed on March 18 at approximately 10:16 AM, shutdown of RCP 2A have resulted in the VIH velocity parame-ter reaching a maximum value of 3.05 ips for a duration estimated to be approximately 1 minute in total duration (Ref. 3). Per conversation with Charles Hawkins (Vibe tech, Pmd) the pump was secured at 10:16:37 and at 10:17:15 the pump speed was less than 1100 rpm. During this period the vibrations went from 1.3 ips to 3.05 ips. The pump was restarted and pump speed was reported above 100 rpm by 10:18:15 and at full speed by 10:18:25 (see attachment). Thus, the duration of vibrations at a maximum value of 3.05 ips occurred between the 10:17:15 and 10:18:25 period which is approximately 67 sec-onds.
2.0 Evaluation This evaluation provides a new predetermined operability vibration limit for short term intervals which consist of an average velocity value of 5.27 ips at the VI H location for a maximum duration of 10 minutes with a peaking value of 6 ips for 3 minutes of this 110 minute duration. These new short term predetermined operability vibration limits are larger than the 3.05 ips maximum vibration experienced during the 67 second interval which is conservative.
The acceptability of the elevated vibration level of 5.27 ips at Vi H for a duration of as much as 10 minutes with a peaking value of 6 ips for 3 minutes, of the 10 minute duration, is based on the assessment of the modes of failure that can occur, due to vibration aging, performed in Ref. 1. That is, inspection of the actuator parts and mode of operation ot the valve (i.e., closed position) and the use of Loctite in various parts and fasteners to harden the actuator. In addition, credit is taken for the vibration seismic testing that was per-formed as part of the Seismic qualification of the actuator performed by Limitorque where an SMB actuator was tested for approximately 11 minutes at 3 to 4.5 G's (Ref. 4).
In order to further validate that no significant aging of the actuator occurred during the short elevated vibration excursion on March 18, 2006, an inspection of the actuator was performed under procedure 39 MT-9ZZ02, Rev 016, section 3.2. This section of the-rafer-enced procedure performed a non-intrusive inspection of the limit switch compartment components for evidence of fastener loosening, wear of contacts, gaskets, and nonmetal-lic components. The inspections revealed no anomalies or damage caused by the high level vibration excursion (see CRDR 2877313, WO 2877318, Ref. 8)
As stated earlier, credit is taken for the vibration seismic testing that was performed as part of the Environmental and Seismic qualification of the actuator performed by Limi-
torque in various reports. Specifically, the testing that Limitorque did in behalf of Combus-tion Engineering under Report B0234, "Nuclear Power station Qualification Type Test:
Report Limitorque Valve Actuators with Type LR Motor for Combustion Engineering PWR" (SDOC 13-N001-1.01-0829-1, Pages A101 thru A119 and Appendix D, Ref. 4). In this report an SMB-00 actuator and motor are qualified which is an average midsize unit.
Limitorque in page A119 indicates that due to similarity of construction, design stress lev-els, clearances and tolerances all other sizes from smallest to largest of the type SM 3, SB, SBD and SMB/HBC actuators are also equally qualified. The actuator for the MOV 1JSIAUVO651 is an SMB-3 and as such is also considered qualified by this report.
Appendix D of the referenced Limitorque report documents the seismic testing that was performed by NTS/Acton under report No. 20394-86N (SDOC 13-NO01-1.01-0829-1, Pages A131 thru A146). Excerpts of the relevant information from Appendix D is included as follows:
Sine Sweep (OBE) Section 3.4.
The report indicates that the sine sweep was performed in the vertical, horizontal (HI) direction, and in the horizontal H2 direction for the actuator. The actuator was exposed to two sinusoidal sweeps from 2 to 35 Hz to 2 Hz, at a rate of one octave per minute. The level of input was 3.0 G's except for the range from 2 to 4 Hz which was at the shaker table limits. The first sweep was conducted with the actuator in the closed position arid the second sweep was conducted with the actuator in the open position.
From the write-up it is deduced that the duration of the tests are as depicted below which was confirmed via telecom with NTS/Acton on March 22, 2006 (Ref. 6, Attached):
Duration of Sine Sweep performed at 3 g at each octave First Sweep with Actuator in the Closed position 2 to 4 Hz------------------------1 minute 4 to 8 Hz------------------------1 minute 8 to 16 Hz-----------------------1 minute 16 to 32 Hz---------------------1 minute Second Sweep with Actuator in the Open position 32 to 16 Hz----------------------1 minute 16 to 8 Hz ----------------------- 1 minute 8 to 4 Hz-------------------------1 minute 4 to 2 Hz-------------------------1 minute Thus, it is concluded that the Sine Sweep OBE test was performed for a duration of 8 minutes in each axis at a level of 3.g's except for the range from 2 to 4 Hz (shaker taDle displacement limits).
Similarly, Section 3.5 Sine Dwell Test (SSE) indicates that the dwell test consisted of 15 second sinusoidal dwell at 1/3 octaves. The acceleration during each dwell was 4.5 cl except where limited at the 4 Hz and lower frequencies. During each dwell the actuator was operated through one complete stroke-open stroke cycle.
Duration of Sine Dwell performed at 4.5 g at each 1/3 octave 2 Hz--------------------------------15 seconds 2.5 Hz--------------------------------15 seconds 3.15 Hz--------------------------------15 seconds 4.0 Hz--------------------------------15 seconds 5.0 Hz--------------------------------15 seconds 6.3 Hz--------------------------------15 seconds 8.0 Hz--------------------------------15 seconds 10 Hz--------------------------------15 seconds 12.5 Hz--------------------------------15 seconds 16 Hz--------------------------------15 seconds 20 Hz--------------------------------15 seconds 25 Hz--------------------------------15 seconds 31.5 Hz--------------------------------15 seconds Thus, it is concluded that the Sine Dwell SSE test was performed for a duration of 195 seconds in each axis at a level of 4.5 G's except for the range from 2 to 4 Hz (shaker table displacement limits).
These vibration tests provide the predetermined operability limits for short term vibration excursions for 1JSIAUVO651 as further demonstrated below:
Velocity in Inches Per Second (ips) = V = 2(7t)(f)(d)
Acceleration in G's = a = (2(i)(f)) (d) 386.4 Displacement in inches = d 2
a(386.4)
(2()(0)2 The amplification ratio from the actuator CG> to the reference point V1 H = 1.30 to 1.40 This is based on actual measurements of the accelerometers at the actuator locations V3H, V4H and V1 H at the valve yoke clamp in the axial direction of the pipe. At lower fre-quencies of forcing function excitation, the amplification factor is lower as described in Ref.2 based on actual hand held measurements at frequency values of 24.23 Hz. (arnpli-fication = 1.30 to 1.313, Table 1, Ref. 2). Also the analytical calculated value in Ref.2 for a frequency of 24.21 Hz is equal to 1.34 and can go as high as 1.37 at 25 Hz.
During the test data collection on March, 18, the reported frequency in the PXI system was 24.26 Hz so the corresponding amplification factor for this excursion would be 1.31, however for conservatism and to bound higher frequencies a value of 1.40 is utilized
- 1. Evaluation of OBE Testing The OBE seismic tests referenced earlier tested the actuator to 3 G's at 1 octave freq Jen-cies for a period of 1 minute from 2 to 35 Hz. Except that there was a limitation for the range from 2 to 4 Hz due to the shaker table limits. Note that during the OBE test the
actuator was tested half of the time closed and the other half in the open position. The Sl-651 valve is in the closed position which is the preferred position from the vibration aging point of view since the internal components of the actuator are preloaded minimizing wear of the parts. Thus, the OBE test with the actuator open is bounding and is conservative to be utilized in this evaluation.
In order to determine the range of displacements achieved at various frequencies during the test when subjected to 3 g acceleration and the equivalent acceleration at the fre.-
quency of interest for SI-0651 (i.e., 24 to 25 Hz) the following evaluation is performed:
Equivalency of seismic test at 3G's and 5 Hz prior to reaching the shaker table limitations at the 2 to 4 Hz range.
Calculate displacement 0 to peak = d = a(386.4) = 3(386.4) = 1.1745152 in (2(7r)(f))2 (2(xt)5)2 as compared to the displacement at the same acceleration except at 32 Hz d = a(386.4)
= 3(386.4)
= 0.02867469 in (2(2r)(f))
(2(Tr)32)2 Conservatively, assuming that the displacement of 1.17 inches (0 to peak) at 5 Hz is the shaker table limit and equivalent acceleration at the MOV SI-0651 forcing frequency of 24 to 25 Hz can be calculated.
The corresponding acceleration at the operator center of gravity =
a = (2(-n) (f)2 (d)
(2(7n)(25)) 2(1.1745152) 75 Gs This equivalent 386.4 386.4 level of acceleration is significantly larger than the 3G's imposed at the 24 to 25 HZ fre-quency range of interest. Similarly, the equivalent acceleration at the operator for the high frequencies (i.e., > 25 Hz) can be calculated by assuming the lower displacement value of 0.0286 inches.
a = (2(7)(f))2 (d) = (2(nr)(25)) 2(0.02867469)
= 1.8310547 Gs 386.4 386.4 The duration of time which is spent at the lower frequencies 2 to 24 hz represents 7 min-utes out of the total 8 minutes of OBE testing. During this period the equivalent accelera-tion at the frequency of interest, for SI-651 of 24 Hz to 25 Hz, is significantly higher than 3 G's so assuming an overall acceleration of 3 G's for the entire duration of 8 minutes for the 24 to 25 Hz range is conservative.
- 2. Evaluation of SSE Testinco For the SSE test the duration was 195 seconds at 4.5 G's with 180 seconds spent in the range from 2 to 25 Hz and only 15 seconds at 31.5 Hz. Thus, it is conservative to assume that the equivalent acceleration for the MOV SI-0651 at the 24 to 25 HZ range is 4.5 G's for a duration of 180 seconds or 3 minutes.
- 3. Results of Combined OBE & SSE Testina Based on the above, the actuator for MOV Sl-0651 is considered qualified for 3 G's for a duration of 8 minutes plus 3 minutes at an acceleration of 4.5 G's. This would be equiva-lent to 11 minutes at 3 G's with a maximum level of 4.5 G's during that 11 minute period.
Thus, for the 3 G's acceleration the expected 0 to peak displacement for MOV SI-0651 at the actuator CG =
d = a(386.4) = 3(386.4) = 0.04698061 in (2(T)(f))2 (2(7t)25)2 and the corresponding maximum velocity at the actuator CG. = V = 2(7s)(f)(d)
V = 2(7)(f)(d) = 2(7r)(25)(0.04698061) = 7.3796964 ips and the velocity at the yoke clamp V1H =
7.3796964 = 5.2712117 ips 1.40 1.40 Similarly, for the peak of 4.5 G's the expected 0 to peak displacement for MOV SI-0651 at the actuator CG
d = a(386.4) = 4.5(386.4) = 0.07047091 in (2(7) (f))2 (2(,)25)2 and the corresponding maximum velocity at the actuator CG. = V = 2(7r)(f)(d)
V = 2(r)(f)(d) = 2(n)(25)(0.07047091) = 11.069545...ips and the velocity at the yoke clamp VIH =
11.069545 7.9068176 ips 1.40 1.4 In order to introduce additional margin to the analysis performed above and to account for potential instrument inaccuracy, the 11 minute qualified duration is cut to 10 minutes and the peak velocity at V1 H for the 3 minute duration within the 10 minute interval is reduced from 7.90 ips to 6 ips. This reduction in V1 H velocity from 7.90 ips to 6 ips is equivalent to reducing the 4.5 G's value to 3.41 G's at the actuator CG.
The valve assembly is analyzed for an equivalent acceleration value of 5.65 G horizontal resultant and 5.65 G in the vertical direction (Ref. 7) which bounds the 3.41 G's allowed in the above evaluation.
3.0 Conclusion The actuator for MOV 1 JSIAUVO651 is determined to be operable for short term elevated vibration excursions of a maximum duration of 10 minutes. The average allowed vibration for the period of 10 minutes, at the valve yoke location called V1 H, is 5.27 ips with a max-imum excursion of 6 ips for a duration of 3 minutes within the 10 minute interval at a fre-quency of 24 to 25 Hz.
4.0 Appendix F - Section 2 References
- 1. Results of Phase I & Phase II Mechanical Inspection of Actuator IJSIAUVO65 1, Work Order 2557793 (Significant CRDR 2557486).
- 2. Calculation 01-MC-SI-509.
- 3. Communication with Chuck Hawkins (Pdm) on 3/18/06, regarding vibration experi-enced during the RCP 2A manipulation (see attached RCP Data, Attachment 2).
- 4. Nuclear Power station Qualification Type Test Report LimiTorque Valve Actuators with Type LR Motor for Combustion Engineering PWR" (SDOC 13-N001-1.01-0829-1)
- 5. Procedure 39 MT-9Z02, Rev 016.
- 6. Telecom with NTS/Acton Test Engineers on March 22, 2006 (Attachment 1).
- 7. Vendor Seismic Report, NSR 77850, Rev K, SDOC 01-N0O1-1105-38-5
- 8. CRDR 2877313, WO 2877318, Inspection of 1SI-0651 During Unit 1 Cycle 13 SNOW.
Test Report No. 2C'934-86N, Seismic Testing of an SMB Actuator.
Page I of 2 Borrero, Winston G(Z98820) (2 pages)
From:
Charles Pilotte [charlesp@ntscorp.com]
Sent:
Wednesday, March 22, 2006 1:30 PM To:
Borrero, Winston G(Z98820)
Subject:
RE: Test Report No. 20934-86N, Seismic Testing of an SMB Actuator.
- Winston, I was in error on one part. During the sine sweep at 3 g's we did only one cycle not two. From 2-35 the actuator was opened. At 35 HZ we closed the actuator and swept back down to two hertz. Thus the time is 8 minutes per axis. Sorry, for the error. Everything else is as you stated.
From: Winston.Borrero@aps.com [maiito:Winston.Borrero@aps.com]
Sent: Wednesday, March 22, 2006 1:47 PM To: Charles.Pilotte@NTScorp.com; Steve.Eisenberg@NTScorp.com
Subject:
Test Repoit No. 20934-86N, Seismic Testing of an SMB Actuator.
Importance: High Gentlemen, This is to confirm our conversation today regarding the subject report dated September, 03, 1985. Limitorque in contract with Combustion Engineering, in this report addresses the qualification of SMB & SB actuators by testing of a mid-size unit (SMB-00-1 5).
National Technical Systems (NTS/Acton) performed the seismic test simulations under contract to Limitorque in 1985. The sections of the report that I need clarification on is the tests duration during the OBE & SSE simulations as described in sections 3.4 and Section 3.5.
Sine Sweep (OBE) Section 3.4.
The report indicates that the sine sweep was performed in the vertical, horizontal (HI) direction, and in the horizontal H2 direction for the actuator. The actuator was exposed to two sinusoidal sweeps from 2 to 35 Hz to 2 Hz, at a rate of one octave per minute. The level of input was 3.0 g except for the range from 2 to 4 Hz which was at the shaker table limits. The first sweep was conducted with the actuator in the closed position and the second sweep was conducted with the actuator in the open position.
From the write-up it is deduced that the duration of the tests are as follows:
Duration of Sine Sweep performed at 3 g at each octave First Sweep with Actuator in the Closed position 2 to 4 Hz----------------------1 minute 2 to 4 1 4 to 8 minute 4 to 8 1 8 to 16 Hz------ -------
-1 minute 8 to 1 16 to 32 Hz- -----
-1 minute 16 to 32 to 16 Hz ----- -----------
1 minute 32 to 16 to 8 Hz ----------------- 1 minute 16 to E 8 to 4 Hz------------1 minute 8 to 4 1 4 to 2 Hz------------ -------- 1 minute 4 to 2 1 Second Sweep with Actuator in the Open Position Az-------------------
-1 minute
-z---------------------1 minute 3----1 minute 32 Hz----------------------1 minute 16 Hz-----------------------1 minute 3 Hz-----------------------1 minute Az------------------1 minute Az -
1 minute Thus, it is concluded that the Sine Sweep OBE test was performed for a duration of 16 minutes in each axis at a level of 3.g's except for the range from 2 to 4 Hz (shaker table displacement limits).
Similarly, Section 3.5 Sine Dwell Test (SSE) indicates that the dwell test consisted of 15 second sinusoidal dwell at 1/3 octaves. The acceleration during Each dwell was 4.5 g except where limited at the 4 Hz and lower frequencies. During each dwell the actuator was operated through one complete stroke-open stroke cycle.
Duration of Sine Dwell performed at 4.5 g at each 1/3 octave 2 Hz-----------------------15 seconds 2.5 Hz-- -------
15 seconds 3.15 Hz-------------------------15 seconds 3/22/2006
Test Report No. 2C934-86N, Seismic Testing of an SMB Actuator.
Page 2 of 2 4.0 Hz-------------------------------15 seconds 5.0 Hz---------- - --------
15 seconds 6.3 Hz-----------------
15 seconds 8.0 Hz---------------------------15 seconds 10 seconds 12.5 Hz--------------------------- 15 seconds 16 Hz - - ------------------- - ----15 seconds 20 Hz-------------- -------
15 seconds 25 Hz---- -------
15 seconds 31.5 Hz-------- -
15 seconds Thus, it is concluded that the Sine Dwell SSE test was performed for a duration of 195 seconds in each axis at a level of 4.5 g's except for the range from 2 to 4 Hz (shaker table displacement limits).
If you agree with the above statement please reply to this e-mail indicating your concurrence.
I appreciate your great support and cooperation in this effort Sincerely, Winston G. Borrero Senior Consulting Engineer Palo Verde Nuclear Generation Station (623) 393-6843 "MMS <apsc.com>" made the following annotations.
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3/22/2006
New PRot Session2 - Tabular List [New Plot Group] Plot 1 Company: None Job
Reference:
Data Problem: INVALID KPH Point:
Train:
UI_RCP2A_XVibratio Unit 1 - RCP 2A Probe Angle:
I_150 Left Variable Name From Direct 18Mar2006 10:16:17 To 18Mar2006 10:18:25 Plot Number:
Enterprise: PVIDS1 f Run Type:
7 '
Historical Speed Unit:
RPM Amp Unit:
mil pp (12 pages)
Sample Date Speed Direct I
2 3
4 5
6 7
8 9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 18Mar2006 10:16:17 18Mar2006 10:16:21 18Mar2006 10:16:21 18Mar2006 10:16:25 18Mar2006 10:16:25 18Mar2006 10:16:29 18Mar2006 10:16:29 18Mar2006 10:16:33 18Mar2006 10:16:33 18Mar2006 10:16:37
- 18Mar2006 10:16:37 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:39 18Mar2006 10:16:40 18Mar2006 10:16:40 18Mar2006 10:16:40 18Mar2006 10:16:40 18Mar2006 10:16:40 1190 1190 1190 1190 1190 1190 1190 1190 1190 1190 1190 1164 1160 1156 1152 1148 1144 1136 1132 1128 1124 1120 1116 1112 1104 3.13 3.22 3.22 3.11 3.11 3.01 3.01 3.08 3.08 3.12 3.12 2.98 2.98 2.98 2.98 2.98 2.98 2.98 2.83 2.83 2.83 2.83 2.83 2.83 2.83 0A
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-'.comments 03/1812006 RCP2A SHUT DOWN CHUCK HAWKINS P
.a.
..1.
Page 1
New Plot Session2 - Tabular List [New Plot Group) Plot 1 Plot Number:_
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 26 18Mar2006 10:16:40 1100 2.83 27 18Mar2006 10:16:40 1096 2.83 28 18Mar2006 10:16:40 1092 2.83 29 18Mar2006 10:16:40 1088 2.83 30 18Mar2006 10:16:40 1084 2.83 31 18Mar2006 10:16:40 1080 2.83 32 18Mar2006 10:16:40 1072 2.83 33 18Mar2006 10:16:40 1068 2.83 34 18Mar2006 10:16:40 1064 2.83 35 18Mar2006 10:16:40 1060 2.83 36 18Mar2006 10:16:40 1056 2.83 37 18Mar2006 10:16:40 1052 2.83 38 18Mar2006 10:16:40 1048 2.83 39 18Mar2006 10:16:41 1044 2.83 40 18Mar2006 10:16:41 1040 2.83 41 18Mar2006 10:16:41 1036 2.90 42 18Mar2006 10:16:41 1028 2.90 43 18Mar2006 10:16:41 1024 2.90 44 18Mar2006 10:16:41 1020 2.90 45 18Mar2006 10:16:41 1016 2.90 46 18Mar2006 10:16:41 1012 2.90 47 18Mar2006 10:16:41 1007 2.90 48 18Mar2006 10:16:41 1008 2.90 49 18Mar2006 10:16:41 1004 2.90 50 18Mar2006 10:16:41 1000 2.90 51 18Mar2006 10:16:41 996 2.90 52 18Mar2006 10:16:41 992 2.90 53 18Mar2006 10:16:41 988 2.86 54 18Mar2006 10:16:41 984 2.86 55 18Mar2006 10:16:41 980 2.86 56 18Mar2006 10:16:41 976 2.86 57 18Mar2006 10:16:42 972 2.86 58 18Mar2006 10:16:42 968 2.86 59 18Mar2006 10:16:42 964 2.86
-Coomments 03/18/2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 2
New Plot Session2 -Tabular List [New Plot Group] Plot 1 Plot Number:
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 60 18Mar2006 10:16:42 960 2.86 61 18Mar2006 10:16:42 956 2.86 62 18Mar2006 10:16:42 952 2.86 63 18Mar2006 10:16:42 948 2.86 64 18Mar2006 10:16:42 944 2.86 65 18Mar2006 10:16:42 940 2.86 66 18Mar2006 10:16:42 936 2.86 67 18Mar2006 10:16:42 932 2.86 68 18Mar2006 10:16:42 928 2.86 69 18Mar2006 10:16:42 924 2.86 70 18Mar2006 10:16:42 920 2.86 71 18Mar2006 10:16:42 916 2.86 72 18Mar2006 10:16:42 912 2.86 73 18Mar2006 10:16:43 908 3.20 74 18Mar2006 10:16:43 904 3.20 75 18Mar2006 10:16:43 900 3.20 76 18Mar2006 10:16:43 896 3.20 77 18Mar2006 10:16:43 892 3.20 78 18Mar2006 10:16:43 888 3.20 79 18Mar2006 10:16:43 884 3.20 80 18Mar2006 10:16:43 880 3.20 81 18Mar2006 10:16:43 876 3.32 82 18Mar2006 10:16:43 872 3.32 83 18Mar2006 10:16:43 868 3.32 84 18Mar2006 10:16:43 864 3.32 85 18Mar2006 10:16:43 860 3.32 86 18Mar2006 10:16:43 856 3.32 87 18Mar2006 10:16:44 852 3.32 88 18Mar2006 10:16:44 848 3.32 89 18Mar2006 10:16:44 844 3.32 90 18Mar2006 10:16:44 840 3.32 91 18Mar2006 10:16:44 836 3.32 92 18Mar2006 10:16:44 832 3.32 93 18Mar2006 10:16:44 828 3.32
-Comments 03/18/2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 3
New Plot Session2 - Tabular List {New Plot Group] Plot I Plot Number:_
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 94 18Mar2006 10:16:44 824 3.32 95 18Mar2006 10:16:44 820 3.32 96 18Mar2006 10:16:44 816 3.32 97 l8Mar2006 10:16:44 812 3.26 98 18Mar2006 10:16:44 808 3.26 99 18Mar2006 10:16:45 804 3.26 100 18Mar2006 10:16:45 800 3.26 101 18Mar2006 10:16:45 796 3.26 102 18Mar2006 10:16:45 792 3.26 103 18Mar2006 10:16:45 787 3.26 104 18Mar2006 10:16:45 787 3.26 105 18Mar2006 10:16:45 784 3.28 106 18Mar2006 10:16:45 780 3.28 107 l8Mar2006 10:16:45 776 3.28 108 18Mar2006 10:16:45 772 3.28 109 18Mar2006 10:16:45 768 3.28 110 18Mar2006 10:16:46 764 3.28 111 18Mar2006 10:16:46 760 3.28 112 18Mar2006 10:16:46 756 3.28 113 18Mar2006 10:16:46 752 3.28 114 18Mar2006 10:16:46 748 3.28 115 18Mar2006 10:16:46 744 3.28 116 18Mar2006 10:16:46 740 3.28 117 18Mar2006 10:16:46 736 3.70 118 18Mar2006 10:16:46 732 3.70 119 18Mar2006 10:16:47 728 3.70 120 18Mar2006 10:16:47 724 3.70 121 18Mar2006 10:16:47 720 3.70 122 18Mar2006 10:16:47 716 4.65 123 18Mar2006 10:16:47 712 4.65 124 18Mar2006 10:16:47 708 4.65 125 18Mar2006 10:16:47 704 4.65 126 18Mar2006 10:16:47 700 4.65 127 18Mar2006 10:16:48 696 4.65
-Comments 0311U/2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 4
New Plot Session2 - Tabular List [New Plot Group] Plot 1 Plot Number:_
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 128 18Mar2006 10:16:48 692 4.65 129 18Mar2006 10:16:48 688 4.65 130 18Mar2006 10:16:48 684 4.65 131 18Mar2006 10:16:48 680 4.65 132 18Mar2006 10:16:48 676 4.86 133 18Mar2006 10:16:48 672 4.86 134 18Mar2006 10:16:49 668 4.86 135 I8Mar2006 10:16:49 664 4.86 136 18Mar2006 10:16:49 660 4.99 137 18Mar2006 10:16:49 658 4.99 138 18Mar2006 10:16:49 658 4.99 139 18Mar2006 10:16:49 656 4.99 140 18Mar2006 10:16:49 652 4.99 141 18Mar2006 10:16:49 648 4.99 142 18Mar2006 10:16:49 644 4.99 143 18Mar2006 10:16:50 640 4.99 144 18Mar2006 10:16:50 636 4.99 145 18Mar2006 10:16:50 632 5.09 146 18Mar2006 10:16:50 628 5.09 147 18Mar2006 10:16:50 624 5.09 148 18Mar2006 10:16:51 620 5.09 149 18Mar2006 10:16:51 616 5.54 150 18Mar2006 10:16:51 612 5.54 151 18Mar2006 10:16:51 608 5.54 152 18Mar2006 10:16:51 604 5.54 153 18Mar2006 10:16:52 600 5.54 154 18Mar2006 10:16:52 596 5.22 155 18Mar2006 10:16:52 592 5.22 156 18Mar2006 10:16:52 588 5.22 157 18Mar2006 10:16:53 584 5.22 158 18Mar2006 10:16:53 580 5.22 159 18Mar2006 10:16:53 578 5.22 160 18Mar2006 10:16:53 578 5.22 161 18Mar2006 10:16:53 576 5.22 Comments 03/18/2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 5
New Plot Session2 - Tabular List [New Plot Group] Plot I Plot Number:_
Company: None Enterprise: PVIDS1 Job ReFerence:
Sample Date Speed Direct 162 18Mar2006 10:16:53 572 5.22 163 18Mar2006 10:16:54 568 5.22 164 18Mar2006 10:16:54 564 5.22 165 18Mar2006 10:16:54 560 4.83 166 18Mar2006 10:16:54 556 4.83 167 18Mar2006 10:16:54 552 4.83 168 18Mar2006 10:16:55 548 4.94 169 18Mar2006 10:16:55 544 4.94 170 18Mar2006 10:16:55 540 4.94 171 18Mar2006 10:16:55 536 4.94 172 18Mar2006 10:16:55 532 4.94 173 18Mar2006 10:16:56 528 4.94 174 18Mar2006 10:16:56 524 4.46 175 18Mar2006 10:16:56 520 4.46 176 18Mar2006 10:16:56 516 4.46 177 18Mar2006 10:16:56 512 4.83 178 18Mar2006 10:16:57 508 4.83 179 18Mar2006 10:16:57 504 4.83 180 18Mar2006 10:16:57 502 4.83 181 18Mar2006 10:16:57 502 4.83 182 18Mar2006 10:16:57 500 4.83 183 18Mar2006 10:16:57 496 4.83 184 18Mar2006 10:16:57 492 4.83 185 18Mar2006 10:16:58 488 5.32 186 18Mar2006 10:16:58 484 5.32 187 18Mar2006 10:16:58 480 5.32 188 18Mar2006 10:16:58 476 3.80 189 18Mar2006 10:16:58 472 3.80 190 18Mar2006 10:16:59 468 3.80 191 18Mar2006 10:16:59 464 3.80 192 18Mar2006 10:16:59 460 3.80 193 18Mar2006 10:16:59 456 3.80 194 18Mar2006 10:16:59 452 3.67 195 18Mar2006 10:17:00 448 3.67 comments 03/18/2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 6
New Plot Session2 - Tabular List [New Plot Group] Plot 1 Plot Number:
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 196 18Mar2006 10:17:00 444 3.67 197 18Mar2006 10:17:00 440 3.67 198 18Mar2006 10:17:00 436 3.96 199 18Mar2006 10:17:00 432 3.96 200 18Mar2006 10:17:01 428 3.96 201 18Mar2006 10:17:01 424 3.96 202 18Mar2006 10:17:01 420 3.96 203 18Mar2006 10:17:01 416 3.96 204 18Mar2006 10:17:01 416 3.96 205 18Mar2006 10:17:01 412 3.96 206 18Mar2006 10:17:01 408 4.03 207 18Mar2006 10:17:02 404 4.03 208 18Mar2006 10:17:02 400 4.03 209 18Mar2006 10:17:02 396 4.03 210 18Mar2006 10:17:02 392 3.52 211 18Mar2006 10:17:02 388 3.52 212 18Mar2006 10:17:02 384 3.52 213 18Mar2006 10:17:03 380 3.52 214 18Mar2006 10:17:03 376 3.52 215 18Mar2006 10:17:03 372 3.52 216 18Mar2006 10:17:03 368 3.52 217 18Mar2006 10:17:03 364 3.18 218 18Mar2006 10:17:04 360 3.18 219 18Mar2006 10:17:04 356 3.18 220 18Mar2006 10:17:04 352 3.25 221 18Mar2006 10:17:04 348 3.25 222 18Mar2006 10:17:04 344 3.25 223 18Mar2006 10:17:04 340 3.25 224 18Mar2006 10:17:05 336 3.25 225 18Mar2006 10:17:05 332 3.25 226 18Mar2006 10:17:05 331 3.25 227 18Mar2006 10:17:05 331 3.25 228 18Mar2006 10:17:05 328 3.25 229 18Mar2006 10:17:05 324 2.96 F-
%,QfmfenE5 0311812006 RCP2A SHUT DOWN CHUCK HAWKINS Page 7
New Plot Session2 - Tabular List [New Plot Group] Plot I Plot Number:_
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 230 18Mar2006 10:17:05 320 2.96 231 18Mar2006 10:17:06 316 2.96 232 18Mar2006.10:17:06 312 2.84 233 18Mar2006 10:17:06 308 2.84 234 18Mar2006 10:17:06 304 2.84 235 18Mar2006 10:17:06 300 2.84 236 18Mar2006 10:17:07 296 2.84 237 18Mar2006 10:17:07 292 2.84 238 18Mar2006 10:17:07 288 3.54 239 18Mar2006 10:17:07 284 3.54 240 18Mar2006 10:17:07 280 3.54 241 18Mar2006 10:17:08 272 3.43 242 18Mar2006 10:17:08 268 3.43 243 18Mar2006 10:17:08 264 3.43 244 18Mar2006 10:17:08 260 3.43 245 18Mar2006 10:17:09 252 3.43 246 18Mar2006 10:17:09 248 3.43 247 18Mar2006 10:17:09 246 3.09 248 18Mar2006 10:17:09 246 3.09 249 18Mar2006 10:17:09 244 3.09 250 18Mar2006 10:17:09 236 3.09 251 18Mar2006 10:17:10 232 3.09 252 18Mar2006 10:17:10 224 3.09 253 18Mar2006 10:17:10 220 2.99 254 18Mar2006 10:17:10 212 2.99 255 18Mar2006 10:17:11 208 2.99 256 18Mar2006 10:17:11 200 3.22 257 18Mar2006 10:17:11 192 3.22 258 18Mar2006 10:17:12 184 3.22 259 18Mar2006 10:17:12 176 3.22 260 18Mar2006 10:17:12 168 4.24 261 18Mar2006 10:17:13 160 3.42 262 18Mar2006 10:17:13 160 3.42 263 18Mar2006 10:17:13 160 3.42
-Comments 03/1812006 RCP2A SHUT DOWN CHUCK HAWKINS Page 8
New Plot Session2 - Tabular List [New Plot Group] Plot 1 Company: None Job
Reference:
Sample Date Speed Direct Plot Number:_
Enterprise: PVIDS1 264 265 266 267 3
268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 18Mar2006 10:17:13 18Mar2006 10:17:14 18Mar2006 10:17:14 18Mar2006 10:17:14 18Mar2006 10:17:15 18Mar2006 10:17:17 18Mar2006 10:17:17 18Mar2006 10:17:21 18Mar2006 10:17:21 18Mar2006 10:17:25 18Mar2006 10:17:25 18Mar2006 10:17:29 18Mar2006 10:17:29 18Mar2006 10:17:33 18Mar2006 10:17:33 18Mar2006 10:17:37 18Mar2006 10:17:37 18Mar2006 10:17:41 18Mar2006 10:17:41 18Mar2006 10:17:45 18Mar2006 10:17:45 18Mar2006 10:17:49 18Mar2006 10:17:49 18Mar2006 10:17:53 18Mar2006 10:17:53 18Mar2006 10:17:57 18Mar2006 10:17:57 18Mar2006 10:18:01 18Mar2006 10:18:01 18Mar2006 10:18:05 18Mar2006 10:18:05 18Mar2006 10:18:09 18Mar2006 10:18:09 18Mar2006 10:18:13 152 144 132 120 108 N/A N/A N/A N/A NIA N/A N/A N/A N/A N/A NIA NIA NIA NIA NIA N/A N/A N/A NIA N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 3.42 3.42 3.31 3.31 4.04 2.91 2.91 1.53 1.53 1.25 1.25 1.12 1.12 1.15 1.15
.99
.99 1.13 1.13 1.14 1.14 1.18 1.18
.98
.98 1.19 1.19 1.20 1.20 1.31 1.31 1.11 1.11 2.10
-2.s 4AL14-'
/L/O nommeruts 03/18/2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 9
New Plot Session2 - Tabular List [New Plot Group] Plot 1 Company: None Job
Reference:
Sample Date Speed Direct Plot Number:
Enterprise: PVIDS1 298 299
- 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 18Mar2006 10:18:13 18Mar2006 10:18:15 18Mar2006 10:18:15 18Mar2006 10:18:15 18Mar2006 10:18:15 18Mar2006 10:18:15 18Mar2006 10:18:15 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:16 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:17 18Mar2006 10:18:18 18Mar2006 10:18:18 18Mar2006 10:18:18 18Mar2006 10:18:18 18Mar2006 10:18:18 18Mar2006 10:18:18 18Mar2006 10:18:18 N/A N/A 348 368 384 400 416 428 444 460 472 484 496 512 524 536 548 560 572 584 585 596 608 616 628 640 652 660 672 684 692 704 712 724 2.10 3.10 3.10 3.10 3.10 3.10 2.89 2.89 2.89 2.89 2.89 3.18 3.18 3.18 3.18 3.18 3.18 3.18 3.18 3.18 3.18 3.18 3.18 3.18 4.43 4.43 4.43 4.43 4.43 4.43 4.43 4.43 4.43 4.43 Y&
Cf ladII0,-
Y-Comments 03/18f2006 RCP2A SHUT DOWN CHUCK HAWKINS Page 10
New PlDt Session2 - Tabular List [New Plot Group] Plot 1 Plot Number:_
Company: None Enterprise: PVIDS1 Job
Reference:
Sample Date Speed Direct 332 18Mar2006 10:18:18 732 4.43 333 18Mar2006 10:18:18 744 4.43 334 18Mar2006 10:18:18 752 4.43 335 18Mar2006 10:18:18 760 4.43 336 18Mar2006 10:18:18 772 5.44 337 18Mar2006 10:18:19 780 5.44 338 18Mar2006 10:18:19 792 5.44 339 18Mar2006 10:18:19 800 5.44 340 18Mar2006 10:18:19 808 5.44 341 18Mar2006 10:18:19 816 5.44 342 18Mar2006 10:18:19 828 5.44 343 18Mar2006 10:18:19 836 5.44 344 18Mar2006 10:18:19 844 5.44 345 18Mar2006 10:18:19 852 5.44 346 18Mar2006 10:18:19 860 5.44 347 18Mar2006 10:18:19 868 5.44 348 18Mar2006 10:18:19 880 5.44 349 18Mar2006 10:18:20 888 5.44 350 18Mar2006 10:18:20 920 5.44 351 18Mar2006 10:18:20 928 5.94 352 18Mar2006 10:18:20 944 5.94 353 18Mar2006 10:18:20 964 5.94 354 18Mar2006 10:18:20 972 5.94 355 18Mar2006 10:18:20 980 5.94 356 18Mar2006 10:18:20 988 5.94 357 18Mar2006 10:18:20 996 5.94 358 18Mar2006 10:18:20 1004 5.94 359 18Mar2006 10:18:20 1016 6.42 360 18Mar2006 10:18:20 1024 6.42 361 18Mar2006 10:18:21 1032 6.42 362 18Mar2006 10:18:21 1048 6.42 363 18Mar2006 10:18:21 1068 6.42 364 18Mar2006 10:18:21 1133 6.42 365 18Mar2006 10:18:21 1100 6.42 Comments 0311812006 RCP2A SHUT DOWN CHUCK HAWKINS Page 11
New Plot Session2 - Tabular List [New Plot Group] Plot 1 Company: None Job
Reference:
S..m...
D
.Spee
.Di Sample Date Speed Direct Plot Number:_
Enterprise: PVIDS1 366 367 368 369 370 371 372 373 l8Mar2006 10:18:21 18Mar2006 10:18:21 18Mar2006 10:18:21 18Mar2006 10:18:21 18Mar2006 10:18:21 18Mar2006 10:18:21 18Mar2006 10:18:25 18Mar2006 10:18:25 1132 1140 1152 1160 1184 1188 1190 1190 6.42 6.42 6.42 6.42 6.42 6.42 3.74 FL* l 3.74 SUEZf- )go
-4iorments 0311812006 RCP2A SHUT DOWN CHUCK HAWKINS Page 12
Appendix F - Section 3 SDC Piping Vibration Limits for Unit 1:
Methodology:
The calculated values presented here are based on the details documented in Calculation 01-MC-SI-0509 Volume 3 sheets V3-46 through V3-50.
The calculated stresses for a given acceleration at frequency experienced by the valve are applied at V1 H location. The most limiting stress location for each pipe size was reviewed. This stress was compared against the endurance limit for the most limiting components. The acceleration levels corresponding to endurance limit stress was linearly extrapolated. The value of sweep velocity was calculated for this allowable acceleration level at the valve vibration frequency of 24 Hz.
As stated on sheet no. V3-50 the most limiting component was node point 32 at the valve end that would correspond to a sweep velocity of 3.005 inches at the V1H location.
The sweep velocity was converted into an acceleration value at 24 Hz and the projected stress at this acceleration was linearly extrapolated from the results of ME.-
101 Analysis (SNUM AJ5503 dated 11/10/02) at node point 32. For this calculated stress the allowable number of cycles were read from the ASME Section 3 Fatigue!
curve. The allowable cycles were then conservatively divided by 25x60 to get the number of allowable minutes.
Results:
IPS Freq.
G's Stress
- of Cycles Minutes 3.005 24 1.173 16497 Infinite Infinite 3.7 24 1.445 20312 1000000 666.7 3.9 24 1.523 21410 400000 266.7 4
24 1.562 21959 130000 86.7 4.2 24 1.640 23057 90000 60.0 4.4 24 1.718 24155 83000 55.3 4.6 24 1.796 25253 75000 50.0 4.8 24 1.874 26351 65000 43.3 5
24 1.952 27449 47000 31.3 5.2 24 2.030 28547 40000 26.7 5.4 24 2.108 29645 35000 23.3 5.6 24 2.186 30743 30000 20.0 5.8 24 2.264 31841 25000 16.7 6
24 2.343 32939 18000 12.0
At 6.0 ips:
Acceleration at 24Hz = 6*2*(PI)*24/386.4 = 2.343 g's Stress corresponding to this acceleration at node point 32 = 2.343*5484/0.39 -
32,939 psi Allowable cycles for Salt of 32,939 psi = 18,000 cycles.
Allowable time at this level of vibration to maintain operability =
18000/(25*60) = 12 minutes.