ML042390215
| ML042390215 | |
| Person / Time | |
|---|---|
| Site: | Robinson  |
| Issue date: | 08/13/2002 |
| From: | Hunter R, Mcdlin F, Will Smith Progress Energy Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| RNP-I/INST-1043, Rev 5 | |
| Download: ML042390215 (58) | |
Text
SYSTEM FILE NO. 3020 CALC. TYPE ID IE PRIORITY 0 CAROLINA POWER & LIGHT COMPANY RNP-IIINST-1043 FOR MAIN STEAM PRESSURE UNCERTAINTY AND SCALING CALCULATION FOR H. B. ROBINSON UNIT 2 YES NO SAFETY RELATED : El AUGMENTED QUALITY: ED NON SAFETY: n 0 APPROVAL
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Main Steam Pressure Uncertainty and Scaling Calculation Tsnbl of Cnntpnts SE DESCRUrFrQN PAGEF REVISION HISTORY ............................................. 2 1.0 OBJECTIVE ............................................. 3 2.0 FUNCTIONAL DESCRIPTION ............................................. 3 3.0 LOOP DIAGRAM ............................................. 5
4.0 REFERENCES
............................................. 7 5.0 INPUTS AND ASSUMPTIONS ............................................. 9 6.0 CALCULATION OF UNCERTAINTY CONTRIBUTORS ............................................ 10 7.0 TOTAL LOOP UNCERTAINTY (FLU) .............................. : 26 8.0 DISCUSSION OF RESULTS ............................. 33 9.0 SCALING CALCULATIONS ............................. 40 tMXT OF ATTrACIMFNTS PAGF.E A. Calculation Matrix Reference Table I B. 00813-01004808, Rosemount Model 3051NG Smart Pressure Transmitter for Nuclear 1-3 Servicc. Rev. DA, Dated August, 2001 C. Deleted D. NUS Instruments Long Term Drift Test for NUS Modules - Final Report, Executive 1, 2 Summary, dated October 26, 2001 E. Email from NUS Confirming Similarity of NUS Isolator Modules, dated 01/15/02 1,2 F. ComparatorHistorical Drift Study I G. Indicator Specifications I
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Main Steam Pressure Uncertainty and Scaling Calculation RFVISTON HISTORY HUFJ&ION FWCRTPTQION Q CHANG.P.
0 Initial issue of calculation.
I Correct As Left Tolerances and Hagan Room Temperature.
2 Add seismic effect uncertainty values to the transmitter Total Device Uncertainty (TDU) and revise impacted sections.
3 To correct errors, to include NUS module data, and place in standard format.
4 Revised to reflect transmitter replacement with more accurate model. Also removed conservatism in isolator uncertainty to support Power Uprate accuracy requirements.
5 Revised to correct typographical errors and to include the new values from the steam header calculation.
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Main Steam Pressure Uncertainty and Scaling Calculation I 1.0 ORlECTIN'U This calculation computes the loop uncertainties associated with the indication, alarm, and safeguards actuation setpoints provided by the Main Steam Line Pressure instrumentation loops.
The instrumentation also provides an input into the Emergency Response Facility Information System (ERFIS). The uncertainties at the input to ERFIS are calculated. The uncertainty associated with the pressure input signal for safeguards actuation signal as a result of High Steam Flow coincident with Low Main Steam Line Pressure is determined. The uncertainty associated with High Steam Line Differential Pressure is determined. This is used as an input to safeguards actuation. The Reactor Turbine Generator Control Board (RTGB) indication uncertainty is determined. This calculation also determines the Allowable Value (AV) for the safeguards initiation setpoint.
Uncertainties associated with the control functions provided by Main Steam Line Pressure arc not calculated.
The instrument loops contain the components in Section 3.0 and are addressed in this calculation.
2.0 FTTNC(TONAT. DESCRIP1TON The Main Steam Line Pressure channels are used to provide indication of Main Steam Line Pressure on the RTGB during normal and accident conditions, an input for Safeguards actuation, and Main Steam Flow density compensation.
The instrument loops that are the subject of this calculation provide the following functions:
- Safeguards actuation signal on High Steam Flow coincident with Low Main Steam Line Pressure.
- Safeguards actuation signal on High Steam Line Differential Pressure.
- Steam Flow density compensation.
2.1 NORMAL FINMON Indication is displayed on PI-474, 475, 476, 484, 485, 486, 494, 495, and 496. An output of this instrument loop is used to compensate Main Steam Flow for density. These loops also provide input to ERFIS.
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Main Steam Pressure Uncertainty and Scaling Calculation 2.2 A CC-IDENT MITIGATIN( TF1 NMTON Per Reference 4.7.7, the instrument loops addressed in this calculation produce an input to the safeguards actuation system on steam flow mismatch and high steam flow coincident with low steam pressure or low Tqvg.
2 1i A._ PICT l-AC(ClI.NJT MAN11Tf)RIN)W. VINtCTInN Per Reference 4.6.2 the transmitters and indication provide indication post accident. Per Reference 4.6.2 the pressure transmitters are Reg. Guide 1.97 Al, B1, Cl, and D2 variables, therefore, the instrument loops addressed in this calculation remain operable prior to and following a Design Basis Accident.
2.4 POST SEIRMIC Per Reference 4.7.7 the transmitters and indication provide indication post seismic.
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Main Steam Pressure Uncertainty and Scaling Calculation 3.0 lO(P UIAG.RAM To Steam Flow ISee Reference 4.2.6) and High Steam Line Differential Pressure Safeguards Actuation From Steam Header Pressure ISee Reference 4.2.1)
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Main Steam Pressure Uncertainty and Scaling Calculation Tag number Function Make and Model Location Reference PIT-474, 475,476, Transmitter 305ING Turbine Building 4.7.4,4.7.6 484,485,486,494, 495,496 PQ474. 475, 476, Power Supply NUS SPS801 or Hagan Rack 4.1.1-5; 4.7.4 484, 485,486, 494, Westinghouse 495.496 4111085-001 PM474AIR, 475A/R I/V Westinghouse Hagan Rack 4.1.1-5; 4.7.4 PM-476A/R, 485A/R 3110554-000 PM-486A/R, 494AIR PM-495A/R, 496A/R P-474, 475,476,484, Computer Westinghouse Hagan Rack 4.1.1-5; 4.7.4 485,486,494,495, Signal 3110552-000 496 Conditioner PM-474D, 475C, Signal Isolator NUS EIP- Hagan Rack 4.1.1-5; 4.7.4 476B, 484B, 485B, E013DD-1 486B, 494D, 495C, 496B PM474A, 475A, Signal Isolator NUS OCA-800- Hagan Rack 4.1.1-5,4.7.4 476A, 484A, 485A, 05-07-08 486A, 494A, 495A, 496A ___
PC-474A1R, 474B/R, IIV module Westinghouse Hagan Rack 4.1.1-5,4.7.4 475/R, 476JR, 4841R, 3110554-000 485A/R, 485BIR, 486/R, 494/R, 495/R, 496A/R, 496B/R PC474A, 474B, Comparator Westinghouse Hagan Rack 4.1.1-5; 4.7.4 475,476,484, 485A, 4111082-001 or 485B, 486,494,495, NUS SAM 800 496A, 496B or DAM 800 PI-474,475,476, Indicator International Control Room 4.1.1-5; 4.7.4 484,485,486,494, Instruments 495,496 2520VB_
Instrument identification
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Main Steam Pressure Uncertainty and Scaling Calculation 4.0 EEEREiNCFS 4.1 DRAWYINGS 4.1.1 5379-03488, Hagan Wiring Diagram, Revision 15 4.1.2 5379-03489, Hagan Wiring Diagram, Revision 16 4.1.3 5379-03490, Hagan Wiring Diagram, Revision 16 4.1.4 5379-03491, Hagan Wiring Diagram, Revision 19 4.1.5 5379-03492, Hagan Wiring Diagram, Revision 13 4.1.6 G-190184, General Arrangement Turbine Building Sections A-A and B-B, Revision 10 4.1.7 G-190292, Turbine Building Mezzanine Floor Plan Instrumentation Arrg't, Revision 8 4.1.8 HBR2-10618, Inservice Inspection Drawing Loop 1 - 26" Main Steam Line No.
26"-MS-1 CPL212, Revision 3 4.1.9 HBR2-11135 sheet 2, RTGB Panel C - Annunciator Section, Revision 1 4.2 CA l .CT L,ATIONS 4.2.1 RNP-IIINST-1050, Steam Header Pressure Uncertainty and Scaling Calculation, Revision 3 4.2.2 RNP-E-1.005, 120 VAC Instrument Bus Voltage, Revision 2 4.2.3 RNP-M/MECH-1651, Containment Analysis Inputs, Revision 10 4.2.4 RNP-B/MECH-1388, Revision 0, Attachment C 4.2.5 RNP-M/MECH-1741, 32-5015594-00, Appendix K Power Upratc Operating Conditions, Revision 0 4.2.6 RNP-IIINST-1040, Steam Flow Uncertainty Scaling Calculation, Revision 3 4.3 REGY 11 ATORY )ClITMENVT 4.3.1 None 4.4 TECHNTCAL. MANI TAT S 4.4.1 728-589-13, VendorManual Hagan,Revision 22 4.4.2 728-399-88, Auxiliary Indicating Meters Bulletin Model 2500 2520, Revision 2
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Main Steam Pressure Uncertainty and Scaling Calculation 4.5 CAT.TRRATION nnd MAINTF.NAN(F. PROCl;rl)I1RRF1 4.5.1 LP-901, Steam Generator Pressure Channel 474 Loop #1 Channel #2, Revision 6 4.5.2 LP-902, Steam Generator Pressure Channel 475 Loop #1 Channel #3, Revision 5 4.5.3 LP-903, Steam Generator Pressure Channel 476 Loop #1 Channel #4, Revision 5 4.5.4 LP-904, Steam Generator Pressure Channel 484 Loop #2 Channel #2, Revision 4 4.5.5 LP-905, Steam Generator Pressure Channel 485 Loop #2 Channel # 3, Revision 5 4.5.6 LP-906, Steam Generator Pressure Channel 486 Loop #2 Channel # 4, Revision 5 4.5.7 LP-907, Steam Generator Pressure Channel 494 Loop #3 Channel # 2, Revision 5 4.5.8 LP-908, Steam Generator Pressure Channel 495 Loop #3 Channel # 3, Revision 5 4.5.9 LP-909, Steam Generator Pressure Channel 496 Loop #3 Channel # 4, Revision 5 4.5.10 PIC-845, Rosemount Smart Transmitters, Revision 0 4.5.11 MMM-006, Appendix B-3, Calibration Data Sheets, Revision 0 4.5.12 MMM-006, Calibration Program, Revision 22 4.6 PROCF.ITHRF'S 4.6.1 EGR-NGGC-0153, Engineering Instrument Setpoints, Revision 9 4.6.2 TMM-026, List of Regulatory Guide 1.97 Instruments, Revision 18 4.7 OThER RFIEPFNCM 4.7.1 UpdatedFinal Safety Analysis Report 4.7.2 Technical Specifications 4.7.3 RNP-F/NFSA-0045, RNP Cycle 21 Reload Plant Parameters Document, Revision 2 4.7.4 Equipment Data Base (EDB)
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Main Steam Pressure Uncertainty and Scaling Calculation 4.7.5 R82-226/01, DBD for Control Room Habitability Modifications 993 & 994 Revision 6 4.7.6 EC 47152 R0 4.7.7 DBD/R87038/SD06, DBD for the Reactor and Safeguards Protection System, Revision 5 4.7.8 ASME Steam Tables, 6 h Edition 5.0 INPIITS AND ASSI1M"TIONS 5.1 The accuracy of a typical test resistor is on the order of +/- 0.01%. Therefore, the test resistors used during calibration are assumed to have a negligible impact on the overall uncertainty calculation.
5.2 Per Reference 4.7.5, the ambient temperature in the Control Room varies from 70cF to 77V during operation. The calibration temperature for the indicator is assumed to be 600 F. Therefore, a change in temperature of 170F (9.4"C) is used to compute the indicator temperature effect.
5.3 Per Reference 4.7.4, the pressure transmitters are located in the Turbine Building. The Turbine Building is an open structure. Because the transmitters are located in thermostatically controlled enclosures, the minimum temperature used to compute the transmitter temperature effect is assumed to be 33 TF. The maximum temperature is 107'F. (Reference 4.7.1 provides the information and references the U.S. Department of Commerce, Environmental Data Service, "Climatic Atlas of the United States" June 1968 as a source).
5.4 Per Reference 4.6.1, reference accuracy typically includes the effects of linearity, hysteresis, and repeatability. The indicator reference accuracy is given in Reference 4.4.2 is assumed to include the effects of linearity, hysteresis, and repeatability.
5.5 Per Reference 4.7.5, the maximum temperature of the Hagan Room is 82 0 F. Per Reference 4.6.1, the racks may experience an additional 100F heat rise during operation.
The ambient temperature at the time of calibration is assumed to be 50 0F. Therefore, a change in temperature of 420 F is used to compute the temperature effect associated with the rack components.
(820F+100F)-50OF = 420F
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Main Steam Pressure Uncertainty and Scaling Calculation 5.6 The Westinghouse 3110552-000 Computer Signal Conditioner is a high precision resistor. Based on the high accuracy of the resistor, the resistor has a negligible impact on the overall loop uncertainty computation.
5.7 Per References 4.5.1 through 4.5.9, the IN module is calibrated as part of a string. Per Reference 4.4.1, the IN module is a resistor. Resistors typically experience negligible drift. Therefore, any resistor drift throughout the fuel cycle is negligible and is accounted for during the string calibration.
5.8 The transmitters are seismically qualified by Rosemount. Per Attachment B, the post seismic effect of the transmitter is +/- 0.25% of Span.
5.9 As noted on the Instrument Identification Table in Section 3.0, there are two types of NUS isolators used in the instrument loops addressed by this calculation. The performance specifications of these similar devices are almost identical, but they contain minor differences. To facilitate this calculation, the isolators are considered to be the same and, in every case, the more conservative of specific device uncertainty terms is used to determine overall device uncertainty for the isolators.
5.lOThe temperature of the pure water used to calibrate the transmitters is assumed to be 900F.
5.11 The process pressure at 6% Steam Generator Tube Plugging is used. This value is obtained from Reference 4.2.5.
6.0 CAMI,T .ATION OF ITNrFRTA NT-Y CONTRIRI STOR 6.1 ACCI)FNT EFFECTS (A En Per References 4.6.2 and 4.7.7, the indication functions provided by each loop are required to function post accident.
6.1.1 Acnident Ti-niprethire Effrct (ATE)
The pressure transmitters are located in the Turbine Building. They are not subject to an adverse or temperature higher than normal ambient by any accident. Therefore, the Accident Temperature Effect (ATE) is not included.
ATE = 0.0% Span
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Main Steam Pressure Uncertainty and Scaling Calculation 6.1.2 Accidrent Er"' sure EfMect (APFR The pressure transmitters are not exposed to a pressure above normal atmospheric during any accident analyzed in Reference 4.7.1. Therefore, APE = 0.0% Span 6.1.3 Acridlent R-ndfition Effect (ARF')
The pressure transmitters are located in the Turbine Building and are not subject to areas of high or abnormal radiation levels. Therefore, ARE = 0.0% Span Accident Effect is calculated using the following equation:
AE = APE+ JATE2 + ARE' AE = 0.0% Span 6.2 SEISMIC EFFECT (.9F)
Per Reference 4.7.7, the instrumentation must function prior to and following a seismic event.
The impact of a seismic event is a random variable and will be considered in determining the Total Loop Uncertainty (TLU) associated with the instruments.
6.3 INSIIU.ATION RF..STANC-rF ERROR (TR)
The instrument loops addressed in this calculation are not required to mitigate any event that results in degraded signal cabling. Therefore, Insulation Resistance (IR) effects are not applicable.
i
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Main Steam Pressure Uncertainty and Scaling Calculation 6A PROCESS MEASNTREFNT ERROR (PMF)
.3encing Tine Density Efferts Per Section 9.1 of this calculation, the transmitter is located 20.03 fcct below the condensate pot. A sensing line fill fluid of pure water at 90 0 F per Section 5.10 and a process pressure of 800.5 psia per Reference 4.2.5 is used to calculate the hydrostatic head on the transmitter. Per Input and Assumption 5.3 the maximum ambient temperature is 1070 F. The sensing lines are insulated against freezing and the transmitters are enclosed in a temperature controlled housing. Therefore the minimum temperature is 33 0F. The process measurement effect due to changes in sensing line fill fluid density (PME) is a one directional bias calculated with the following equation:
(h(PN-pc)Y 100%Span norPME = I I 144 1400 )
where, h = height of sensing line
= 20.03 feet pN@107 = sensing line fill fluid density during normal operation
= 62.05338 Ibm/ft 3 @ 107 0F, 800.5 psia PN@33 =sensing line fill fluid density during normal operation
= 62.58826 Ibm/ft 3 @ 330 F, 800.5 psia pc@vo = sensing line fill fluid density used for scaling
= 62.26799 Ibm/ft3 @ 90F, 800.5 psia NOTE: The factor 144 is used to convert from lbf/ft' to lbf/in'. At standard gravity, Ibm may be replaced with Wbf.
Using the equation stated above for PME yields the following events:
norPME = +0.0032/-0.0021 % Span Per Reference 4.6.1, uncertainty terms with a magnitude of 5 0.05% Span will have a negligible effect the calculation, and may be omitted. Therefore, norPME = 0.0% Span
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Main Steam Pressure Uncertainty and Scaling Calculation 6.5 PRIMARY ElEMENT ERROR (PFE There is not an element associated with the measurement of Main Steam Line Pressure.
Therefore, PE = 0.0% Span 6.6 TRANSMITTER 6.6.1 Trlngmittjrf s I fnivrifiedu Atfrihuide of Reference Acevirncy (RAx,#
Per Attachment B, the Reference Accuracy for transmitters with a Range Down Factor of 1:1 to 10:1 (RDF = URL / Calibrated Span) is +/- 0.075% Span, and includes the effects of linearity, hysteresis, and repeatability. The maximum span is 2000 psig and the calibrated span is 1400 psig, so the RDF for this application is 1.43. Per Reference 4.7.6, the transmitter is calibrated to + 0.20% Span. Per Reference 4.7.6, the transmitters are calibrated at 9 cardinal points (5 up and 4 down). Therefore, the calibration procedure verifies the attributes of linearity and hysteresis but not repeatability. Per Reference 4.6.1, the following equation is utilized to compute the repeatability portion of the transmitter reference accuracy.
Repeatability RAN i 0-075%Span - + 0.04%Span Therefore, RAxm,, = +/- 0.04% Span Per Reference 4.6.1, uncertainty terms with a magnitude of
- 0.05% Span will have a negligible effect on calculation results, and may be omitted. Therefore, RA,,t, = 0% Span 6.6.2 Trnnsrnittpr Cstlihrnti Tnlernnrp (CAI-mkt)
Per Reference 4.5.11, the transmitter is calibrated to +/- 0.20% Span. Therefore, CALmtr = +/- 0.20% Span
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Main Steam Pressure Uncertainty and Scaling Calculation 6.6.3 3Trnrismitter Drift (D ,.. I Per Attachment B, the transmitter drift is given as + 0.20% Upper Range Limit (URL) over a time period of 30 months. The URL for this transmitter is 2000 psig. Per Section 9.1, the calibrated span of the transmitter is 1400 psig. Per Reference 4.6.1, the following equation is used to calculate the transmitter drift:
DRxmtr +/-Drifti URL i+/-0.2 ( 00)= +/-0.29%Span (SPAN)--. 1400) 6.6.4 Trnrimitter M&TF F1ffiet (MTEgr'r)
Per Reference 4.5.10, the transmitter is calibrated using a Digital Multimeter (DMM),
which reads a 1-5 Vdc (4-20 mAdc signal across a precision 250 Q resistor) and a Pressure Standard (PS). The transmitter MTE uncertainty is the combined uncertainty of these two devices. Device uncertainties must be converted to common units (% Span) before they can be combined.
The accuracy of the specified DMM is +/- 0.034% of reading plus 2 digits. This is converted to % Span as follows:
(5 Vdc
- 0.034%) + 0.0002 - + 0.043% Span DMM Uncertainty = +/-
4 Vdc The Pressure Standard (PS) has an accuracy of +/- 0.1% Span (0-2000 psig). The transmitter is calibrated 0-1400 psig span. Therefore:
PS Uncertainty = 0.1%*2000 =+/-0.14%Span 1400 The total MTE effect is given by the following:
MTExmtr = +/-IDM2 + PS2 MTExmtr = +/- -10.043 + 0.142 MTExmtr = +/- 0.15% Span
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Main Steam Pressure Uncertainty and Scaling Calculation 6.6.5 Trinnmitter Temperatire Effect (TF=,,,
Per Attachment B, the ambient temperature effect is +/- 0.0125% URL + 0.0625% span per 50 'F for transmitters with a Range Down Factor of 1: I to 5:1 (RDF = URL / Calibrated Span). The maximum span is 2000 psig and the calibrated span is 1400 psig, so the RDF for this application is 1.43. Per Input and Assumption 5.3, the minimum temperature is 330 F and the maximum temperature is 107 'F. For conservatism, a maximum change in temperature of 74 'F is used to calculate the transmitter temperature effect. The total temperature error effect is computed as follows:
TExmtr = +/- (0.0125
- URL + 0.0625% Span) 74OF)
TExmtr= (OoI25* +0.0625%Span F 1400 )t.500F)
TEamtr = + 0.12% Span 6.6.6 Trtinsmitter Stntie Presqure (,;PF,,irl Per Reference 4.7.4, each transmitter is a gauge pressure transmitter. Therefore, static pressure effects are not applicable.
6.6.7 Transmitter Power Supply Effgct (PSF..
Per Attachment B. the power supply effect associated with the transmitters is given as less than +/-0.005% Span per volt variation in power supplied to the transmitter. Per References 4.1.1-4.1.5 and 4.7.4, each instrument loop is powered by either a NUS SP801 or Westinghouse 4111085-0001 power supply. The power supply is powered from regulated instrument buses. Per Reference 4.2.2 the voltage variation on the instrument buses is 7.8 volts. The power supply effect is given by:
PSEzmtr = (+/- 0.005% Span/Volt)(7.8 Volts)
PSExmtr = +/- 0.04% Span Per Reference 4.6.1 values less than 0.05% Span are negligible and may be omitted.
Therefore, PSExmnr = N/A
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Main Steam Pressure Uncertainty and Scaling Calculation 6.6.8 Transmitter Spigmic Error (.ry)
From, Section 5.8, the post seismic effect is as follows:
SExmtr = +/- 0.25% Span 6.6.9 Normnl Trangmitter Totni ]Dviep I Incertninty (TlltY, Total Device Uncertainty is computed using the following equation:
2 TDUxmtr= +/- (CALin+MTExnt+RA2+DRmt 2 +TE TDUmtr = +/- V(0.20 + 0.15)2 + 0.002 + 0.292+0.122 TDUxmtr =:+/- 0.47% Span 6.6.10 Transmittpr As Fonnd Tolpranie (AFTmt,'
Per Reference 4.6.1, the As Found Tolerance (AFT) is computed using the following equation:
AFTxmtr = +/- CALr2+DR 2 +MTE Kr AF~xmtr = J0.22 + 0.292 + 0.1 52 AFTxmtr = +/- 0.38% Span 6.6.11 Transmitter As Ieft Tnlerance (AI j tr ALTxmtr = CALxmtr ALTxmtr = +/- 0.20% Span
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Main Steam Pressure Uncertainty and Scaling Calculation Error Contributor Value TVpe Section RA + 0.00% Span Random 6.6.1 CAL + 0.20% Span Random 6.6.2 DR + 0.29% Span Random 6.6.3 MTE + 0.15% Span Random 6.6.4 TE_ +0.12% Span Random 6.6.5 SE + 0.25% Span Random 6.6.8 As Left Tolerance (ALT) + 0.20% Span Random 6.6.11 As Found Tolerance (AM I+0.38% Span Random 6.6.10 Total Device Uncertainty + 0.47% Span Random 6.6.9 Transmitter Uncertainty Summary 6.7 COMPARATOR MODUl 11 F.
6.7.1 Cnmpnrntnrllnverifitd Attrihilteg nf ieference Aeeirney(RA =nmp Per Reference 4.4.1, the comparator reference accuracy is +/- 0.50% Span. Per Reference 4.5.11, the comparator is calibrated to + 0.50% Span, and the calibration procedure verifies the attributes of linearity and hysteresis but not repeatability. Per Reference 4.6.1, the following equation is utilized to compute the repeatability portion of the comparator reference accuracy:
RA COlp 0.50% Span Repeatability = RA m = i 0 San i 0.29% Span Therefore, RAcomp = + 0.29% Span 6.7.2 Ccimparatnr C'slihrztinn Tnlerance ((AlV.nm Per Reference 4.5.1 1, the comparator is calibrated to +/- 0.50% Span. Therefore, CAIomp = +/- 0.50% Span
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Main Steam Pressure Uncertainty and Scaling Calculation 6.7.3 Comparator Drift (fR,=mr Per Reference 4.4.1, no drift is specified for the Hagan or NUS comparator. Per Reference 4.6.1, if no drift is specified for a device, a default value of +/- 1.00% Span may be used.
Based on historical data, Hagan comparator drift is +/- 0.25% Span (Attachment F). If the default value bounds the value obtained through a review of the historical data, the default value of + 1.00% Span may be used for comparator drift (Reference 4.6.1). Therefore, the default value of + 1.00% Span is used for comparator drift for the NUS and Hagan comparators.
DRcomp = +/- 1.00% Span 6.7.4 CnmpnrntnrM&TE Effect (MTFam*
Per References 4.5.1-9, one DMM with an accuracy of +/- 0.25% Reading is used to calibrate the comparator. For conservatism, a maximum reading of 5 Vdc is used to compute the accuracy of the DMM as follows:
MTEcomp = (0.25% Reading 4Vdc )= +/-0.31% Span 6.7.5 Compnrsitnr Temperature Fffeet (TFmw Per Reference 4.4.1, the NUS comparator temperature effect is given as +/-0.04% Span per IOC change in temperature from the temperature at the time of calibration, and no temperature effect is specified for the Hagan comparator. Per Reference 4.6.1, if no temperature effect is specified for a device, a default value of +/-0.50% Span may be used for the temperature effect. Per Design Input 5.5, a change in temperature of 420 F (23.330 C) is used to compute the comparator temperature effect. Therefore, TEcomp = +/- 0.04% Span (2.°C J TEcomp = +/- 0.93% Span Since either Westinghouse Hagan or NUS comparator may be used, the most restrictive temperature effect (NUS comparator) is used in this calculation.
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Title:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation 6.7.6 Caomprrstnr Powtpr Siipply Effiet (PMF, Y Per Reference 4.4.1, no uncertainty for the comparator power supply effect is specified.
Since the comparators are powered by regulated instrument buses, the comparator power supply effect is considered to be negligible. Therefore, PSEcomp = N/A 6.7.7 Compnrntnr Totnl lDevice I Tncertninty (TIM I...p)
Total Device Uncertainty is computed using the following equation:
TDUcomp = (CALco + MTTEcc,p) + RA 2 +D 2 + TEcon 2 TDuV,=
D(0.50 + 0.31)2 + 0.29 +1.00 +0.93 TDUcomp+ 1.61% Span 6.7.8 Cnamparntor As Fouind Tnlprsnep (AFT~rrn,,2 Per Reference 4.6.1, the As Found Tolerance (AFT) is computed using the following equation:
AFrcomp = +/- VCAALCOmnp2 + DR Comp2 + MTEc. 2 AFrcomp = +/- 10.502 +1.002+ 0.312 AFTcomp = + 1.16% Span 6.7.9 Compr tor As l.pft Tn1PrnneP (ALT .
ALTcomp = CALcomp ALTcomp = +/- 0.50% Span
Computed By: Date: CAROLINA POWER & LIGHT COMPANY RNPCl/INST-1043 Checked By: Date: CALCULATION SHEET Pg. 20 of 45 l Rev: 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation Error Contributor Value T pe Section RA + 0.29% Span Random 6.7.1 CAL + 0.50% Span Random 6.7.2 DR + 1.00% Span Random 6.7.3 MTE + 0.3 1%Span Random 6.7.4 TE + 0.93% Span Random 6.7.5 As Left Tolerance (ALT) i 0.50% Span Random 6.7.9 As Found Tolerance (AF) + 1.16% Span Random 6.7.8 Total Device Uncertainty i 1.61% Span Random 6.7.7 (non-accident) _
Comparator Device Uncertainty Summary 6.8 ISOLATOR~MOTI)TILE 6.8.1 1qnlntnr'c I lnvprifierI Attrihfiltdp orf Rprenep Aerir:1cv (RA.,n,)
Per Reference 4.4.1, the reference accuracy of the NUS isolators are +/- 0.10% Full Scale.
Per Reference 4.5.11, the isolators are calibrated to +/- 0.15% Span, and the calibration procedure verifies the attributes of linearity but not hysteresis or repeatability. Per Reference 4.6.1, the following equation is utilized to compute the repeatability and hysteresis portions of the isolator reference accuracy:
Repeatability= RA i,= 0.10%Span
+A +/-o0.06% Span Hysteresis = i RA 0.10%Sn S = 0.06% Span RAisoi = +/- 10.062 +0.062 Therefore, RAiso = +/- 0.08% Span 6.8.2 TIolatnr Cnflihratinn Tnlerann' (C(A ISkim Per Rcfercnce 4.5.11, the isolators are calibrated to +/- 0.15% Span. Therefore, CALio = + 0.15% Span
Computed By: Date: CAROLNA POWER & LIGHT COMPANY Calculation ID:
______________________I CAOLIA PWER& LGHTCOMANYRNP-l/INST-1043 Checked By: Date: CALCULATION SHEET Pg. 21 of 45 Rev: 5 Project No.: File:
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Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation 6.8.3 Tholatnr Drift (=R;,,ni Per Attachments D and E, isolator drift is specified as + 0.20% Span. Therefore, DRi,.i = +/- 0.20% Span 6.8.4 lgalstor M&TE EffPet (MTF*,R,')
Per References 4.5.1 through 4.5.9, two DMMs are used to calibrate the isolators. Each DMM has an accuracy of +/- 0.10% Reading. The total MTE term is the SRSS of the individual DMM accuracy terms. For conservatism, a maximum reading of 5 Vdc is used to compute the accuracy of the DMMs as follows:
MTEisoi = +/-_I(2 (0.10% Reading3( Vdc
'~*~ 1 4 Vdc )
MTEi, 0 i = +/- 0. 18% Span 6.8.5 TIolatnr Temperhtire Fffeet (TCIF;:od Per Reference 4.4.1 and Section 5.9, the bounding NUS isolator temperature effect is given as + 0.5% Full Scale per 50 0 F change in temperature from the temperature at the time of calibration. Per Design Input 5.5, a change in temperature of 42 0 F (23.330C) is used to compute the isolator temperature effect. Therefore,
+0.5%
(=S 5 Vdc Y100% Span Y 42OF)
Full Scale 100% FullScaleX 4 Vdc ~50OF)
TEisoi = +/-0.53% Span 6.8.6 Isn1itor Power !SupplyFflPet Xf;folR Per Reference 4.4.1, no uncertainty for the isolator power supply effect is specified. Since the isolators are powered by regulated instrument buses, the isolator power supply effect is considered to be negligible. Therefore, PSEisoi = N/A
Computed By: Date: CAROLNA POWER LIGHT COMPANY Calculation it ID:
CAROINAPOWE
& IGHTCOMANYRNP-IIINST.1043 Checked By: Date: CALCULATION SHEET Pg. 22 of 45 Rev: 5 Project No.: File:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation 6.8.7 Tnlatfnr Tntnl Deviep I Ineprtninty (TDl TJi,)
Total Device Uncertainty is computed using the following equation:
TDUisat = + V(CAL iSl + MTE ) + RAsol,2 + DRv,,2 +TEi.,,2 TDUis1 = +/- 1(0. 15+0.18)2 +0.082 +0.202 +0.532 TDUioI = +/- 0.66% Span 6.8.8 Isolatar Ay, Fnidnrl Tnlerance (AFMhgni)
Per Reference 4.6.1. the As Found Tolerance (AFT) is computed using the following equation:
AFrisoi = +/- SCALD +DR + MTE_
AFTri,,= +/- 0.152 +0.202 +0.182 AFriSOi = +/- 0.31% Span 6.8.9 Iso1ntl r AR left Tnlernnrp (AT .T.,A Per Reference 4.6.1, the As Left Tolerance (ALT) is computed using the following equation:
ALTisoi = CALisot ALTi501 = +/- 0.15% Span
Computed By: Date: CAROLINA POWER & LIGHT COMPANY Calculation ID:
CAROINAPOWE
& IGHTCOMANYRNP-I/INST.1043 Checked By: Date: CALCULATION SHEET Pg. 23 of 45 l Rev: 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation Error Contributor Value Type Section RA + 0.08% Span Random 6.8.1 CAL + 0.15% Span Random 6.8.2 DR + 0.20% Span Random 6.8.3 MTE + 0.18% Span Random 6.8.4 TE + 0.53% Span Random 6.8.5 As Left Tolerance (ALT) + 0.15I% Span Random 6.8.9 As Found Tolerance (AFT) + 0.3 1% Span Random 6.8.8 Total Device Uncertainty _ 0.66% Span Random 6.8.7 (non-accident! . .______________ .
Isolator Module Uncertainty Summary 6 .9 IN.DICATOR 6.9.1 Ind~cntnr's Unverifiod Aftrihiit" of Rte-Prenre Acceuirncy (RAI,,,4 Per Reference 4.4.2, the reference accuracy of the indicator is + 2.00% Span and includes the effects of linearity, hysteresis, and repeatability (Design Input 5.5). Per References 4.5.1 through 4.5.9 and 4.5.11, the indicator is calibrated to +/- 2.00% Span at nine points (5 up and 4 down). Therefore, the calibration procedure verifies the attributes of linearity and hysteresis but not repeatability. Per Reference 4.6.1, the following equation is utilized to compute the repeatability portion of the indicator reference accuracy:
RA1,, 2.00% Span Repeatability = + Ail= + 2+/- 0 =S+ 1.15% Span Therefore, RAiod 1.15% Span 6.9.2 Indl eriffnr Calffirstion Th~rnlerpn (CAT ,,
Per References 4.5.1 through 4.5.9, the indicator is calibrated to +/- 2.00% Span. Therefore, CALind = +/- 2.00% Span
Computed By: Date: CAROLINA POWER & LIGHT COMPANY RNPClcNSTi 1043 Checked By: Date: CALCULATION SHEET Pg. 24 of 45 lRev: 5 Project No.: File:
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Calculation
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Main Steam Pressure Uncertainty and Scating Calculation 6.9.3 Jndeittnr Drift °R;...d Per Attachment G. indicator drift is specified as + 1.00% Span per year. Per Reference 4.6.1, the time interval between calibrations is 22.5 month (18 months + 25%), and the following equation is used to compute the indicator drift:
DRn 1.00% Span 22.5 months D~l~d
= +/-12 months)
DRind = 1.37% Span 6.9.4 Indicatnr M&TE TEffert (MT, 1,,a Per References 4.5.1 through 4.5.9, one DMM with an accuracy of +/- 0.25% Reading is used to calibrate the indicator. The calibration points are cardinal points on the indicator scale (References 4.5.1-9). Therefore, the indicator resolution is not included in the MTE term. For conservatism, a maximum reading of 5 Vdc is used to compute the accuracy of the DMM as follows:
MTEind = +/- (0.25% Rcading 4 Vdc) = + 0.3 1% Span 6.9.5 Tndkietnr Tempersttiwre Fffert (TEl..
Per Attachment G, the indicator temperature effect is specified as +/- 0.10% Span per 10C change from the temperature at the time of calibration. Per Design Input 5.2, a change in temperature of 9.40 C is used to compute the indicator temperature effect.
TEind = +/- 0.1O%Span( 9. )
TEind = +/- 0.94% Span 6.9.6 Indlictor Power Aupply Ffef (PTSRlnd)
Per References 4.1.1 through 4.1.3, the indicators are not powered by an external source.
Therefore, there is no indicator power supply effect.
PSEind = N/A
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation 6.9.7 4nrlimnfor RPndshiloty (Rftm)
Per Reference 4.6.1, the indicator readability term is 1/2 of the smallest indicator scale demarcation. Per Reference 4.1.9, the indicator has a scale of 0 to 1400 psig with minor demarcations of 20 psig. Therefore,
( 20 psigY 100% Span 0
=t ~
R~ind 2 1400psig + Span 6.9.8 Indklitnr Totvl DTevice I Ineertninty CTIJTVA Total Device Uncertainty is computed using the following equation:
TDUind = +/-V(CAL,,d + MTEi.,)2 + RAQi2+ DRinr2+TEi,,d2+ RDind2 TDUind = +/- VI(2.00+0.31)' +1.152 + 1.372 +0.942 +0.7 12 TDUind = +/- 3.15% Span 6-9-9 Indictnr As Fnound 'I'nlprsnee (AFTi,.O Per Reference 4.6.1, the As Found Tolerance (AFF) is computed using the following equation:
AFTind =+CALnd 2 + DR id2 + 'T=in 2 AFTind = +/- 12.002 + 1.372 + 0.312 AFTind = +/- 2.44% Span 6-9910 lndrientnr As Tgft Toleraniet (At T.Ti Per Reference 4.6.1, the As Left Tolerance (ALT) is computed using the following equation:
ALTind = CAL-nd ALTind = +/- 2.00% Span
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Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation Error Contributor Value T Section RA + 1.15% Span Random 6.9.1 CAL + 2.00% Span Random 6.9.2 DR + 1.37% Snan Random 6.9.3
+ 0.31% S an Random 6.9.4 TE + 0.94% Span Random 6.9.5 RD + 0.71% Span Random 6.9.7 As Left Tolerance (ALT) + 2.00% Span Random 6.9.10 As Found Tolerance (AFT) + 2.44% Span Random 6.9.9 Total Device Uncertainty +/- 3.15% Span Random 6.9.8 (non-accident)_
Indicator Uncertainty Summary 7.0 TOTAl. LOP ITNCFRTAINTY (TIll)
This section presents the total loop uncertainties for each function addressed by this calculation. Section 6.1 of this calculation provides the justification for which loop functions must consider accident environmental conditions. If a function is not required during accident operation, no total loop uncertainty for accident operation is computed for that function. If a setpoint must be available under normal, accident, or seismic operating conditions, a total loop uncertainty for the setpoint is calculated for the applicable conditions.
Computed By: Date: CAROLINA POWER & LIGHT COMPANY Calculation ID:
RNP_1IINST-1043 Checked By: Date: CALCULATION SHEET Pg. 27 of 45 Rev: 5 Project No.: File:
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Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation 7.1 Tntnl hong llneertsninty - Plnnt normal 7.1.1 Tntfl l.nnp l hnwrtninty--Inrkirtnr PT-474 475 476, 4R4 4R5 446- 494, 49- andA49 Per Reference 4.6.1, the total loop uncertainty associated with the indicator is computed with the following equation:
TLUind = +/- VTDU,T,, +TDU^,o, 2 +TDUid 2 + norPME TLUind = 0.472 +0.662 +3. 12 + 0.0% Span TLUind = +/- 3.25% Span TLUi 0d = +/- 45.50 psig 7.1.2 Tntnl lInnp llnertninty-iniiu tn .RFES Per Reference 4.6.1, the total loop uncertainty at the input to ERFIS is computed with the following equation:
2 + norPME TLUERMF = +/- TDUim¢ 2+2*TDU-, 50 TLUERFIS =+/- N0.472 +2*0.662 +O.O% Span TLUERFIS= +/- 1.05% Span TLUERFIS = + 14.70 psig 7.1.3 TatAl loop Uneeroninty Cnmpirntnr (pregiuirp input tn high stesm flnw/low stean preccllr ptC-474A, 4RSA 496A Per Refcrcnce 4.6.1, the total loop uncertainty for the pressure setpoint input to the High Steam Low/Low Steam Line Pressure safeguards trip that is computed with the following equation:
Computed By: Date: CAROLINA POWER & LIGHT COMPANY Calculation ID:
RNP-IA1NST-1 043 Checked By: Date: CALCULATION SHEET Pg. 28 of 45 Rev: 5 Project No.: Fite:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation TLUcomp = + TDU.I +TDUCO. +2norPME TLUcomp = +/- 0.472 + 1.612 + 0.0% Span TLUcomp = +/- 1.68% Span TLUcomp = +/- 23.52 psig 7.1.4 Totni 1 np1 Tnrf~Int prrstnr (ctem preuire differentizil' PMU4-74R 475 476 4R4 48R1 4R6 494, 495 426B Per Reference 4.6.1, the total loop uncertainty for the pressure setpoint input to the high steam pressure differential safeguards trip is computed with the following equation:
TLUsP/sP+/-=+/-lTDUt ,2 +TLUshp 2+TDUCOM 2 + norPME + norPMEsnpcss Where:
TLUshp = + 2.21% Span (from Section 7.1.3 of Reference 4.2.1) norPMESHpress = +/- 0.0% Span (from Section 6.4 of Reference 4.2.1)
TLUsp/sp = +/- 10.472 + 2.212 + 1.6 12 + 0.0% Span + 0.0% Span TLUsp/sp =:+/- 2.77% Span TLUsr/sp = +/- 38.78 psig 7.2 Tnatl lonnp UTnertninfy - Arrident Per Section 6.1 the Accident Error is 0. Therefore the Total Loop Uncertainty - Accident is the same as normal operating.
7.3 Tntsl I.nnp llnrertninty - Pn-tAccidtent Per Section 6.1 the Accident Error is 0. Therefore the Total Loop Uncertainty - Post Accident is the same as normal operating.
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Checked By: Date: CALCULATION SHEET Pg. 29 of 45 lflew 5 Project No.: File:
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Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation 7.4 Totil Loop I Inrertninty - Poct .Sigmi' Pcr Reference 4.7.7 the instrument loop must remain operable post seismic.
7.4.1 Totsl T.oop I Inrertninly - Tndlentnr P1-474 475 476 484 4R5 4R6, 494- 45 nnnd 496 Per Reference 4.6.1, the total loop uncertainty associated with the indicator is computed with the following equation:
TLUind = +-4TDUxiii2 +TDUisol2 +TDUind2 +SExntt2 +norPME TLUind = +/- 10.472 + 0.662 + 3. 152 +0.252 + 0.0% Span TLUind = +/- 3.26% Span TLUind = +/- 45.64 psig 7.4.2 Tnt-ml I.oop IT ncertsinty - input to RFIRS Per Reference 4.6.1, the total loop uncertainty at the input to ERFIS is computed with the following equation:
TLUERFIS = +/- VTDU,.,2 + 2*TDU1 , 012 +SE,,,r 2 + norPME TLUERFIS = + 0.47 + 2
- 0.662 + 0.252 + 0.0% Span TLUERFIS = +/- 1.07% Span TLUERRiS = +/- 14.98 psig
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Main Steam Pressure Uncertainty and Scaling Calculation 7.4.3 Totnl nns 1ineeirtfninty Comparntor (pricciwre input La high stegm flnwflow steam precsre Pry-474A,4RSA 496A Per Reference 4.6.1, the total loop uncertainty for the pressure setpoint input to the high steam flow/low steam pressure safeguards trip that is computed with the following equation:
TLUs =+/-VTDU x 2 +TDU 2+SE 2+ norPMEl TLUSF1SP = +/-- .472 +1.612 +0.252 +0.0% Span TMUsFsp = +/- 1.70% Span TLUsF/sP= +/- 23.80 psig 7.4.4 Total Loop 1nrertfninty Comparator (stenm prdsllr diffprentinl) T PC--47413 475 476 494 4RSR 4R6, 494 495 496F Per Reference 4.6.1, the total loop uncertainty for the pressure setpoint input to the high steam pressure differential safeguards trip is computed with the following equation:
TLUsp/sp = +/- jTDU~t 2,+ TU 2 +TDU 2
+SE,.,, 2 + norPME + norPMEsnpress Where:
TLUsp = 2.27% Span (from Section 7.4.1 of Reference 4.2.1) norPMEpsH~p, = +/- 0.0% Span (from Section 6.4 of Reference 4.2.1)
TLUspisp = +/- 10.472 + 2.272 + 1.6 1I + 0.252 + 0% Span + 0% Span TLUsp/sp = +/- 2.83% Span TLUsp/sp = +/- 39.62 psig
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& IGHTCOMANYRNP-IJINST-11 043 CAROINAPOWE Checked By: Date: CALCULATION SHEET Pg. 31 of 45 Rev: 5 Project No.: File:
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Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation 7.4.5 Tntal lJnnp I ne~rtainty-Input to .Stenm Flow The main steam pressure transmitters provide an input to the steam flow circuitry for density compensation per Reference 4.2.6, Sections 5.17 and 6.4.1. Per Reference 4.6.1, the total loop uncertainty for the pressure input to the steam flow circuitry is computed with the following equation:
2 2 ThUSE = +/-TDU +SE.
TLUSF = +/- ,0.472 + 0.252 TLUSF = +/- 0.53% Span TLUsF= +/- 7.42 psig 7.5 T.OOP AS FOIND TOLF.RANCE.
7.5.1 Lnop AR Friinnd Tolerrnnce - Indirator PT-474. 475 476 4R4 4R5, 486i 494 4Q5 nnd 496 Per Reference 4.6.1, the following equation is used to calculate the indicator Loop as Found Tolerance (LAFTind):
LAFTid = +/-AD 2+ AFIr,0 2
+ AF1 2 LAFTijd = +10.3 82 +0.312 +2.442 LAFTind = + 2.49% Span LAFTind = +/- 34.86 psig 7.5.2 ltoop AN Fniind TO1PrrnceP-nplft nFRFIT; Per Reference 4.6.1, the following equation is used to calculate the ERFIS input Loop as Found Tolerance (LAFTERIS):
LAFTERflS = +/-4AFr 2 +2
- AFI1,2 LAirER"s =+/- 140.382 +2*0.312
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Main Steam Pressure Uncertainty and Scaling Calculation LAFIrERFiS = + 0.58% Span LAFTERIS = +/- 8.12 psig 7.5.3 1 nwAg Fmi'nd Tflertnnce - Inpnt tn H1igh S;teim FlawII .raw !St arm Precur Per Reference 4.6.1, the following equation is used to calculate the High Steam Flow/Low Steam Pressure input to safeguards actuation (LAFTsFlsr):
LAFrSFsp = + AFT, 2 + AfJ 2 LAFrsF/sp= ++/-N0.382+1.162 LAFSpF/sp = + 1.22% Span LAFsF/sP= +/- 17.08 psig 7.5.4 Unap AS Fmindl Talvrsne - TInpuit In Stexim Preqssirp fifferentinl)
Per Reference 4.6.1, the following equation is used to calculate the Steam Pressure Differential input to safeguards actuation (LAFrsp/sp):
LAFTspisp +VAAT2 + AFC2 + LAFrShp2
+/-
Where:
LAFI'shp is the Loop As Found Tolerance Steam Header Pressure = +/- 1.41% Span (from Section 7.5.3 of Reference 4.2.1)
LAFTspisp= + 10.38' +1.162 +A112 LAFrsp/sp = + 1.87% Span LAFrsp/sp = +/- 26.18 psig 7.6 CGROtP ASR F1TNI) TOT.FRAN!C 7.6.1 Gr;u11 AS Eamd Thlerrnwp - Tndira ot Pr-474 475 476 4R4 4R5 4R6 494 495 AND 496
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Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation Per Reference 4.6.1, the following equation is used to calculate the indicator Group As Found Tolerance (GAF~ind):
GAFrInd = +/- VAFVIso + AFTid2 GAFrird = +/- /0.312 + 2.44-GAFsind = +/- 2.46% Span GAFrind = +/- 34.44 psig 7.6.2 Grnonp As Found Tnlernnet - Inpilt to E.RFIS Per Reference 4.6.1, the following equation is used to calculate the ERFIS Group As Found Tolerance (GAF-IERrs):
2 GAFTERFRS = +/- 2*AFFU.i GAFTERFis = +/-2 0.312 GAFITERFIS = + 0.44% Span GAFTERFS = +/- 6.16 psig 7.6.3 Grntip As Found TnIernnep - Input tn High SRlt#nm FlnwIt.nw Stfsm Pre.ssre Per Reference 4.6.1, the following equation is used to calculate the High Steam Flow/Low Steam Pressure input to safeguards actuation (GAFTsr/,sP):
GAFTspsp = +AFT, GAFTSF/SP = +/- 1.16% Span GAFTIsvsP = + 16.24 psig
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Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation 7.6.4 Grntp As Fnwind Tleranee - Tnpitt to .Spenm Prepsigre Differentiatl Per Reference 4.6.1, the following equation is used to calculate the Steam Pressure Differential input to safeguards actuation (GAFTspisp):
GAFTsp/sp = + AFT GAFT'sptsp = 1. 16% Span GAFTsp/sp+/- 16.24 psig 8.0 DISCI TSSION (OF RF0IT ITS 8.1 Snfety lnteetion High Stp nm Flnw Cnincilent wifh Stenm Iine 1 nw Precquire PC-474A 4RSA 496A The function of this setpoint is to provide input to the Safety Injection and Main Steam Line isolation logic. This results in an isolation of the Main Steam System and Safety Injection for a condition of High Steam Flow coincident with Low Main Steam Line Pressure. This occurs if the steam flow is high and the steam pressure decreases below the Analytical Limit.
Therefore, the low pressure setpoint is a decreasing setpoint and is computed using positive total loop uncertainties. Per Reference 4.6.1, the following equation is used to calculate the maximum value for this setpoint:
SPfirt 2 AL + TLU Where:
SPjit = calculated setpoint limit AL = Analytical Limit TLU = Total Loop Uncertainty Per Section 7.4.3, the Total Loop Uncertainty (TLU) associated with this setpoint is +/- 23.80 psig. Due to decreasing setpoint the positive value is used.
Per Reference 4.7.1, Table 15.1.5-2, the Low Steam Line Pressure Analytical Limit is 558 psig (572.7 psia). Therefore, SP1 ij, 2 558 psig + 23.80 psig SPlimit 2 581.80 psig
Computed By: Date, CAROLINA POWER & LIGHT COMPANY Calculation ID:
& IGHTCOMANYRNP-I/INST*1043 CAROINAPOWE Checked By: Date: CALCULATION SHEET Pg. 35 of 45 lRev: 5 Project No.: File:
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Title:
l Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation Per References 4.5.1,4.5.5, and 4.5.9 the Main Steam Line Low Pressure setpoint is currently set to 614 psig decreasing. This is the Technical Specification nominal trip setpoint. The Margin (M) associated with this setpoint is computed as follows:
M = Calibrated Setpoint - SPlimit M = 614 psig - 581.80 psig M = 32.20 psig Per Section 7.6.3 of this calculation, the Group As Found Tolerance (GAFT) is +/- 16.24 psig.
Per Reference 4.6.1, the Allowable Value (AV) associated with this setpoint is computed as follows:
AV > SP - GAFF, where SP is the calibrated setpoint AV 2 614 psig - 16.24 psig AV 2 597.76 psig Per Section 7.5.3 of this calculation, the Loop As Found Tolerance (LAFT) is +/- 17.08 psig.
Per Reference 4.6.1, the Channel Operability Limit (COL) is computed as follows:
COL = SP-LAFT, where SP is the calibrated setpoint COL = 614 psig - 17.08 psig COL = 596.92 psig
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Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation Setpoint (614 psig decreasing)
A6 A L Loop As Found Tolerance (17.08 psig)
Group As Found Tolerance (16.24 psig)
Calculated Allowable Value (597.76 psig)
.A tionalMargi ( 32.20 psig)
_ I _ Channel Operability Limit (596.92 psig) 4 Bias Pressure = 558 + 23.8 = 581.8 psig Total Loop Uncertainty (23.80 psig)
-I Analytical Limit (558 psig)
Safety Injection High Steam Flow Coincident With Steam Line Low Pressure Dliagram 8.2 Stpnm Linp High Difrerpnfinl PresCglrP Pr74R T47s 476 4PR4 4ARM 4ARA6 Q4 AQ; A96R The function of this setpoint is to provide input to the Safety Injection and Main Steam Line isolation logic. This results in an isolation of the Main Steam System and Safety Injection for a condition of High Steam Line Differential Pressure. This occurs if the Steam Header and Main Steam Line Pressures are different due to a steam line rupture on the Steam Generator side of the Main Steam Isolation Valves. During normal operations, a 20 to 30 psig differential exists between the Main Steam Line and the Steam Header. Per Reference 4.2.3, safety analyses assume a setpoint value of 100 psig +/- 60 psig with satisfactory results.
This provides two analytical limit values for evaluation; 40 psig and 160 psig. The logic circuitry functions by sensing when Main Steam Line Pressure increases above Steam Header Pressure to yield the predetermined (setpoint) differential of 100 psig. Therefore, this is a setpoint actuated by an increasing process signal, so negative uncertainties are used when evaluating the adequacy of the setpoints / allowable values.
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HNP4IINST-1043 Checked By: Date: CALCULATION SHEET Pg. 37 of 45 TRev 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation Seftpnint Fvallatiton with 160 PSCTG Annlyticnl L imit Per Reference 4.6.1, the following equation is used to calculate the maximum value for this setpoint using the 160 psig Analytical Limit:
SPlimit < AL - TLU where, SPji = calculated setpoint limit AL = Analytical Limit TLU = Total Loop Uncertainty Per Section 7.4.4, the total loop uncertainty (TLU) associated with this setpoint is
+ 39.62 psig. Per Reference 4.7.2, the nominal trip seipoint is 100 psig. The setpoint is evaluated below against the 160 psig Analytical Limit.
SP 1imit < 160 psig - 39.62 psig SPumit 5 120.38 psig Per Reference 4.7.2, the nominal trip setpoinl is 100 psig differential. The Margin (M) associated with this setpoint is computed as follows:
M = SPunt - Calibrated Setpoint M = 120.38 psig - 100 psig M = 20.38 psig Per Section 7.6.4 of this calculation, the GAFF is +/- 16.24 psig. Per Reference 4.6.1, the Allowable Value (AV) associated with this setpoint is computed as follows:
AV < SP + GAFIT, where SP is the calibrated setpoint AV 100 psig + 16.24 psig AV < 116.24 psig Per Section 7.5.4 of this calculation, the Loop As Found Tolerance (LAFT) is +/- 26.18 psig.
Per Reference 4.6.1, the Channel Operability Limit (COL) is computed as follows:
COL = SP + LAFG, where SP is the calibrated setpoint COL = 100 psig + 26.18 psig COL= 126.18 psig
Computed By: Date:
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> Calculation ID:
__RNP-IANST-1043 Checked By: Date: CALCULATION SHEET Pg. 38 of 45 lRev: 5 Project No.: File:
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Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation
'tptrint RliVfhI1tirn with 40 P2.TG Analytica1l l imit Per Reference 4.6.1, the following equation is used to calculate the minimum value for this setpoint using the 40 psig Analytical Limit:
SPmit 2 AL + TLU where, SPfnit = calculated setpoint limit AL = Analytical Limit TLU = Total Loop Uncertainty Per Section 7.4.4, the Total Loop Uncertainty (LU) associated with this setpoint is
+/- 39.62 psig. Per Reference 4.7.2, the nominal trip setpoint is 100 psig. The setpoint is evaluated below against the 40 psig Analytical Limit.
SPHimjc > 40 psig + 39.62 psig SPit 2 79.62 psig Per Reference 4.7.2, the nominal trip setpoint is 100 psig differential. The Margin (M) associated with this setpoint is computed as follows:
M = Calibrated Setpoint - SPtimit M = 100 psig - 79.62 psig M = 20.38 psig Per Section 7.6.4 of this calculation, the GAFr is +/- 16.24 psig. Per Reference 4.6.1, the Allowable Value (AV) associated with this setpoint is computed as follows:
AV 2 SP - GAFI, where SP is the calibrated setpoint AV > 100 psig - 16.24 psig AV > 83.76 psig Per Section 7.5.4 of this calculation, the Loop As Found Tolerance (LAFI) is +/- 26.18 psig.
Per Reference 4.6.1, the Channel Operability Limit (COL) is computed as follows:
COL = SP - LAFr, where SP is the calibrated setpoint COL= 100 psig-26.18 psig COL = 73.82 psig
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Main Steam Pressure Uncertainty and Scaling Calculation Analytical Limit (160 Psig)
_ e ioopUncertainty (39.62 psig)
Channel Ovcrabilitv Limit (126.18 vsiz)
I Loop AFT (26.18 psig) 4.
Calculated Allowable Value (Sl 16.24 psig)
I M
Margin 20.38 psig L
Total Loop Uncertainty (39 ILi Group AFT (16.24 psig)
)Calculated X Setpoint (100 psig)
Group AFT (16.24 psig)
Allowable Value (>83.76 nsiu)
I A t.. I'l' I .
F -Up ttr- J tZu. 10 PNlgI Channel Operabilitv Limit (73.82 Asia) 4 Margin (20.38 psig)
Analytical Limit (40 psig)
Steam Line High Differential Pressure The diagram above demonstrates that the nominal trip setpoint of 100 psig is adequate to protect either analytical limit.
8.3 Impaet on Jmprrveld Teehnienl 1pedlfientinns Table 3.3.2-1 item g (High Steam Flow coincident with low steam line pressure) allowable value is 2 605.05 psig. The calculated value is 2597.76 psig. The Technical Specification value is conservative with respect to the calculated value.
Table 3.3.2-1 item L.e Allowable Value for the Steam Line Differential pressure is given as
< 108.95 psig. The calculated Allowable Value for this trip setpoint is <116.24 psig (283.76 psig). The Technical Specification Value is conservative with respect to the calculated values.
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RNP-I/INST.1043 Checked By: Date: CALCULATION SHEET Pg. 40 of 45 Rcv 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation 8.4 lmpactnJn I AR There is no impact on the UFSAR.
8.5 Tmpnrt nn fe"dgn Rnda 1)lwiDmenmc There is no impact on Design Basis Documents.
8.6 Impaet on fthpr Cnfleuiatinns The outputs of this calculation are inputs to and impact the following calculations:
RNP-II1NST-1040 RNP-VINST-1050 RNP-I/INST-1 120 RNP-I/INST-I 121 RNP-I/INST-1 122 RNP-I/INST-1 124 RNP-I/INST-1 125 RNP-IIINST-1 144 RNP-F/NFSA-0045 8.7 Impact nn Phint PrnePif ir" The results of this calculation impact the following plant procedures:
LP-901 LP-906 LP-902 LP-907 LP-903 LP-908 LP-904 LP-909 LP-905 MMM-006 Appendix B-3 PIC-845
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Main Steam Pressure Uncertainty and Scaling Calculation 9.0 SCALING CALCUlATIONS 9.1 PRFSSI IRF TRANSMITTER ( 7T-4744749 47. 4X4, 4X5 48.86 494 495 496)
Per Section 3.0, the pressure transmitters are Rosemount model 3051NG Smart Pressure Transmitters, Range Code 5. which has an upper and lower range limit (URL and LRL) of 2000 psig and -2000 psig, respectively (per Attachment B). Per Reference 4.5.11, the Main Steam Pressure transmitters are calibrated 0 to 1400 psig (4-2OmAdc) 1-5Vdc. Therefore, the span of each loop is 1400 psig.
Per Reference 4.7.6 and field measurements, the pressure transmitters are located 20.03 feet below the instrument tap. Per Reference 4.2.4, the nominal post power up-rate steam header pressure is 800.5 psia. A sensing line fill fluid of pure water at 90 0 F and 800.5 psia is used to determine the hydrostatic head on the transmitter using the following equation:
Hydrostatic Head = ph 144 Hydrostatic Head = 8.66psi Where, h = height of sensing line
= 20.03 feet p = sensing line fill fluid density used for scaling
= 62.26799 Ibmnft 3 @ 90°F, 800.5 psia NOTE: The factor 144 is used to convert from lbf/ft to lbf/in2. At standard gravity, Ibm may be replaced with lbf.
The hydrostatic head is converted to voltage units as follow:
Hydrostatic head = 4Vd
{ 8.66psig 1400psig)
_ 5 I 0.025Vdc The following equation is used to compute the required voltage output for a given pressure (P) input to the transmitter:
E ( 4Vdc )
l400psig) +.0d
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RNP-I/INST- 1043 Checked By: Date: CALCULATION SHEET Pg. 42 of 45 lRev: 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation The equation is modified to account for the hydrostatic head by subtracting the voltage representation of the hydrostatic head from the 1.000 Vdc pedestal as follows:
E ( 4Vdc P+0.975Vdc Per Section 6.6.10 of this calculation, the As Found Tolerance (AFT) of the transmitter is
+/- 0.38% Span. Per Section 6.6.11 of this calculation the As Left Tolerance (ALT) of the transmitter is +/- 0.20% Span. The AFT and ALT are converted to voltage units utilizing the following equations:
AFr(Vdc) = +/- 4Vd AFT(%Span) = +/-4Vd( 0.38%Span =+/-0.015 Vdc 100) 100)
ALT(Vdc) = +/-4Vd-( ALT(%Span) = +/-4Vdrf 0.2%Span +/-0.008 Vdc T100) e100w The calibration table for the transmitter is as follows:
Required Output Desired Input As Found Tolerance As Left Tolerance (psig) (Vdc) (Vdc) (Vdc) 0 0.975 0.960 to 0.990 0.967 to 0.983 350 1.975 1.960 to 1.990 1.967 to 1.983 700 2.975 2.960 to 2.990 2.967 to 2.983 1050 3.975 3.960 to 3.990 3.967 t 1400 4.975 4.960 to 4.990 4.967 to 4.983
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I
_______________________ CROLNA OWE & LGHTCOMANYRNP-l/INST-1043 Checked By: Date: CALCULATION SHEET Pg. 43 of 45 1Rev: 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation 9.2 IS^OLATOR MODl E (PM.474f, 475C, 476, 4AMR. 48511 486B1 4941) 495C, 4961.
PM-474A, 475A. 476A, 484A, 485A, 4864A 494A, 495A, 496AI The isolator transfer function is as follows:
Eo = Et Per Section 6.8.8 of this calculation, the As Found Tolerance (AFT) of the isolator is
+/- 0.31% Span. Per Section 6.8.9 of this calculation the As Left Tolerance (ALT) of the isolator is +/- 0.15% Span. The AFT and ALT are converted to voltage units utilizing the following equations:
AFT(Vdc) = + 4Vdc( AFT(%Span) +4Vd 0.31 %Span = +/-0.012 Vdc 100 ) io ALT(dc) 4V(ALT(%Span) = +/-4Vd (0.15%7Span +/-006 d ALT(Vdc) = +/-4VdcI (0O 100 P c 100 =+00006 Vdc The calibration table for isolator as follows:
Required input Desired Output As Found Tolerance As Left Tolerance (Vdc) (Vdc) (Vdc) (Vdc) 1.000 .000 0.988 to 1.012 0.994 to 1.006 2.000 2.000 1.988 to 2.012 1.994 to 2.006 3.000 3.000 2.988 to 3.012 2.994 to 3.006 4.000 4.000 3.988 to 4.012 3.994 to 4.006 5.000 5.000 4.988 to 5.012 4.994 to 5.006
Computed By: Date: CAROLINA POWER & COMPANY Calculation ID:043
& LGHT CAROINAPOWE IGHTCOMANYRNP.IAlNST-1 Checked By: Date: CALCULATION SHEET Pg. 44 of 45 Rev: 5 Project No.: File:
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Main Steam Pressure Uncertainty and Scaling Calculation 9.3 COMPARATOR (Pf?-474A, 474R, 475, 476. 484, 4ALA 48ARU486, 494. 495, 496A, 496H)
The comparator transfer function below is used to convert comparator setpoints from engineering units to Vdc, except that the 1.000 Vdc pedestal voltage is not used for the 100 psig setpoint since it is a differential pressure setpoint:
Setpoint(Vdc) = 4 Vd Setpoint(psig) + 1.000 Vdc 1400 psig Sections 8.1 and 8.2 show bistable setpoints as 614 psig and 100 psig, respectively. Per Section 6.7.8 of this calculation, the As Found Tolerance (AFT) of the comparator is
+/- 1.16% Span. Per Section 6.7.9 of this calculation the As Lert Tolerance (ALT) of the comparator is +/- 0.50% Span. The AFT and ALT are converted to voltage units utilizing the following equations:
AFI'(Vdc) = +/- 4Vd A 100p ) =+4Vd .16%Span = +/-0.046 Vdc (ALT(%Span) (0.5%7Span ALT(Vdc) = +/-4Vdq =0+/-4Vdc 100 = 0.020 Vdc Setpoint Setpoint As Found Tolerance As Left Tolerance (vSi2 (Vdc) (Vdc) 614 2.754 2.708 to 2.800 2.734 to 2.774 100 I 0.286 0.240 to 0.332 0.266 to 0.306
Compted Dte: y: alculation ID:
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Main Steam Pressure Uncertainty and Scaling Calculation 9A INDIC(ATOR (PI-474 475 476, 484 48R5 4.6 494, 494) 496i lo = (1400 psig(E -1.OOOVdc)
Per Section 6.9.9 of this calculation, the As Found Tolerance (AFT) of the indicator is +/-
2.44% Span. Per Section 6.9.10 of this calculation, the As Left Tolerance (ALT) of the indicator is +/- 2.00% Span. The AFT and ALT are converted to voltage units utilizing the following equations:
AF'(Vdc) = 24Vdc AFT(%Span) )= +/-4Vdc 2.44%Span AF(d)=+/-4d~ 100 3 +/-0.097 WC
=+/-.07 d ALT(Vdc) = +/-4Vdci (%Spa=n +/-4Vdc 2.00oSpan =+0.080 Vdc 100 100 The calibration table for indicator as follows:
Desired input Required Output As Found Tolerance As Left Tolerance (Vdc) (psig) (Vdc) (Vdc) t.000 0 0.903 to 1.097 0.920 to 1.080 2.000 350 1.903 to 2.097 1.920 to 2.080 3.000 700 2.903 to 3.097 2.920 to 3.080 4.000 1050 3.903 to 4.097 3.920 to 4.080 5.000 1400 4.903 to 5.097 4.920 to 5.080
Computed By: Date: CAROLINA POWER & LIGHT COMPANY RNPCluINSTo1043 Checked By: Date: CALCULATION SHEET Pg.1 of 1 Rev: 5 Project No.: ATTACHMENT A File:
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Main Steam Pressure Uncertainty and Scaling Calculation ATTACHMENT A CALCULATION MATRIX REFERENCE TABLE DOCUMENT NUMBER DOCUMENT TITLE TYPE OF DOCUMENT Drawing 5379-03488 Hagan Wiring Diagram Drawing _ 5379-03489 Hagan Wiring Diagram Drawing 5379-03490 Wiring Diagram Drawina _ 5379-03491 Hagan Wiring Diagram Drawing5379-03492 Hagan Wiring Diagram Drawing G-1 90184 General Arrangement Drawing G-1901 92 Turbine Building DrawingHBR2-1 0618 Inservice Inspection Drawing HBR2-11135 sheet 2 RTGB Calculation RNP-IIINST-1 050 Steam Header Pressure Uncertainty Proceduire l P-901 to LP-909 Loop Calibration Procedures Procedure PIC-845 Rosemount Smart Transmitters Procedure EGR-NGGC-01 53 Engineering Setpoints Procedure TMM-026 Reg Guide 1.97 Calculation RNP-l/INST-1 120 Uncertainty of Manual Feed Flow Calorimetric Calculation per OST-01 2 Calculation RNP-I/INST-1 121 Uncertainty of ERFIS Feed Flow
_Calorimetric Calculation Calculation RNP-l/INST-1 122 Uncertainty of ERFIS Steam Flow
__ ICalorimetric Calculation Calculation RNP-I/INST-1 124 ERFIS Steam Flow Automatic Calorimetric Uncertainty Calculation Calculation RNP-I/INST-1 125 ERFIS Feed Flow Automatic Calorimetric IUncertaintV Calculation Calculation RNP-l/INST-1 143 ULFM FW Flow and Temperature Unc.
Calculation RNP-l/INST-1 144 ULFM Feed Flow Based Automatic Calorimetric Uncertainty Calculation Calculation RNP-M/MECH-1 651 Containment Analysis Inputs Calculation RNP-I/INST-1 040 Steam Flow Loop Uncertainty and Scaling Calculation DBD DBD/R87038/SDO6 Reactor Safeguards and Protection System DBD '0381SD25 Main Steam System
Computed By: Date: CAROLINA POWER & LIGHT COMPANY RNP-tniNS I1043 Checked By: Date: ATTACHMENT B Pg91 of 3 Rev: 5 MODEL 3051N SMART PRESSURE TRANSMITTER FOR NUCLEAR SERVICE I Project No.: I File:
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Title:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation 00813-0100-4808 English August 2001 Rev. DA Rosemount Model 3051 N Smart Pressure Transmitter For Nuclear Service SPECIFICATIONS Nuclear Specifications Qualified for nuclear use per IEEE Std 344-1987 and IEEE Std 323-1983 (mild environment) as documented In Rosemount Report D2001019 Seismic TABLE Seismnic Specifictio s Summ__c_
Range During Seismic Post Seismic Specified Seismic Maximum Structural Model Code Accuwrov' Acnt irUcv Working Prepssure Intgrity 0.75% of URL (adoustable o doamping = 16 snc'l Maintained CD throughout 3051NG 0 3 075% of URL 0.25% of Span Upper Range LimIt seismic 4 cdisturbance
_ 0.25% of URL Performance Specifications Based upon zero-based calibrations, reference conditions, 4-20rnA analog output, and digital trim values equal to the span setpoints Reference Accuracy' Includes hysteresis, terminal-based linearity, and repeatability Mndeifl3me-,N Rone Cod Reference Accurracy
+/- 0.075% calIbrated span from 1:I to 10:1 2 -5 RDF
+/- (0.005% URL +0.025% span)
I from 101 to 1001 RDF
'RDF = Range Down Factor = URL / Calibrated Span
Computed By: Date: CAROLINA POWER & LIGHT COMPANY RNPalculST-1043 Checked By: Date: ATTACHMENT B Pg.2 of 3 Rev: 5 MODEL 3051N SMART PRESSURE TRANSMITTER FOR NUCLEAR SERVICE Project No.: .Fire Project
Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation Drift nrint AQFAN ) NCZ' NA Rn .deDrift I 1t (0OZI.URL + 0.2%O SPAN) FOR 30 MONTHS 2 -5 : 0.2% URL FOR 30 MONTHS Ambient Temperoture Effect' 2 Mirdg 3ns1 N ) I Nt; Qange Cr de Ambtent Temrnferatie Fffect rer F0F (28°Cr O 025 R 0 05t'%
sonn)
+/- (0.1% URL + 0.25% span) from 1:1 to 30:1 1 (0 14% URL + 0 lS% ron) from 301 to 50 1 2 -5 +/- (0.0125% URL + 0.0625% span) from 1:1 to 5:1
_ (0025% IRI + 0 125% soon) from 5S1 to 100 1 RDF = Range Down Factor = URL I Calibrated Span Exposure of isolator diaphragms to process temperatures above 185 OF (85'C) but below 250 IF (121 *C)produces a temperature effect of +/-1.0% of calibrated span In addition to the effects listed.
Power Supply Effect Less than +/-0.005% of calibrated span per volt for RDF S 10.
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Checked By: Date: ATTACHMENT B Pg.3 ol 3 Rev: S MODEL 3051N SMART PRESSURE TRANSMITTER FOR NUCLEAR SERVICE Project No.: File:
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Title:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation Span and Zero, Zero Elevation, and Suppression Zero and span values can be set anywhere within the range limits stated in Table 2, provided sensor limits are not exceeded.
Span must be greater than or equal to the minimum span stated in Table 2.
_TALE2. odels3051 N anQ51 NG Range and Sensor Limits Range Minirmm Span _M___ ann and Sensor rllmits Lowe PIl Model 3051 ND. NG Upper (URL) Model 3051 NO Model 3051 ND O 0.1 in -20 (25Pal 3.0 In H20 (750 Pa1 -3.0 in H20 (-750 Pal NA 1 0.5 in H20 (0 12 kPa) 25 in H20 (6.22 MPa) -25 in 1-H20(-6.22 ePa) NA 2 9 2.5 in H20 (0 9k~p 2 250 in H20 (62.2 kPa) -250 in H20 (-6.22 kPa) -250 in W20 (-62.2 kPa) 3 10 in H20 (2.48 kPa1 tOOOInH 20(248 kPa) .1000 in H 220f-248kPa1 0.5 sla (3.5 kPa abs) 4 3 psI (20.7 kPal 300 psi (2 070 ePa) -300 pSi (-2 070 kPa1 0.5 psia (3.5 kPa nbs) 5 20 DSi l138 kPa) 2000 Dsi (13 800 kPa1 *2000 psi (-13 800 kPa) 0.5 osia (3.5 kPabs1 Maximum Working Pressure Mnfdp 3051 N.J Static pressure limit Mnlel 3051 NG ane Mn4odal 30Q1 NA Upper range limit
- 1. EPR process 0-ring (Code B) Is limied to 2000 psi maximum working pressure.
- 2. See Table 1 for specified Seismic Maximum Working Pressure.
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& IGHTCOMANYRNP-IAINST-1043 Checked By: Date: ATTACHIMENT C Pg.1 of 1 Rev: 5 Project No.: File:
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Title:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation
[DELETED]
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Main Steam Pressure Uncertainty and Scaling Calculation ATTACHMENT I)
NUS Instruments Long Term Drift Test for NUS Modules - Final Report, Executive NUS instrUments 440 West Broadway - Idaho Falls, ID 83402 - Phone: 208-529-1000 - Fax: 208-524-9238 October 26, 2001 Pat Hartig FirstEnergy Nuclear Operating Company Beaver Valley Power Station P.O.Box 4 Shippingport, Pa 15077
Subject:
Long Term Drift Test 4LTDT) Results for NUS modules - Final Report, Executive Summary
Dear Mr. Pat Hartig:
NUS Instruments (NUSI), undertook a research and development project in 1996 to re-engineer instrumentation for use as replacements for the obsolete Hagan line of nuclear plant instrumentation. The NUSI replacement modules were designed originally using specifications written by Public Service Electric and Gas (PSE&G). The final specifications incorporated both original Hagan published specifications and new or additional plant-specific requirements. The final agreed upon specification formed the design basis for the NUS Instruments 800 Series product line that has been sold to many nuclear plants including Salem, H.B. Robinson, Turkey Point and Diablo Canyon.
NUSI has been requested by FENOC to supply instrumentation drift specifications for the 800 Series modules. We understand that these numbers are to be used to determine requirements for plant calibration cycles for these modules. The calibration cycle may be extended if it can be shown that the drift of the replacement modules is below specified criteria. This change would result in a significant savings in plant maintenance costs.
NUSI was contracted by PSE&G to conduct a 36-month Long Term Drift Test (LTDT).
This test was conducted on four classes of modules with four units of each type for a total of sixteen modules undergoing the test. The four classes of modules consisted of four Dual Alarm Modules (DAM), four One-channel Analog Isolators (OCA), four RTD Amplifiers (RTD), and four Four-Channel Summing Modules (SUM). A loop of instruments was also tested to determine overall loop drift.
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Checked By: Date: CALCULATION SHEET Pg.2 of 2 {Rev: 5 Project No.: ATTACHMENT D File:
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Title:
Main Steam Pressure Uncertainty and Scaling Calculation A1TACHMENT D (Cont)
NUiS Instruments Long Term Drift Test for NUS Modules - Final Report, Executive Drift was specified as a percentage of the upper range limit (URL) over an 18-month period. After 36 months of testing, NUSI can proudly state that all modules performed better than the stated specification. The specification and summary results are given below.
PEIFIIITEST R *SULTS ACCURACY DRIFT DRIFT (%URL) 2 sigma DRIFT MODULE C LA S S_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
RTD Q. LQA% 0940 % 0.365 %
OCA 0.5% _ 0.2% 0 048 % 0.074 %
DAM 0.5% 0.3% 0.083 % 0.127 %
SUIMQ. 5°0 0.6% 0.135 % 0.214 %
LQOP 0.5% INotspecified 0 115 % 0 186 %
NUSI is currently in the process of preparing the final test report which will provide greater details about the test modules and fixture, test procedure and processes, data and sampling intervals, analysis and plots showing the data trends. This data represents over 26,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> of testing and over 24,000 individual data measurements. NUSI can make available upon request the Excel 97 workbook that provides the data, analysis, and necessary graphing tools. This report will be available October 31, 2001.
It is also worth noting that several utilities have been conducting their own independent long term drift tests of a instruments installed in their loops. They can independently support that the NUSI 800 Series instruments meet or exceed the long term drift specification.
Please contact NUS Instruments for additional information.
SCIENTECH, Inc., NUS Instruments 440 West Broadway Idaho Falls, Idaho 83402 (208) 529-1000 (LaWanda Wold or Heath Buckland)
Respectfully, LaWanda Wold Facility Manager, Nt JS Instruments Office Address: Work Phono: 208.524.9236 SCIENTECH - Broadway Facsimile: 208.524.9238 440 West Broadway Idaho Falls, Idaho 83402-3638 E-mail: LWold(scientech.com 208.524.9200 Front Desk 208.524.9282 Fax
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Checked By: Date: CALCULATION SHEET Pg.1 ol 2 Rev: 5 Project No.: ATTACHMENT E File:
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Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation UEmnif frnm NTI innfirming Similarity of N rafnlir nl] Mfodlidec dafted O1UlSMi2 From: James Siedelmann@scientech.com Sent: Tuesday, January 15,2002 11:54 AM To: bobh@hursttech.com Subj.: Series SC993 and Series 800 Isolators Series SC993 isolators were manufactured by us under the names of Energy Incorporated, El Electronics, El Systems and El International. They are an early version of stand alone isolator intended for electrical isolation of the inputs from the outputs. They were encapsulated and had terminal blocks for connection of power, inputs and outputs. They were single channel devices. The power supply used was an early type of switching power supply that is no longer manufactured. The isolation circuitry was basically the same as is currently used in all NUSI isolators and many of our other instrumentation devices. The actual isolation element, the Burr-Brown 3656 is identical to that used today. All devices manufactured then underwent dielectric withstand testing of 3000 Vdc and at 2500 Vac to ensure their readiness to isolate a potential fault. They also were 100% functional tested. The units were encapsulated with an epoxy and aluminum oxide based compound that made them impervious to virtually all environmental concerns and seismically were considered a "brick". They were qualified simply by their mounting constraints. Internal heating was not a concern as the potting compound used had a very high thermal conductivity. Outputs and power were fused on the top surface of the aluminum chassis. Span and zero adjustments were also mounted there. The device is simple internally and externally. It has many years of reliable performance at several nuclear plants with little or no undue maintenance issues. The only know life issue is the power supplies used (then and now) have aluminum electrolytic capacitors with know life characteristics of about twenty years. Pots should not be adjusted unless the unit is out of tolerance to reduce the wear and tear on them. If a typical maintenance cycle is used, the devices will easily achieve their twenty year life expectancy with no problems. The limited life characteristics will not affect their isolation specifications in any way. These devices had only limited surge protection circuitry (on the inputs) included. Outputs and power ports may be susceptible to damage from surges but will not pass this to the inputs.
NUS Instruments currently manufactures devices that are form, fit and function replacements for the SC993 series. These are the SCA101 devices in the SCA100 series of isolators. These devices differ from the SC993 in the power supply used and that the chassis is 1/16' deeper than the older versions. These devices have surge suppression circuitry and have been surge tested on all ports. Fault testing and other isolation parameter testing has been completed on these devices. All other parameters, including the circuitry and elements used do not differ from the SC993 series.
Computed By: Date: CAROLINA POWER & LIGHT COMPANY RNP-lINSTi1043 Checked By: Date: CALCULATION SHEET Pg.2 of 2 Rev: 5 Project No.: I ATTACHMENT E File:
Project
Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation Series 800 devices were manufactured by us under the names Haliburton NUS, Haliburton NUS Environmental Corp., NUS Corp. and NUS Instruments. They are still in production. These devices include FCA, OCA and FIA versions with series designations 800 and 801. The only differences are the number of channels loaded, test jack size and LED power indicator colors. These devices all use modern switching power supplies in varying numbers dependent upon the output ranges and isolator types. FIA isolators have a separate power supply for each channel to give the outputs isolated commons. The circuit is operationally the same as earlier types and the actual isolation element is still the Burr-Brown 3656. These devices have undergone complete isolation type testing for dielectric withstand of 3000 Vdc and 1000 Vac, and most production units are tested to these values. The devices under went fault type testing to 480 Vac and 140 Vdc applied to all ports in the FIA800 series. Shorts, opens and inter-channel effects have also all been type tested. The devices have also been tested for surge withstand using the waveform specified in IEEE 472. All production units are 100% functionally tested prior to shipment. The chassis and electronics have been seismically proof tested for operation before, during and after the defined DBE with no anomalies. These devices use an aluminum chassis that is intended for rack mounting. The internals are accessible and passive air flow through the chassis removes internally generated heat. Outputs are fused on the rear and power is fused on the front of the devices. Span and zero adjustments are located on the front plate of the devices. These devices have the same life characteristics in the power supplies used but since they are not potted, the power supplies may be replaced allowing for the isolators to have 40 year life expectancies.
All devices are manufactured using a 10CFR50 appendix B quality assurance program and are provided with 10CFR part 21 traceability as basic components.
J.E. Siedelmann, P.E.
Sr. Design Engineer NUS Instruments, Inc.
Phone: (208) 524-9246 Fax: (208) 524-9238 jsiedelmann~scientech.com 440 W. Broadway, Idaho Falls Idaho 83402-3638
Computed By: Date: Calculation ID:
CARONA POWER & LIGHT COMPANY RNP-IIINST-1043 Checked By: Date: CALCULATION SHEET Pg. 1 of 1 RIv: 5 Project No.: ATTACHMENT F File:
Project
Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation ATTACHMENT F Comparator Historical Drift Study cM SE nM T aq." " IIID SC1
=l C"~AlA=~
SC
- 141 IC.949 VPC-14SA SIt143 Cal. Vt. Pavia. Cal. Vt. Davia. Cal. ft. lDvia. Cal. Vt. Pavia.
7/&1,/9 9/2*/S4 3/2/"
.001
.001 9/23/53 .000 5/2s/13
.001 .003 4/04/85 3/24/86 2/231t 2A02/1
.001 .002 .oo .001 5/13/37 9/23/37 4/3/3d7 227/37
.003 .002 .009 .003 4/13/81 9/30/53 12/21**3 2/5/38
.003 .004 11/20/89 .001 .009 7/4/3 V2/219 9/22100 3.LCAX II=i III 301.AL 4XRAAM LC 10" LC_1038 tC.IaA, LC-1035 Cal.Sc. Devis. Vavis. Dvrij. DeVLa. DPvei. Dayis. Davis. D"Is.
.000 .000 .001 .004 .000 .000 .OC .000
~/01/85
.001 .000 .001 .001 .001 .000 IVA IVA 4/13/35
.001 .001 .001 .000 .001 .000 IVA I/A 3/03/57
.001 .003 .001 .001 .0041 .001 3/A N/A 4/0,/a'
.000 .001 .002 .000 .002 .001 YA 3/A
.000 .000 _ _ _ _ .003 .003 4/04/10
- asxtrte.t Nalfimetis*
X/A 3kt Aval1ab1e tAxLmm devIati.. meted btwes the *1-r *a 1s-loft valua$ ecartdd on the
- awiable salibrstlea data shets was .009 Vdc.
This vale. Le arexmaatcei equal to 0.=.
Computed By: Date, CAROLINA POWER & LIGHT COMPANY Calculation ID:
Checked By: Date: CALCULATION SHEET Pg. 1 of 1 IRcv: 5 Project No.: ATTACHMENT G File:
Project
Title:
Calculation
Title:
Main Steam Pressure Uncertainty and Scaling Calculation ATTACHMENT G Indicator Specifications mosm _ _U
- T3Od~Y. C. *T.~ ftnRo*OM Sent~~w ~ C ~~
TWE: 740.450,00*2 P&E~aOK £1 .S537 June 24, "l~
CAROLINA PGWrR & LIBHT P.0. DoN 155l Raleigh, MC 27602-1551 Attn: Robert Mann OHS 6th Floor
Dear Robert,
Per our conv sation the drift and T.C. for International Znstruwnts .odel 2520 are 12 of upon per year and
- 1 of span per degree C respectIvely. The accur-cy following a seismic event are per l1l Btandards for shock and vibration and ar-quoted as X of span. Understand that the assuaption is ^d-that the selsaic event reflects both shock and vibration.
Should you )Iave any further Inlormation, please do not he-l-lamleson Vice President cc: Keith tlacdawall
ATTACHMENT 2 Sheet 1 of 1 Record of Lead Review Design RNP-UINST-1043 Revision 5 The signature below of the Lead Reviewer records that:
- the review Indicated below has been performed by the Lead Reviewer,
- appropriate reviews were performed and errors/deficiencies (for all reviews performed) have been resolved and these records are included in the design package;
- the review was performed Inaccordance with EGR-NGGC-0003.
E Design Verification Review D Engineering Review E Owner's Review D Design Review El Alternate Calculation El Qualification Testing a Special Engineering Review El YES 0 N/A Other Records are attached.
Frank Modlin/ ,Mai. Y)1 Electrical 08/13/02 Lead Reviewer (print/sign) Discipline Date Item Deficiency Resolution No. Rslto No comments FORM EGR-NGGC-0003-2-5 This form is a QA Record when completed and Included with a completed design package. Owner's Reviews may be processed as stand alone QA records when Owner's Review is completed.
I EGR-NGGC-0003 I Rev 8 1 _