ML20199K711
| ML20199K711 | |
| Person / Time | |
|---|---|
| Site: | LaSalle  |
| Issue date: | 11/19/1997 |
| From: | Gulati D, Ramiro N, Ripp P COMMONWEALTH EDISON CO. |
| To: | |
| Shared Package | |
| ML20199K523 | List: |
| References | |
| CON-10244-013, CON-10244-13 L-001420, L-001420-R01, L-1420, L-1420-R1, NUDOCS 9712010189 | |
| Download: ML20199K711 (41) | |
Text
- - _ . _ - . - . - . - . . _ - . - . - . . . _ . . . . . . - . - . . - . . - . - -
1 l
O l l
b i
ATTACHMENT l CALCULATION NO. L-001420, Rev.1, Dated November 19,199't
! UNIT 1 RWCU ROOM SETPOINT MARGIN ANALYSIS AND LOOP ACCURACY lO (Note that the " Mezzanine Area" as referred to in the attached calculations is the !
same as the holdup pipe area for RWCU) m=$mn e
mm en -
't W ,
l
Exhibit C NEP 12 02 O- '
Revision 4 page 1 cf 2 COMMONWEALTH EDISON COMPANY CALCULATION TITLE PAGE N,ULA110N NOo L-OO1420 PAGE NO.: 1 O SAFETY RELATED D REGULATORY RELATED C NON SAFETY RELATED CALCULATION TITLE.. Unit 1 RWCU Room Setpoint Marain Analysis and Loop Accuracy 3TATION/UlIT LaSa';e/ Unit 1 SYSTEM ABBREVIATION: E31 EDUPMENTTJD.: a ami See Section 1 2.1 & 1.2.2 PROJECT NO 16244 013 MC T STATUS 7ppr6 vet- VA SERIMY6WC ARDTNd----~~~6A'TE~~~-------~~~
~
PREPARE 68Y: P J. Ripp/ C H 9Jg. DATE: n/aa./97 REVISION
SUMMARY
The calculation was revised to incorporate station comments. Section 2.2.2 was revised to add discussion of thermocouple location. Description of M&TE maintenance was revised in q Section 2.6. Sections 3.1 and 6.2.1.2 were revised to incorporate digital thermometer M&TE errors. An assumption was added in Section 3.5 to document an unverified assumption related to thermocouple location. Section 4.6 was revised to clanfy reference junction errors.
Section 6.1.1.5,6.1.4 2,6.15.4,6 2.3.9, and 6.2.4.9 were revised to clanfy negligible errors.
Sections 6.2.1.0,6 2.2,6.3. 6.4.1,0.5.1 and 6.6 were revised to reformat and incorporate modified margins. Section 6.2.3.11 and 6.2.4.11 were revised to add reference section.
Sections 6.2.1.6,6.2.2, and 6.3 through 7 were revised to update numbers related to changes in va!ues. Section 7 was revised to refer to the unvenfied assumption in Section 3.5.
ELECTRONIC CALCtJLATION DATA FILES REVISED.
(Name ext / size /date/ hour: min /venfication method / remarks)
Revised or added the following sections and pages: Sections 2.2.2 & 2.6, page 5; Section 3.1 & 3.5 pagn 6 Section 4.6, page 8: Section 6.1.1.5, page 16; Section 6.1.4.2, page 18, Section 6.1.5.4, page 19; Section 6.2.1.2, pages 20 22; Section 6.2.1.6 & 6.2.2, page 24; Section 6.2.3.9 & 6.2.3.11, page 26; Section 6.2.4.9 & 6.2.4.11, page 28: Section 6.3, pages 29-30, Section 6.4; pages 30-33; Section 6.5, pages 33-35; Section 6.6, pages 36-38; and Section 7, page 39.
DO ANY ASSUMPTIONS IN THIS CALCULATION REQUIRE LATER VERIFICATION YESSNOC (Refer to Reference 5.6.5 which includes unvenfied assumptions and Assumptions 3.2,3.3,3.4 and 3.5)
TiEVIEWED DE D S Gulatil b ra i n d L N p - DATE: u -93L . cn
--../
REVIEW METHOD: Detailed Review of Revisions COMMENTS (C, NC OR Cl): NC
._/
6 APPROVEDWBY: A BarasalL##NAw , DATE: u-!L-V7
Exhibit C NEP 12 02 Revision 4 O. '
page 2 of 2 COMMONWEALTH EDISON COMPANY CALCULATION REVISION PAGE CALCULATION NO.: L 001420 PAGE NO.:2 REV: O STATUS: Approved QA SERIAL NO. OR CHRON NO. DATE:
PREPARED BY: N. k Ramiro/P J Rico DATE: 11/07/97.11/10/97 TEVISION
SUMMARY
Original issue l
EEECTRD7EC CALCULATION DATA FILES REVIEED.
(Name ext / size /date/ hour. min /venfication method / remarks)
DO ANY ASSUMPTIONS IN THIS CALCULATION REOUIRE LATER VERIFICATION YESS NOO (Refer to Reference 5.6.5 which includes unvenfied assumptions and Assumptions 3.2,3.3, and 3.4)
REVIEWED BY: D S Gulatil DATE: 11/10/97 REVIEW METHOD: Detailed Review COMMENTS (C, NC OR Cl): NC APPROVED BY: W.A Barasa DATE: 11/10/97
Exhibit D NEP-12 02 Revision 4
. COMMONWEALTH EDISON COMPANY O. CALCULATION TABLE OF CONTENTS CALCULATION NO. L-001420 PROJECT NO.10244-013 PAGE NO. 3 DESCRIPTION PAGE NO. SUB PACE NO.
TITLE PAGE 1 REVISION SUhth1 ARY 2 TAULE OF CONTENTS 3 PURPOSE / OBJECTIVE 4 METiiODOLOGY AND ACCEPTANCE CRITERIA 4 ASSUh1PTIONS AND LlhilTATIONS 6 l l
' JESIGN INPUT 7 REFERENCES 13 CALCULATIONS 16 SUNih1ARY AND CONCLUSIONS 39 ATTACllh1ENT NONE l
REVISION NO. O i
O l
Ethibit E NEP.12 02 R; vision 4 COMViONWEALTH EDISON COMPANY l
N CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO. 4 I
U
- 1. PURPOSE / OBJECTIVE 1.1 The purpose of this calculation is to determino for the instrument loops that initiate inboard and Outboard Logic channel tnp upon the detection of high differential and high ambient temperature in RWCU Pump Rooms, Heat Exchanger Rooms, Mezzanine Area, and F/D Valve Room the following-1.1.1 A new calibration allowable valut. for each switch.
1.1.2 New calibration isolation and alarm setpoints for each switch.
1.. This calculation is valid under normal and accident conditions and allows for all normal operating and accident errors, thus ensuring Tech spec compliance for the following:
1.2.1 Differential Temperature Instruments:
RWCU Roorn Switch ,
lnlet TE Outlet TE Pump B 1E31 N600A, B 1E31 N001A, B 1E31 N002A, B Pump Valve 1E31 N600C, D 1E31 N001C D 1E31 N0020, D Pump A 1E31 N600E, F 1531 N001E, F 1E31 N002E, F Heat Exchanger A 1E31 N6000, H 1E31 N001G, H 1E31 N002G, H Heat Exchanger B 1E31 N600), K 1E31 N001), K 1E31-N002), K Mezzanine Area 1E31 N621A,8 1E31 N045A,B 1E31 N046A,B
' F/ D/ Valve Room 1E31 N623A.B 1E31 N048A,8 1E31 N049A,B 1.2.2 Ambient Temperature Instruments:
RWCU Room Ewitch Ambient TE PumpB 1E31 N?OiA, B 1E31 N003A, B Pump Valve 1E31 N601C D 1E31 N003C, D Pump A 1E31 NG01E, F 1E31 N003E, F Heat Exchanger A 1E31 N601G, H 1E31 N003G, H Heat Exchanger B 1E31 N601J, K 1E31 N003), K Mezzanine Area 1E31 N620A,B 1E31 N047A,B F/ D Valve Room 1E31 N622A,B 1E31-N050A,B 1.3 This calculation is to be used as an input to or may affect the following procedures:
LIS RT 102A LIS-RT-302A LIS RT-1028 LIS-RT-302B 1,4 This calculation is based on a plant configuration that has been modified by DCP 9700208.
- 2. METHODOLOGY AND ACCEPTANCE CRITERIA l
2,1 The methodoiogy used for this calculation is based on TID-E/l&C-10, " Analysis of instrument
' Q kJ Channel Setpoint Error and instrument Loop Accuracy", Rev. 0 (Reference 5.1.2) and TID-REVISION No. O i
1 Exhibit E NEP.1242 Cevision 4 COMMONWEALTH EDISON COMPANY 1 1
7 CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 5 l (O
E/l&C 20,
- Basis For Analysis of Instrument Channel Setpoint Error and instrument Loop Accuracy", Rev. 0 (Reference 5.1.3).
2.2 The evaluation of errors used to determine the " Total Error"(TE)is consistent with the above methodology with following exceptions:
2.2.1 The calibration tulerance is assumed to desenbe the limits of the as left corrponent outputs.
Frt a random error, this corresponds to 100% of the population and can be statistically represented by a three sigma (30) value. Per References 5.1.2 and 5.1.3 the " Setting Tolerance" (ST) is defined as a random error which is due to the procedural allowances given to the technician performing the calibration. For this calculation:
ST = Calibration Tolerance / 3 2.2.2 These loops measure the temperature process directly with thermocouples. There are no analog to process conversions other then temperatuie to emf. Per assumption 3.5, the locations of the thermocouples do not introduce a process error. Therefore, there are no process errors other th an thermocouple accuracter. to include in the determination of TE normal (ten) or TE accident (tea).
2.2.3 The Drift Error term (oD) will be defined as a random,2o term as stated in Comed Memo DG97-001088, dated August 25,1997 (Reference 5.1.4).
D (V 2.3 This methodology will use a 2e enteria as the probability and confidence level for instrumentation error and uncertainty, except for the alarm setpoint as stated in Section 2.9.
The 2a entena corresponds to a 95% confidence level. Published instrument manufacturers specifications are considered to be based on sufficiently large samples so that the probability and confidence levels meet the 2e entena. If a manufacturer provides different information, this information must be converted to a 2e value.
2.4 Temperature, humidity and pressure errrs, when available from the manufacturer, are to be evaluated with respect to the conditions specified in the station EQ Zones. If not provided, an evaluation must be made to ensure that the environmental conditions are bounded by the manufacturers specified operationallimits, if the environmental conditions are bounded, these error effects are considered to be included in the manufacturers reference accuracy.
2.5 The AT signal monitor / switch subtracts room inlet temperature from outlet temperature. The two thermocouple errors are independent and random. The errors propagated to monitor are therefore combined by square root sum of squares. (Reference 5.1.2 p.101, Exhibit H.2, and Reference 5.1.3, pp. 42-43 Sectica 4.2.1.a.)
2.6 The calibration standards ust.d to maintain and calibrate the M&TE listed in Table 6 are maintained to required manufacturers recommendations. As such, the calibcation standard accuracy error of M&TE is negligible with respect to the other error terms.
p) i L.J REVISION No. 1
EaMhst E NEP.1242 '
RwWon 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 6 2.7 Radiation induced errors associated with normal environments have been incorporated when provided by the manufacturer. If the manufacturer does not provide these error effects, they are considered to be small and capable of being adjusted out during calibration and included within the instrument dnft related errors.
2.8 Acceptance Criteria Not applicable for this calculation 2.0 Reference 5.1.5 was issued after this calculation was started. Since Reference 5.1.5 is not a change in the Comed methodology, Reference 5.1.2 and 5.1.3 will be used as the basis for i this calculation except wf eere noted:
- a. Per Appendix D of Reference 5.1.5, the alarm setpoint is a Level 2 function and the random errors in calculating the starm setpoir.t will be considered at the 1o level of confidence.
- 3. ASSUMPTIONS AND LIMITATIONS 3.1 Evaluation of M&TE errors for the digital multimeter is based on the as4umption that the test equipment listed in Table 6 is used. The M&TE equipment used to measure reference junction temperature at the temperature switch monitors are assumed to introduce a 2e error
, of less than or equal to +/ 2'F. This is considered conservative because it is reasonably achievable requirement. The use of less accurate test equipment 'm'.atimeters or thermometers) will require evaluation of the effect on this calculation's results.
3.2 It is assumed that the LaSalle DCP 9700532 will not re-label, remove, or rewire the temperature leak detection instrument loops for the RWCU Pump and Pump Valve Rooms.
The only change will be the re naming of the rooms per DCP 9700208.
This is an unverified assumption.
3.3 It is assumed that .he LaSalle DCP 9700532 will use the same modelinstruments in the temperature leak cetection loops for the RWCU Mezzanine Area and the RWCU F/D Valve Room as is used for the RWCU Pump Rooms and that the instruments will be numbered es listed in Section 1.2.1 and 1.2.2. In addition, DCP 9700532 will modify the trip and alarm circuits to include the currently abandoned instruments that are included in this calculation.
This is an unvenflud assumption.
3.4 lt is assumed that the instruments in the RWCU Pump, Pump Valve, and F/D Valve Rooms and the RWCU Mezzanine Area will be calibrated in the same ma,ner as the instruments in the RWCU Heat Exchanger Rooms.
This is an unverified assumption.
3.5 The thermocouples are located in the rooms in accordance with the determination of the analyticallimits per Reference 5.6.5. Therefore, the thermocouples directly sense temperature at the same location as the analytically determined temperatures and there are no process errors associated with the location of the thermocouples.
O' This is an unverified assumption.
l REVISION No. 1 l
i
\..-, - . . .
. . . , - - _ , . , , - . . , - . _ _ - . _ ~ - ~ . _ _ . , - . . . . _ , . _ . . , . . - ~ .-
Echtbt' E I NEF12C2
'tevmon 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO. 7
(]
- 4. DESIGN INPUT 4.1 Instrument Channel Configuration and Description Each RWCU Pump Room and Heat Exchanger Room. the RWCU Pump Valve Room, the RWCU Mezzanine Area, and the RWCU F/D Valve Room have two differential temperature (AT) instrument loops and two ambient temperature loops. Each AT loop consists of on's inlet Type *E" thermocouple, one outlet Type 'E" thermocouple, and one signal monitor /
switch unit. The AT signal monitor measures the difference between area input and output air temperature and has two adjustable switches. Each ambient temperature loop consists of one Type *E" thermocouple ar.d one signal monite r / switch unit. The ambient temperature signal monitor measures the ambient air temperature and has two adjustable switches.
4.2 Thermocouple extension wires are identical in conductor types to the thermocouple and thermocouple head terminals (Reference 5.3 4. 5.3.5, 5.3.6, and 5.5.5), and therefore there is no EMF drop or rise at the point of connection to the thermocouple. Per Reference 5.5.7, page 4, the Operating influence (oOI) of the Reference Junction Compensation willintroduce an error of 13'F over the range of normal operating temperaturos.
4.3 Temperature, radiation and humidity errors, when available from the manufacturer, were O
V evaluated with respect to the normal operating conditions specified in the LaSalle EC Zones.
The EQ Zone requirements for each instrument were obtained from the LaSalle County Station EQ Zone maps, per Reference 5.4.1.
4.4 Per Reference 5.5.1, the default drift valua for the Riley Panatarm Model 86 Temperature Monitor is 12% of Span per 18 month period.
4.5 For a Type E thermocouple, the output Spans are 5.411 mV for O'F to 150'F (AT) and 11.115 mV for 50'F to 350'F (Ambient). This is based on a reference junction temperature of 32'F and References 5.2.1 and 5.2.2. The actual thermocouple output will vary by a constant equal to the EMF developed between 32*F and the actual temperature of the reference junctions because the installed reference jt nctions are not maintained at 32'F.
The Spans of 5.411 mV and 11.115 mV remain the same and are used in this calculation
~
because the thermocouple output vanes by a constant.
n l REVISION No 0 l
Eshest E NEP 1242 R:vis6on 4 COMMONWEALTH EDISON COMPANY l')
c CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 8 4.6 The maximum possible line resistance error from the loop calibration must be determined.
Per References 5 21 and 5.2.2, the highest millivolt value used in the data t Ne is 11.585 mV, corresponding to 347'F. Por Attachment C of Reference 5.2.1 and 5.2.2, since the highest temperature possible in the RWCU Pump area is 131*F, this value is conservative.
Per Reference 5.5.7, page 3, the input impedance used in the circuitry is 250 KO. Using Ohm's Law and solving for Current (1):
I = V / R = 11.585 mV / 250 KO = 0.04634 A Per Reference 5f. 7, the maximum allowable line resistance is 5000 for temperature monitor
/ switch unit The Reference Accuracy for the Fluke 8500A Ohmmeter secti'.,n is 0.006% of Reading for the 1,0000 range (Reference 5 5.6). This leads to a maximum resistance error of:
eLR = 20.006%
- 5000
- 0.04634 A
= 0.0013902 pV This error is negligible. The decade box used in the calibration procedure is a physical parameter that is measured by the multimeter. Therefore, the only errors associated with it are governed by the digital multimeter and as shown above, this error is negligible.
4.7 Per Reference 5.6.5, the analytical limits for the subject temperature loops are:
Leakage AT T Loop _
GPM 'F 'F RWCU Normal 0 18.0 122.0 Pump Alarm 5 32.4 136.4 Rooms isolation 25 94.0 212.0 RWCU Normal 0 17.6 121.6 HX Alarm 5 24.6 128.6 Rooms isolation 25 41.8 159.8 RWCU Normal 0 17.6 121.6 Pump Alarm 5 41.0 145.0 Valve Isolation 25 94 0 212.0 RWCU Normal 0 17.3 121.3 Mezzanine Alarm 5 40,8 144.8 Area Isolation 25 94.0 212.0 RWCU Normal 0 19.6 123.6 F/D Valve Alarm 5 44.5 148.5 Room Isolation 25 94 0 212.0 Table 1 f3 O
, REVISION No. 1 l
l l . - - .
Exhibit E
_ NEP 1242 R3 vision 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001420 PROJECT NO. 10244-013 l PAGE NO. 9 4.8 DIFFERENTIAL TEMPERATURE LOOPS - MODULES 1 a 2 4.3.1 LOOP SKETCHES [5.3.2, 5.3.7) 1E31 N001A I AIR I INLET SW1 to LOGIC 1E 14224AC
- T MONITOR AT = Tout - Tm g ,
+ SW2 to ANNUNCIATOR
[TE 1E31 N600A 1E 1-4224AM l AIR f 1E31 N002A Figure 1 TYPICAL AIR AT LOOP (See Table 5)
SW1 to LOGIC
^
TEMPERATURE AMBIENT MONITOR l
- k SWITCHES .
SW2 to ANNUNCIA TOR 1E31 N003A 1E-1-4224AM 1E31-N601 A Figure 2 TYP'0AL AMDIENT AIR TEMPERATURE LOOP (See Table 5) 1 REVISION No. O L
1 '_ _ _ _ _ ----.---- - -. -.
_ .._...m _ . - . _ - . . . _ . . .
I Exhitut E -
-i idP.1242 .I R:vtion 4 - l COMMONWEALTH EDISON COMPANY CALCULATION NO.- L.001420'- PROJECT NO. 10244.013 PAGE No.10 4.8.2 LOOP ELEMENT DATA Module 1
- Module 2 Thermocouples Thermocoupee Mondor ,
[561; (561.5571 Manufacturer Pyco Ruey Model number 102-9039-11 6 Model 86
~
- Type Type 'E* Chromet . Const T emp-Matic Tomp Limas input 32 to 600*F 32 to 122*F (N> mat) [5571 '
11% Span I Ref Accuracy 12*F f5 5 21 15571-Repeatabetv N/A 20 */5% Span (5571 Conformdy N/A to 65% Span (557]
Hysterests N/A to 1% Span 15571 Line Voltage f.*ect . N/A 20 5% Span wer Range of Normal Operating Voltages f5 5 71 Normat Operating Voltage N/A 120 VAC t 10% [5 5 ig Maximum Loop Resistance N/A 500 0 15571 Input Impedance N/A 250142 15571 Table 2 4,8.3 CAllBRATION PROCEDURE DATA, DIFFERENTIAL TEMPERATURE Thecimcouples Temperature Monitors
. (See Table 5) (See Table 5)
' is21,522 341 f2.2.1,5 21 5 2.2. 3 41 Cahbration intenrat N/A 3 months input Range - O to 150 * (%T) O to 5 411 mVdc s input Span 150*F (AT] 5 411 mVoc Oitput Rmnge O to 5 411 mVdc 0 to 150*F Output Span 5 411 mVoc 150*F Setting Tolerance N/A 11% Span 11 5*F >
Tabh 3 4.8.4 CALIBRATION PROCEDURE DATA, AMBIENT TEMPERATURE l
- l. Tliermocouples Temperature Mim:a (See Tab'e b;
( (See Tobie 5)
IS 21. 5 2 2 3 4 ) [2.21. 5 21. Q2, 3 41 Cahbration Interval N/A 3 montns [52.1,522.341 Input Range 50 to 350*F 0 591 to 11706 mVdc enput Span 300*F 11.115 mVdc Output Range 0 591 to 11706 mVdc 50 to 350*F Output Span 11 115 mVdc 300*F Settirig Tolerance N/A 11% Span
+3*F L Table 4 l
f.
k REVISION NO. 0 -
v - - _ _ - _ _
-- - .. ~.- -_ . . - . . . . _ - - _ . - . . - . . _ . --. -.....- -.. - -. .. -,
ExhMt E -
NEP 12 02 R2vdon 4 COMMONWEALTH EDISON COMPANY
, CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO.11 1 1
4,8. 5 . - INSTRUMENT AREA, FROCEDURE & EQ ZONE llST [3.2, 3.3, 3.4) i l
RWCU Room Procedure Sennce Functon Instrument No, EQ Zona '
Pump B [3 4) Inlet At Temp Thermocouple 1E31 NV01 A HSD Outlet #3 Temp TE 1E31 N002A H5D Differential At Temp Mondor i Switch 1E31 N600A C1A PumpB [3 dj . Inlet At Temp TE 1E31 N001B H50 Outlet Ar Temp TE 1E31 N002B H50 Differential Air Temp Mon: tor Swdch 1E31 N6008 CIA PumpVaNo- [3 dj lilet At Temp TE 1 E31-N001C H50 Outlet At Temp . TE 1E31 N002C H50 Differential Ar Temp Mondo' / Switch 1 E31-N600C CIA Pump VaNo [3 4) inlet Air Tenp Tti 1E31 N001D HSD Outlet At Temp 1d IE31 N002D H50 Differential Air Temp Mon for / Switch 1 E31-N6000 CIA Pump A n4) inlet An Temp TE 1E31 N001E H50
'. *=* Air Temp TE 1E31 N002E H50 Differential Ar Temp Mondor / Switch IE31 N600E CIA Pump A [3 4) inlet At Temp TE 1E31 N001F HSD Outlet Ar Temp TE 1E31-N002F HSD Differential Ar Temp f/ondor I Swetch 1E31 N600F CIA Heat LIS-RT 102A Inlet Ar Temp TE 1E31 N001G HSD Exchanger A LIS-RT.J02A Outlet At Temp TE 1E31 N002G HSD Differentsal Air Temo Mondor / Swdch 1 E31-N600G CIA Heat LIS-RT 1028 inlet Ar Temp TE 1E31 N001H H50 g Exchanger A LIS-RT 3028 Outlet Ar Temp TE 1E31 N002H HSD Differential Ar Temp Mondor i Switch 1 E31-N600H C1A Usat LIS-RT 102A Inlet At Temp TE 1E31 N001J HSD Exchanger B LIS RT 302A Outet Air Temp TE 1E31 N002J H50 Differential Ar Temp Mondor / Switch 1E31 N600J C1A _
Heat LIS RT-1028 Inlet Ar Temp TE 1E31 N001K H50 Exchanger B LIS-RT 302B Outlet Air Temp TE 1E31 N002K H50 Differential At Temp lb: tor / Switch 1E31 N600K CIA Mezzanine [3 4) Inlet Ar Temp . IE31 N045A,8 H5D Outlet At Temp TE 1E31 N046A,B HSD Differential Ar Temp Mondor / Switch 1E31-N621 A B C1A FID/ Vane [3 4) inlet At iemp TE 1E31 N048A,B HSD 3- Outlet At Temp TE 1E31 N049A.B HSD Differential Air Temo Mondo * / Swdch 1E31 N623 A B CIA Pump b [3 4) Amt>ent Ar Temp -TE 1E31 NJ03A H5D Mondor / Switp 1E31 N601 A CfA Pump B [3 4) Ambeent Ar Temp Td 1E31 N003B HSD Mor itor / Smtch 1E31-N601B CIA Pump Vane [3 4) Amtxent At Temp 'T'E 1E31 N003C HSD i Mor dor / Ewitch 1 E31-N601C CIA Pump vane [3 dj Ambient Ar Temp TE ' 1E31 N003D HSD Ntor / Switch 1 E31-N6010 CIA Pump A [3 4) Ambient Ar Temp . ti 1E31 N003E HSD Monitor / Switch 1 E31-N601 E CIA Pump A [3 4) Ambeent Ar Temp TE 1E31 N003F HSD Mondor / Switch 1E31-N601F CIA l-Table 5 p
l v
REVISION ND. O i
,a = _ . _ , .,..y,. my,. v._, . . . , . . _. _ , . , , - ,
Eshibn E NEP.1242 kvis6orl d
.vMMONW5ALTH EDISON COMPANY CALCULATION NO. L-001420 ~ PROJECT NO. 10244-013 PAGE NO.12 ,
I?WCU Room Procedure Service Function Instrument No. EQ Zone Heat LIS RT 102A Amtnent Ar Temp TE 1E31.N003G HSD Enchanger A Mondor / Switch 1E31 N601G CIA Heat LI5 RT 1020 Amtnent Ar Temp TE 1 E31-N003H HSD Enchanger A Monitor / Swach 1 E 31.N601 H CIA Heat Lia RT 102A Amtnent Ar Temp -TE 1E31 N003J H50 Enchanger B Monitor i Switch 1 E31.N601J _ CI A Heat LIS RT.102B Ambient Ar Temp TE 1E31.N003K H5D Exchanger B Monnor / Switch 1 E31.N601 K CIA Me22arvne {3 4) Amtunent Ar Temp TE 1E31 N047A.B H50 Monitor / switen 1E31 N620A B C1A F/ D/ Vatv0 [3 4) Amtner.t Ar Temp TE 1E31 N050A.B H50 Monitor / Switch 1E31 N622A B C1A Table 5 (centinued) ,
4.6.6 CAllBRATION INSTRUMENT DATA DMM
[5621 Manufacturer / Modet Number Fluke / 8500A (51/2 dget resolution) 1521,'i22,341
- 4. strument Ranoe O to 100 mVdc Reference Accuracy 0 005% Reading + 8 Digda f2a]
ResoMion 0 001 mVoc g Temperature Effect 1(0 003% Reading + 0.5 Ogit)/1 S*F for Temps. 32 to 64 4*F and 82.4 to 122*F; O for Temps 64 4 to 82 4*F f2n]
Table 6 4.8.7 LOCAL SERVICE ENVIRONMENTS (5.4.1)
Ihermocouples Temperature Mondors
- EQ Zone HSD C1A Location RX Bido Control Room Temperature Ra@e 123 6*F Normal Max (5651 72*F to 74*F Pressure O4 we O to +0 25 *we Humedity 16 to 25% RH 35 to 45% RH Radiation 5 x 10' RAD Maximum 1 x 10' RAD (gamma)
Integrated Dose Maxtmum Integrated Dose Sersmic Required Required Table 7 O
REVISION No. O
~
- - n . . - ~ , - ~ - . , , - . . . . . . , ,
Eahlbit E .
NEP.1M2 AfvisiO4 4
~ COMMONWEALTH EDISON COMPANY CALCULATION NO. L 001420 PROJ8iCT NO. 10244-013- PAGE NO.- 13
- 5. REFERENCES - 4 5.1 = I- METHODOLOGY -
5.t i ' . ANSI /ISA S67.04- 94, 'Setpoints for Nuclear Safety Related Instrumentation" 5.1.2 : TID E/l&C 10, " Analysis of Instrument Channel Setpoir t Error and Instrume.nt Loop
- Accuracy", Rev. O. dated April 6,1992 5.1.3 TID-E/l&C-20,
- Basis for Analysis of instrument Channel Setpoint Error and Instrument Loop '
Accuracy", Rev. O, dated Apnl 6,1992 5.1.4 Comed Memo No. DG97 001088, " Reclassification of Drift Error Terms in the Cortdd Setpoint Methodology" dated August 25,1997 5.1.5 NES EIC-20.04, " Analysis of instrument Channel Sotpoint Error and Instrument Loop Accuracy," Revision 0 5.2 ' PROCEDURES 5.2.1 LaSalle Station Surveillance Procedure LIS-RT 102A, Unit 1 RCWU Pump Rooms Ambient and Differential Temperature Outboard Icolation Instrument Channel A Quarterly Calibration,
- O Rev.2 V
5.2.2 LaSalle Station Surveillance Procedure LIS-RT-102B, Unit 1 RCWU Pump Rooms Ambient and Differential Temperature Outboard Isolation Instrument Channel D Quarterly Calibration, Rev. 2 5.2.3 NEP 12-02, " Preparation. Review, and Approval of Calculatinns," Rev. 4 5.3 LASALLE STATION DRAWINGS .
5.3.1 M-155, Sheet 2, P&lD Lead Detectio. . ), Rev. H 5.3.2 - 1E 1-4224AC Schematic Diagram, Leak Detection System LD (E31) Pt. 3, Rev. L 5 3.3 - 1E-1-4224AD Schematic Diagram, Leak Detection System LD (E31) PT. 4,' Rev. M 5.3.4 1E-1-4224AE Schematic Diagram, Leak Detection System LD (E31) PT. 5, Rev. D 5.3.5 - 1E-1-4224AF Schamatic Diagram, Leak Detection System LD (E31) PT. 6, Rev. D 5.3.6 1E-1-4224AG Schematic Diagram, Reactor Water Cleanup System LD (E31) PT. 7, Rev. D 5.3.7 1E-1-4224AM Schematic Diagram, Leak Detection System LD (E31) PT.12, Rev. N 5.3.8 1E-1+224AN- Schematic Diagram, Leak Detection System LD (E31) PT.13, Rev. O REVISION No; O .
Exhibit E NEP.1242 R: vision 4 COMMONWEALTH EDISON COMPANY G
\J CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO.14 519 1E 14228AK Schematic Diagram, Reactor Water Cleanup System RT (G33) PT.10, Rev. H 5 3.10 1E 14232AH Schematic Diagram, Primary Containment & Reactor Vesselisolation System PC (821H) PT. 8, Rev. G 5.3.11 M 1562, Reactor & Aux. Bldg. Equip. Fdn. Arrgt's. El 768'-0" & 761' 0", Rev. B.
5.4 FNVIRONMENTAL PARAMETERS 5.4.1 LaSalle Station UFSAR Table 311 16, Rev. 6, dated April,1990 and UFSAR Table 3.1124, Rev. O, cated April,1984.
5.4.2 CECO Environmental Qualification Equipment identification Binder (EQ LS077), LaSalle Units 1 & 2, Project No. 6548/49-00, CQD File No. 017141, Rev. 05, Approval date September 12,1991 5.4.3 Acton Environmental Testing Corporation Test Report No. 16436-82N, " Nuclear Qualification Testing of Temperature Measurement Devices per IEEE Standards 323-1974 and 344-1975", Rev. 3, dated January 31,1984 5 4,4 LaSalle Statir>n UFSAR, Section 3.11.5, " Estimated Chemical and Radiation Environment",
page 3.11-13, Rev. O, dated April,1984 5.4.5 COD-000267, Seismic Qualification Document for 1E31-N001 A, B, C, D, E, F, G, H, J, K and 1E31-N002A, B, C, D, E, F, G, H, J. K.
5.4 6 EMD-029043, Seismic Qualification Document for 1E31-N600A, B, C, D, E, F 3, H, J, K and 1E31-N601 A, B, C, D, E, F, G, H. J, K.
5.5 VENDOR PRODUCT INFORMATION 5.5.1 General Electric Letter, from K. Utsumi to D. Eagan (Comed), "PanAlarm. doc", dated January 17,1996 5.5.2 GE Jata Sheet Drawing No. 234A9117TD Sheet 2, " Leak Detection System Temperature Ele aents", Rev. 5, dated October 1,1974 5.5.3 GE Data Sheet Drawing No. 234A9317TD Sheet 12, " Leak Detection Systr.m Differential Temperature Switch", Rev. 6, dated Octo5er 1,1974 5.5.4 GE Data Sheet Drawing No. 234A9317TD Sheet 13, " Leak Detection System Temnwature Switch", Rev. 6, dated October 1,1974 5.5.5 GE Data Sheet Drawing No.145C3224, " Temperature Element", Rev. 2, dated March 22, 1974 5.5.6 Fluke 8500A Digital Multimeter Resistive Value Specification
{}
NJ REVISION No. O
. ._ ~. . . - .. - . . . - . . - . . . _ - . . - - . . . . - . - _ - - .
Exhibit E NEP.12 02 i nwwon 4 COMMONWEALTH EDISON COMPANY- -
I p
a.
CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE No.15
'I 5.5.7 Riley Company, instruction and Operating Manual, Model 86 Temp-Matic Thermocouple -
~
Monitor, Rev.1 5.6 - OTHER REFERENCES 5.6.1 Commonwealth Edison Company EWCS Equipment Data Records for the following instruments:
1E31 N001 A 1E31-N002A 1E31 N600A 1E31-N003A 1E31 N601 A 1E31 N001B 1E31 N002B 1E31 N60GB 1E31 N003B 1E31 N6018 ,
1E31 N001C 1E31 N002C 1E31-N600C 1E31-N003C 1E31-N601C 1E31-N001D - 1E31 N002D 1E31 N600D 1E31-N003D 1E31 N001D 1E31 N001E 1E31 N002E 1E31 N600E 1E31 N003E- 1E31 N631E 1E31 N001F 1E31-N002F 1E31-N600F 1E31-N003F 1E31-N601F 1E31 N001C 1E31-N002G 1E31 N600G 1E31-N003G 1E31-N6013 1E31 N001H 1E31 N002H 1E31-N600H 1E31-N003H 1E31-N601H 1E31 N001) 1E31 N002J 1E31-N600J 1E31-N003J 1E31 N601J 1E31 N001K 1E31-N002K 1E31 N600K 1E31-N003K 1E31 N601K New EPNs:
1E31 N045A 1E31-N047A 1E31 N049A 1E31 N620A 1E31 N622A 1E31-N0458 1E31 N0478 1E31 N049B 1E31 N620B 1E31-N622B 1E31 N046A 1E31 N048A 1E31 N050A 1E31-N621 A 1E31 N623A 1E31 N0468 1E31 N048B 1E31 N0508 1E31-N6218 1E31-N623B 5 S.2 Commonwealth Edison Company Calculation No. NED-I-EIC-0255, " Measurement & Test Equipment Accuracy Calculation for Use with CECO BWRs", Rev. O, CHRON #208597 5.6.3 Sargent & Lundy Report SL-4493, " Final Report on insulation Resistance and its Presumed Effects on Circuit Accuracy, LaSalle County Station", dLed October 12,1988 5.6.4 Sargent & Lundy Calculation CID-MISC-01, " Instrument Loop Evaluation for Parasitic Resistance *, Rev. O, dat:d February 3,1987 5.6.5 Comed Calculation No. L-001281,"RWCU Areas Temperature Response Due to High Energy RWCU Fluid Leakage", Revision 1, dated November 7,1997
~
O v
REVISION No. 0 l 1
ExhitWt E NEP.12 02 Revishn 4 COMMONWEALTH EDISON COMPANY. -
O' CALCULATION NO. L-001420 -
PROJECT NO. -10244-013 PAGE NO.16'
- 6. CALCULATIONS -
6.1 'iHERMOCOUPLE ERRORS (MODULE 1) 6.1.1 Random Errors, Normal Operating Conditions nin 6.1.1.1 The,mocouple Reference Accuracy Rain The thermocouple Reference Accuracy is 12*F (Section 4.8.2, Table 2). This a 2a value
- (Methodology 2,3).
Rain 2a = 2'F RA1ni, = 2*F / 2 -
= 11'F RA1n = 11*F 6.1.1.2 Thermocouple Calibration Error CAL 1 Per Station Procedures (References 5.2.1 and 5.2.2), the thermocouples are not calibrated.
Therefore, there is no calibration tolerance.
CAL 1 =0 6 C. 6.1.1.3 Thermocouple Setting Tolerance ST1 Per Station Proceduras (References 5.2.1 and 5.2.2), the thermocouples are not calibrated.
Therefore, there is no setting tolerance.
ST1 - =0 6.1.1.4 Random Input Errors o1in The therrnocouples are the first modu!es in the loop. Therefore, oiln =0 6.1.1.5 Drift Error odin Thermocouples are passive devices and are not subject to drift. Therefore, odin =0 f
- s REVISIOis No. 1
._-___:- -_-_a_- _- - - _ _ .
emwe. 4 NEP 12 02 ' l
~ R2 Vision 4 COMMONWEALTH EDISON CM1PANY l CALCULATION NO. L 001420 I PROJECT NO. 10244-013 PAGE' NO.17 :
6.1.1.6 . Operating influence of Reference Junction Compensation 0011 '
There is no rise or drop in emf across the thermocouple head terminals since the thermocouple extension wires are made of the same materials at the thermocouple itself.
However, there is an operating influence from reference junction compensation that results in an error 3*F [ Design input 4.2]. This a 2a value (Methodology 2.3),
o 0112. = 13*F 0011u = o011.2 / 2 z 13*F / 2 ,
= 11.5'F
, o 0 11 = 11.5'F 6.1.1.7 Thermocouple Random Error ein ein = 2[(RA1)* + (CAL 1)' + (ST1)' + (o1in): + (odin)' + (col 1)' }"'
= 1[ (1*F)' + (0)2 + (0)* + (0)' + (0)* + (1.5'F)* }"'
= 1[ 3.25 Ju .F = 11.8028'F
. 8.1.2 ain = 11.8028'F 6.1.3 Random Errors. Accident Cor.ditions o1a Thermocouple errors are not dependent upon environme. ital conditions per Reference 5.1.3, Section 4.1.1. Therefore, the random error determined for normal operating conditions is the same as the error under accident conditions.
, sia = c1n = 11,8028'F [6.1.2) 6.1.4 Non-Random Errors, Normal Operating Conditions Iain Thermocouples are passive devices that produce a millivolt signal proportional to temperature. As such, they are not affected by the following non-random effects.
Humidity Effects: eHin =0 Static Pressure Effects: ESP 1n =0 Ambient Pressure Effects: eP1n =0 Power Supply Effects: eVin =0 Seismic Effects: eSin =0 Radiation Effects: erin =0
, 6.1.4.1 Temperature Errors-eT1n Thermocouples are designed to exhibit a precise temperature effect that is used to davelop the input signal to the loop.L Since the thermocouples are designed to function at temperatures well above the system design temperature, there is no temperature other than the references accuracy error. Therefore,
. eTin =0
- REVISION No. 0:
- . . ~ .. . - - - . - . . - . . - . - - - - - - - - ._ _ - _ --.- -.
Exhit* E NEP.12 02 Revision 4 COMMONWEALTH EDISON COMPANY -
CALCULATION NO. L-001420 PROJECT NO. 10244-013- PAGE NO.18 6.1.4L2 Insulation Resistance Error elRin Per Reference 5.6.3l page 2 2, there are no terminal blocks.in.100% humidity areas.-
' References 5.6.3 and 5.6.4 state that insulation resistance error for thermocouples and thermocouple lead wires is negligible. Therefore, elRin =0 6.1.4.3 Non Random Input Errors eilnn The thermocouples are the first modules in the loop. Therefore, e1 inn =0 6 1.4.4 Non Random Error, Nor .t > Operating Conditions Iain Iein - = eH1n + ESP 1n + eP1n + eVin + eS1n + erin + eT1n + elR1n + e11nn
= 0 + 0 + 0 + 0 + 0 + 0 + 0 + G + 0 = 0*F Iain = 0*F 6.1.5 Non Random Errors,'A'ccident Conditions Ieia Thermocouples are passive devices that produce a millivolt signal proportional to temperature. As such, they are not affect by the following non-random effects.
V Humidity Effects: eH1a =0 Static Pressure Effects: ESP 1a = 0 Ambient Pressure Effects: ePia =0 Power Supply Effects: eVia =0 0.1.5.1 Seismic Effects eSia Seismic testing was performed on selected Pyco thermocouple models. Per Reference 5.4.3, the tested units demonstrated consistent calibration readings both prior to and following seismic tests, in addition, per Reference 5.4.5, the thermocouples are seismically qualified. Therefore, seismic error is negligible.
eSia =0 6.1.5.2 -Radiation Effects eRia There are no radiation error effects described the thermocouple manufacturer's specification.
Per Reference 5.4.3, the equipment qualification's radiation dose rate for instrument exposure was 0.80 < 10' rads per hour for 276.4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />. This resulted in a radiation dose of 2.2112
- 10' rads. Per Table 7, the accident condition for a 40 year dose is 5 + 10* rads. .
The qualification test exposure was greater than the accident dose. Therefore, radiation en'or is negligible.
eRia =0 O
REVISION No. 1' m.- - _. -
. .. - - _ . - ~ .- _ _ ._ ..- - . . . . - . . - . - - . - . .
ExNbuE NEP.1242 Revclo.14 COMMONWEALTH EDISON COMPANY CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO.19 6.1.5.3 Temperature Errors eTia Thermocouples are designed to exhibit a precise temperature effect that is used to develop the input signal to the loop. Since the thermocouples are designed to function at temperatures well 3bove the syvem design temperature, there is no temperature error other than the reference accuracy error. Therefore, eTia =0 6.1.5.4 Insule%n Resistance Error elRia Per Reference 5.6.3, page 2-2, there are no terminal blocks in 100% humidity areas.
References 5.6.3 and 514 state that insulation resistance error for thermocouples and thermocouple lead wires is negligible. Therefore, elR1a =0 6.1.5.5 Non-Random Input Errors e1lna The thermocouples are the first modules in the loop. Therefore, elina =0 6.15.6 Non Random Error, Accident Conditions Zeia Eela '=eH1a 4- ESP 1a + eP1a + eVia + eSia + eR1a + eTia + elR1a + e1ina l =0+0+0+0+0+0+0+0+0
= 0'F Iaia = 0'F 6.2 TEMPERATURE SWITCH ERRORS (MODULE 2) l The temperature switch has an arsalog input and a bistable output.
6.2.1 - Random Error, Normal Conditions c2n 6.2.1.1 Reference Accuracy RA2 j Reference Accuracy is the square root-sum-of squares of manufacturer's reference l accuracy, repeatability, hysteresis and conformity, all found in Table 2. The Spans are l 150*F for the differential temperature switches [ Table 3) and 300*F for the ambient temperature switches [ Table 4). These are 2e values [ Methodology 2.3).
RA2,2 = [(Ref Acc)2 + (Repeatability) + (Hysteresis)2 + (Conformity)')"'
= i[(1% Span)2 + (0.25% Span)2 + (0.1% Span)2 + (0.65% Span)2 juz
= [ 1.495 Ju2 % Span
= 1.2227 % Span O
REVISION Nc. 1 L
. - - . . . -.- .- . ~ . . . .. - . -. .-..- - - ~ - . - . . - . -- -
Eshildt E ~ !
NEP 12 02 Revision 4 .
- COMMONWEALTH EDISON COMPANY-i CALCULATION NOf L 001420 PROJECT NO.' -10244-013; PAGE NO. 20; '
o 6.2.1.1.11 Differential Temperature Switches
- RA26tro - = 1.2227%
- 150'F- -
(Table 3) ,
= 11.8341*F
- . RA2ario = RA2m,, / 2
= 11.8341*F / 2
= 10.9171*F RA2r 3 *io.9171*F .
6.2.1.1.2 Amb;ent Temperature Switches RA2rao = 1.2227%
- 300'F [ Table 4) ,
= 3.6681'F RA2ru - = RA2tz,, / 2 -
= i3.6681*F / 2
= 11.8341*F RA2r = 11.8341*F g 6.2.1.2 Calibration Error CAL 2
- The calibration procedure uses a digital thermometer and conversion table to determine
-M_.- the temperature compensated voltage setpoint. A test voltage is then applied to the switch
, 17 through a decade resistance box while measuring the voltage with the DMM iisted in Table
- 6. The decade box simulates thermocouple lead resistance. The value at which the switch L - contacts open is recorded and converted to an equivalent temperature (References 5.2.1 and 5.2.2). Note: temperature compensation is not used for ti e differential temperature switches. However, the errors associa;ed with the digital thermometer are included for conservatism.
1 6.2.1.2.1- Measurement & Test Equipment Error MTE2mm Fluke Model 8500A Reference Accuracy is the manufacturer's accuracy as a 2e value (Methodology 2.3]. The worst case reading is at the highest calibration input in either instrument loop
- (11.585 mVdc @ 347'F References 5.2.1 and 5.2.2).
RAro - = 1(0.005% Reading + 8 Digits) .
[ Table 6)
=
1(0.005%
- 11.585 mVdc + 8 + 0.001 mVde)
= 0.008579 mVdc
, RA,o = Rara / 2
= 10.008579 mVdc / 2
= AO.004290 mVdc
- RAMTE= 10.004290 mVdc-The temperature switch is calibrated in the control room. The ambient temperature range is 7311*F (Table 7). The temperature effect is zero within this range (Table 6). Therefore,
- TE = 0 REVISION No. 1 d ..
.,,m ., 7 9 m. #- _. . - - , ,--,---.--.,m+. -
' , - - -- .i__-_______--__--
Exhibit E NEP 12-02 l Revision 4 COMMONWEALTH EDISON COMPANY
/7 CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 21 O
The reading error RES is defined as the least significant digit for a digital readout (Reference 5.1.2). Thereforo RES = 10.001 mVdc MTE2 = [(RAMTE + TE)2 + (RES)2 js>2
= [ (0.004290 mVdc + 0)* + (0.001 mVde)* ]"
= 10 004405 mVdc MTE2 = 0.004405 mVdc This MTE Error must be converted from voltage (mVde) to temperature ('F).
6.2.1.2.1.1 Differential Temperature Switches MTE2stm = 0.004405 mVdc + 160*F / 5.411 mVdc [ Table 3)
= 0.1221*F MTE2stm = 10.1221*F 6.2.1.2.1.2 Ambient Temperature Switches MTE2tm. = 0.004405 mVdc + 300'F /11.115 mVdc [ Table 4)
= 10.1189'F
/7 M.TE2rm. = 10.1189'F V
6.2.1.2.2 Measurement & Test Equipment Error MTE2 Digital Thermometer Per Assumption 3.1, the 2c M&TE error associated wi36 the measurement of the reference junction in the calibration procedure is +/- 2 F. This error is considered an M&TE error for the temperature switch to account for the temperature measurement error related to determining the reference junction compensation for the switch setpoint.
Therefore, converting from 2a to io gives MTE2, = (2 F / 2)
MTE2, = 1 *F 6.2.1.2.3 Calibration Standard Error STD2 STD2 = 0 [ Methodology 2.0)
The calibration standard error is considered neglible for both the digital multimeter and -
the temperature sensor.
6.2.1.2.4 Calibration Error CAL 2 CAL 2 = [(MTE2mm)2 + (MTE2.)2 + (STD2)2 ju O
V REVISION No. 1
- - _ - - - - _ - - _ . _ . . = _ . _ , _ , _ . - . . . _ _ _ _ . . . _ . _ _ _ . _ , _ .
_ _....m.__, . _ _ _
Exhitut E NEP.1242 R2 vision 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 22 Therefore, the total calibrat;on errors for the differential and ambient M&TE are 6.2.1.2.4.1 Differential Temperature Switches .
CAL 2n = 1[ (0.1221*F)' + (1)' + (0)' }" - [6.2 1.2.1.1, 6.2.1.2.2, 6.2.1.2.3)
CAL 24 , = 11.0074'F 6.2.1.2.4.2 . Ambiont Temperature Switches CAL 2r = 1[ (0.1189'F)' + (1)' + (0)* ] [6.2.1.2.1.2, 6.2.1.2.2, 6.2.1.2.3)
CAL 2r = 11.0070'F 6.2.1.3 Settina Tolerance ST2 Per Table 3, the setting tolerance for the AT switch is 1% of Span or :1.5'F. ST2 is a 3a value per Section 2.2.1.
ST2x =11% Span 6.2.1.3,1 Differential Temperature Switches ST2ru3 = 1% = 150*F [ Table 3) i
= 1.5'F ST23 rio = ST2au / 3
= t1.5'F / 3
= 10.5'F ST2 41 = 10.5'F 6.2.1.3.2 Ambient Temperature Switches ST2ru t. 1% + 300*F ~ [ Table 4)
= 13'F ST2rto = ST2ru / 3
= 13*F / 3
= 11*F ST2r = 11'F 6.2.1.4 Drift Error c2Dn Drift error for the temperature monitor will then be 2% of Span per 18 month period per Design input 4.3. The calibration frequency is 3 months (per Ref. 5.2.1, 5.2.2) and the late factor (LF) is adjusted for a .25% large.' calibration frequency.
c2Dn2o= !(2%
- Span /18 month) + 1.25 + 3 month [ Table 5) .
= (5/12)%
- Span O
REVISION No. 1 ,
I e
. . - ~-.-- - . . - .~ ___. - .- - . - -
EahibN E ,
NEP.1242 R: vision 4 COMMONWEALTH EDISON COMPANY:
.]o CALCU!.ATION NO.- L-001420 PROJECT NO. -10244-013' PAGE NO. 23 6.2.1.4.1 - Qifferential Temperature Switches a2Dn3r2.= (5/12)%
- 150*F .
[ Table 3] -
= 10.025'F--
02Dnitio = c2Dn ar2a / 2
= 10.625'F /2
= 10.3125'F a2Dn ar = 10.3125'F
~
6.2.1.4.2 Ambient Temperature Switches o2Dntra= t(5/12)%
- 300'F [ Table 4]
= 1.25'F o2Dnr o= c2Dntro / L
= -11.25'F /2
= 10.625'F a2Dnr = 10.625'F 6.2.1.5 - ' Random Input Error a2 inn
- O 6,2.1.5.1 Differential Temperature Switches The differential temperature switch takes the difference between Outlet and inlet Air Temperatures ( Tour - T.n ). These thermocouples are identical. The random errors at the switch inputs are propagated trom the thermocouples. They are combined by square root sum of squares [ Methodology 2.5].
c2 inn 3r = ' [(c1nour)* + (einin):
= [ (ein)* + (ein)'. ]"' )v2
= 1[ (1.8028'F) + (1.8028'F)* ]"2 [6.1.2]
= 12.5495'F 02innar = 12.5495'F _
6.2.1.5.2 Ambient Temperature Switches c2innr = c1n -
= 1.8028*F [6.1.2]
02innt = 11.8028'F 6.2.1.6 iTotal Random Error, Normal Operating Conditions 02n c2n = [ (RA2)* + (CAL 2)* + (ST2)' + (o2Dn)2 + (o2 inn)2 ]"*
7
.b/.
REVISION No. 0-
Exhibit E NEP.1242 Revision 4 COMMONWEALTH EDISON COMPANY .
^
CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO. 24 6.2.1.6.1 pifferential Temperature Switches o2n3r = [ (0.9171'F)* + (1.0074*F)* + (0.5'F)' + (0.3125*F)' + (2.5495'F)* ]
= 12.9502'F o2n ar = d2.9502'F ,
6.2.1.6.2 Ambient Temperature Switches c2nr = [ (1.8341*F)* + (1.0070*F)* + (1*F)' + (0.625'F)' + (1.8028'F)* ]
= 3.0031'F o2nr = 13.0031*F 6.2.2 Total Random Error, Accident Conditions c2a The temperature switches are located in a controlled environment where the normal operating conditions and accident conditions are the same [ Table 7]. Random error for normal and accident conditions are therefore equal. These will be used for determining margin.
c2a = c2n 6.2.2.1 Differential Temperature Switches 02aa t = 12.9502*F [6.2.1.6.1]
6.2.2.2 Ambient Temperature Switches o2ar u 13.0031*F [6.2.1.6.2]
6.2.3 Non-Random Error, Normal Operating Conditions Ie2n 6.2.3.1 Humidity Error e2Hn No humidity effect errors are provided in the manufacturers specifications. Humidity errors are therefore negligible [ Methodology 2.4]. Also. the switches are located in EQ Zone C1 A, where humidity is controlled at 35 to 45% RH [ Table 7]
I e2Hn =0-6.2.3.2 Temperature Evor e2Tn No temperature effect errors are provided in the manufacturers specifications. The specified operating range is 32 to 122*F [ Table 2].- The instrument is located in the Control Room, EQ Zone C1 A, where temperature is controlled at 72 to 74*F [ Table 7]. Temperature is therefore bounded.
e2Tn =0 O
Q _
R EVISION No. 1
l Exhibit E NEP.1242 R:vi'im 4 COMMONWEALTH EDISON COMPANY O
o CALLULATION NO. L-001420 PROJECT NO.
10244-013 PAGE NO. 25 6,2.3.3 Radiation Error e2Rn No radiation errors are provided in the manufacturefs specifications. These errors are negligible [ Methodology 2.7) Also, the instrument is located in the Control Room, EQ Zone C1 A, a mild environment (Table 7).
e2Rn =0 6.2.3.4 Seismic Error e2Sn No seismic effect errors are provided in the manu'acturers specifications. A seismic event defines a particular type of accident condition. There is therefore no seismic error for normal operating conditions e2Sn =0 6.2.3.5 Static Pressure Offset Error e2SPn The temperature switch is an electrical device and therefore not affected by static pressure.
e2SPn =0 6.2.3.6 Ambient Pressure Error e2Pn gm The temperature switch is an electrical device and therefore not affected by ambient
')
pressure, e2Pn =0 3.2.3.7 Process Error e2Prn The temperature switch receives an analog input. Any process error would be propagated from the thermocouples. This was taken into account as the operating influence of reference junction compensation error. Therefore, e2Prn =0 0.2.3.8 Power Supply Effects e2Vn The manufacturer defines the power supply effect as 10.5% of instrument Span over range of normal operating voltages. The voltage requirement is 120 VAC 10% [ Table 2).
e2Vn = 10.5% of Spaa 6.2.3.8.1 . Differential Temperature Switches e2Vn3r = 10.5% + 150'F
= 0.75'F e2Vnar =iO.75'F
,m REVISION No. 0
I Exhibit E NEP 1242
}. Revision 4 j COMMONWEALTH EDISON COMPANY lv h CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 26 6.2.3.8.2 Amt,;qt Temperature Switches e2Vnr = 10.5% + 300'F -
= 11.5'F e2Vnr = 11.5'F 6.2.3.9 Insulation Resistance Error e2lRn References 5.6.3 and 5.6.4 state that insulation resistance enor for th3rmocouples and thermocouple lead wires is negligible. Thenfore, e21Rn =0 6.2.3.10 Non-Random input Error e2 inn ,
e2 inn = Iei n = 0 [6.1.4.3) 6.2.3.11 Total Non-Random Error, Normal Conditions Ie2n '
Ie2n = e2Hn + e2Tr. + e2Rn + e2Sn + e2SPn + e2Pn + e2Prn + e2Vn
+ e21Rn + e2 inn
= 0 + 0 + 0 + 0 + 0 + 0 + 0 + e2Vn + 0 + 0 3
= e2Vn
'w]
6.2.3.11.1 Differential Temperature Switches Ie2nn = e2Vnn
= 10.75'F [6.2.3.8.1)
Ie2nu = 10.75'F 6.2.3.11.2 AmNent Temperature Switches Ie2nr = e2Vnr e
= 11.5'F [6.2.3.8.2]
Ie2nr = ii.5'F 6.2.4 Non-Random Error, Accident Conditions Ie2a 6.2.4.1 Humidity Error e2Ha No humidity effect errors are provided in the manufacturer's specifications. Humidity errors are therefore negligible (Methodology 2.4]. Also, the switches are located in EQ Zone C1A, where humidity is controlled at 35 to 45% RH [ Table 7].
e2Ha =0
'f~h C/
REVISION No. 1
Enh6b6t E NEP4242-R2 vision 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO. 27 6.2.4.2 Temperature Error e2Ta No temperature effect errors are provided in the manufacturers specifications. The specified operating range is 32 to 122*F [ Table 2). The instrument is located in the Control Room, EO Zone C1 A, where temperature is controlled at 72 to 74'F [ Table 7).
Temperature is therefore bounded.
.e2Ta = 0 6.2.4.3 Radiation Error e2Ra No radiation errors are provided in the manufacturers specifications. These erro.s are negligible [ Methodology 2.6]. Also, the instrument is located in the Control Room, EQ Zone C1 A, a mild environment (Table 7).
e2Ra =0 6.2.4.4 Seismic Error e2Sa No seismic effect errors are provided in the manufacturers specifications and the switch is seismically qualified [ Reference 5.4.5). Therefore, e2Sa = 0 6.2.4.5 Static Pressure Offset Error e2 spa
, The temperature switch is an electrical device and therefore not affected by static pressure, e2 spa = 0 6.2.4.6 Ambient Pressure Error e2Pa
.The temperature switch is an electrical device and therefore not affected by ambient pcessure.
e2Pa = 0 6.2.4.7 Process Errer e2Pra
, The temperature switch receives an analog input. Any process error would b propagated l- from the thermocouples. This was taken into account as the operating infh en te of l
reference junction compensation error. Therefore,.
e2Pra = 0 9
REVISION No. 0
Exhibit E NEP 12 02 -
H: vision 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L 001420 PROJECT NO. 10244-013- PAGE NO. 28 6.2.4,9 Power Supply Effects e2Va The manufacturer defines the power supply effet.t as 10.5% of instrument Span over range of normal operating voltages. The voltage requirement is 120 VAC 10% [ Table 2].-
e2Va = 10.5% of Span 6.2.4.8.1 pifferential Temperature Switches e2Va3r= 10.5% + 150*F
= 10.75'F-e2Va3r = 10.75'F 6.2.4.8.2 Ambient Temperature Switches e2 Var = 10.5% + 300'F
= 11.5'F e2 Var = 11.5'F 6.2.4.9 Insulation Resistance Error e2lRa References 5.6.3 and 5.6.4 state that insulation resistance error for thermocouples and thermocouple lead wires is negligible. Therefore, e2lRa = 0 6.2.4.10 Non-Random Input Error e2ina e2ina = Ie1a = 0 (6.1.4.3) 6.2.4.11 Total Non-Random Error, Accident Conditions Ie2a Ie2a = e2Ha + e2Ta + e2Ra + e2Sa + e2 spa + c;2Pa + e2Pra + e2Va
+ e2lRa + e2ina
= 0 + 0 + 0 + 0 + 0 + 0 + 0 + e2Va + 0 + 0
= e2Va 6.2.4,11.1 Differential Temperature Switches Ie2a3r = e2Va3r
= 10.75'F [6.2,4.8.1]
Ie2aar = 10,75'F 6.2,4.11.2 Ambient Temperature Switches Ie2a r= e2Va r
= 11.5'F [6.2.4.8.2]
f3 Q Ie2a r = 11.5'F REVISION No. !1 ,
l-
Exhibit E NEP.1242 R: vision 4 COMMONWEALTH EDISON COMPANY Q
ks CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 29 6.3 TOTAL ERROR CALCULATIONS 6.3.1 Total Error, Normal Operating Conditions - 2a Random Errors 6.3.1.1 Differential Temperature Switches 2TE2ns t = 2
- c2n s t + Ie2n3r
= 1( 2
- 2.9502*F + 0.75'F ) [6.2.1.6.1, 6.2.3.11.1]
= 18.6504*F 2TE2nar = d6.6504'F 6.3.1.2 Ambient Temperature Switches 2TE2nr = 2
- c2nr + Ie2nr
= 1( 2 + 3.0031'F + 1.5'F ) [6.2.1.6.2, 6.2.3.11.2]
= 17.5062*F 2TE2nr = 17,5062'F 6.3.2 Total Error Accident Conditions - 2a Random Errors 6.3.2.1 Differential Temperature Switches 2TE2asr = 2
- c2as t + Ie2as r
= ( 2 + 2.9502*F + 0.75'F ) [6.2.2.1, 6.2.4.11.1]
= 16.6504*F 2TE2aar = 16.6504*F 6.3.2.2 Ambient Temperature Switches 2TE2ar = 2
- c2ar + Ie2ar
= 1( 2
- 3.0031*F + 1.5'F ) [6.2.2.2, 6.2.4.11.2]
= 17.5062'F 2TE2ar = 17.5062'F 6.3.3 Total Error, Normal Operating Conditions - 1a Random Errors 6.3.3.1 Differential Temperature Switches iTE2nar = c2nar + Ie2n3r
= 1(2.9502*F + 0.75'F ) [6.2.1.6.1, 6.2.3.11.1)
= 13.7002*F 1TE2nar = 3.7002 *F O-O REVISION No. 1
l Exhibit E ;
NEP.12 02 .
i R:vis6on 4 COMMONWEALTH EDISON COMPANY CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 30 0.3.3.2 Ambient Temperature Switchet .
1TE2nr = c2nr + Ie2nr *
= f(3.0031*F + 1.5'F ) [6.2.1.6.2, 6.2.3.11.2)
= 4.5031*F 1TE2nr = 4.5031 *F 6.3.4 Total Error, Accident Conditions io Random Erro s 6.3.4.1 Differential Temperature Switches 1TE2a3r = o2a3r + Ie2as t
= f(2.9502'F + 0.75'I~ ) [6.2.2.1, 6.2.4.11.1)
= 13.7002*F iTE2ar= a 3.7002 *F 6.3.4.2 Ambient Temperature Switches 1TE2a r = c2a r+ Ie2ar
= i(3.0031*F + 1.5'F ) [6.2.2.2, 6.2.4.11.2)
= 14.5031 'F
.O 1TE2ar= 4.5031'F V
6 3.5 Total Error The accident condition errors are the errors of interest for this calculation, but the normal and accident errors are equal. Denote the total errors as follows.
6.3.5.1 Differential Temperature Switches 1TE21 3 = 1TE2a3r = 1TE2n3r = 3.700?*F [6.3.3.1, 6.3.4.1) 2TF2ar = 2TE2a3r = 2TE2n s t = 6.6504'F [6.3.1.1, 6.3.2.1]
6.3.5.2 Ambient Temperature Switches 1TE2r = 1TE2ar = 1TE2nr = 4.5031*F [6.3.3.2, 6.3.4.2) 2TE2r : = 2TE2ar = 2TE2nr= 7.5062*F [6.3.1.2, 6.3.2.2)
S,4 Determination Of The Nominal Trip Setpoint (NTSP) For Actuation On increasing Parameter 6.4.1 Setpoint Margin (MA.R)
Per Reference 5.1.2, a margin of 0.5% of span is recommeraded to account for unknown loop uncertainties, in order to provide additional conservatism, a margin of 0.85% of span will be utilized. The margins for the ambient and differential temperature switches are 7,
calculated below.
L)
REVISION No. 1-
Exhibit E NEP.12.C2 Remion 4 COMMONWEALTH EDISON COMPANY
. CALCULATION NO. L-0 1420 PROJECT NO. 10244-013 PAGE NO. 31 6l4.'i.1 Differential Temperature Switches -
MARr 3 = 0.85%(150'F) .
= 1.275'F -
6.4.1.2 Ambient Temperature Switches MART = 0.85%(300*F)
= 2.55'F 6.4.2 RWCU Pump Room. Differential Temperature Switches Per Section 4,7, the Analytical Limit for the RWCU Pump Room AT is 94.0*F, at 25 gpm leakage.
= 94.0*F - (6.6504'F + 1.275'F) [4.7, 6.3.5.1, 6.4.1.1)
= 86.0746*F Round to 86*F 6.4.3 RWCU Pumo Room. Ambient Temperature Fwitches Per Section 4.7, the Analytical Limit for the RWCU Pump Room Temperature is 212.0*F at 25 gpm leakage.
= 212.0*F - (7.5062*F + 2.55'F) [4.7, 6.3 5.2, 6.4.1.2)
= 201.9438'F Round to 201*F 6.4.4 RWCU Heat Exchanaer Room. Differential Temperature Switches Per Section 4.7, the Analytical Limit for the RWCU Heat Exchanger Room AT is 41.8'F at 25 gpm leakage.
= 41.8'F - (6.6504'F + 1.275'F) [4.7, 6.3.5.1, 6.4.1.1] f
= 33.8746*F Round to 33*F
- 6.4.5 RWCU Heat Exchanoer Room. Ambient Temperature Switches -
l
' Per Section 4.7, the Analytical Limit for the RWCU Heat Exchanger Room Temperature is
' 159.8'F at 25 gpm leakage.
I i REVISION No.- 1 I 'i
= - - -
Eahiba E I NEP 1242 !
revision 4 i COMMONWEALTH EDISON COMPANY j CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 32
= 159,8'F - (7.5062*F + 2.55'F) [4.7, 6.2.5.2, 6.4.1.2) -
= 149.7438'F Round to 149'F 6.4.6 RWCU Pumo Valve Room. O!fferential Temperature Switches Per Section 4.7, the Analytical Limit for the RWCU Pump Valve Room AT is 94.0'F at 25 gpm leakage.
= 94.0*F - (6.6504'F + 1.275'F) [4.7, 6.3.5.1, 6.4.1.1)
= 86.0746'F Round to 86*F 6.4.7 RWCU Pumo Valve Room. Ambient Temperature Switches Per Section 4.7, the Analytical Limit for the RWCU Pump Valve Room Temperature is
.?12.0*F at 25 gpm leakage NTSPr = AL -(2TE2r + MAR)
= 212.0*F - (7.5062*F + 2.55'F) [4.7, 6.3.5.2, 6.4.1.2]
I O = 201.9438'F Round to 201*F 6.4.8 RWCU Mezzanine Area. Differential Temperature Switches Per Section 4.7, the Analytical Limit for the RWCU Mezzanine A,ea AT is 94.0*F at 25 gpm leakage.
NTSPar = AL-(2TE2 3r + MAR)
= 94.0*F - (6.6504'F + 1.275'F) [4.7, 6.3.5.1, 6.4.1.1]
= 86.0746*F Round to 86'F
~
6.4.9 B_WCU Mezzanine Area. Ambient Temperature Switches Per Section 4.7. the Analytical Limit for the RWCU Mezzanine Area Temperature is 212.0'F at 25 gpm leakage.
= 212.0*F -_(7.5062*F + 2.55'F) [4.7, 6.3.5.2, 6.4.1.2)
= 201.9438'F Round to 201'F REVISION No. 1
Exhitdt E NEP 1242 RevisH>n 4 COMMONWEALTH EDISON COMPANY C') CALCULATION NO. L 001420 V* PROJECT NO. 10244-013 PAGE NO. 33 6.4.10 RWCU F/D Valve Room. Differential Temperature Switches Per Section 4.7, the Analytical Limit for the RWCU F/D Valve Room AT is 94.0*F at 25 gpm leakage.
= 94.0'F - (6.0504'F + 1.275'.*-) {4.7, 6.3.5.1, 6.4.1.1)
= 86.0746*F Round to 86*F 6.4.11 RWCU F/D Valve Room. Ambient Temearature Switches Per Section 4.7, the Arialytical Limit for the RWCU Valve Room Temperature is 212.0'F at 25 gpm leakage.
= 212.0*F - (7.5062*F + 2.55'F) [4.7, 6.3.5.2, 6.4.1.2)
= 201.9438'F Round to 201*F 6.5 Determination of Allowable Values (AV) n i 6.5.1 Assurance that the analyticallimit is not violated is accomplished by determining an allowable value that provides margin from the analytical limit whereby instrument degradation can be detected without violating the analyticallimit. The allowable value is calculated by adding the total normal errors to the trip setpoint. Therefore, per Reference 5.1.2, the allowable value is AV = NTSP + 2TE2 T! ; aal errors calculated (2TE2) in Section 6.3 are based on conservative (i.e. larger) estimates of errors to ensure a conservative setpoint with respect to the analyticallimit. In order to account for potential overestimates in the calculation of total normal errors, the total errors used to determine the allowable value will be reduced by an additional 0.15% cf span. This will result in a tower allowable value which is more conservative with respect to the analyticallimits. Therefore, 2TE24v a 2TE2 - 0.15% (Span) 6.5.1.1 Qifferential Temperature Switches 2TE2apa= 6.6504*F - 0.15%*(150*F) [6.3.1.1]
2TE2arpw = 6.6504*F - 0.225'F 2TE2arpw = 16.4254*F e .: 7 s .
REVISION No. 1
- _ ~
Ethitnt E
- NEP 1242 Revision 4 COMMONWEALTH EDISON COMPANY N\ _/ CALCUll. TION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 34
'6.5.1.2 - Ambient Temperature Switches '
2TE2tpa= 7.5062'F 0.15%'(300'F) ,
(6.3.1.2)
- 2TE2rgw = t 7.5062'F - 0.45'F .
2TE2r~pv, = i 7.0562*F 6.5.2 RWCU Pumo Room Differential Temperature Switches Per Reference 5.1.2, the allowable value for actuation on increasing parameter is given by; AV 61 = NTSPar + 2TE23rgw
= 86.0746'F + 6.4254'F (6.4.2, 6.5.1.1)
= 92.5'F '
6.5.3 RWCU Pumo Roqm. Ambient Temperature Switches Per Reference 5.1.2, the allowable value for actuation on increasing parameter is given by:
AVr = NTSPr + 2TE2rra
= 201.9438'F + 7.0562*F (6.4.3, 6.5.1.2)
= 209,00 'F 6.5.4 RWCU Heat Exchancer Room. Differertial Temocrature Switches From Reference 5.1.2, the allowable value for actuation on increasing parameter is given by:
AVar = NTSPar + 2TE2 3rmw
= 33.874S*F + 6.4254'F (6.4.4,6.5.1.1) l
= 40.3 'F 6.5.5 RWCU Heat Exchanaer Room. Ambient Temperature Switches Per Reference 5.1.2. '.he allowable value for actuation on increasing parameter is given by:
AVr = NTSPr + 2TE2rgw -
= 149.7438'F + 7.0562'F (6.4.5, 6.5.1.2]
= 156.8 'F 6.5.6 RWCU Pumo Valve Room. Differen*ial Tempera.sre Switches Per Reference 5.1.2, the allowable value for actuation on increasing parameter is given by:
AVar = NTSPar + 2TE2armv3
= 86.0746'F + 6.4254*F [6.4.6, 6.5.1.1) r'
= 92.5'F REVISION No. 1 l
L
Exhibit E NEP.1242 Rwision 4 COMMONWEALTH EDISON COMPANY fl G
CALCULATION NO. L-001420 PROJECT NO. 10244-013 PAGE NO. 35 6.5.7 RWCU Pumo Valve Room. Ambient Temperature Switches Per Reference 5.1.2, the allowable value for actuation on incteasing parameter is given by:
AVr = NTSPT + 2TE2rgw
= 201.9438'F + 7.0562*F (6.4.7, 6.5.1.2)
= 209.0 *F 6.5.8 RWCU Mezzanine Area. Differential Temperature Switches Per Reference 5.1.2, the allo %ble value for cctuation on increasing parameter is given by:
AVsr = NTSPar + 2TE2sigw
= 99 0746*F + 6.4254*F (6.4.8, 6.5.1.1]
= 92.S*F 6.5.9 RWCU Mezzanine Area. Ambient Temperature Switches Per Reference 5.1.2, the allowable value for actuation on increasing parameter is given by:
AVr = NTSPr + 2TE2rgw
= 201.9438'F + 7.0562*F [6.4.9, 6.5.1.2)
O = 209.00 *F fy 6.5.10 BWCU F/D Valve Room. Differential Temperature Switches Per Reference 5.1.2, the allowable value for actuation on increasing parameter is given by:
AV3 r = NTSP3 r + 2TE2stga
= 86.0746*F + 6.4254*F [6.4.10, 6.5.1.1)
= 92.5'F 6.5.11 W CU F/D Valve Room. Ambient Temperature Switches R_,
Per Reference 5.1.2, the allowaole value for actuation on increasing parameter is given by:
AVr = NTSPr + 2TE2rgw
= 201.9438'F + 7.0562*F [6.4.11, 6.5.1.2)
= 209.0 *F n
/)
V REVISION No. 1
- - ~ .
, ~ . - . . , - . . . . . , - _ . . , ~ . . . , ~ _ . ~ - . - _ _ . - _ . - . . . . . . . . - .
Enhttdt E -
. NEP.1242 R:vio6on 4 ' .
COMMONWEALTH EDlSON COMPANY j
~
CALCULATION NO. L 001420 PROJECT NO.- :- 10244-013 PAGE NO.- 36 --
6.6 Determination of Alarm Setpoints For Actuation On increasing Parameter ;
6.6.1. Description J l
The Alarm Setpoint (ASP) is determined by the following equation: i ASP - . = ALL - (1TE + MAR)
The above equation was based on Reference 2.1 for determination of setpoint. - Since this is for alarm function, the designations are different and are thereb'j defined below. .
Where:
- ASP = Alarm setpoint ALL = Alarm Limit
. MAR = Margin 1TE = TotalInstrument Loop Error - 1o random errors Since an alarm setpoint is being calculated and the difference is minimal between the-operatmg limit and the Alarm Limit (ALL), the margin (MAR) will be set to zero (0).
Per Reference 5.1.5 and Section 2.9, the alarm setpoint is calculated with total errors that
. have random errors at the la confidence level. The alarm limits are based on 5 gpm leakage.
6.6.2 RWCU Pumo Room Differential Temperature Switchet Per Section 4.7, the Alarm Limit for the RWCU Pump Room AT is 32.4'F, ASPar = ALL 1TE23r ASPar = 32.4'F 3.7002'F (4,7, 6.3.5.1)
= 28.6998 'F Round to 28'F 6.6.37 RWCU Pumo Room. Ambient Temperature Switches Per Section 4.7, the Alarm Limit for the RWCU Pump Room Temperature is 136.4'F.
ASPr = ALL- 1TE2r ASPt. = 136.4*F 4.5031*F ' (4.7, 6.3.5.2} -
= 131.8969 'F 4
Round to 131'F i
O ..
REVISION No; 1 y
, - - ~ ~ , - . .
,,,.c,.en.., . + . , - -. , . -. -+n , -,, , - . . - - - -'
Exhibit E NEP.12-02 Revision 4 COMMONWEALTH EDISON COMPANY O c^'cu'^'io" "o '-oo'42o eaoaeoT "o- ,o244-o,3 e^oe "o 37 6.6.4 RWCU Heat Exchanaer Room Differential Temperature Switches Per Section 4.7, the Alarm Limit for the RWCU Heat Exchanger Room AT is 24.6'F.
ASPar = ALL - 1TE21 3 ASPar = 24.6*F 3.7002'F [4.7, 6.3.5.1)
= 20.8998 'F Round to 20*F 6.6.5 RWCU Heat Exchanaer Room. Ambient Temperature Switches Per Section 4.7, the Alarm Limit for the RWCU Heat Exchanger Room Temperature is 128.6*F.
ASPr = ALL - 1TE2r ASPr = 128.6*F 4 5031*F (4.7, 6.3.5.2]
= 124.0969 *F Rounj to 124*F 6.6.6 RWCU Pumn Valve Room Differential Temperature Switches Per Section 4.7, the Alarm Limit for the RWCU Pump Valve Room AT is 41.0*F.
ASPay = ALL - 1TE23r ASPar = 41.0'F 3.7002*F (4.7, 6.3.5.1]
= 37.2998 'F
, Round to 37'F 6.6.7 RWCU Pump Valve Roorn Ambient Temperature Switches Pef Section 4.7, the Alarm Limit for the RWCU Pump Valve Room Temperature is 145.0*F.
ASPr = ALL -1TE2r ASPT = 145.0'F - 4.5031*F (4.7, 6.3.5.2)
= 140.4969 'F Round to 140'F O
REVISION No. 1
Eshibn E NEP.1242 Revision 4 COMMONWEALTH EDISON COMPANY
[7) CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO. 38 6.6.8 RWCU Mezzanine Area. Differential Temperature Switches Per Section 4.7, the Alarm Limit for the Mezzanine Area ATJs 40.8'F.
ASPe.t = ALL 1TE23r ASPar = 40 B'F 3.7002*F (4.7, 6.3.5.1)
= 37.0998 *F Round to 37'F 6.6.9 RWCU Mezzanine Area. Ambient Temperature Switches Per Section 4.7, the Alarm Limit for the RWCU Mezzanine Area Temperature is 144.8'F.
ASPr = ALL 1TE2r ASPr = 144.8'F 4.5031*F (4.7, 6.3.5.2)
= 140.2969 *F Round to 140*F 6.6.10 RWCU F/D Valve Room. Differential Temperature Switches r3 Per Section 4.7, the Alarm Limit for the RWCU F/D Valve Room AT is 44.5'F.
I ASPar = ALL - 1TE23r ASPar = 44.5'F - 3.7002'F [4.7, 6.3.5.1)
= 40.7998 'F Round to 40'F 6.6.11 RWCU F/D Valve Room. Ambient Temperature Switches Per Section 4.7, the Alarm Limit for the RWCU F/D Valve Ruom Temperature is 148.5'F.
ASPr = ALL -1TE2r ASPr = 148.5'F - 4.5031'F (4.7, 6.3.5.2)
= 143.9969 'F Round to 143*F
,S CI REVISION No. 1 l
l
~- .- . -. . , _ _ _ . __ ~ _ . . . - . . ~ . - - . ..- - -_. - - - . . . ~
k Exhibit E NEP.1242 R:vdon 4 COMMONWEALTH EDISON COMPANY C
V CALCULATION NO. L 001420 PROJECT NO. 10244-013 PAGE NO 39 7,
SUMMARY
AND CONCLUSIONS
- The following table provides the allowable value, the alarm setpoint, and the setpoint to initiate the RWCU isolation for the listed instruments.
AT Ambient Inst No Allowable isolation Alarm Inst. No Allowable Isolation Alarm Roonis (1E31-) Value Setpoint Setpoint (1-E 31-) Value Setpoint Setpoint
('F) ('F) ('F) ('F) ('F) ('F)
RWCU P" .; N600A,B N601A.B Rooms N600E.F 92.5 86 28 N601E.F 209 201 131 (A.Bl RWCU Pump 92.5 86 " N601C,0 209 201 140 N600C.D Valve Room RWCU HX N600G,H N601G,H I Rooms N600J.K 40.3 33 20 N601J.K 156 8 149 124 (A 8)
RWCU Mezzanine N621A.B 92 5 86 37 N620A,B 209 201 140 Area RWCU F/D N623A B 92.5 86 40 N622A B 209 201 143 Valve Room TABLE 8 Note: This calculation includes unverified assumptions. Refer to Sections 3.2,3.3,3.4, and 3.5 and Reference 5.6.5 for a description of the unvenfied assumptions.
l FINAL PAGE J
REVISION No. 1
- .