ML20087H505

Forwards Response to 840202 Request for Addl Info Re NUREG-0737,Items II.F.1.4, Containment Pressure Monitor Sys, II.F.1.5, Containment Water Level Monitor Sys & II.F.1.6, Containment Hydrogen Monitor Sys

ML20087H505
Person / Time
Site:	Brunswick
Issue date:	03/09/1984
From:	Zimmerman S CAROLINA POWER & LIGHT CO.
To:	Vassallo D Office of Nuclear Reactor Regulation
References
RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.1, TASK-TM NLS-84-111, NUDOCS 8403210061
Download: ML20087H505 (20)

Text

f ,,

e CD&L

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Carolina Power & Light Company SERIAL: NLS-84-111 MAR 0 91984 Director of Nuclear Reactor Regulation Attention: Mr. D. B.-Vassallo, Chief

. Operating Reactors Branch No. 2 Division of Licensing United States Nuclear Regulatory. Commission Washington, DC 20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS. 1 AND 2 DOCKET NOS. 50-325 AND 50-324 o LICENSE NOS. DPR-71 AND DPR-62

-RESPONSE TO REQUEST FOR ADDITIONAL INFORMATION - NUREG-0737 ITEM II.F.1.4, CONTAINMENT PRESSURE MONITOR SYSTEM ITEM II.F.1.5, CONTAINMENT WATER LEVEL MONITOR SYSTEM ITEM II.F.1.6, CONTAINMENT HYDROGEN MONITOR SYSTEM

Dear Mr. Vassallo:

-In your letter dated February 2, 1984, Carolina Power & Light Company (CP&L) was requested to provide information regarding NUREG-0737, Items II.F.1.4, .5 cud .6. The two general subject areas were identified as Attachments 2 and 14 to that letter.

Attachment 2 requested identifleation of any exceptions taken to those NUREG requirements that are within the review scope of the Containment Systems Branch. In response, CP&L considers Brunswick's implementation of the three subject items to be in complete compliance with the requirements stated in NUREG-0737.

Attachment 14 requests presentation of information related to the accuracy and time response characteristics of the equipment installed on the three subject items. In response, Attachment 1 to this letter provides the requested data.

Should you have any questions concerning this letter, please do not hesitate to contact a member of our Licensing Staff.

Yours very truly, m

8403210061 840309 S. Zi erman PDR ADOCK 05000324 Man

.P PDR Nuclear Licensing Section PPC/ccc (9653PPC) a ec: Mr. D. O. Myers (NRC-BSEP) fe Mr. J. P. O'Reilly (NRC-RII) h Mr. M. Grotenhuis (NRC) J k g fg 411 Fayetteville Street

• P. O. Box 1551 e Raleigh. N. C. 27602

ATTACHMENT 1 Response to: Attachment 14 of NRC letter dated February 2,1984, titled:

" Request for Additional -Information on three NUREG-0737 Items II.F.1.4 Containment Pressure Monitor II.F.1.5 Containment Water Level Monitor II.F.1.6 Containment Hydrogen Monitor" (2) II.F.1.4 - PRESSURE MONITORING SYSTEM (PMS) - ACCURACY AND RESPONSE c.

The wide range containment pressure monitoring system consists of two independent instrument loops, one driving a recorder and the other providing indication only. Both loops are calibrated over the range of

(-)5 to (+)245 PSIG. Since the loop components vary, they are' treated separately in the following discussion.

LOOP # 1 (2al) BLOCK DIAGRAM I I I Calibration l_ _ CAC-PT-4175 CAC-PR-1257-1 X-Xf-4346 l Test l [ Power Supply l l Gauge g l__ __ __ __ __I S

- - - --e , , - - - . - , . - - , . , - , -

'(2b1) MODULE UNCERTAINTY PARAMETERS CALIBRATI0d TEST GAUGE: HEISE PRESSURE GAUGE (REFERENCE #1)

General Accuracy: t0.1% of full scale. Two gauges are used

- one to cover the vacuum range and the other for the positive pressure range (300 PSIG). .Therefore, the greater uncertainty introduced is = * (.001) (300) =

• 0.3 PSIG Sg1 = Standard Deviation = * (1/3) (0.3)

= t 0.1 PSIG Temperature Effects: Not significant since the installed instrument location is near the ambient temperature of the lab in which the test gauges are calibrated.

CAC-PT-4175: ROSEMOUNT MODEL 1152 PRESSURE TRANSMITTER (REFERENCE #2)

General Accuracy: t0.25% of calibrated span (250 PSIG)

=t (.0025) (250) =t .625 PSIG ST1 = Standard Deviation =t (1/3) (0.625)

= i .208 = i .21 PSIG ,

Random Error:

Stability)=

(300 PSIG i 0.25% of upper range limit

= (.0025) (300) = i .750 PSIG ST2 = Standard Deviation = t (1/3) (0.750)

= * .250 = * .25 PSIG .

Temperature Effects: Total temperature effect including span and zero errors:

-@ min span (0-50) =

• 3.5% span /1000F 0 max span (0-300)=

• 1.0% span /1000F Interpolating for calibrated span of 2500F,

. effect = 1 1.5% span /1000F Post-accident temperature at instrument location peaks at 210 F 0 (140 F 0 above normal

~

ambient); therefore, the maximum temperature effect = i (.0015) (250) (1.4)

= * .525 = t .53 PSIG ST3 = Standard Deviation = * (1/3) (0.53)

= t .177 = i .18 PSIG Power Supply Voltage: i 0.005% of span (250 PSIG) per volt

= i .00005 (250) = t .0125 PSIG/ Volt Negligible compared to other effects considered Hysteresis: Included in general accuracy statement

~

Deadband: None

r CAC-PR-1257-1: BAILEY CONTROLS SR-1310 RECORDER (REFERENCE #3)

General Accuracy:

• 0.5 of span (250 PSIG)

* (.005) (250)

• 1.25 PSIG SR1 = Standard Deviation = i (1/3) (1.25)

* .42 PSIG Random Errors: Linearity

• 0.25% of span (250 PSIG)

= * (.0025) (250) = i .63 PSIG Sap = Standard Deviation = * (1/3) (.63) = i

.21 PSIG Repeatability =

• 0.1% of span (250 PSIG)

= i (.001)-(250) = i .25 PSIG SR3 = Standard Deviation = * (1/3) (.25) = *

.US PSIG Power Supply Voltage: <0.02% of span (250 PSIG) per volt over the normal supply range of 23-29 VDC = * (.0002)

(250) =

• 0.05 PSIG/ Volt Negligible compared to other effects considered Hysteresis: 0.15% of span (250 PSIG)

= (.0015) (250) = .38 PSIG Hysteresis Loop Half Width = .19 PSIG Deadband

0.1% of span (250 PSIG)

= (.001) (250) = .25 PSIG Deadband Loop Half Width = .13 PSIG (2c1) OVERALL SYSTEM UNCERTAINTY NOTE: The techniques utilized here, and in subsequent sections of this report, for combination of the various module uncertainty parameters are based on the instructions

. presented on pages 6 and 7 of Attachment 14 of the February 2,1984 NRC letter.

Under normal plant ambient temperature conditions, the standard deviation

of the total measurement error is bounded by:

S2 (total system) = S2 (s) = S2 (s,b) + H2 (s) + H(s)

• D(s) + D2 (s)/2 S(s,b) = /S GI +ST1 +ST2 +SR1 +SR2 2+S R3

=

/.102 + .212 + 252 + .422 + .212 + .082

=

/.344 = * .59 PSIG

=

H(s) .19 PSIG

=

D(s) .13 PSIG O

Then:

'S (total system) =/(.59)2-+(,19)2+(.19)(.13)+(.13)2/2

=

/.417

= i .65 PSIG Under maximum accident temperature conditions at the transmitter location, the standard deviation of the total measurement error increases as follows:

S(s,b) =

/S gi 2+ST1 2+ST2 2+ST3 2+3R1 2+SR22+SR3

=

/ .102 + .212 + .252 + .182 + ,422 + .212 + .082

=

/.376 =

• .61 PSIG Then:

S (total system) =/(.61)2+(,19)2+(.19)(.13)+(.13)2/2

=

/.441 = + .66 PSIG

-(2dl) MODULE TIME RESPONSES CAC-PT-4175: Time constant continuousl;, adjustable between 0.2~and 1.67 seconds. To be left at factory setting of 0.2 seconds.

CAC-PR-1257-1: Pen speed adjustable from less than 1 second-to greater than 15 seconds for 98% of span. To be left at minimum setting, assume

= 1 second for 98% of span.

(2el) OVERALL SYSTEM TIME RESPONSE To be completed by NRC.

LOOP # 2 (2a2) BLOCK' DIAGRAM c _- _- _ _ )

I

! alibration C L- - CAC-PT-4176 CAC-PI-4176 (-XY-4350 l Test l

[ Power Supply l Gauge I -_ __ _ - a, ..

O

• -m e ---v, e -w ww*- r <-*-~s *-w rw e4<v-- w w- v' ~~e>'r~evw-- rv-s'-Y -- "r+- ?~- "

~

(2b2) UNCERTAINTY PARAMETERS

~ CALIBRATION TEST GAUGE: HEISE PRESSURE GAUGE (REFERENCE #1)

Same range and uncertainty parameters as stated above for Loop #1.

Use:

SG1 =-t 0.1 PSIG CAC-PT-4176 : -ROSEMOUNT 1152 PRESSURE TRANSMITTER (REFERENCE #2)

Same range and uncertainty parameters as stated above for PT-4175.

Use:

ST1 = + .21 PSIG ST2 = t .25 PSIG ST3 = * .18 PSIG CAC-PT-4176: INTERNATIONAL INSTRUMENTS SERIES 1151 INDICATOR (REFERENCE #4)

General Accuracy:

• 1.5% of span (250 PSIG)

i (.015) (250)

• 3.75 PSIG Sit = Standard Deviation = * (1/3) (3.75)

i 1.25 PSIG Random Error: Repeatability

• 2.0% full scale (250 PSIG)

= i (.02) (250) = i 5.0 PSIG SI Standard Deviation = * (1/3) (5.0) = i 1.2/ =PSIG Temperature Effects: Not stated

. Power Supply Voltage: Not applicable Hysteresis: Not stated

^

Deadband: Not stated O

r

~(2c2) OVERALL SYSTEM UNCERTAINTY Under normal plant ambient temperature conditions _, the standard dev1ation of the total measurement error is bounded by:

S 2 (total system) = S2 (s) = S2 (s,b) + ti2(s) + H(s)

• D(s) + D2 (s)/2 S(s,b) = / Sgt2+S T1 +ST2 +SIl +SI2

= . / .102 + .212.+ .252 + 1.252 + 1,72

=

/4.7 = i 2.14 PSIG Since both H(s).and D(s) = 0, S (total system) = S2 (s,b) =

• 2.14'PSIG Under-maximum accident temperature conditions at the transmitter location, the standard deviation of the total measurement error is calculated as follows:

S(s,b) =

]Sgi2+ST12+ST22+ST32+3 I12+S !22

=

/.102 + .212 + .252 +. 182 + 1.252 + 1.72

=

/4.60 =

• 2.15 PSIG since both H(s) and D(s) = 0, S (total system) = S2 (s,b)- = i 2.15 PSIG Note that due to the relative magnitude of Sri, inclusion of the temperature effect does not significantly increase the system standard deviation.

(2d2). MODULE TIME RESPONSES CAC-PT-4176: Time constant continuously adjustable between 0.2 and 1.67 seconds. To be left at factory setting of 0.2 seconds.

CAC-PI-4176: Response time: 2.5 seconds maximum (includes response to a 3/4 full scale step change, with settling to within 1.5% full scale of the step target)

Damping factor: 5 minimum (per ANSI C39.1)

O

~

'(2e%) ~ '0VERALL SYSTEM TIME RESPONSE To be computed.by NRC.

-(3) -II.F.1.5 - WATER LEVEL MONITORING SYSTEM (WLMS) - ACCURACY The wide range suppression pool water level monitoring system features independent instrument loops, each monitoring over a calibrated range of 192 inches. Since the loop components vary, the loops are treated

-separately in the following discussion.

LOOP # 1 (3al)- BL0cK DIAGRAM e - --

I l

I Calibration l-- CAC-LT-2601 CAC-LI-2601 X-XY-4374 l Test l l Gauge l L __ _- _. _ J l

I (3b1) UNCERTAINTY PARAMETERS CALIBRATION TEST GAUGE: WALLACE & TIERNAN SERIES65-120 PORTABLE PENUMATIC CALIBRATOR (REFERENCE #6), or better General Accuracy: *0.1% of full scale (950 inches)

* (.001) (950)

• 0.95 inches

~~ Sg1 = Standard Deviation ~= t (1/3) (.95)

t 0.32 inches l Random Error: Repeatability

• 0.03% of full scale (950 l

inches)

= t (.0003) (950) = t 0.285 inches SG2 = Standard Deviation = i (1/3) (.285)

= i 0.10 inches l

l .

l

Temperature Effects: Maximum is 0.1% of full scale per 180F change from 770F. The instrument loop calibration task requires use of the pneumatic calibrator unit in a plant location where ambient temperatures are usually elevated. Assume ambient at approximately 950F. Therefore, the normal temperature effect = t. (.001) (950) =

• 0.95 inches SG3 = Standard Deviation = * (1/3) (0.95)

= i 0.32 inches Power Supply Voltage: Not applicable Hysteresis: 0.1%'of full scale

= (.001) (950) = 0.95 inches Hg (s) = Hysteresis Loop Half Width = 0.48 inches Deadband: Sensitivity = 0.01% of full scale

= (.0001) (950) = 0.095 inches DG (s) = Deadband Loop Half Width c 0.048 inches CAC-LT-2601: ROSEMOUNT 1153 DIFFERENTIAL PRESSURE TRANSMITTER (REFERENCE #5)

General Accuracy: i 0.25% of calibrated span (192 inc;ies)

t (.0025) (192)

• 0.48 inches ST1 = Standard Deviation = * (1/3) (0.48)

=

• 0.16 inches Random Error: Stability =

• 0.25% of upper range limit (750 inches)

= t (.0025) (750) = t 1.88 inches ST2 = Standard Deviation = * (1/3) (1.88)

=

• 0.63 inches Temperature Effects: For Rosemount range code 5 (0-125 to 0-750

inches H2O):

i (0.75% Upper Range Limit + 0.5% span) per 1000 F ambient temperature change.

= * [(.0075) (750) + (.005) (192)]

t 6.59 inches /100 0F ambient temperature change Post-accident temperature at instrument location peaks at 295 F0 (2250F above normal ambient, therefore, the maximum temperature effect = i (6.59) (2.25)

• 14.83 inches S

T = Standard Deviation = i (1/3) (14.83)

=

• 4.94 inches g - ,--w--.r r- --ga- ~ - .- -, , - -

m - ,

Power Supply Voltage: <.005% of span (192 inches) per volt

= i (.00005) (192) = i .0096 inches / volt Negligible compared to other effects considered

-Hysteresis: Included in general accuracy statement

.Deadband: None CAC-LI-2601: INTERNATIONAL INSTRUMENTS SERIES 1151 INDICATOR (REFERENCE #4)

General Accuracy:

• 1.5% of span (192 inches)

* (0.15) (192)

• 2.88 inches Sri = Standard Deviation = i (1/3) (2.88)

=

• 0.96 inches Random Error: Repeatability = i 2.0 % full scale (192 in.)

i (.02) (192)

• 3.8 inches SI2 = Standard Deviation = i (1/3) (3.8)

=

• 1.27 inches Temperature Effect: Not stated Power Supply Voltage: Not applicable Hysteresis: Not stated Deadband: Not stated (3c1) OVERALL SYSTEM UNCERTAINTY Under normal plant ambient temperature conditions, the standard

._ deviation of the total measurement error is bounded by:

,, S 2 (total . system) = 2S (s) = S 2 (s,b) + H 2 (s) + H(s)

• 0(s) + D2 (s)/2 S(s,b) + SG2 +SG3 +STI + ST2 2+S Il +SI2

= ,/ SG1

~

= / .322 + ,102+ .322 +.162 + .632 + .962 + 1.272

=

/ 3.17 =

• 1.78 PSIG

=

H(s) HG (s) = 0.48 inches

-D(s) =-

Og(s) = 0.048 inches S (total system) = /1.782 + .482 + (.48) (.048) + .0482 /2

=

/3.54 = i 1.88 inches e

,,,,~-,-%.., , . , , . , , , . - . , , --~ ---

s Under maximum accident temperature conditions,at the transmitter location, the. standard deviation of the total measurement error is

-calculated as'follows:

.S(s,b)-='/Sgg 2+3G22+SG32+ST12+ST22+ST32+S Il + S12 2

=:-/.322 + .102 +.322+ .162 + .632 + 4,942 + .962 + 1.272

=

/27.58 =

• 5.25 inches H(s) = Hg(s) = 0.48 inches

=

D(s) Og (s) = 0.048 inches S (total system) = /5.252 + ,482 + (,48) (.048) + .0482/2

/27.82

• 5.27 inches LOOP # 2

- (3a2) BLOCK DIAGRAM i i CAC-LT-2602 CAC-LR-2602 X-XY-4346 l Calibration Test l- -

! Gauge I l_. _ __ _.I

- (3b2) MODULE UNCERTAINTY PARAMETERS CALIBRATION TEST GAUGE: WALLACE & TIERNAN SERIES65-120 PORTABLE PNEUMATIC CAllBRATOR (REFERENCE #6), or better

~

Same range and uncertainty parameters as stated aboye for Loop #1.

Use:

Sgt = t 0.32 inches SG2 =

• 0.10 inches Sg3 =

• 0.32 inches Hg(s) = 0.48 inches DG (s) = 0.048 inches. ,

l

--o,,- e y y- .-y-.- , - , ,---g-,r-..,,.-e em--- ,.e-s-----,--y,y,y- a,-ee - ,e,,

c. ,

CAC-LT-2602: ROSEMOUNT 1153 DIFFERENTIAL PRESSURE TRANSMITTER (REFERENCE #5)

Same range and uncertainty parameters as stated above for LT-2601.

Use:

ST1 = f '6 inches

ST2 =

• 0.63 inches ST3 =

• 4.94 inches CAC-LR-2602: BAILEY CONTROLS SR-1110 RECOR0ER (REFERENCE #3) sineral Accuracy: i 0.5% of span (192 inches)

= * (.005) (192) = 0.96 SR1 = Standard Deviation = * (1/3) (0.96)

= i .32 inches

^ Random Errors: Linearity:

• 0.25% of span (192 inches)

* (.0025) (192)

• 0.48 inches SR2 = Standard Deviation = * (1/3) (0.48)

=

• 0.16 Repeatability =

• 0.1% of span (192 inches)

i (.001) (192)

• 0.19 inches SR3 = Standard Deviation = i (1/3) (0.19)

=

• 0.06 inches Power Supply Voltage: <0.02% of span (192 inches) per volt over the normal supply ran9e of 23-29 VDC = *

(.0002) (192) =

• 0.05 inches / volt Negligible compared to other effects considered.

Hysteresis: 0.15% of span (192 inches)

= ( 0015) (192) = 0.29 inches HR (s) = Hysteresis Loop Half Width = 0.15 inches Deadband: 0.1% of span (192 inches)

= (.001) (192) = 0.19 inches DR (s) = Deadband Loop Half Width = 0.10 inches 1

e

(3c2) DVERALL SYSTEM UNCERTAINTY Under normal plant ambient temperature conditions, the standard deviation of the total _ measurement error is bounded by:

S 2 (total systen) = S2(s) = S2(s,b) + H2(s) + H(s)

• D(s) + D2 (s)/2 S(s,b) = /Sg12 + 3g22+3 G3 +ST1 +ST2 +SR1 +SR2 2+S R3

=

/.322 + .102+ .322+ .162 + .632 + .322 + .162 + .062

=

/._769 =* .88 inches

=

H(s) H(s)+H{s)=0.48+0.15=0.63 g R inches 0(s) = Dg(s) + DR is) = .048 + 0.10 = 0.15 inches S (total system) = / .882 + .632 + (.63) (.15) + .152/2

=

/1.28 =

• 1.13 inches Under maximum accident temperature conditions at the transmitter location, the standard deviation of the total measurement error is calculated as follows: -

S(s,b)=/S gi 2+3 G22+S G3

+S T1 2+ST22+ST32+S R1 +S R2 2+S R3

=/.322 + .102 + .322+ .162 + .632 + 4,942 + .322 + .162 + .062

=/25.17

=

• 5.02 inches H(s) = 0.63 inches D(s) = 0.15 inches S(totalsystem)=)5.022 + .632 + (.63) (.15) + .152/2

= i 5.07 inches (4)'.II.F.1.6 - HYDR 0 GEN MONITORING SYSTEM (HMS) - ACCURACY & PLACEMENT The containment hydrogen (and oxygen) monitoring system consists of two independent, but identical, sampling and instrument systems. The range of the analyzers is 0-30% for hydrogen and 0-25% for oxygen. Only the hydrogen loop calculations are performed here; however, since the corresponding module uncertainties are identical for the hydrogen and oxygen loops in terms of percent of full scale, the oxygen standard deviation may be assumed at 25/30 of that calculated herein for the hydrogen.

m ,, . - . - . , - , ,-.y ,. --

=

-(4a) BLOCK DIAGRAM i l i I Calibration;__:AC-AT/Al-4409_, X-XY-4348 X-XY-4349 CAC-AR-4409 l Gases l l __ l (4b) MODULE UNCERTAINTY PARAMETERS CALIBRATION GASES: " UNION CARBIDE" PRIMARY STANDARD GRADE MIXTURES (REFERENCE #11)

General Accuracy: " Blended gravimetrically on sophisticated electronic balances. Each ' primary' grade mixture is subsequently analyzed by gas chromatography against a gravimetric UCRM, an "NBS" SRM or an "NBS Traceable" CRM. The concentrations determined analytically will agree with the concentrations calculated from the measured we)ghts of the component gases within i 1% relative uncertainty at the ninety-five percent confidence interval.

For the 30% span Hydrogen loop, the calibration span gases used are 9.5% H 2/N2 and 28.0% H 2 accounting f;/N . A conservative or loop uncertaintiesapproach due to to span gas mixture uncertainty is to utilize the higher gas tolerance = i (.01) (28.0) =

• .28% H2 The, S (1/3) (.28) =

• gt.09% = Standard H2 Deviation = i CAC-AT/AI-4409: TELEDYNE ANALYTICAL INSTRUMENTS CONTAINMENT MONITOR 225 CMA (REFERENCE #5)

General Accuracy: i 2.5% full scale (30% H9)

= * (0.25) (30) = t 0.75% H S

T1 = Standard Deviation = *2 (1/3) (0.70)

' i 0.25% ii 2 Random Error: Stability =

• 2.0% full scale (30% H2)

* (.02) (30)

• 0.60% H S T2 = Standard Deviation =2* (1/3) (0.60)

=

• 0.20% H2 l

Temperature Effect: Effect of water vapor in sample on hydrogen indication: The water vapor left in the sample after passing through the analyzer cabinet cooler and dryer still has a minor effect on the hydrogen readings. It is a function of the ambient temperature in the reactor building adjacent to the analyzer cabinet. Refer to the following water vapor correction graph.

140 138 l

~

130 j 125 l 120

! 115 C  ;

g( [ for Hydrogen i a *

k 100 j

.0 /

.o /

0 .1 .2 .3 .4 .5 .6 Requered Subtrocoon from Indstated H, Cone (%)

WaterVapor Correction In abnormal conditions where steam becomes a significant percentage of containment atmosphere (such as relief valves lifting or loss of coolant accident), a major correction factor must be applied to both the hydrogen and oxygen indicated values.

' Since the analyzer system conditions the sample via cooling and drying, the indicated concentrations are dry-basis values, which will be conservatively higher than the actual in containment wet-basis concentrations. The required correction can be calculated from the following instructions and must be applied to both the hydrogen and oxygen indicated concentrations.

1. Match the air / nitrogen expansion pressure with the containment temperature.

Example: At 3200F, the air / nitrogen =

21.6 psia.

O

, - , , ,-.. ,.-n- - - - - , . - . , -

2. Add 15 psi to the containment pressure to obtain the absolute pressure:

Example: If the containment pressure is 30 psig, the absolute pressure = 30

+ 15 = 45 psia.

3. To obtain the wet-basis value inside containment, multiply the dry-basis value obtained by the analyzer times the air expansion pressure found in 1.

divided by the total pressure found in

2. above.

Example: If the hydrogen monitor reads 3.0% hydrogen, the wet-basis reading would be 3.0 x (21.6/45) = 1.4%

hydrogen.

C6. .^ ... .. .; Temperature 'F e,o too 12o 14o iso iso zoo 22o 24o zoo 2so ,soo 32o 34o soo is.o i s.'o " ~ ilo Eo '~ do in n 2Eo "' 23.'o " 2$.o Air / Nitrogen Expansion (PSIA)

Wet-Basis (Steam) Correction .

The above corrections are published in the system Operating Procedure, OP-24, for application when necessary. On that basis, they will not be included in the calculations performed in this report on total system uncertainty parameters.

Poner Supply Voltage: No effect stated

.. Flow Measurement: Flow measurement does not effect the system accuracy. Flow rate, however, would be a factor in calculation of the system response time.

' Transducer / Transmitter Separate: The Teledyne system is conposed of a variety of sub-modules; however, all accuracy and performance specifications are stated by the vendor on a system-only basis. For purposes of this report, the entire Teledyne -

supplied system will be treated as a single module. Uncertainty parameters associated with the external recording loop are defined in the following section and are included in the system uncertainty calculations.

Hysteresis: Not. stated Deadband: - Not stated X-XY-4348: FOXBORO COMPANY SPEC 200 SERIES CURRENT-TO-VOLTAGE CONVERTER MODEL 7 2Al-12V_ (REFERENCE #8)

~

General Accuracy: i 0.25% of output span (30% H2 )

= * (.0025) (30) = * .075% H S y1 = Standard Deviation = *2(1/3) (.075)

= * .0 3% H2 Random Error: Not stated Temperature Effects: t0.5% of output span for

• 50 0F in ambient temperature 0

i (.005) (30)

• 0.15% H2 for i 50 F change. This instrument is located in the main control room and will not be subjected to significant temperature variation. This effect is then considered '-

negligible for purposes of these calcolations.

Power Supply Voltage: i 0.2% of span (30% H2 ) for a i 5% change within normal operating limits of + 15 and -

15 VOC supply. -Negligible compared to other factors considered.

Hysteresis: Not stated Deadband: Not stated X-XY-4349: FOXBOR0 COMPANY SPEC 200 SERIES VOLTAGE-TO-CURRENT CONVERTER MODEL 2AO-VAI (REFERENCE #9)

. General Accuracy:

• 0.5% of output span (30% H2 )

=

t (.005) (30) = * .15% H S

X1 - Standard Deviation =2* (1/3) (.15)

= i .05% H2 R.indom Error: Repeatability = < t 0.1% of input span (30% H2 )

=

• (.001) (30) = t .03% H S

=

X2 = Standard Deviation =2t (1/3) (.03)

• .01% H2 ,

- - - - ,. , . . , . , g , , . , ._c.,%we,%,m,,_% .,,..%, ,_er-, _ , _-.,, , - ,- , , , ~ , . , _ ,

E Temperature Effects: *0.5% of output span for

• 50 0F in ambient temperature 0

i (.005) (30)

• 0.15% H2 for

• 50 F change. This instrument is located in the main control room and will not be subjected to significant temperature variation. This effect is then considered negligible for purposes of these calculations.

Power Supply Voltage: i 0.5% of span (30% H2 ) for a

• 5% change within normal operating limits of +15 and

-15 VDC supply. Negligible compared to other factors considered.

Hysdresis: Not stated Deadband: Not stated CAC-AR-4409: LEEDS & NORTHRUP SPEEDOMAX M MARK II MULTIPOINT RECORDER (REFERENCE #10)

General Accuracy: 10.5% of full scale (30% H 2 ) = * (.005) (30)

= * .15% H2 Sgt = Standard Deviation = * (1/3) (.15)

= * .05% H2 Deadband: 0.25% of full scale (30 % H2 )

= (.0025) (30) = .075% H 2 Deadband Loop Half Width =.038 = .04% H2 (4c) OVERALL SYSTEM UNCERTAINTY The standard deviation of the total measurement error is bounded by:

S 2 (total system) = S2 (s) = S2 (s,b) + H2 (s) + H(s)

• D(s) + D2 (s)/2 S(s,b) =

/SG12+ST12+S T2 +S Y1 2+SX12+SX22+S R12

=

/ .092 + .252 + .20 2 + .032 + .052 + .012 + .052

=

/.117 =* .34 % H2 H(s) = 0 0(S) = .04% H 2 S(totalsystem)=/.342 + 0 + 0(.04) + .04 2/2

=

/.116 i .34% H2

(4d)LSAMPLING-CONSIDERATIONS Each of the two instrument systems is connected to four different sample points from the primary containment (General Electric Mark I). The sample sources are:

- 1) Suppression pool atmosphere

?.) Drywell lower (plant elevation (-) 6')

3)' Drywell mid (plant elevation 50')

4) Drywell head (above reactor well seal, plant elevation 100')

Normal sample lineup is for one system to draw off the suppression pool atmosphera and the other from a drywell source.

(4e) OBSTRUCTIONS Any hydrogen gas that escapes the core and is released from the primary coolant system boundary (either via steam relief valves or coolant system rupture) will become mixed in either the suppression pool or drywell general air space. There are no compartments or barriers in Brunswick's General Electric Mark I containment design that would prohibit or delay such mixing from taking place.

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REFERENCES 1)' Heise Gauge Data obtained from CP&L Test Equipment Room

2) .Rosemount Product Data Sheet:2235, Revised 11/80

- 3) Bailey Controls Manual E12-10, CP&L Foreign Print F.P.-7550

4) International Instruments Series 1151/1251, Bulletin IC-158R-281-3M-S, and clarified via telecon with vendor

5) Rosemount Product Data Sheet 2388, Revised 9/82

6) Wallace & Tiernan Catalog File 650.120, Revised 11/76 17 ) Teledyne' Analytical Instruments, Model 225 CMA Instruction Manual, CP&L Foreign Print F.P.-9541

13) Foxboro Technical Information Bulletin TI 2Al-130, Oct.1977

~

9) Foxboro Technical Information Bulletin TI 2A0-130, Oct.1977

10) Information obtained via telecon with vendor

-11) Linde-Union Carbide Catalog L-3396E, Pg. 59, printed 1/82 '

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