ML20129H872
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8 Vogt Iloctric Genersting Plant 14005-1 NUCL8l.AT1 OPERATIONS movision AB.
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SHUTDOWN MARGIN CALCULATIONSM,4NX_ SE7 N0, O
l.0 PURPOSE i
1.1 The purpose of this procedure is to provide methods for determining SHUTDOWN MARGIN to verify it is greater than the limits of Technical Specifications 4.1.1.1.1
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or 4.1.1.2 as applicable.
1.2 Verification of SHUTDOWN MARGIN is required:
a.
When in Modes 1, 2, 3, 4 or 5 within one hour after detection of an inoperable Control Rod and each 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> thereafter while the control Rod is l
~
b.
Prior to initial operation above 5% Rated Thermal p Power after each f el loading.
l When in Modes 3, 4, or 5 at least once per 24 c.
hours.
1.3 This procedure also provides instructions for determining the Kaff of the reactor in its present state or predicting its value at future plant conditions.
2.0 APPLICABILITY This procedure is applicable in Operational Modes 1, 2, 3, 4, 5 and 6.
3.0 PRECAUTIONS AND LIMITATIONS 3.1 Zenon Worth provided by reference curves assumes equilibrium conditions prior to shutdown.
If plant was in a transient condition, obtain Xenon Worth from plant computer or calculate Xenon Power using the form providad by PTDB TAB 1.4.3.
3.2 If boration or dilution evolutions are or have been occurring, care shall be taken to ensure representative RCS boron samples are used for chemical analysis.
3.3 No credit is taken for Samarium reactivity since the negative reactivity introduced by Samarium 149 buildup is offset by an equal posits.ve reactivity introduced by the buildup of Plutonium 239.
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VEGP 14005-1 4
2 of 8 4
4.0 PREREQUISITES AND INITIAL CONDI,T, IONS NONE
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5.0
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INSTRUCTIONS i
Complete the appropriate Data Sheet (s) corresponding to plant conditions.
6.0 ACCEPTANCE CRITERIA 6.1 Modes 1 and 2 - CALCULATED SHUTDOWN MARGIN shall be greater than or equal to 1.3% delta K/K.
6.2 Modes 3, 4 and 5 - CALCULATED SHUTDOWN MARGIN shall be i
greater than or equal to REQUIRED i
Shutdown Margin specified by Technical Specification 3.1.1.2 Figures 3.1-1 or 3.1-2.
.i 6.3 Mode 6 - CALCULATED Kaff shall be less than or equal to I
0.95.
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VEGP 14005-1 4
3 og g 7.0 EVALUATION AND REVIEW 7.1 Results obtainwd through performance of this procedure
. meet ACCEPTANCE CRITERIA of Section 6.0.
[
YES
[ ]
NO 7.1.1 If NO was checked, insnediately INITIATE and CONTINUE boration at greater than or agual to 30 gym of a solution containing greater than or equal to 7000 ppm boron or ecuivalent until the required Shutdown Margin is restorec and NOTIFY the Unit Shift Supervisor (USS),
7.1.2 Comments (include any abnormal conditions and corrective actions taken):
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USS notified of Test Completion and Results W/Y' /No-T-7 / n. t /
Initial Date Time Test Completed By:
M/,)
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signature -
Date Time Supervisory Review:
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/ /-7#8/ N' 1#
signature Date Time
8.0 REFERENCES
8.1 Technical Specification 3.1.1.1, 3.1.1.2 and 3.9.1 8.2
" Plant Technical Data Book END OF PROCEDURE TEXT
enocacuas No.
navision v4ce no VEGP 14005-2 4
4 of g Sheet 1 of I s
l DATA SHEET 1 SRUTDOWN MARGIN CALCULATION-REACTOR CRITICAL DATE TIME CURRENT CONDITIONS REACTIVITY BALANCE
/
la REACTOR POWER 13 POWER DEPECT
+
PCM (PTDB TAB 1.1) 2A BORON CONCENTRATION PPM 23 CURREhT ROD WOR 3A ROD POSITION STEP 3 (PTDB TAB 1.5.1
+
PCM BANE 38 ASSUMED STU 10D WORTH
+-
PCM 4A MOST REACTIVE R0D WORTE PCM (value in
)
(PTD5 TAS 1.5.2) 45 ACTUAL STUCK ROD 5A NUMBER OP STUCK RODS WORTE /
(4At%s5A)
+
ROD WORTE
)
B TAB 1.5.2)
PCM e
r
/
VERIPT IC IS A NEGATIVE IC SUN 15 thru 55 ()
PCM INITIAL CALCULATED SEUTDOWN MARGIN
% delta K/E (Divide absolute value of 1C by 1000)
REQUIRED SEUTDOWN MARGIN 1.3 % delta K/E (Tech Spec 3.1.1.1) 4 COMPLETED BT
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SIGNAIvaE
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DATE
/
TIME 4
Miocacuna NO.
navissoN PAGE NO.
'y YEFG 14005-1 4
5 of 3
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Sheet I of 1 DATA SEEET 2 SEUTDOW MARCIN CALCULATION-REACTOR SUBCRITICAL USING PREVIOUS CRITICAL DATA
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CURRENT / PROJECTED CONDITION - Tav8 > 557*F DATE TIME MODE DATE TIME OF LAST SRUTDOW PUMPS CGiiLITIONS PRIOR TO SuutpOW REACTIVITY AALANCT 1A REACTOR POWER I
la POWER DEFECT (FTDB TAB 1.1)
+
PCM 2A BORON CONCENTRATION PPM 23 BORON WORTE (FTD5 TAB 1.
- 1) +
PCM 3A IIN0N POWER 35 XDON WDR (LA IF EQUILIBRIUM)
(FTDB 1.4.2) +
PCN 4A 200 POSITION STEPS 45 TE TAB 1.5.1) +
PCM BANE T
CURRENT /PROJEd mu CONDITIONS
)
I IC SUN 18 thru 45
+
2C ISO TEMP DEFE:T2 f
(PTD5 TAS 1.2)
+ N/A PCM J
6A BORON CONCENTRATION PPIf 3C BORON WORTE (FTD5 TAB 1.3.1) -
PCM 7A NUMBER OF E0018 4C IEEON WORTE FRON LAST SEUTDOWN (FTDB TAS 1.4.1 PCM 5C TOTAL ROD WORTE (FTDs TAs 1.5.2) -
PCM 8A MOST REACTIVE 200 WORM PCM 6C ASSUMID STUCE ROD (PTDS TAB 1.5.2)
WORTE
+
PCM (value in SA) 9A NUMBER OF STUCE 7C ACTUAL STUCE RCD WORN
+
VERIFT ID IS A NUMBER 1D 81281C thru 7C ( )
PCM '
g CALCULA SEUTDOW M&RGM Zdelta E/E l
(Divida absolute value of ID by 1000) i REQUIRED SEUTDOWN MARGIN
% delta E/E (Tech S ec 3.1.1.2 Fig 3.1-1 or 3.1-2)
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Ct31FLITED BT
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31GRhumE
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DATE
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'IAHL l
1 mocamses no-LeviseoM pace no, i
TECF 14005-1 4
6 of a Sheet 1 of 1 MTA sun 3 ie i
Kaff CALCULATION USING PREVIOUS CRITICAL DATA
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CURRENT / PROJECTED CONDITIONS - Tavs > 557'P
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I DATE TIME DATE TIME OF LAST SNUTDOWN f
I CONDITIONS PRIOR TO SNUTDOWN REAdiVITY BALANCL['
la REACTOR POWER 15 POWER DEFECT j
(PTDS TAB 1.1)
,,PCN l
2A BORON CONCENTRATION PPM 23 BORON letTN (PTDS TAB 1.3 )+
PCM j
I 3A IENON POWER I
3B IENON WDR j
(1A IF EqdILIBRIUN)
(PTD3 1.4.2) +
PCN i
i 4A RCD POSITION STEPS 43 R00 l
PTD TAB 1.5.1) +
PCN naNE j
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l CURRENT /PRG.is6 4au waiv1Tavsi
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j N
C p 18 thru 43
+
PCN i
i 6A favg DEG 2
ISO TBF DEFECT (PTDS TAB 1.2)
+ N/A PQt l
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7A BORON CONCENTRATION PPM 3C BORON WORTN (PTDB TAB 1.3.1) -
PCN aA NUM ER OF NOURS IINON WDRTN (PTD5 TAB 1.4.1) -
PCM l
PROM IAST SED 1DOWN i
9A R e POSITIce 8
SC R W WORIE (PTDS TAB 1.5.1) -
PCN i
i BANE
/
VERIPT 1D IS A NBGATIVE ID SUN IC thru SC ()
PCN i
N s
i 2D DIVIDE 19 by 100000 l-1 1
,,,P.
1-(value in 2D) 1+(
)
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/
sIGNArvaE
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DATE
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TIME e
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VEGP 14005-1 4
7 of g Sheet 1 of 1 DATA SHEET 4 SHUTDOWN MARGIN, Eeff CALCULATION USING CRITICAL SORON MODE l~
DATE/ b-W TIME /0 7.c PUMPS # / m_;/
..u.er 5:555RRele/ PROJECT CONDITIONS REACTIVITY BALANCE
--r LA RCS TEMPERATURE
/[> 9 DEC P 2A RC8 BORON 15 RCS
-7 N Y9 PCM CONCENTRATION
/NT PPM BORON WORTE (PTDs TAB 1.3.1)
[-['_-PPN
/,'f(, C7Y
/' 3 '
23 CRITICA1.
,,~, 2 PCM 3A CRITICAL 30RON CONCENTRATION w.4 Botoll WORTN w.w
' ~# "
(PTDS TAB 1.3.2)
' ' F '8 7 (PTDS TAB 1.3.1)
/
4A IENON POWER Nf X
38 IENON WORTE
-O PCN (Ra POWER AT TRIP (PTDB TAR 1.4.1)
IP EQUILIBRIUN)
SA NUMBER OP l
sTUCE RODS O
6A WORTE OP ICST 48 ACTUAL STUCE
+ (-
PCM R5 ACTIVE ROD ROD WORTE (PTDs TAB 1.5.2) 8%
PCN (5A times 6A)
/)
IC Stat 13
(-) VC/ f PCN 4
VERIPT IC IS A NEGATIVE NUMBER M//d' thru 43 INITIAL I
2C DIY DE 1C l-by 100000
-o,0 M J' 4
CALCULATED S WTDOIN MARGIN
+ f/,0/f Zdelta E/E
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(Divide absolete value of 1C by 1000)
REQUIRED SEDTDOIN MARGIN
+ 3 47-Edelta E/E (Tech Spec 3.1.1.2 FIG 3.1-1 or 3.1-2) 1 1
- 0. %
i Eaff.
1-(value in 2C) 1+(d,0W 'f)
REQUIRED Esif (Tech Spec 3.9.1 Mode 6 only)
S 0.95 2VC)
_ /A% gr
/A m CGIPLETED BY
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'PROCEDUAENO.
F EvlS40N PAEE NO.
FEGP 14005-1 4
3 og g je.
Sheet 1 of 1 DATA SHEET 5 4
Esff CALCULATION USING CRITICAL BORON PROJECTED CONDITIONS Tavs 1557'T DATE TIME MODE
(
/
CUnergT/ PROJECT D CONDITIONS REACTIVITY SAL 4NCE
)
1A RCS TEMPERATURE DEG Y
[
i j
2A RCS s0RON Pru 1:
RCs PCu CONCENTRATION BORON WD (PTDS 1.3.1) l 3A CRITICAL BORON PPM 23 CR CAL
+
PCM CONCENTRATION 5
WORTE (PrDs TAs 1.3.2)
(
s TAs 1.3.1) 1 3B WORTE j
4A IENW POWER I
PCM b
(PTD5 TAB 1.4.1)
(as P0uER AT TRIP) i IF EquzLIaRInu)
/
4{
TOTAL R(B
+
PCM WORTE i
(PTDB TAB 1.5.2)
I
\\
PCM l
54 ROD POSITION ST12 58 ACTUAL ROD voRTE l
(PTDB. TAR 1.5.1) s 6A WORTE OF 198T 6B STUCK R(B UCRTE Pm t
REACTIVE R0D
/
AssoMED IN 2a (PTDB TAB 1.5.2)
/PCN (value in 6A) 1C SIRC 13
()
PCM YERIPT 1C IS A NEGATIVE thru 65 M
2C DIVIDE IC l
by 100000 4
1 1
Estr =.
=
=
l 1-(val in 2c) 1+(
)
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CoseLETED
/
/
sIssuvas
/
DATE
/
TIrw NOTE:
If rods are la asa-sequential position for test purposes, modify the above data as follows 1.
Describe rod configuration in 5A.
2.
Eater worth of withdrawn rods in 45.
3.
Inter sero in 55.
_