ML20040D854
| ML20040D854 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 01/27/1982 |
| From: | Zimmerman S CAROLINA POWER & LIGHT CO. |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| References | |
| BC-A-4, NUDOCS 8202020319 | |
| Download: ML20040D854 (36) | |
Text
_ _ _ _ _ _ _ _ _ _ _ _ _
CD&L Carolina Power & L!ght Company N
g January 27, 1982
[
E C Sit'2 D 9
File: BC/A-4 D'
L FEB.t 199y y E % %ec8pm T
Office of Nuclear F2 actor Regulation
/,
/
ATTN:
Mr. D. B. Vassallo, Chief g
4 Operating Reactors Branch No. 2
~
United States Nuclear Regulatory Commission Washington, D.C.
20555 BRUNSWICK STEAM ELECTRIC PLANT, UNIT NOS.1 AND 2 DOCKET NOS. 50-325 AND 50-324 LICENSE NOS. DPR-71 AND DPR-62 IMPLEMENTATION OF ODYN CODE
Dear Mr. Vassallo:
SUMMARY
Mr. D. G. Eisenhut's November 4,1980 letter stated that all operating BWRs with General Electric (GE) reload licensing analyses must have the limiting transients recalculated with the ODYN transient code by January 1982, even if a reload submittal has not been made.
In a June 30,1981 letter, Carolina Power & Light Company (CP&L) advised the NRC that, based on the scheduled refueling date of April 1982, an ODYN reanalysis for Brunswick-1 would be applicable to only the last three months of the current operating cycle and would represent redundant analyses since the unit had already been licensed with the REDY code.
Accordingly, CP&L requested that Brunswick-1 be permitted to complete Cycle 3 using the existing REDY code analysis for which GE had presented evidence demonstrating that the REDY code is, under specified conditions (ODYN Option B), more conservative than the ODYN code.
Based on operating performances of Brunswick-1 and Brunswick-2 to date, the refuelings of Unit 1 and Unit 2 are now scheduled to begin September 1982 and June 1982, respectively.
DISCUSSION Mr. T. A. Ippolito's December 22, 1981 letter and Mr. D. G.
Eisenhut's December 29, 1981 letter stated that if scram time test data is bounded by the ODYN Option B scram time distribution, the use of ODYN Option B calculations would be conservative in the area of concern; therefore, a delay in implementing the ODYN code analyses until the next operating cycle would be considered reasonable and acceptable.
CP&L has obtained the ODYN Option B criteria from GE and has completed calculations of the mean scram times for both Brunswick-1 and Brunswick-2. This information demonstrates that the data from Brunswick-1, Cycle 3 and Brunswick-2, Cycle 4 (the current cycles) arc in compliance with the GE criteria for the use of ODYN Option B.
8202020319 d
PDR ADOCK 05000324
. Box mi. nam a c. m2 0
P pg
.z -
1 it
The scram time test data for Brunswick-1, Cycle 3 and Brunswick-2, Cycle 4 are attached. The Brunswick-1 mean scram' time was calculated using' three scram periodic tests that have been run in Cycle 3.
A total of 167 control rods were tested, resulting in a mean scram time for Unit 1 of 0.811 seconds.
Since this time is less than the' Option B scram time limit specification of 0.922 seconds, the Option B criteria are satisfactorily met.
The Brunswick-2 mean. scram time was calculated using five scram periodic tests that have been run in Cycle 4.
A total of-177 control rods were tested, resulting in a mean scram time for Brunswick-2 of 0.838 seconds.
Since this time is less than the Option B scram time limit specification of 0.919 seconds, the Option B criteria are satisfactorily met.
A copy of these calculations is attached.
CONCLUSION Since this data is satisfactory, CP&L plans to complete the current operating cycles _ of Brunswick-1 and Brunswick-2 without performing i
reanalyses using the ODYN code.
Subsequent. reload analyses for each unit will be performed using the ODYN code.
If you should require any addi-tional information, please contact my staff.
Yours very truly, fk{f S.
. Zimmerman Manager Licensing & Permits WRM/1r (7798)
Enclosures cc:
Mr. J. P. O' Reilly (R-II) 7
+
l l
Page 1 of 3 ODYN OPTION B SCRAM TIME SURVElLLANCE REQUIREMENTS 33U-i Followtn3 Bot Test 0
Notch "x" = Notch which corresponds most closely to 20~ insertion of rods = _36, 8
The mean scram time, 'C ave, for the scram data generated to date in the cycle is determined by:
R E N j 'Ci N/A sec
{"N ave i
ini where:
n = number of surveillance tests performed to date in the cycle. (Including BOC) i
=
'C5 = average scram time to notch x for surveillance test i.
N = nu,ber of rods tested in surveillance test i.
g 13 7 therefore, N
=
.=>j
.E N r = ( 137 0.810 =
t ii. u2 5g iH.622 r
=
=
sec ave 0.815 937 e
The Option B scram time limit specification, T, is determined as follows:
B 1/2
+1.65f',l
'C
= /2
.O B
( {Nj/;
\\ a.i where: f4 = mean value for statistical scram time distribution to notch x, (Table 1) 0.834 sec
=
0 = standard deviation of above distribution (Table 1)
= 0.059 sec N)= number of rods test at B0C (All active rods).
13"7
=
1/2 I3l U
0.059 O.931 sec B*
Dg34
+ 1.65 (mj
Page 2 of 3 BSEP-1 0
Test the following for trueness:
ave B
Y 0.Bl5 5 D.131 YES i
If yes, the MCPR for each pressurization event is determined from Option B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
=M R
adjusted 0ption +
MCPR0ption - MCPPD tion g
,g B
A B
B A
where: U = present tech spec scram time reouirements g
to notch x.
(Table 1 or Tech Spec)
=
sec 0 (From the cycle specific reload license supplement) 7X7 8X8 8X8R P8X8R (1) Non-pressurization Maximum Maximum Maximum Maximum events MC PR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
- k A
g A
A (2) TT/LR wo BP B=
M R=
MCPR =
M R"
B B
B MCPR MCPR l+
=
=
=
=
adj adj adj adj J'
MCPR =
MCPR =
MCPR =
- Y g
g A
- B B
B" B"
=
=
=
adj adj adj adj.=
f t use only if (>K 8
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
~.* OLMCPR :
7
a Page 3 of 3 BSEP-1 TABLE 1
- BOC, l
ODYN Option B Scram Time Conformance Requirc=ents Scram Times From De-Energization of Scram Pilot Valve Solenoid (Sec.)
Option B Standard 1967 A/S*
Mean Deviation Tech Spec Curve Rod Inserted to Notch:
u o
T A 39 Pickup 0.671 0.050 0.838 Dropout 0.688 0.052 0.862 38 Pickup 0.723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056 0.988 Dr6 pout 0.797 0.057 1.013 36 Pickup Q
Q
- 1. 0f '.
Dropout 0.852 0.060 1.089 4
- Note:
67A = 67B in these notch positions O
O
-o w.
4.4-,
Ao-
=ws e-*-w--
~~ *=
___m_.-
Page 1 of 3 DEDI ODYN OPTION B SCRAM TIME SURVEILLRNCE REQUIREMENTS Following 11/ s / so rest 0
Notch "x" = Notch which corresponds most closely to 20"; insertion of rods =
3(o 8
The mean scram time, t ave, f r the scram data generated to date in the cycle is determined by:
R E Njri U
sec 0.815
["N ave i
=i where:
n = number of surveillance tests performed to date in the cycle. (Including B0C)
=.
2.
E = average scram time to notch x for surveillance test i.
j N = number of rods tested in surveillance test i.
g therefore; Nj=
137 + 1(o = 153
,, i - i E N t = (137 D.%15) + (l(, 0.780 ~- 124. 2.7ci jj i-i I24 279 r
sec
=
=
0.812 ave 15 3 0
The Option B scram time limit specification, T, is determined as follows:
B r=p+i.6s[EN 9
.o 3
i i
l
\\ :=i I
where: f4 = mean value for statistical scram time distribution to notch x.
(Table 1)
= 0. B34 sec 0 = standard deviation of above distribution (Table 1) 0.059 sec
=
N = number of rods test at BOC (All active rods).
j l37
=
1/2
+ 1.6s I37 C
- b. 0 5'l
- 0. 'i Zl, sec B*
0.834 153 j
Page 2 of 3 BSEP-1 II-S-Bo e
Test the following for trueness:
+
0.B12 5 D.92(o YES a ve B
i If yes, the MCPR for each pressurization event is determined from Option B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
r
-t N
= MCPR adjusted 0ption
- MCPR0ption - MCPR0ption g
,g B
A B
B A
where: U = present tech spec scram time recuirements g
to notch x.
-(Table 1 or Tech Spec)
=
sec I (From the cycle specific reload license supplement) 7X7 8X8 8X8R P8X8R (1)Non-pressurization Maximum Maximum Maximum Maximum events MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
- A g
A A
MCPR "
B B
B" B"
MCPR MCPR l+
MCPR MCPR
=
=
=
=
adj adj adj adj J'
MCPR =
MCPR =
MCPR =
R=
}t A
A A
R=
MCPR =
- B B
B B
MCPR.=
=
=
=
adj adj adj adj f
i use only if t
>K 4
The Operating Limit MCPP, is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
.*. OLMCPR :
Page 3 of 3 BSEP-1 TABLE 1 11 5-80 ODYN Option B Scram Time Conformance Recuirements t
Scram Times Fro: De-Energization of Scram Pilot Valve Solenoid (Sec.)
Option B Standard 1967 A/S*
Mean Devia t ion Tech Spec Curve Rod Inserted to Notch:
u o
T A 39 Pickup 0.671 0.050 0.838 Dropout 0.688 0.052 0.862 38 Pickup 0.723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056 0.988 Dr6 pout 0.797 0.057 1.013 36 Pickup 1.064 Dropout 0.852 0.060 1.089
- Note:
67A = 67B in these notch positions O
Page 1 of 3 ODYN OPTION B SCRAM TIME SURVEILLANCE REQUIREMENTS BSEP - 1 Fo itowing 3 /2o/81 Test 8
Notch "x" = Notch which corresponds most closely to 20~ insertion of rods =
3(o 8
The mean scram time, D ave, for the scram data generated to date in the cycle is detennined by:
E Njri T ave O.Bl2. sec ENi a-i where:
n = number of surveillance tests performed to date in the cycle. (Including BOC)
=.
3 T = average scram time to notch x for surveillance test i.
j N = nu,ber of rods tested in surveillance test i.
g therefore; Nj=
M + Ib + I4 = !@
. =i
.EN t'5 = (13'1 0.815) + (II 0.'180 + (14 0.H 5) ~
5 135.4D9
/.
r
- 0. g g sec ave 8
The Option B scram time limit specification, T, is determined as follows:
B 1/2 I,
_ 'l
'C
= J2 + 1.65 0
B
(.E"i) l where: /4 = mean value for statistical scram time distribution l
to notch x.
(Table 1) 0.634 sec
=
0 = standard deviation of atove distribution (Table 1)
= 0. 059 sec N = number of rods test at B0C (All active rods).
j
\\3'l
=
1/2
+ 1.65 [ '137 U
D.osa D.922 sec
=
B" D.B34
\\*)
l i
Page 2 of 3 BSEP-1 0
Test the following for trueness:
+
- 0. Bit 5 0.922 YES ave B
If yes, the M*,PR for each pressurization event is determined from Option B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
r
- t-M R
= M PR adjusted 0ption +
MCPR0ption - MCPR0ption g
,g B
A B
B A
where: U = present tech spec scram tirre reauirements g
to notch x.
(Table 1 or Tech Spec)
=
sec e (From the cycle specific reload license supplement) 7X7 8X8 8X8R PBXBR (1) Non-pressurization Maximum Maximum Maximum f4ximum events MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
M R*
A g
A A
(2) TT/LR wo EP
=
M R"
E" B
B B
B" MCPR MCPR l+
MCPR MCPR
=
=
=
=
adj adj adj adj J'
MCPR =
MCPR =
MCPR =
M R=
}t A
A A
R" MCPR =
=
B B
B g
MCPR.=
=
=
=
adj adj adj adj
[
t use only if (>K 4
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8XER
/. OLMCPR :
o s.
Page 3 of 3
~
x BSEP-1 TABLE 1 3 20 - %\\
~
s_.
{.
ODYN Option B Scram Time Confomance Require =ents
~...
s,
'y..
~
~
Scran. Times From De-Energization of Scra: Pilot Valve Solcaoid (Sec.)
Opt ion B Stand rd 1967 A/S*
3
,Mean Deviat ici. '
Tech Spec Curve RN Inserted to Notch:
u o
-tA 39 Piq'rgp '
0.671 0.d50
'O.838 b.052 Dropeut 0.688 9.862 s
38, Pickup.
- 0. 7 ?. 3 0.054
- 0.911 s
s 03055 0.937 Dropout
- 0. 7y.1 s
3 37 Pickup O.778 0.056 0.988 Dr6 pout 0.797 0.057 1.013 E36 Pickup 1.064 Dropout 0.852 0.060' 1.089
\\
- Note:
67A = 673 in these notch positions 6
BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 1 SCRAM TIME TESTING BEGINNING OF CYCLE (BOC) 3 20% INSERTION 20% INSERTION ROD NUMBER TIME (SEC.)
ROD NUMBER TIME (SEC.)
02-19 0.800 18-43 0.800 02-23 0.900 18-47 0.850 02-27 0.783 18-51 0.750
.02-31 0.850 22-03 0.750 02-35 0.733 22-07 0.750 06-11 0.800 22-11 0.817 06-15 0.783 22-15 0.817 06-19 1.367 22-19 0.817 06-23 0.767 22-23 0.817 06-27 0.817 22-27 0.800 06-31 0.800 22-31 0.917 06-35 0.750 22-35 0.867 06-39 0.850 22-39 0.850 06-43 0.733 22-43 0.767 10-07 0.767 22-47 0.800 10-11 0.767 22-51 0.800 10-15 0.817 26-03 0.783 10-19 0.817 26-07 0.783 10-23 0.867 26-11 0.817 10-27 0.783 26-15 0.650 10-31 0.767 26-19 0.950 10-35 0.817 26-23 0.767
.10-39 0.800 26-27 0.817 10-43 0.833 26-31 0.867 10-47 0.767 26-35 0.817 14-07 0.850 26-39 0.833 14-23 0.850 26-43 0.833 14-27 0.783 26-47 O.833 14-31 0.867 26-51 0.783 14-35 0.850 30-07 0.817 14-39 0.783 30-11 0.800 14-43 0.850 30-15 0.817 14-47 0.800 30-19 0.867 18-03 0.750 30-23 0.850 18-07 0.800 30-27 0.900 18-11 0.767 30-31 0.883 18-15 0.867 30-35 0.883 18-19 0.800 30-39 0.850 18-23 0.783 30-43 0.767 18-27 0.833 30-47 0.733 18-31 0.850 30-51 0.800 18-35 0.800 34-03 0.750 18-39 0.833 34-07 0.817
BRUNSWICK STEAM ELECTRIC PLANT,' UNIT NO. 1 (CONT'D)
SCRAM TIME TESTING BEGINNING OF CYCLE (BOC) 3 20% INSERTION
.20% INSERTION ROD NUMBER TIME (SEC.)
ROD NUMBER TIME (SEC.)
34-11 0.767 50-27 0.817 34-15 0.900 50-31 0.783 34-19 0.850 50-35 0.733 34-23 0.850 38-15 0.850 34-27 0.867 30^03 0.867 34-31 0.850 14-11' O.850 34-35 0.833 14-15 0.633 34-39 0.817 14-19 0.800 34-43 0.800 34-47 0.833 34-51 0.750 38-07 0.767-38-11 0.783 38-19 0.767 38-23 0.850 38-27 0.850 38-31 0.800 38-35 0.833 38-39 0.867 38-43 0.767 38-47 0.817 42-07 0.817 42-11 0.800 42-15 0.783 42-19 0.867 42-23 0.850 42-27 0.817 42-31 0.817 42-35 0.783 42-39 0.850 42-43
-0.767 42-47 0.800 46-11 0.783 46-15 0.833 46-19 0.767 46-23 0.800 46-27 0.783 46-31 0.850 46-35 0.767 46-39 0.800 46-43 0.833 50-19 0.700 50-23 0.767 4
+--y e
.m_
.~.. _...
- ~
i BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 1 SCRAM TIME TESTING 4
NOVEMBER 5, 1980 e
20% INSERTION ROD NUMBER TIME (SEC.)
26-39 0.717 10-15 0.850 26-15 0.817 02-35 0.717 10-39 0.817 22-27 0.817 14-27 0.833 26-39 0.750 02-19 0.767 42-39 0.850 42-15 0.800 34-51 0.733 50-35 0.717 i
38-27 0.833 50-19 i
0.700 30-27 0.900 i
l 1
s I
k 4
.m-e
?**
t y.
-p..pw e y 9
3
-et ayow a
y
--g e.
w
.ee*
y e
s BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 1 SCRAM TIME TESTING MARCH 20, 1981 20% INSERTION-ROD NUMBER TIME (SEC.)
26-51 0.767 10-43 0.767.
18-43 0.800 34-43 0.800 02-27 0.783 1
10-27 0.800 42-27
-0.850 l 27 0.800 10-11 0.783 i
18-11 0.783 34-11 0.800 42-11 0.800 26-03 0.733 2C-35 0.817 f
3 4
a 9
1 Y
h 7
rc s
g r
m r-+-
s
+
s.,--e e-n
--w
--,w,.-,
e,
--,, g.mw s-
~
w
Page 1 of 3 ODYN OPTION B SCRAM TIME SURVEILLANCE REQUIREMENTS 3SEP-2 Follown BOC Test 8
Notch "x" = Notch which corresponds most closely to 20~ insertion of rods =
3(o t
e The mean scram time, U ave, f r the scram data generated to date in the cycle is detemined by:
.E N j t j U
g/4 sec
=
=
ave
[Ni i=i where:
n = number of surveillance tests performed to date in the cycle. (Including B0C) i
=
7 = average scram time to notch x for surveillance test i.
5 N = nut.ber of rods tested in surveillance test i.
g therefore; [ Nj=
13b
,,i=i i=> j j = (i%
- 0. B46 ) 2
[Nt 115. 015 C
O.B4 G sec ave g34 0
The Option B scram time limit specification, ~7J, is determined as follows:
B z
= p 1.ssf. m ) 1/2 i
.o g
l ENi /
l
\\ i->
l where: /4 = mean value for statistical scram time distribution to notch x.
(Table 1) l
- 0.%34 sec 0 = standard deviation of atove distribution (Table 1) 0.059 sec
=
N = number of rods test at BOC (All active rods).
j 1%
=
1/2 B
- 0.B34
+ 1.65 13 6 U
oog o,q 33 sec
=
( 13 6
)
Page 2 of 3 BSEP-2 BO C, e
Test the following for trueness:
+
0.846 5 0.931 Y3 ave B
f If yes, the MCPR for each pressurization event is determined from Option B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
U ave ~ DB
\\
= MCPR adjusted 0ption +
MCPR0ption - "
Optionf g
,g B
A B
B A
where: U = present tech spec scram time reouirements g
to notch x.
(Table 1 or Tech Spec)
=
sec 9 (From the cycle specific reload license supplement) 7X7 8X8 8X8R P8X8R (1) Non-pressurization Maximum Maximum Maximum Maximum events MCPR =
MCPR =
MCPR =
MCPR =
- A A
A*
'A" (2) TT/LR wo BP MCPR
- B B"
B" B"
=
=
=
=
adj adj adj adj
[
MCPR =
MCPR =
MCPR =
- k A
g A
R" B
B B"
=
=
=
adj adj adj adj.=
f i use only if (>K 4
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
.. OLMCPR :
W
o Page 3 of 3 BSEP-2 TABLE 1 gg ODYN Option B Scram Time Conformance Pecuirements Scram Times From De-Energization of Scram Pilot Valve Solenoid (Sec.)
Option B Standard 1967 A/S*
Mean Deviation Tech Spec Curve Rod Inserted to Notch:
u o
tg 39 Pickuo 0.671 0.050 0.838 Dropout 0.688 0.052 0.862 38 Pickup 0.723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056 0.988 Dr6 pout 0.797 0.057 1.013 36 Pickup 1.064 Dropout 0.852 0.060 1.089
- Note:
67A = 67B in these notch positions G
e
+ - - -,, - --
.-a.--
--w.
Page 1 of 3 ODYN OPTION B SCRAM TIME SURVEILLAtlCE REQUIREMENTS BSE?- 2 Followcn3 z/s/al tea f
8 Notch "x" = Notch which corresponds most closely to 20'; insertion of rods =
3G t
0 The mean : cram time, D ave, for the scram data generated to date in the cycle is determined by:
R E Njrj U
0.84G Sec
=
{"N ave 3
i=i where:
n = number of surveillance tests performed to date in the cycle. (Including BOC) 1
=
Tj = average scram time to notch x for surveillance test i.
nut,ber of rods tested in surveillance test i.
N
=
g illo + 14 = ISO therefore; N
=
j
,imi E N r = (136 0.B4Q + (14
- 0. B0'7) 2 126.316
$j i=i C ave "
O.B41 sec 0
The Option B scram time limit specification, T, is determined as follows:
B r
= p + 1.es [,9 } *. o 3
\\ E "i )
\\ i=i i
where: fl,= mean value for statistical scram time distribution to notch x.
(Table 1) 0.B34 sec
=
0 = standard deviation of above distribution (Table 1) 0.05c) sec
=
N)= number of rods test at B0C (All active rods).
13(o
=
1/2 i
E 0.059 0. 'W1 sec
+ l 65
=
=
B 0.834 Q \\GO
)
BSEP-2 0
Test the following for trueness:
~ 8~ 8I f
ave B
0.842. 50.%7 YES t
If yes, the MCPR for each pressurization event is determined from Option B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
U ave-D C I
M R adjusted Option +
MCPR0ption - MCPR0ption/
g
,g B
A B
B A
where: U = present tech spec scram time reouirements g
to notch x.
(Table 1 or Tech Spec)
=
sec 9 (From the cycle specific reload license supplement) 7X7 8X8 8X8R P8X8R (1) Non-pressurization Maximum Maximum Maximum Maximum events MCPR =
MCPR =
MCPR =
MCPR =
- E=
MCPR =
- Y A
A A
MCPR =
MCPR "
B B
B B
MCPR MCPR l+
=
=
=
=
adj adj adj adj J'
MCPR =
MCPR =
MCPR =
- k' g
g A
MCPR =
MCPR =
M R"
B B
B B
=
=
=
adj adj adj adj.=
f t use only if (>K 4
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
/. OLMCPR :
O
o Page 3 of 3 BSEP - 2 TABEI 1 2-8-B1 l
ODYN Option B Scram Time Conformance Recuire=ents Scram Times From De-Energization of Scram Pilot Valve Solenoid (Sec.)
Opt ion B Standard 1967 A/S*
Mean Deviation Tech Spec Curve Rod Inserted to Notch:
u o
T 39 Picku p 0.671 0.050 0.838 Dropout 0.688 0.052 0.862 38 Pickup 0.723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056 0.988 Drbpout 0.797 0.057 1.013 36 Pickup 1.064 Dropout 0.852 0.060 1.089
- Note:
67A = 67B in these notch positions S
Page 1 of 3 ODYt1 OPT 10fl B SCRAM TIME SURVEILLANCE REQUIREMENTS BSEP - 2.
Fo6tn3 7/2Blai Tea 8
Notch "x" = Notch which corresponds most closely to 20~ insertion of rods =
3G 8
The mean scram time, D ave, for the scram data generated to, date in the cycle is detemined by:
.E Njtj U
- O.g4g sec E"N ave i
i=1 where:
n = number of surveillance tests performed to date in the cycle. (Includirg BOC) 3 r; = average scram time to notch x for surveillance test i.
N = nuTber of rods tested in surveillance test i.
3 R
therefore; E N. => j =13b + I4 + I4 = llo4 E n r5 = (136 B.%4M + (14 0.bb7) + (14 0.B"l) = 137. 782.
g
/
E
=
=
5*'
ave 0.B40 e.
8 The Option B scram time lici;t specification, T, is determined as follows:
B 1/2 e
= p + 1.es N,
.o g
l j
(la1{Njj whe re: ft = mean value for statistical scram time distribution to notch x.
(Table 1) 0.834 sec
=
0 = standard deviation of above distribution (Table 1) 0.059 sec
=
N)= number of rods test at B0C (All active rods).
13G
=
1/2
+ 1.65 ! 36 I
0.059 b.913 Sec
=
g=
0.B34
( 44
)
Page 2 of 3 BSEP-2.
?-20 81 0
Test the following for trueness:
ave B
+
0.840 5 0.323 YES If yes, the MCPR for each pressurization event is determined from Optior. B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
C
-r T
" N
= MCPR adjusted 0ption +
MCPR0ption - MCPR0ption g
,g B
A B
B A
where: U = present tech spec scram tirre reauirements g
to notch x.
(Table 1 or Tech Spec)
=
_sec _
0 (From the cycle specific reload license supplement)
- 7X7 8X8 8X8R P8X8R (1) Non-pressurization Maximum Maximum Maximum Maximum events MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
MCPR =
M R"
k A
g A
A (2) TTAR we. BP MCPR =
MCPR =
MCPR =
MCPR "
B B
B B
MCPR MCPR I+
MCPR adj.=
adj adj adj f'
=
=
=
MCPR =
MCPR =
MCPR =
M R=
}t A
A A
- B B
B" B
MCPR.=
MCPR MCPR.=
lt MCPR
=
=
ad; adj adj adj f
t use only if (>K 0
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
.. OLMCPR :
PIge 3 of 3 BSEP-2.
TABLE 1
- 7. '2.8 - B \\
ODYN Option B Scram Time Conformance Recuirements Scram Times From De-Energization of Scram Pilot Valve Solenoid (Sec.)
Opt ion B Standard 1967 A/S*
Mean De lation Tech Spec Curve Rnd Inserted to Notch:
u o
T 39 Pickup 0.671 0.050 0.838 Dropout 0.68B 0.052 0.862 38 Pickup 0.723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056 0.988 Dr6 pout 0.797 0.057 1.013 36 Pickup 1.064 Dropout 0.852 0.060 1.089
- Note:
67A = 67B in these notch positions O
9 9
Page 1 of 3
-1 ODYN OPT 10f1 B SCRAM TIME SURVEILLR!lCE REQUIREMEf4TS Fo b ing olsolsi Te*
i l
0 Notch "x" = Notch which corresponds most closely to 20"; insertion of rods =
3(o i
0 The mean scram time, D ave, f r the scram data cenerated to date in the cycle is detemined by:
R
.b N j ri U
0.B40 Sec
=
E"N ave i
i=1 where:
n = number of surveillance tests performed to date in the cycle. (Including B0C) 4
=
Tj = average scram time to notch x for surveillance test i.
N = number of rods tested in surveillance test i.
g therefore; fij=
l3(o + 14 + 14 + 1 =
1(,5
.i=1 EN r = (ta o.B40+(14 D.so74(14. o.anM(i c.'80) 5i 4=1 e 138.(A9 C
- 0. M 0 Sec
=
=
e.
ave 165 0
The Option B scram time limit specification, T, is determined as follows:
B 1/2 7
I',l
'C
= /2 + 1.65
.O g
_{Nj j i=1 where: /4 = mean value for statistical scram time distribution to notch x.
(Table 1)
= D. B34 sec 0 = standard deviation of atove distribution (Table 1) 0.059 sec
=
N)= number of rods test at B0C ( All active rods).
= _t36 1/2 M
D D.059 0.927.
sec
=
B*
O.B34
+ 1.65
((G5 j
Page 2 of 3 BSEP-2 10-3o-91 e
Test the following for trueness:
ave B
O.B4D
$ D.922 YES I
If yes, the MCPR for each pressurization event is determir.ed from Option B MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
adjusted 0ption + -U ave-DD M R
= MCPR MCPR0ption - MCPR0ption g
,7 B
A B
B A
where: U = present tech spec scram tirre requirements p
to notch x.
(Table 1 or Tech Spec)
=
sec 9 (From the cycle specific reload license supplement) 7X7 8X8 8X8R P8X8R (1) Non-pressurization Maximum Maximum Maximum Maximum events MCPR =
MCPF,=
MCPR =
MCPR =
MCPR =
MCPR =
MO R =
MC R =
}'
A g
A g
(2) TT/LR wo BP B"
B" B"
B" MCPR MCPR 1+
=
=
=
=
adj adj adj adj
['
MCPR =
MCPR =
MCPR =
tiCPR =
}t g
g A
MCPR =
MCPR "
B B
B B"
=
=
=
adj adj adj adj.=
f i use only if (>K 8
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
.*. OLMCPR :
Page 3 of 3 BSEP-2.
TABl.E 1 to_3o_ gg ODYN Option B Scram Time Conformance Requirements Scram Times From De-Energization of Scram Pilot Valve Solenoid (Sec.)
Option B Standard 1967 A/S*
Mean Deviat ion Tech Spec Curve Rod Inserted to Notch:
u o
TA 39 Pickup 0.671 0.050 0.838 Dropout 0.688 0.052 0.862 38 Pickup 0.~723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056
~0.988 Drbpout 0.797 0.057 1.013 36 Pickup 1.064 Dropout 0.852 0.060 1.089
- Note: 67A = 67B in these notch positions
Page 1 of 3 MP-2 ODYN OPT 10N B SCRAM TIME SURVElLLANCE REQUTREMENTS Follow $ i2/2t /8i Test 0
Notch "x" = Notch which corresponds most closely to 20^; insertion of rods =
3(o t
0 The mean scram time, D ave, for the scram data generated to date in the cycle is determined by:
R
.b N j ti W
b.MO sec
["N ave i
ist where:
n = number of surveillance tests performed to date in the cycle. (Including BOC)
=.
5 r = average scram time to notch x for surveillance test i.
5 N = number of rods tested in surveillance test i.
g j= I3b + I4 + I4 + i + I2.
IE therefore, N
,i=I EN r$ = (136 D.840 +(14 0.Bb'D+(14 0.8tO+(i 0.%7)+(12. es 3
ini C 148.3B2 i48.3B2 t
sec
=
=
0.638 ave gg7 0
The Option B scram time limit specification, T, is determined as follows:
g
'C
- O+
- O B
(IntENi /
where: /4 = mean value for statistical scram time distribution to notch x.
(Table 1)
= 0. B34 sec 0 = standard deviation of atove distribution (Table 1) 0.059 sec
=
N)= number of rods test at BOC (All active rods).
13(o
=
1/2 I3b D
- B.0E9 0.919 Sec
=
+ 1.65 B
0.B34
( 17 7
)
Page 2 of 3 BSEP-2.
8 Test the following for trueness:
ave B
Y 0.B3B 5 0.919 Y Es If yes, the MCPR for each pressurization event is determined from Option 3 MCPR's.
If no, the MCPR for each pressurization event is determined from the following linear interpolation:
U ave-DC
= M PR adjusted 0ption
- MCPR0ption - MCPP0ption g
,g B
A B
B A
where: C = present tech spec scram time requirements A
to notch x.
(Table 1 or Tech Spec)
=
sec 9 (From the cycle specific reload license supplement) 7X7 8X8 8X8R P8X8R (1) Non-pressurization Maximum Maximum Maximum f'a ximum events MCPR =
MCPR =
MCPR =
MCPR =
- MCPR =
M R*
A A
A A
(2) TT/LR wo BP MCPR *
=
B B
'B" B"
MCPR MCPR l+
t'CPR
=
=
=
=
adj adj adj adj f
1 MCPR =
MCPR =
MCPR =
f1CPR =
}t g
A A
N*
B B
B" B
MCPR MCPR.=
1t MCPR MCPR
=
=
=
adj adj adj adj f
f use only if (>K 4
The Operating Limit MCPR is the maximum of all three event MCPR's.
7X7 8X8 8X8R P8X8R
.*. OLMCPR :
e.
Page 3 of 3 BSEP TABI.E 1 i 2 - 2a - si j
ODYN Option B Scram Time Conformance Require.ments i
Scram Times From De-Energization of Scram Pilot Valve Solenoid (Sec'.)
Opt ion B Standard 1967 A/S*
Mean Deviation Tech Spec Curve Red Inserted to Notch:
u o
TA 39 Pickup 0.671 0.050 0.838 Dropout 0.688 0.052 0.862 38 Pickup 0.723 0.054 0.911 Dropout 0.741 0.055 0.937 37 Pickup 0.778 0.056 0.988 Dr6 pout 0.797 0.057 1.013 36 Pickup 1.064.
Drcpout' O.852 0.060 1.089 l
i l
- Note:
67A = 67B in these notch positions I
BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 2 SCRAM TIME TESTING BEGINNING OF CYCLE (BOC) 4 20% INSERTION 20% INSERTION ROD NUMBER TIME (SEC.)
ROD NUMBER TIME (SEC.)
02-19 0.817
.18-31 0.867 02-23 0.783 18-35 0.900 02-27 0.817 18-39 0.867 02-31 0.783 18-43 0.883 02-35 0.883 18-47 0.967 06-11 0.817 18-51 0.800 06-15 0.800 22-03 0.833 06-19 0.767 22-07
-0.850 06-23 0.800 22-11 0.850 06-27 0.817 22-15 0.867 06-31 0.850 22-19 0.867 06-35 0.867 22-23 0.833 06-39 0.850 22-27 0.900 43 0.783 22-31 0.967 10-07 0.800 22-35 0.850 10-11 0.883 22-39 0.917 10-15 0.850 22-43 0.850 10-19 0.933 22-47 0.817 10-23 0.900 22-51 0.883 10-27 0.850 26-03 0.800 10-31 0.883 26-07 0.833 10-35 0.817 26-11 0.833 10-39 0.850 26-15 0.650 10-43 0.833 26-19 0.950 10-47 0.767 26-23 0.817 14-07 0.900 26-27 0.800 14-11 0.867 26-31 0.817 14-15 0.800 26-35 0.817 14-19 0.867 26-39 0.883 14-23 0.833 26-43 0.917 14-27 0.900 26-47 0.850 14-31 0.883 26-51 0.783 14-35 0.850 30-03 0.767 14-39 0.933 30-07 0.850 14-43 0.817 30-11 0.800 14-47 0.883 30-15 0.850 18-03 0.800 30-19 0.833 18-07 0.783 30-23 0.833 18-11 0.933 30-27 0.900 18-15 0.900 30-31 0.850 18-19 0.983 30-35 0.833 18-23 0.900 30-39 0.817 18-27 0.850 30-43 0.867
BRUNSWICK STEAM ELECTRIC PLANT, UNIT No. 2 (CONT'D)
SCRAM TIME TESTING BEGINNING OF CYCLE (BOC) 4 20% INSERTION 20% INSERTION' ROD NUMBER TIME (SEC.)
ROD NUMBER TIME (SEC.)
s
.30-47 0.783 46-39 0.900 30-51 0.800 46-43 0.850 34-03 0.800 50-19 0.817 34-07 0.800 50-23 0.783 34 0.833 50-27 0.850 34-15 0 833 50-31 0.833' 34-19 0.833 50-35 0.833 34-23
.0.883
'34-27 0.950' 34-31 0.850 34-35 0.967 4
34-39 0.800 34-43 0.867 34-47 0.833 34-51 0.817 38-07 0.817 38-11 0.833 38-15 0.850 38-19 0.817 38-23 0.833 38-27 Ins. Rod 38-31 0.917 38-35 0.900 38-39 0.867 38-43 0.817 38-47 0.750 42-07
.0.900 42-11 0.833 42-15 0.817 4
42-19 0.850 42-23 0.833 42 0.850 42-31 0.850 42-35
- 0.833 42-39 0.850 42-43 0.883 42-47 0.817 46-11' O.783 46-15 0.833 46 0.850 46 0.817' 46-27' O.783 46-31 0.867
'46-35 0.850 o.
t i
a
1 -
BRUNSWICK STEAM ELECTRIC PLANT,' UNIT NO.-2
' SCRAM TIME TESTING CYCLE 4- TEST.NO. 1 FEBRUARY 8, 1981
^^~ -::
20% INSERTION
--- ~ ~ - - -
ROD NUMBER
-TIME ~(SEC.)
o : 7.e 50-27 0.817 42-07 0.833 34-07
'0.767-42-47 0.800 242-39 0.850=
42-15 0.783
'34-47 0.817 10 0.783 02 0.800
~,
10-47 0.783 10-15 0.817 18-07 0.817 18-47 0.817 10-39 0.817
__._w.
t 1
- BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 2 SCRAM TIME TESTING-CYCLE 4 - TEST NO. 2
' JULY 28, 1981
-20% INSERTION
-ROD NUMBER TIME (SEC.)
34-39' O.833 34-15 0.833 34-31 0.833 50-31 0.783 34-23 0.867 34-51 0.800 50-23 0.767 34-03 0.783 18-51 0.817 02-31 0.800 02-23 0.783
' 18-03 0.817 18-15 0.867 18-31 0.883 1
4 1
I l
r h
I i
w
~
,, - - - - - - -. ~,
v.-
BRUNSWICK STEAM ELECTRIC PLANT, UNIT No. 2 SCRAM TIME TESTING CYCLE 4 - TEST No. 3 OCTOBER 30, 1981 20% INSERTION ROD NUMBER TIME (SEC.)
j 18-47 0.867
BRUNSWICK STEAM ELECTRIC PLANT,. UNIT NO. 2 SCRAM TIME TESTING
. CYCLE 4 - TEST NO. ' 4 DECEMBER 21, 1981
'20% INSERTION ROD NUMBER TIME (SEC.)_
02-35 0.850 02-19 0.833 06-43 0.867 06-39 0.800 06-15 0.833 26-51 0.783 26-03 0.817 46-39 0.817 46-15.
0.767 46-11 0.733 50-35 0.833 50-19 0.800 i
i l
l p.
i-
. ~.,....,.....,,,,,, - - _
,,,.s
,