ML101890903
| ML101890903 | |
| Person / Time | |
|---|---|
| Site: | Prairie Island  |
| Issue date: | 07/08/2010 |
| From: | Xcel Energy |
| To: | NRC/RGN-III |
| References | |
| Download: ML101890903 (36) | |
Text
11
Prairie Island Nuclear Generating Plant
22
! "#
! "#
"$% %&
'
"$% %&
'
( %
'#" %)
( %
'#" %)
** !
!
&
&
33
% #
% #
+
+
,)# )
,)# )
+
+
+ #
+ #
-
)
-
)
+ - ))
+ - ))
44
.
.
&
/ +
&
/ +
%
%
" + -
" + -
- -#
- -#
55
! #
"
! #
"
! 0
! 0
% 1 +
% 1 +
%.
#"
%.
#"
+ % 2"+%3
+ % 2"+%3
4#
4#
" -
- )## -
" -
- )## -
15 -
15 -
66
/
/
#67.1
#67.1
+8 (
+8 (
+8
+8
(
# #
(
# #
201/ 3
201/ 3
77
% +
% +
/
/
"
#
9
"
#
9
01/ )#
01/ )#
) :
) :
)
)
9
9
! #- #
)
! #- #
)
# #
# #
-)
-
-)
-
+ # -
+ # -
) # # )
-
) # # )
-
&
"+%-
&
"+%-
9
9
88
" +
" +
.
%&
.
%&
5
5
% +)
% +)
--
--
"+%)
"+%)
%. -
+ -
%. -
+ -
# -
# ;
# -
# ;
"+%
)
"+%
)
<# "+%)
-
)
<# "+%)
-
)
99
.
& #%.!
.
& #%.!
%.
%.
#
#
% 1 !
% 1 !
=
1
=
1 ** 1
1
** !
!"- >
"- >
. #
. #
10 10
&
"
&
"
Human Reliability Analysis Seismic Risk Assessment Pipe Whip Screening Significance Flood Propagation Analysis HELB Environment &
Habitability Pipe Break Frequency
11 11
% .
% .
0 #
0 #
( 0&!
( 0&!
-
-
- ?
- ?
# #
# #
%
%
)
)
@@
#
# #
#
# #
" AB
" AB
12 12
!
"#"
"
"
" $
%&
" $
%&
" $
" $
" $
"
"
'
'
"
( 0&
!
"
( 0&
!
13 13
" .
" .
1%&C7CD 0E " ?
1%&C7CD 0E " ?
<
)
<
)
<
<
%?
%?
F
?
F
?
+
+
?
?
%).-
?
%).-
?
14 14 PINGP Unit 1 Turbine Bldg Seismic Flooding Risk (Total = 2.45E-6/yr) 0.0%
0.0%
0.4%
3.9%
27.5%
68.2%
0%
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
.05 -.07
.07 -.10
.10 -.15
.15 -.20
.20 -.30
.30 -.50 Peak Ground Acceleration, g Percent of Seismic CDF 0.12 g = Design Basis Earthquake
15 15
% 9
% 9
D 1%&G
D 1%&G
-- ?
-- ? @@ ?
?
16 16
-</F
-</FHH
17 17 0 #1 / 201/ 3 0 #1 / 201/ 3
9
9
1
1
** #
)
)@@
% )#
% )#
!
( 0&2
!
( 0&2
#
3
#
3
18 18 0
0
(
)#
(
)#
)
)@@
?
?
"
#
"
#
** )
)
)
)
)
)@@
?
?
& 0
.
?
& 0
.
?
19 19 Does the target have a cast iron component that could fail?
Is moving pipe thicker than target pipe?
Has the interaction been geometrically analyzed, concluding target pipe damage is minimal?
Will not contribute significantly, does not warrant further investigation.
No Yes Can not conclude target pipe damage is minimal.
No Yes Is the target less than 4 NPS?
No 1
2 3
4 5
6 Has the interaction been evaluated in CCHELB SDP?
Is moving pipe normally isolated/
deenergized?
Yes No No Yes Yes No Yes AES analysis supports no target damage. Excluded from interaction set.
Not considered a piping interaction.
Excluded Exclude from SDP Exclude from this SDP
20 20
% <# &
% <# &** B
B
21 21 0
.
0
.
1%&0.
")
1%&0.
")
0 -
I
0 -
I
15 20I 13 # ?
15 20I 13 # ?
7+01%
?
7+01%
?
22 22 Influence of Challenges & Environment on HEP 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 0
15 30 45 60 75 90 105 120 135 150 165 180 195 Time Available, min Human Error Prob.
HD HELB - Isolate CL and FP Breaks Isolate Random CL Break SPAR-H HEP - HELB SPAR-H HEP - Random
23 23
-
-
'
'
@@
#
#
% )#
% )#
'
'
#) # -
#) # -
+>+
)#
+>+
)#
-
-
01/ # )
01/ # )
?
?
24 24
+
+
@@+%#
)
+%#
)@@
@@
+- - #
+- - #
E
E
01/ ?
01/ ?
25 25
. %-
. %-
#
#
%&'(%1 + !
%&'(%1 + !
-
-
&
&
26 26
. ) -
#
. ) -
#
- #
- #
?
?
! - #
! - #
01/
)
01/
)
?
?
27 27
-) 15
-) 15
# 01/
# 01/
#
?
#
?
/ # - )
/ # - )
#/ +
#/ +
01/
01/
#
?
#
?
28 28
. %-
. %-
J
J
+-
-
+-
-
?
?
?
?
#
?
#
?
29 29
. %-
. %-
J
J
- - %;-)(
- - %;-)(
2%(3
2%(3
- #?
- #?
/
/ @@ -
-
- # ?
- # ?
& - - - #
& - - - #
?
?
+-
1 %
+-
1 %
?
?
+-
-
.%?
+-
-
.%?
% -
%
0
# ?
% -
%
0
# ?
1
# ?
1
# ?
30 30
@@
&
&
" -
- -
" -
- -
&
&
31 31
.
.
.
.
-
5
-
5
-) 15 ?
-) 15 ?
1-
.5
"0
1-
.5
"0
E
?
E
?
E ?
E ?
32 32
%&
# # #
-
#
%&
# # #
-
#
)
)
-
--
-
--
-?
-?
33 33
2?3 2?3
#- #:
#- #:
# K
# K
)
)
) ?
) ?
! - #1 %
! - #1 %
- ?
- ?
% E -
% E -
- # ?
- # ?
34 34
! "#
! "#
&
- 9
&
- 9
)
#
)
#
"+%
"+%
-
-
## #)#-#
## #)#-#
5
5
%
# #- -
# #- -
35 35
15-
15-
36 36 L M L M