2016/06/20 Vogtle COL Docs - IRWST Minimum Screen Area ... · 1 Vogtle PEmails From: Hoellman,...
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1 Vogtle PEmails From: Hoellman, Jordan Sent: Monday, June 20, 2016 12:39 PM To: Vogtle PEmails Subject: IRWST Minimum Screen Area Change and Containment Recirculation Screen Protective Plate Dimension Change - Non-Proprietary slides Attachments: 2016-06-23 Non-prop slides - Debris Screen Related Dimensions.pdf
Transcript of 2016/06/20 Vogtle COL Docs - IRWST Minimum Screen Area ... · 1 Vogtle PEmails From: Hoellman,...
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Vogtle PEmails
From: Hoellman, JordanSent: Monday, June 20, 2016 12:39 PMTo: Vogtle PEmailsSubject: IRWST Minimum Screen Area Change and Containment Recirculation Screen Protective
Plate Dimension Change - Non-Proprietary slidesAttachments: 2016-06-23 Non-prop slides - Debris Screen Related Dimensions.pdf
Hearing Identifier: Vogtle_COL_Docs_Public Email Number: 37 Mail Envelope Properties (f50770667b10420e9ce7cde56fa3d2d6) Subject: IRWST Minimum Screen Area Change and Containment Recirculation Screen Protective Plate Dimension Change - Non-Proprietary slides Sent Date: 6/20/2016 12:38:49 PM Received Date: 6/20/2016 12:38:51 PM From: Hoellman, Jordan Created By: [email protected] Recipients: "Vogtle PEmails" <[email protected]> Tracking Status: None Post Office: HQPWMSMRS03.nrc.gov Files Size Date & Time MESSAGE 3 6/20/2016 12:38:51 PM 2016-06-23 Non-prop slides - Debris Screen Related Dimensions.pdf 800606 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:
1
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Non
-Pro
prie
tary
Pre
sent
atio
n Ve
rsio
n
AP
P-G
W-G
LY-1
10 R
evis
ion
0
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
2
06/2
3/20
16
IRW
ST
Min
imum
Scr
een
Are
a C
hang
e an
d C
onta
inm
ent R
ecirc
ulat
ion
Scr
een
Pro
tect
ive
Pla
te
Dim
ensi
on C
hang
e (N
on-P
ropr
ieta
ry)
AP
P-G
W-G
LY-1
10 R
evis
ion
0
3
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Mee
ting
Pur
pose
and
Age
nda
Mee
ting
Pur
pose
•D
iscu
ss th
e pr
opos
ed c
hang
es to
the
IRW
ST
Scr
een
and
Con
tain
men
t Rec
ircul
atio
n S
cree
n P
rote
ctiv
e P
late
•R
ecei
ve a
nd a
ddre
ss S
taff
feed
back
Age
nda
•D
iscu
ss IR
WS
T S
cree
n ch
ange
•D
iscu
ss C
onta
inm
ent R
ecirc
ulat
ion
Scr
een
Pro
tect
ive
Pla
te
chan
ge
AP
P-G
W-G
LY-1
10 R
evis
ion
0
4
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Sum
mar
y of
Cha
nges
IRW
ST
Scr
een
Cha
nge
•IR
WS
T S
cree
ns A
and
B–
Incr
ease
the
scre
en fr
onta
l fac
e ar
eas
from
20
ft2to
24
ft2–
Incr
ease
the
scre
en s
urfa
ce a
rea
from
500
ft2
to 5
50 ft
2
•IR
WS
T S
cree
n C
–In
crea
se th
e sc
reen
fron
tal f
ace
area
from
40
ft2to
47f
t2–
Incr
ease
the
scre
en s
urfa
ce a
rea
from
100
0 ft2
to 1
150
ft2
Con
tain
men
t Rec
ircul
atio
n S
cree
n P
rote
ctiv
e P
late
Cha
nge
•In
crea
se th
e m
axim
um s
paci
ng o
f the
pro
tect
ive
plat
e ab
ove
both
co
ntai
nmen
t rec
ircul
atio
n sc
reen
s fro
m 1
foot
to 1
foot
3 in
ches
•
Dec
reas
e th
e m
inim
um le
ngth
the
plat
e m
ust e
xten
d to
the
front
of
the
scre
en fr
om 1
0 fe
et to
8 fe
et 3
inch
es
AP
P-G
W-G
LY-1
10 R
evis
ion
0
5
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Bac
kgro
und
Info
rmat
ion
•P
er U
FSA
R S
ectio
n 6.
3, th
e pr
imar
y fu
nctio
n of
the
AP
1000
Pas
sive
C
ore
Coo
ling
Sys
tem
(PX
S) i
s to
pro
vide
em
erge
ncy
core
coo
ling
follo
win
g po
stul
ated
des
ign
basi
s ev
ents
. To
acc
ompl
ish
this
prim
ary
func
tion,
the
PX
S is
des
igne
d to
per
form
:–
Em
erge
ncy
core
dec
ay h
eat r
emov
al–
Rea
ctor
coo
lant
sys
tem
em
erge
ncy
mak
eup
and
bora
tion
–S
afet
y In
ject
ion
–C
onta
inm
ent p
H c
ontro
l
•P
er T
ier 1
Sub
sect
ion
2.2.
3, th
e co
re m
akeu
p ta
nks
(CM
Ts),
accu
mul
ator
s, in
-con
tain
men
t ref
uelin
g w
ater
sto
rage
tank
(IR
WS
T) a
nd
cont
ainm
ent r
ecirc
ulat
ion
prov
ide
reac
tor c
oola
nt s
yste
m (R
CS
) m
akeu
p, b
orat
ion,
and
saf
ety
inje
ctio
n du
ring
desi
gn b
asis
eve
nts
•U
FSA
R S
ubse
ctio
n 6.
3.2.
1.3
disc
usse
s sa
fety
inje
ctio
n du
ring
loss
of
cool
ant a
ccid
ents
AP
P-G
W-G
LY-1
10 R
evis
ion
0
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
6
IRW
ST
Min
imum
Scr
een
Dim
ensi
on C
hang
e
AP
P-G
W-G
LY-1
10 R
evis
ion
0
7
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
IRW
ST
Scr
een
Loca
tion
and
Func
tion
•Th
ree
cros
s co
nnec
ted
scre
ens
are
loca
ted
at th
e bo
ttom
of
the
IRW
ST
•IR
WS
T S
cree
n fu
nctio
ns to
pre
vent
deb
ris fr
om e
nter
ing
the
Rea
ctor
Coo
lant
Sys
tem
•P
oten
tial f
or in
trodu
cing
deb
ris to
the
IRW
ST
is li
mite
d–
The
IRW
ST
is c
lose
d of
f fro
m th
e co
ntai
nmen
t–
Ven
ts a
nd o
verfl
ows
are
norm
ally
clo
sed
by lo
uver
s–
Per
6.3
.8.1
, a c
onta
inm
ent c
lean
lines
s pr
ogra
m is
requ
ired
to
prev
ent s
igni
fican
t deb
ris a
ccum
ulat
ion
–P
er T
ech
Spe
c 3.
5.6.
10, r
equi
red
insp
ectio
ns p
erio
dica
lly
conf
irm th
e IR
WS
T sc
reen
s ar
e fre
e of
acc
umul
ated
deb
ris
AP
P-G
W-G
LY-1
10 R
evis
ion
0
8
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
IRW
ST
Scr
een
Loca
tion
UFS
AR
Figu
re 6
.3-2
AP
P-G
W-G
LY-1
10 R
evis
ion
0
9
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
IRW
ST
Scr
een
Loca
tion
UFS
AR
Figu
re 6
.3-6
AP
P-G
W-G
LY-1
10 R
evis
ion
0
10
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Sim
plifi
ed P
ost-L
OC
A O
pera
tion
Dis
cuss
ion
•Fo
llow
ing
a po
stul
ated
LO
CA
, the
RC
S p
ress
ure
decr
ease
s an
d in
itiat
es a
reac
tor t
rip.
•A
s th
e C
MTs
’ wat
er le
vel d
rops
, lev
el s
enso
rs in
the
tank
act
uate
A
DS
Sta
ge 1
-3.
•Fo
llow
ing
AD
S a
ctua
tion,
the
oper
ator
s ar
e in
stru
cted
to a
lign
and
actu
ate
the
RN
S to
inje
ct IR
WS
T (o
r cas
k lo
adin
g pi
t) w
ater
in
to th
e R
CS
onc
e R
CS
pre
ssur
e is
with
in th
e R
NS
pum
p in
ject
ion
capa
bilit
y.–
RN
S in
ject
ion
will
cau
se th
e C
MT
inje
ctio
n to
sto
p be
fore
its
leve
l dr
ops
to th
e A
DS
Sta
ge 4
act
uatio
n se
tpoi
nt–
The
AD
S fo
urth
sta
ge v
alve
s w
ill no
t be
actu
ated
as
long
as
RN
S
flow
con
tinue
s•
The
oper
atio
n of
the
nons
afet
y-re
late
d R
NS
is n
ot re
quire
d to
co
ol th
e co
re; i
ts o
pera
tion
allo
ws
for a
n ea
sier
/fast
er re
star
t of
the
plan
t
IRW
ST M
inim
um S
cree
n Si
ze is
bas
ed o
n th
e m
axim
um R
NS
flow
AP
P-G
W-G
LY-1
10 R
evis
ion
0
11
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
IRW
ST
Inje
ctio
n Fl
ow P
ath
Usi
ng R
NS
Pum
ps
UFS
AR
Figu
re 6
.3-3
AP
P-G
W-G
LY-1
10 R
evis
ion
0
12
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
IRW
ST
Inje
ctio
n Fl
ow P
ath
Usi
ng R
NS
Pum
ps
UFS
AR
Figu
re 5
.4-6
AP
P-G
W-G
LY-1
10 R
evis
ion
0
13
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Pro
blem
Sta
tem
ent
•Th
e m
axim
um R
NS
flow
rang
e in
crea
sed
from
232
0 gp
mto
26
00 g
pmin
ord
er to
acc
ount
for i
nstru
men
t unc
erta
inty
and
ac
coun
t for
the
RN
S fl
ow c
hang
es re
sulti
ng fr
om R
CS
pr
essu
re d
ecre
ases
dur
ing
an a
ccid
ent
•Th
e in
crea
se in
the
RN
S m
axim
um fl
ow ra
te re
quire
s a
corre
spon
ding
incr
ease
in th
e IR
WS
T m
inim
um s
cree
n ar
eas
requ
ired
to b
e cr
edite
d –
Ens
ures
that
the
desi
gn b
asis
for t
he IR
WS
T sc
reen
s re
mai
ns
cons
iste
nt w
ith th
e re
sults
of t
he s
cree
n he
ad lo
ss te
stin
g th
at
dem
onst
rate
d ac
cept
abili
ty o
f the
scr
eens
.
AP
P-G
W-G
LY-1
10 R
evis
ion
0
14
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Pro
pose
d C
hang
e
IRW
ST S
cree
n
Cur
rent
Min
imum
Req
uire
d A
reas
Prop
osed
Min
imum
Req
uire
d A
reas
Fron
tal F
ace
Are
a (ft
2 )S
cree
n S
urfa
ce
Are
a (ft
2 )Fr
onta
l Fac
e A
rea
(ft2 )
Scr
een
Sur
face
A
rea
(ft2 )
A20
500
2455
0B
2050
024
550
C40
1000
4711
50To
tal
8020
0095
2250
AP
P-G
W-G
LY-1
10 R
evis
ion
0
15
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Just
ifica
tion
•B
y in
crea
sing
the
min
imum
are
as, t
he s
cree
n he
ad lo
ss p
erfo
rman
ce re
mai
ns
cons
iste
nt w
ith th
e sc
reen
test
ing
resu
lts•
No
impa
ct o
n R
NS
des
ign
func
tions
•N
o ch
ange
to a
pplic
able
cod
es a
nd s
tand
ards
•
No
impa
ct o
n eq
uipm
ent
–Th
e pr
opos
ed m
inim
um re
quire
d IR
WS
T sc
reen
are
as re
mai
n be
low
the
actu
al IR
WS
T sc
reen
are
as p
rovi
ded
in th
e de
sign
•S
ubst
antia
l mar
gin
rem
ains
in th
e de
sign
–P
ropo
sed
chan
ge re
sults
in c
redi
t of 8
6% o
f the
tota
l IR
WS
T sc
reen
fron
tal a
rea
–D
ebris
test
ing
perfo
rmed
dem
onst
rate
d a
mea
sure
d he
ad lo
ss o
f 0.0
psi
whe
n su
bjec
ted
to
the
very
con
serv
ativ
e de
bris
load
ing
(equ
ival
ent t
o 50
% o
f the
tota
l fib
er a
nd d
ebris
as
sum
ed a
vaila
ble
insi
de c
onta
inm
ent)
–P
er U
FSA
R 6
.3.2
.2.7
.1, h
ead
loss
of 0
.25
psi i
s ac
cept
able
bas
ed o
n se
nsiti
vity
ana
lysi
s•
Scr
een
size
bas
ed o
n:
–th
e sa
me
desi
gn a
nd a
naly
sis
met
hod
used
in th
e ce
rtific
atio
n–
scal
ed fr
onta
l fac
e flo
wra
tes
used
in te
stin
g su
ppor
ting
certi
ficat
ion
•N
o ch
ange
to th
e de
sign
of d
ebris
miti
gatio
n fe
atur
es d
escr
ibed
in U
FSA
R
Sub
sect
ion
6.3.
2.2.
7.2
–S
uch
as th
e sc
reen
orie
ntat
ion
or th
e in
spec
tion
requ
irem
ents
•
The
incr
ease
in c
redi
ted
IRW
ST
scre
en a
rea
does
not
incr
ease
the
risk
of d
ebris
cl
oggi
ng th
e sc
reen
.
AP
P-G
W-G
LY-1
10 R
evis
ion
0
16
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
viii)
The
scr
eens
util
ize
pock
ets
with
a fr
onta
l fa
ce a
rea
of
6.2
in2
and
a sc
reen
sur
face
ar
ea
140
in2
per p
ocke
t. IR
WS
T S
cree
ns A
an
d B
eac
h ha
ve a
suf
ficie
nt n
umbe
r of
pock
ets
to p
rovi
de a
fron
tal f
ace
area
2
4ft2
, a
scre
en s
urfa
ce a
rea
550
ft2,
and
a s
cree
n m
esh
size
of
0.0
625
inch
. IR
WS
T S
cree
n C
ha
s a
suffi
cien
t num
ber o
f poc
kets
to p
rovi
de a
fro
ntal
face
are
a 4
7ft2
, a s
cree
n su
rface
ar
ea
115
0 ft2
, and
a s
cree
n m
esh
size
0.06
25 in
ch.
AP
P-G
W-G
LY-1
10 R
evis
ion
0
17
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
IRW
ST
Scr
eens
A a
nd B
: 5
50 p
er s
cree
nIR
WS
T S
cree
n C
: 1
150
ft2
AP
P-G
W-G
LY-1
10 R
evis
ion
0
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
18
Con
tain
men
t Rec
ircul
atio
n S
cree
n P
rote
ctiv
e P
late
D
imen
sion
Cha
nge
AP
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evis
ion
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19
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Con
tain
men
t Rec
irc. S
cree
n Lo
catio
n an
d Fu
nctio
n•
Two
scre
ens
are
loca
ted
verti
cally
in th
e S
team
Gen
erat
or
Com
partm
ent 2
, sig
nific
antly
abo
ve th
e re
acto
r ves
sel c
avity
•C
onta
inm
ent r
ecirc
ulat
ion
scre
ens
func
tion
to p
reve
nt d
ebris
from
en
terin
g th
e R
eact
or C
oola
nt S
yste
m fo
llow
ing
a de
sign
bas
is a
ccid
ent
–S
ee U
FSA
R 6
.3.2
.2.7
.3 fo
r dis
cuss
ion
•D
ebris
tran
spor
ted
to s
cree
ns fo
llow
ing
a de
sign
bas
is a
ccid
ent i
s lim
ited
–R
CS
blo
wdo
wn
will
tend
to c
arry
deb
ris c
reat
ed b
y th
e ac
cide
nt in
to th
e re
acto
r cav
ity (l
ocat
ed a
way
from
scr
eens
)–
Two-
foot
-hig
h de
bris
cur
b is
pro
vide
d in
fron
t of t
he s
cree
ns–
Deb
ris s
hiel
d pr
ovid
ed a
bove
the
scre
ens
–U
se o
f hig
h de
nsity
coa
tings
–D
ebris
lim
its e
stab
lishe
d–
Impl
emen
tatio
n of
con
tain
men
t cle
anlin
ess
requ
irem
ents
–P
er T
ech
Spe
c 3.
5.6.
10, r
equi
red
insp
ectio
ns p
erio
dica
lly c
onfir
m th
e re
circ
ulat
ion
scre
ens
are
free
of a
ccum
ulat
ed d
ebris
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Rec
ircul
atio
n S
cree
n Lo
catio
n
UFS
AR
Figu
re 6
.3-8
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Rec
ircul
atio
n S
cree
n Lo
catio
n
UFS
AR
Figu
re 6
.3-9
AP
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evis
ion
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Sim
plifi
ed P
ost-L
OC
A O
pera
tion
Dis
cuss
ion
•Fo
llow
ing
a po
stul
ated
LO
CA
, the
RC
S p
ress
ure
decr
ease
s an
d in
itiat
es a
re
acto
r trip
.•
As
the
CM
Ts’ w
ater
leve
l dro
ps, l
evel
sen
sors
in th
e ta
nk a
ctua
te A
DS
S
tage
1-3
.•
With
out o
pera
tion
of th
e R
NS
, the
CM
T le
vel w
ould
con
tinue
to d
rop,
ac
tuat
ing
AD
S S
tage
4 v
alve
pat
hs
–di
scha
rge
dire
ctly
to th
e st
eam
gen
erat
or c
ompa
rtmen
ts
•A
ccum
ulat
ors
begi
n to
inje
ct w
hen
the
reac
tor c
oola
nt s
yste
m
depr
essu
rizes
to a
bout
700
psi
g•
Whe
n S
tage
4 A
DS
val
ves
are
actu
ated
, the
IRW
ST
inje
ctio
n sq
uib
valv
es
are
also
act
uate
d. W
hen
RC
S p
ress
ure
drop
s be
low
IRW
ST
inje
ctio
n he
ad, c
heck
val
ves
open
and
the
IRW
ST
grav
ity in
ject
s•
The
cont
ainm
ent w
ater
leve
l inc
reas
es•
Whe
n th
e IR
WS
T le
vel d
rops
to a
low
leve
l set
poin
t, th
e co
ntai
nmen
t re
circ
ulat
ion
lines
are
ope
ned
•R
ecirc
ulat
ion
begi
ns.
Wat
er in
con
tain
men
t will
flow
into
the
reac
tor t
o pr
ovid
e co
re c
oolin
g.
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Con
tain
men
t Rec
ircul
atio
n Fl
ow P
ath
UFS
AR
Figu
re 6
.3-3
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Pro
blem
Sta
tem
ent
•A
s id
entif
ied
in U
FSA
R S
ubse
ctio
n 6.
3.2.
2.7.
3, th
e sc
reen
pro
tect
ive
plat
e is
pro
vide
d to
pre
vent
non
safe
ty-r
elat
ed (S
ervi
ce L
evel
II) c
oatin
g de
bris
that
cou
ld d
etac
h in
the
post
-acc
iden
t env
ironm
ent f
rom
fallin
g to
o cl
ose
to th
e re
circ
ulat
ion
scre
ens,
whe
re it
cou
ld b
e tra
nspo
rted
to
the
scre
ens.
•Th
e U
FSA
R c
urre
ntly
spe
cifie
s th
at th
e pl
ates
loca
ted
over
the
cont
ainm
ent r
ecirc
ulat
ion
scre
en e
xten
d at
leas
t 10
feet
per
pend
icul
ar
to th
e si
de o
f the
scr
een
surfa
ce–
In o
rder
to fa
cilit
ate
reac
tor c
oola
nt p
ump
mai
nten
ance
, add
ition
al
clea
ranc
e is
pro
pose
d in
this
LA
R.
•Th
e U
FSA
R c
urre
ntly
spe
cifie
s th
at th
e pl
ates
loca
ted
over
the
cont
ainm
ent r
ecirc
ulat
ion
scre
en a
re n
o m
ore
that
1 ft
. abo
ve th
e to
p of
th
e sc
reen
.–
Cha
nges
are
pro
pose
d to
cle
arly
spe
cify
whe
re th
e m
easu
rem
ents
w
ill be
take
n an
d ac
coun
t for
the
final
loca
tion
of th
e pl
ate
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Pro
pose
d C
hang
e
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Pro
pose
d C
hang
e•
Spe
cify
in U
FSA
R S
ubse
ctio
n 6.
3.2.
7.3
that
the
north
edg
e of
the
north
con
tain
men
t rec
ircul
atio
n sc
reen
face
is lo
cate
d at
leas
t 3
feet
, 6 in
ches
from
the
north
cor
ner o
f the
wes
t wal
l of s
team
ge
nera
tor c
ompa
rtmen
t 2a,
c
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Just
ifica
tion
•Th
e co
atin
g de
bris
set
tling
and
tran
spor
t ana
lysi
s w
as re
vise
d to
de
mon
stra
te th
at th
e pr
opos
ed re
visi
ons
to th
e pr
otec
tive
plat
e co
nfig
urat
ion
wou
ld c
ontin
ue to
pre
vent
coa
ting
debr
is fr
om
reac
hing
the
scre
ens
–D
ebris
set
tling
rate
s us
ed fo
r the
cal
cula
tions
wer
e de
velo
ped
by
usin
g th
e m
ost c
onse
rvat
ive
settl
ing
rate
repo
rted
in N
UR
EG
/CR
-69
16, “
Hyd
raul
ic T
rans
port
of C
oatin
g D
ebris
,” fo
r coa
ting
mat
eria
ls
repr
esen
tativ
e of
the
AP
1000
des
ign,
and
app
lyin
g an
add
ition
al
mar
gin
fact
or o
f 1.4
to th
e se
lect
ed ra
te fo
r add
ition
al c
onse
rvat
ism
.•
The
prop
osed
cha
nges
do
not a
dver
sely
affe
ct th
e st
ruct
ural
qu
alifi
catio
n of
the
CR
pro
tect
ive
plat
e m
odul
e; th
e st
ruct
ure
rem
ains
qua
lifie
d fo
r its
requ
ired
load
com
bina
tions
.•
No
impa
ct o
n P
XS
des
ign
func
tions
•N
o ch
ange
to a
pplic
able
cod
es a
nd s
tand
ards
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
vii)
The
plat
e lo
cate
d ab
ove
the
cont
ainm
ent r
ecirc
ulat
ion
scre
ens
isno
mor
e th
an 1
ft, 3
inab
ove
the
top
of th
e fa
ce o
f the
scr
eens
and
ext
ends
at le
ast 8
ft, 3
in p
erpe
ndic
ular
to th
efro
nt a
nd a
t lea
st 7
ftto
the
side
of
the
face
of t
he s
cree
ns.
plat
e
AP
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
xiii)
Insp
ectio
ns w
ill be
con
duct
ed o
f the
su
rface
s in
the
vici
nity
of t
he c
onta
inm
ent
reci
rcul
atio
n sc
reen
s. T
he s
urfa
ces
in th
e vi
cini
ty o
f the
con
tain
men
t rec
ircul
atio
n sc
reen
s ar
e th
e su
rface
s lo
cate
d ab
ove
the
botto
m o
f the
reci
rcul
atio
n sc
reen
s up
to
and
incl
udin
g th
e bo
ttom
sur
face
of t
he
plat
e di
scus
sed
in T
able
2.2
.3-4
, ite
m
8.c.
vii,
out a
t lea
st 8
ft, 3
in p
erpe
ndic
ular
to
the
front
and
at l
east
7 fe
et to
the
side
of
the
face
of t
he s
cree
ns.
AP
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ion
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
6.3.
2.2.
7.1
Gen
eral
Scr
een
Des
ign
Crit
eria
1.S
cree
ns a
re d
esig
ned
to R
egul
ator
y G
uide
1.8
2, in
clud
ing:
•S
cree
ns h
ave
solid
top
cove
r. C
onta
inm
ent r
ecirc
ulat
ion
scre
ens
have
apr
otec
tive
plat
e th
at is
loca
ted
no m
ore
than
1 fo
ot, 3
inch
es
abov
e th
e to
p of
the
face
of t
he s
cree
ns, w
hich
ext
ends
at le
ast 8
feet
, 3 in
ches
per
pend
icul
ar to
the
front
and
at l
east
7 fe
et to
the
side
of t
he fa
ce o
f the
scr
eens
. The
pla
te d
imen
sion
s ar
e re
lativ
e to
th
e po
rtion
of t
he s
cree
ns w
here
wat
er fl
ow e
nter
s th
e sc
reen
op
enin
gs. T
he p
rote
ctiv
e pl
ate
max
imum
hei
ght d
imen
sion
is th
e di
stan
ce b
etw
een
the
top
of th
e sc
reen
s an
d th
e un
ders
ide
of th
e pr
otec
tive
plat
e m
odul
e to
p pl
ate
at th
e ex
pose
d ed
ges
of th
e pr
otec
tive
plat
e, w
hich
ext
end
into
the
cont
ainm
ent r
ecirc
ulat
ion
wat
er fl
ow (e
ast t
owar
d st
eam
gen
erat
or 2
, and
nor
th to
war
d th
e co
rrid
or).
AP
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ion
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
•6.
3.2.
2.7.
3 C
onta
inm
ent R
ecirc
ulat
ion
Scre
ens
…Th
e co
ntai
nmen
t rec
ircul
atio
n sc
reen
s ar
e pr
otec
ted
by a
plat
e lo
cate
d ab
ove
them
. The
pro
tect
ive
plat
e pr
even
tsde
bris
from
the
failu
re o
f non
safe
ty-re
late
d co
atin
gs fr
om g
ettin
g in
to th
e w
ater
clo
se to
the
scre
ens
(clo
ser t
han
8 fe
et, 3
in
ches
from
the
front
of t
he fa
ce o
f the
scr
eens
and
7 fe
et fr
om th
e si
de o
f the
face
of
the
scre
ens)
whe
reth
e re
circ
ulat
ion
flow
cou
ldca
use
the
debr
is to
be
swep
t to
the
scre
ens
befo
re it
set
tles
to th
e flo
or. T
he n
orth
edg
e of
the
north
con
tain
men
t re
circ
ulat
ion
scre
en fa
ce is
loca
ted
at le
ast 3
feet
, 6 in
ches
from
the
north
cor
ner
of th
e w
est w
all o
f ste
am g
ener
ator
com
partm
ent 2
(Roo
m 1
1202
), to
whi
ch th
e co
ntai
nmen
t rec
ircul
atio
n sc
reen
s ar
e at
tach
ed. P
lace
men
t of t
he n
orth
co
ntai
nmen
t rec
ircul
atio
n sc
reen
pre
vent
s de
bris
falli
ng in
to th
e ve
rtica
l acc
ess
corri
dor (
Roo
m 1
1204
) fro
m e
nter
ing
the
wat
er c
lose
r tha
n 3
feet
, 6 in
ches
from
th
e fa
ce o
f the
nor
th c
onta
inm
ent r
ecirc
ulat
ion
scre
en. S
tain
less
ste
el is
use
d on
th
e un
ders
ide
of th
e pl
ate
and
on s
urfa
ces
loca
ted
belo
w th
e pl
ate,
abo
ve th
e bo
ttom
of t
he s
cree
n fa
ce, e
xten
ding
at le
ast 8
feet
, 3 in
ches
per
pend
icul
ar to
the
front
and
at l
east
7 fe
et to
the
side
of t
he fa
ce o
f the
scr
eens
to p
reve
nt c
oatin
g de
bris
from
reac
hing
the
scre
ens.
AP
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ion
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32
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
The
cont
ainm
ent r
ecirc
ulat
ion
scre
ens
have
a p
rote
ctiv
epl
ate
that
islo
cate
d no
mor
e th
an 1
foot
, 3 in
ches
abo
ve th
eto
p of
the
face
of t
he s
cree
ns, w
hich
ext
ends
at le
ast 8
feet
,3
inch
es p
erpe
ndic
ular
to th
e fro
nt a
nd a
t lea
st 7
feet
to th
esi
de o
f the
face
of t
he s
cree
ns,t
o pr
even
t coa
ting
debr
is fr
omre
achi
ng th
e sc
reen
s.
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33
Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
The
surfa
ce m
ater
ials
use
d in
the
vici
nity
of t
he c
onta
inm
ent r
ecirc
ulat
ion
scre
ens
are
stai
nles
s st
eel.
In th
e vi
cini
ty o
f the
con
tain
men
t rec
ircul
atio
n sc
reen
s in
clud
es s
urfa
ces
loca
ted
abov
e th
e bo
ttom
of t
he re
circ
ulat
ion
scre
ens
up to
and
incl
udin
g th
e bo
ttom
sur
face
of t
he p
late
dis
cuss
ed in
subs
ectio
n 6.
3.2.
2.7.
1, a
nd th
e su
rface
s ex
tend
ing
at le
ast 8
feet
, 3 in
ches
pe
rpen
dicu
lar t
o th
e fro
nt a
nd a
t lea
st 7
feet
to th
e si
de o
f the
face
of t
he
scre
ens.
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Lice
nsin
g B
asis
Impa
cts
19E.
2.3.
2.7
Con
tain
men
t Rec
ircul
atio
n Sc
reen
sTh
e P
XS
con
tain
men
t rec
ircul
atio
n sc
reen
s m
ay h
ave
to fu
nctio
n in
th
e lo
nger
-term
dur
ing
a sh
utdo
wn
acci
dent
that
resu
lts in
AD
S
oper
atio
n. E
ffect
ive
scre
en d
esig
n, p
lant
layo
ut, a
nd o
ther
fact
ors
prev
ent c
logg
ing
of th
ese
scre
ens
by d
ebris
dur
ing
such
acc
iden
t op
erat
ions
.
•S
cree
ns h
ave
apr
otec
tive
plat
e lo
cate
d no
mor
e th
an 1
foot
, 3
inch
es a
bove
the
top
of th
e fa
ce o
f the
scr
eens
, whi
ch e
xten
dsat
le
ast 8
feet
, 3 in
ches
per
pend
icul
ar to
the
front
and
at l
east
7 fe
et
to th
e si
de o
f the
face
of t
he s
cree
ns.
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Wes
tingh
ouse
Non
-Pro
prie
tary
Cla
ss 3
© 2
016
Wes
tingh
ouse
Ele
ctric
Com
pany
LLC
. All
Rig
hts
Res
erve
d.
Dis
cuss
ion/
Que
stio
ns
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