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From: Hoellman, JordanSent: Friday, June 03, 2016 12:47 PMTo: Vogtle PEmailsSubject: Non-proprietary slide presentation for June 9 Public Meeting on ASME Section XI

Preservice and Inservice Inspection LimitationsAttachments: 2016-06-09 ASME Section XI PSI-ISI Inspection Limitations Slides (Non-Proprietary).pdf

Hearing Identifier: Vogtle_COL_Docs_Public Email Number: 35 Mail Envelope Properties (696b2e94386f4128a46a233698fe4eaa) Subject: Non-proprietary slide presentation for June 9 Public Meeting on ASME Section XI Preservice and Inservice Inspection Limitations Sent Date: 6/3/2016 12:47:02 PM Received Date: 6/3/2016 12:47:03 PM From: Hoellman, Jordan Created By: Jordan.Hoellman2@nrc.gov Recipients: "Vogtle PEmails" <Vogtle.PEmails@nrc.gov> Tracking Status: None Post Office: HQPWMSMRS03.nrc.gov Files Size Date & Time MESSAGE 3 6/3/2016 12:47:03 PM 2016-06-09 ASME Section XI PSI-ISI Inspection Limitations Slides (Non-Proprietary).pdf 634051 Options Priority: Standard Return Notification: No Reply Requested: No Sensitivity: Normal Expiration Date: Recipients Received:

Wes

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ouse

Non

-Pro

prie

tary

Cla

ss 3

© 2

016

Wes

tingh

ouse

Ele

ctric

Com

pany

LLC

. All

Rig

hts

Res

erve

d.

1

May

26,

201

6

AS

ME

Sec

tion

XI P

rese

rvic

e an

d In

serv

ice

Insp

ectio

n Li

mita

tions

(Non

-Pro

prie

tary

)

AP

P-G

W-G

LY-1

06 R

evis

ion

0

2

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

Obj

ectiv

e an

d A

gend

aO

bjec

tive:

•E

ngag

e th

e N

RC

Sta

ff in

a te

chni

cal e

xcha

nge

to d

iscu

ss d

esig

n fo

r ins

pect

abili

ty c

halle

nges

. •

Info

rm th

e N

RC

Sta

ff of

the

issu

e, p

rese

nt th

e pr

opos

ed p

ath

forw

ard

and

then

rece

ive

feed

back

on

the

appr

oach

.

Age

nda:

•B

ackg

roun

d•

Pro

blem

Sta

tem

ent

•Te

chni

cal R

esol

utio

n •

Lice

nsin

g R

esol

utio

n•

Dis

cuss

ion

AP

P-G

W-G

LY-1

06 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.

3

Bac

kgro

und

AP

P-G

W-G

LY-1

06 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.

Req

uire

men

ts•

10 C

FR 5

0.55

a(g)

(3)(

i) an

d (ii

) pro

vide

s th

e in

serv

ice

insp

ectio

n (IS

I) pr

ogra

m

desi

gn a

nd a

cces

sibi

lity

requ

irem

ents

for C

lass

1, 2

, and

3 c

ompo

nent

s an

d su

ppor

ts a

s fo

llow

s:–

Com

pone

nts

(incl

udin

g su

ppor

ts) t

hat a

re c

lass

ified

as

AS

ME

Cod

e C

lass

1, 2

, and

3 m

ust b

e de

sign

ed a

nd b

e pr

ovid

ed w

ith a

cces

s to

ena

ble

the

perfo

rman

ce o

f ins

ervi

ceex

amin

atio

n of

thes

e co

mpo

nent

s an

d m

ust m

eet t

he p

rese

rvic

eex

amin

atio

n re

quire

men

ts s

et fo

rth in

the

appl

icab

le

editi

ons

and

adde

nda

of S

ectio

n III

or S

ectio

n X

I of t

he A

SM

E B

PV

Cod

e

•A

SM

E B

PV

Cod

e S

ectio

n X

I req

uire

s al

l Cla

ss 1

, 2, a

nd 3

wel

ds to

be

exam

ined

via

non

-de

stru

ctiv

e ex

amin

atio

n (N

DE

). Th

e sc

ope

of th

ese

exam

inat

ions

is d

efin

ed a

s th

e pr

eser

vice

and

inse

rvic

ein

spec

tion

prog

ram

. The

pre

serv

ice

insp

ectio

n (P

SI)

serv

es a

s th

e ba

selin

e ex

amin

atio

n fo

r the

inse

rvic

ein

spec

tion

(ISI)

prog

ram

(thr

ough

out t

he li

fe o

f the

pl

ant).

•Th

e A

P10

00 U

FSA

R (S

ectio

n 5.

2.4.

2) re

quire

s bo

th P

SI a

nd IS

I pro

gram

s to

be

deve

lope

d in

acc

orda

nce

with

10C

FR50

.55a

(g) a

nd A

SM

E B

PV

Cod

e S

ectio

n X

I req

uire

men

ts:

–Th

e co

mpo

nent

s an

d w

elds

requ

iring

Inse

rvic

e in

spec

tion

are

desi

gned

to a

llow

for t

he a

pplic

atio

n of

th

e re

quire

d In

serv

ice

insp

ectio

n m

etho

ds, t

hat i

s, s

uffic

ient

cle

aran

ce fo

r per

sonn

el a

nd e

quip

men

t, m

axim

ized

exa

min

atio

n su

rface

dis

tanc

es, t

wo-

side

d ac

cess

, fav

orab

le m

ater

ials

, wel

d jo

int

sim

plic

ity, e

limin

atio

n of

geo

met

rical

inte

rfere

nces

, and

pro

per w

eld

surfa

ce p

repa

ratio

ns.

AP

P-G

W-G

LY-1

06 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.

AP

1000

PS

I Pro

gram

Pla

ns•

Wes

tingh

ouse

has

dev

elop

ed th

e P

SI p

rogr

ams

for b

oth

the

Vog

tle

Uni

ts 3

& 4

and

V.C

. Sum

mer

Uni

ts 2

& 3

Ow

ners

.–

Ther

e ar

e ap

prox

imat

ely

2200

item

s su

bjec

t to

exam

in e

ach

of th

e P

SI p

rogr

am p

lans

. –

Of t

he 2

200

exam

s th

ere

are

appr

oxim

atel

y 60

0 st

ainl

ess

stee

l (S

S)

pipi

ng w

eld

exam

s:•

500

Cla

ss 1

SS

pip

ing

wel

ds

4” n

omin

al p

ipe

size

(NP

S).

•28

Cla

ss 2

SS

pip

ing

wel

ds >

4” N

PS

requ

iring

ultr

ason

ic te

stin

g (U

T).

•20

Cla

ss 1

SS

pip

ing

wel

ds 2

” and

3” N

PS

, req

uirin

g ex

ams

beca

use

they

are

hig

h pr

essu

re C

VS

wel

ds.

•20

SS

pip

ing

wel

ds, 3

” and

4” N

PS

, req

uirin

g ex

ams

beca

use

they

re

side

with

in th

e br

eak

excl

usio

n zo

ne (B

EZ)

.

AP

P-G

W-G

LY-1

06 R

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ion

0

6

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.

AS

ME

Sec

tion

XI P

SI/I

SI R

equi

rem

ents

•P

erfo

rman

ce d

emon

stra

tion

of e

quip

men

t, pr

oced

ures

, and

pe

rson

nel i

n co

mpl

ianc

e w

ith S

ectio

n X

I App

endi

x V

III

Sup

plem

ent 2

(Wro

ught

Aus

teni

tic S

tain

less

Ste

el P

ipin

g W

elds

) and

Sup

plem

ent 3

(Fer

ritic

Pip

ing

Wel

ds)

•P

DI-U

T-2

Qua

lifie

d P

roce

dure

for W

roug

ht A

uste

nitic

SS

Pip

ing

Wel

ds•

Whe

re d

ual-s

ided

acc

ess

is n

ot p

ossi

ble,

sin

gle-

side

d ex

amin

atio

ns a

re

not q

ualif

ied

for f

ull c

over

age.

How

ever

, sup

plem

enta

l exa

min

atio

n of

th

e fa

r sid

e is

requ

ired.

•P

DI-U

T-1

Qua

lifie

d P

roce

dure

for W

roug

ht F

errit

icP

ipin

g W

elds

•W

here

dua

l-sid

ed a

cces

s is

not

pos

sibl

e, s

ingl

e-si

ded

exam

inat

ions

are

qu

alifi

ed to

dem

onst

rate

full

cove

rage

.

Ther

efor

e, fo

r Fer

ritic

wel

ds s

ingl

e si

ded

exam

inat

ion

of w

elds

is a

llow

ed. N

ot

appl

icab

le to

sta

inle

ss s

teel

. A

PP

-GW

-GLY

-106

Rev

isio

n 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.

Exa

min

atio

n R

equi

rem

ents

ASM

E C

ode

Sect

ion

XI re

quire

s th

e in

ner 1

/3T

of th

e w

eld

and

0.25

” of

adj

acen

t bas

e m

etal

, on

both

sid

es o

f the

wel

d to

e, b

e ex

amin

ed fo

r axi

al a

nd c

ircum

fere

ntia

l fla

ws.

AS

ME

Exa

m V

olum

e

SS P

ipe

SS P

ipe

AS

ME

Wel

d0.

25”

1/3T

AP

P-G

W-G

LY-1

06 R

evis

ion

0

8

Wes

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ouse

Non

-Pro

prie

tary

Cla

ss 3

© 2

016

Wes

tingh

ouse

Ele

ctric

Com

pany

LLC

. All

Rig

hts

Res

erve

d.

Qua

lifie

d M

etho

d fo

r SS

Wel

dsS

can

Ext

ent

•Fo

r aus

teni

tic p

ipe

wel

ds, c

urre

nt p

roce

dure

PD

I-UT-

2, q

ualif

ied

per S

ectio

n X

I, A

ppen

dix

VIII

, S

uppl

emen

t 2, r

equi

res

dual

sid

ed a

cces

s to

cla

im fu

ll ex

amin

atio

n co

vera

ge fo

r circ

umfe

rent

ial

and

axia

l fla

w d

etec

tion

and

leng

th s

izin

g of

the

exam

inat

ion

volu

me.

•

PD

I-UT-

2 re

quire

s “b

est e

ffort”

exa

min

atio

ns o

f the

far s

ide

of th

e w

eld

but d

oes

not a

llow

in

clus

ion

of th

e fa

r sid

e ex

amin

atio

ns in

the

cove

rage

cal

cula

tions

whe

n ex

ams

can

only

be

perfo

rmed

from

a s

ingl

e si

de.

SS P

ipe

SS P

ipe

UT

Tran

sduc

er

AS

ME

Exa

m V

olum

e

AP

P-G

W-G

LY-1

06 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.

9

Pro

blem

Sta

tem

ent

AP

P-G

W-G

LY-1

06 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.

AS

ME

Sec

tion

III D

esig

n R

equi

rem

ents

•A

P10

00 v

alve

des

igns

mee

t the

requ

irem

ents

of A

SM

E

B16

.34

and

AS

ME

Sec

tion

III N

B/N

C-4

000

for m

inim

um

wal

l thi

ckne

ss (t

M)

•A

flat

end

wel

d tra

nsiti

on w

ould

allo

w fo

r bet

ter

insp

ecta

bilit

y, h

owev

er, t

he A

SM

E b

ound

ary

(i.e.

, tM) a

nd

pipe

noz

zle

load

ing

wou

ld n

ot b

e m

et

Sect

ion

III re

quire

men

ts a

re m

et b

ut c

anno

t be

insp

ecte

d as

requ

ired

by S

ectio

n XI

AP

P-G

W-G

LY-1

06 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.

AS

ME

Sec

tion

XI E

xam

inat

ion

Cat

egor

ies

& C

over

age

•Th

ree

cate

gorie

s of

wel

ds w

ith e

xam

inat

ion

cove

rage

co

ncer

ns h

ave

been

iden

tifie

d:

–C

ateg

ory

1: fo

rged

pip

e to

cas

t aus

teni

tic S

S (C

AS

S) v

alve

w

elds

•Q

ualif

ied

exam

inat

ion

cove

rage

will

be a

ppro

xim

atel

y 50

%

–C

ateg

ory

2: fo

rged

pip

e to

forg

ed a

uste

nitic

SS

val

ve w

elds

•Q

ualif

ied

exam

inat

ion

cove

rage

will

be a

ppro

xim

atel

y 50

%

–C

ateg

ory

3: fo

rged

pip

e to

forg

ed a

uste

nitic

SS

fitti

ng w

elds

•U

T co

vera

ge e

xam

s w

ere

perfo

rmed

to c

onfir

m th

at th

is is

not

a

glob

al c

once

rn, t

here

may

be

min

imal

situ

atio

ns w

here

> 9

0%

cove

rage

can

not b

e ac

hiev

edA

dditi

onal

info

rmat

ion

abou

t eac

h ca

tego

ry w

ill b

e pr

esen

ted

on th

e fo

llow

ing

slid

esA

PP

-GW

-GLY

-106

Rev

isio

n 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.

Cat

egor

y 1:

Pip

e to

CA

SS

Val

ve W

elds

Fifty

-two

(52)

of t

he im

pact

ed v

alve

s ha

ve a

wel

d be

twee

n a

CA

SS

(S

A35

1 C

F3M

) val

ve b

ody

and

a fo

rged

aus

teni

tic s

tain

less

ste

el

pipe

. •

Sec

tion

XI,

App

endi

x V

III S

uppl

emen

t 2 q

ualif

ied

proc

edur

es a

ddre

sses

au

sten

itic

stai

nles

s st

eel m

ater

ials

exc

ept f

or C

AS

S.

•S

ectio

n X

I, A

ppen

dix

VIII

Sup

plem

ent 9

add

ress

es q

ualif

icat

ion

re

quire

men

ts fo

r CA

SS

pip

ing

wel

ds.

–A

s of

the

curre

nt p

ublis

hed

vers

ion

of th

e co

de, t

his

supp

lem

ent i

s st

ill lis

ted

as “I

n th

e co

urse

of p

repa

ratio

n”.

–N

o ot

her p

ublis

hed

guid

ance

ava

ilabl

e to

qua

lify

proc

edur

es fo

r ex

amin

ing

CA

SS

.•

The

exam

inat

ion

limita

tions

are

driv

en b

y bo

th th

e la

ck o

f a q

ualif

ied

met

hod

to p

erfo

rm th

e ex

ams

from

the

valv

e bo

dy s

ide

of th

e w

eld

(dua

l sid

ed

exam

s ar

e re

quire

d fo

r SS

) and

the

geom

etry

of t

he v

alve

bod

y.•

Thes

e ex

amin

atio

n lim

itatio

ns a

re c

onsi

sten

t with

thos

e th

at e

xist

in c

urre

nt

oper

atin

g pl

ants

Qua

lifie

d ex

amin

atio

n co

vera

ge w

ill b

e ap

prox

imat

ely

50%

for C

ateg

ory

1 w

elds

AP

P-G

W-G

LY-1

06 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.

Cat

egor

y 1:

Exa

min

atio

n Li

mita

tion

Forg

ed A

uste

nitic

SS

Pipe

Cas

t Aus

teni

tic S

S Va

lve

Bod

y Exam

inat

ion

Lim

itatio

n fo

r C

ASS

Ach

ieva

ble

Exam

Vol

ume

UT

Tran

sduc

er

Sm

ooth

ed a

nd c

ondi

tione

d w

eld

surfa

ce

AP

P-G

W-G

LY-1

06 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.

Cat

egor

y 1:

Sum

mar

y of

Impa

cted

Val

ves

(a,c

)

AP

P-G

W-G

LY-1

06 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.

Cat

egor

y 2:

Pip

e to

For

ged

Val

ve W

elds

[

] (a,

c)

•Th

e lim

itatio

ns a

ssoc

iate

d w

ith th

is c

ateg

ory

are

driv

en b

y th

e ge

omet

ry o

f the

val

ves.

•S

uffic

ient

acc

ess

on th

e O

D s

urfa

ce o

f the

val

ve is

not

av

aila

ble.

•Th

ese

exam

inat

ion

limita

tions

are

con

sist

ent w

ith th

ose

that

ex

ist i

n cu

rrent

ope

ratin

g pl

ants Qua

lifie

d ex

amin

atio

n co

vera

ge w

ill b

e ap

prox

imat

ely

50%

for C

ateg

ory

2 w

elds

AP

P-G

W-G

LY-1

06 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.

Cat

egor

y 3:

Fitt

ing

Wel

ds

Ther

e ar

e fif

teen

(15)

dis

tinct

fitti

ng c

onfig

urat

ions

with

in th

e A

P10

00 P

SI P

rogr

am m

ade

from

forg

ed a

uste

nitic

sta

inle

ss

stee

l. –A

SM

E B

16.9

tigh

tly c

ontro

ls th

e pr

essu

re c

lass

of t

he fi

tting

s.

How

ever

, the

out

side

dim

ensi

ons

(OD

) of s

tand

ard

fittin

gs a

re

not t

ight

ly c

ontro

lled.

The

out

side

dim

ensi

on is

crit

ical

to

dete

rmin

e th

e in

spec

tabi

lity

of th

e pi

pe fi

tting

wel

ds.

–Th

is s

ituat

ion

resu

lts in

min

or v

aria

tion

in O

D c

onfig

urat

ion

whi

ch m

ay im

pact

insp

ectio

n co

de re

quire

d vo

lum

e (C

RV

).–

The

fittin

gs u

sed

in th

e A

P10

00 d

esig

n ar

e st

anda

rd fi

tting

de

sign

s us

ed th

roug

hout

the

indu

stry

.–

Indu

stry

exp

erie

nce

has

not s

how

n si

gnifi

cant

issu

es w

ith

limita

tions

on

fittin

gs.

UT

cove

rage

exa

ms

wer

e pe

rfor

med

to

conf

irm th

at th

is is

not

a g

loba

l con

cern

, th

ere

may

be

min

imal

situ

atio

ns w

here

> 90

% c

over

age

cann

ot b

e ac

hiev

edA

PP

-GW

-GLY

-106

Rev

isio

n 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.

Cat

egor

y 3:

Sum

mar

y of

Impa

cted

Fitt

ings

(a,c

)

AP

P-G

W-G

LY-1

06 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

Tech

nica

l Res

olut

ion

AP

P-G

W-G

LY-1

06 R

evis

ion

0

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.

Tech

nica

l Res

olut

ion

•A

repo

rt w

ith p

ropo

sed

alte

rnat

ive

will

cove

r all

thre

e ca

tego

ries

of w

elds

dis

cuss

ed a

nd in

clud

e:

–E

xam

inat

ion

cove

rage

sum

mar

y–

Tech

nica

l bas

is a

nd ju

stifi

catio

n fo

r pro

pose

d al

tern

ativ

e

•Te

chni

cal B

asis

for P

ropo

sed

Alte

rnat

ive

–A

uste

nitic

SS

(cas

t and

forg

ed) i

s hi

ghly

resi

stan

t to

crac

king

an

d co

rros

ion

in P

WR

s–

No

know

n de

grad

atio

n m

echa

nism

s be

yond

fatig

ue•

Per

Sec

tion

III N

B-3

000,

the

iden

tifie

d de

sign

loca

tions

are

re

quire

d to

be

chec

ked

for f

atig

ue–

Thic

knes

s an

d se

ctio

n m

odul

us o

f the

val

ves

are

requ

ired

to b

e 10

% g

reat

er th

an a

ssoc

iate

d pi

ping

AP

P-G

W-G

LY-1

06 R

evis

ion

0

20

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.

Bas

es fo

r Pro

pose

d A

ltern

ativ

eP

ropo

sed

alte

rnat

ive

will

have

a s

imila

r tec

hnic

al b

asis

to th

e fo

llow

ing

code

cas

es:

•C

ode

Cas

e N

-481

, for

pum

p ca

sing

s–

Acc

epte

d as

a C

ode

Cas

e by

AS

ME

in 1

989

–A

ccep

ted

by N

RC

in R

G 1

.147

, Rev

. 9 (A

pril

1992

)–

Cod

e in

corp

orat

ion

of N

-481

, int

o Ta

ble

IWB

-250

0•

2000

Add

enda

of S

ectio

n X

I (A

ctio

n B

C-0

0-02

8)•

2000

Add

enda

end

orse

d by

NR

C S

epte

mbe

r 200

2

•C

ode

Cas

e N

-770

, for

the

stai

nles

s st

eel s

ide

of d

issi

mila

r m

etal

(DM

) wel

ds–

Cod

e C

ase

N-7

70-1

end

orse

d an

d m

ade

man

dato

ry b

y N

RC

th

roug

h 10

CFR

50.

55a,

Jun

e 20

11 Cod

e C

ase

N-4

81 a

nd N

-770

are

di

scus

sed

on th

e fo

llow

ing

slid

esA

PP

-GW

-GLY

-106

Rev

isio

n 0

21

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.

Cod

e C

ase

N-4

81•

Tech

nica

l jus

tific

atio

n de

velo

ped

for c

ode

case

N-4

81 w

ill be

us

ed to

reso

lve

insp

ecta

bilit

yis

sues

:–

Vol

umet

ric e

xam

inat

ions

(i.e

., U

T) o

f CA

SS

wel

ds re

plac

ed

with

a v

isua

l exa

min

atio

n (V

T) fo

r pum

p ca

sing

wel

ds–

Flaw

tole

ranc

e ev

alua

tion

was

requ

ired

•A

SM

E S

ectio

n X

I Tab

le IW

B-2

500-

1 in

corp

orat

ed th

e N

RC

st

aff e

ndor

sed

code

cas

e in

200

0 A

dden

dum

, with

two

chan

ges:

–Fl

aw to

lera

nce

eval

uatio

n re

quire

men

t was

rem

oved

(bas

ed o

n su

cces

sful

cal

cula

tiona

ldem

onst

ratio

n of

flaw

tole

ranc

es)

–V

alve

bod

ies

adde

d du

e to

sim

ilar d

esig

n re

quire

men

ts to

pu

mps

AP

P-G

W-G

LY-1

06 R

evis

ion

0

22

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.

Cod

e Im

plem

enta

tion

of N

-481

(200

0 -2

007)

AP

P-G

W-G

LY-1

06 R

evis

ion

0

23

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.

Cod

e Im

plem

enta

tion

of N

-481

(200

8A)

AP

P-G

W-G

LY-1

06 R

evis

ion

0

24

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.

Cod

e Im

plem

enta

tion

of N

-481

(200

8A)

Take

n di

rect

ly fr

om th

e C

ode

actio

n, a

s in

terp

rete

d by

Ree

dy A

ssoc

iate

s

Exp

lana

tion

for t

he 2

008

Rev

isio

n:

AP

P-G

W-G

LY-1

06 R

evis

ion

0

25

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.

Cod

e C

ase

N-7

70 (A

noth

er e

xam

ple

for r

educ

ed

requ

irem

ents

on

SS

Wel

ds):

•P

rovi

des

enha

nced

exa

min

atio

n re

quire

men

ts fo

r su

scep

tible

DM

wel

ds•

Man

dato

ry th

roug

h 10

CFR

50.

55a,

but

doe

s notr

equi

re

volu

met

ric e

xam

inat

ions

of c

ast s

tain

less

ste

el p

ortio

ns o

f su

scep

tible

wel

ds•

Sim

ilar b

asis

to N

-481

, mat

eria

ls a

re re

liabl

e an

d no

t su

scep

tible

to a

ge-re

late

d de

grad

atio

n

Cod

e C

ase

N-7

70

AP

P-G

W-G

LY-1

06 R

evis

ion

0

26

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.

Ove

rvie

w: L

icen

sing

Res

olut

ion

Pat

h•

A p

ropo

sed

alte

rnat

ive,

follo

win

g th

e gu

idan

ce o

f 10

CFR

50.

55a

will

be

subm

itted

to th

e N

RC

sta

ff fo

r rev

iew

and

app

rova

l•

A s

ubse

quen

t non

-LA

R d

epar

ture

to re

view

UFS

AR

sub

sect

ion

5.2.

4.2

will

be im

plem

ente

d (a

,c)

AP

P-G

W-G

LY-1

06 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.

27

Dis

cuss

ion

AP

P-G

W-G

LY-1

06 R

evis

ion

0