U.S. NRC and Industry Public Meeting

Buried/Underground Piping

American Society of Mechanical Enginee

April 25, 2013

Daniel W Lamond Daniel

W. Lamond

Automated Engineering Services (AES) Corporation
ASME SCXI Buried Component Activities

Committee Groups Relevant to Buried Compon• TG Buried Component Inspection & Test• TG Evaluation Procedures for Degraded 

Piping

• WG Pressure Testing• Special WG Nuclear Plant Aging Manage• SG Water Cooled Systems• SG Nondestructive Examination• SG Industry Experience for New Plants
ASME SCXI Buried Component Activities

Current Section XI Rules• IWA-5244, Buried Component Leakage T

– Visual of Annulus Visual of Annulus– Pressure Decay or Change in Flow– Unim

paired Flow 

• Code Case N-776, Ground Surface Exam

Program (Approved April 2010)

• Code Case N-806 (Approved June 2012)

– Evaluation of Metal Loss for Cl. 2&3 Buried M

Pipe with Back Pipe with Back

-Fill
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – Recent Timeline Recent Timeline• November 2010

→ TG Approved by Executive Committee Approved by Executive Committee→ Charter Established

• 2011 (January 31, May 9, August 8, November 7)

→ M b hi em

bership, It t n

teres

t G S D t C ll 

Groups, 

Scope, 

D

a

ta 

C

ollec

→ Initial Action Items & First Code Paragraph Consid

• 2012 (February 6, May 14, August 13, November 5)

→ Identification of Code Areas for Inclusion/Update→ Code Case Alternatives to IWA-5244→ Code Action for BP Risk Ranking and Inspections for BP Risk Ranking and Inspections

• 2013 (February 11)

→ Action Items (Definitions, Methods, Fukushima, In

L tt B ll t (L k T ti & Ri k R ki

)

→

L

etter 

B

all

o

ts (Lea

kage 

Testing 

& Ri

s

k

Ranking

)

→ Next Meeting in Miami on May 13, 2013
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – Goals• Consider All Stakeholders• Evaluate the Safety and Functional Impa

Recent Operating Experience

• Compile Industry Group Activities and Gu• Assess and Support Inspection Techniqu

Dl t eve opmen

t

• Codify Best Practices• Publish a Practical, Manageable set of 

Technically Sound Rules for Regulatory 

Endorsement
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – Scope• Buried and Underground Piping & Compo• Commission Activities• Industry Groups (NEI, EPRI, INPO, NACE• TG Charter

– Programmatic– Inspection & Testing– Mitigation, Repair, Replacement– D i d N Pl t Design an

d

New Plan

t

s
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – Scope, Phased Approach Scope, Phased Approach• Component Classifications

Safety Related

Cl d 1 2 d 3

Non-Safety Relate

Safety Relate

• Classe

d

1, 

2, an

d

3 M C id 

• Non-Classed

•

Many 

Considera

- Function

- Impact- Jurisdiction- Owner
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – Action Item Status Action Item Status

AI #1 Liaisons – NACE and Section V Initial CoAI #2 Develop Historical White Paper Develop Historical White Paper ClosedAI #3 Define Scope Initial CoAI #4 Compile Industry Papers Initial CoAI #5 List of BP Inspection Methods OpenAI #6 EPIX Operating Experience Initial CoAI #7 BPI Initiative Timeline ClosedAI #8 Codify New IWA-5244 Rules OpenAI #9 Risk Ranking Methodology OpenAI #10 Non Mandatory Non Mandatory App - IWA

-5244 Guide 5244 Guide Open

AI #11 Fukushima Lessons Learned ClosedAI #12 IWA-9000 Buried Comp Definition(s) OpenAI #13 Examination Category Tables Open
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #5, List of BP Inspection Methods AI #5, List of BP Inspection Methods• First Compilation, No Screening Criteria

Di t rec

t I di t

• Visual Inspection• Liquid Penetrant Testing

M ti P ti l T ti

Indirec

t

• Pipe-to-Soil Potential• Direct Current Voltage 

• Magnetic 

Parti

cle 

Testing P S / Alt 

• Guided Wave• Lamb Wave

R t Fi ld T ti

• Pearson 

Survey 

/ Alter

Voltage Gradient

• Close Internal Potentia

• Area Potential Earth C

• Remo

te Fi

eld

Testing

• Magnetic Flux Leakage• UT & Inspection Vehicles

• Area Potential Earth C• Soil Analysis

• Next : Industr

y Surve

y

– Current/Planned

• Radiography• Electromagnetic Technology

y y

Inspection Methods and Techni
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #8, Codify New #8, Codify New IWA-5244 Rules 5244 Rules

AI #10, Non Mandatory App AI #10, Non Mandatory App – IWA-52

5

•

Assess C t IWA Curren

t IWA

-5244, L k T t

Lea

kage 

Test

Rules for Buried Components

• L tt B ll t 12 L

etter 

B

all

o

t 12

-2562 (2) N 2562, (2)

New C do

de 

Cas

– For Comment Ballot (Vote: 1-6-0-11)– Theme: Basis for 09 Theme: Basis for 09

-14 in Leakage Testing? 

14 in Leakage Testing? 

• Letter Ballot 12-2562, New NM Appendix 

– For Comment Ballot (Vote: 1 For Comment Ballot (Vote:

1

-

6

-

0

-11)

– Theme: Basis for Acceptance Criteria and Ho
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #9, Risk Ranking Methodology AI #9, Risk Ranking Methodology• Consideration of Current Industry Method• Build off of other SCXI Risk Informed Act• Initial Draft in November Identified Challe

– Scope (Traditional SCXI Exemptions, e.g. sm– Consequence vs. Failure Potential Matrix– S f t R l t d Hi h Bi i R i i (N 

S

a

f

e

ty 

R

ela

t

e

d Hi

g

h, Binning 

Remaining (Nu

Safety vs. Industrial, Environmental, and Plan

• Letter Ballot Letter Ballot 13

-392 Risk Ranking Proce

392, Risk Ranking Proce

– For Comment Ballot (Vote: 9 Comment Ballo– Theme: To Be Discussed at Ma

y Meetin

g

y g
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #12, IWA #12, IWA-9000 Buried Component 9000 Buried Component 

Definition(s)

• Handout Discussed at February Mtg Handout Discussed at February Mtg• One Definition for Buried Components• O D fi iti f U d d C 

One 

D

efi

nition 

for 

U

n

dergroun

d

Compone

• Resultant Options:

1. Si il t NRC d fi iti f G ll Si

milar 

to NRC

d

efi

nition 

from 

G

all

2. Similar to NEI definition from 09-143. Hybrid

• Draft Revision to IWA-9000 Planned for M
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #13, Examination Category Tables AI #13, Examination Category Tables• Consider New Tables

– IWC-2500-1 Category C-

_ & IWD-2500-1 Category D-

• Inspect for Degradation, Not Leakage• R f N M d t A di R

e

ference 

New 

Man

d

a

tory 

Appendix 

for 

• Sponsors Assigned to Appendix Sections

–

Z

-1100 Scope 1100, Scope

– Z-1200, Components Subject To Examination, Risk Ra– Z-2000, Examination Methods– Z-3000, Acceptance Standards– Z-4000, Repair / Replacement Activities–

Z

-6000, Records and Reports

Z Records and Reports
ASME SCXI Buried Component Activities

Summary• Strengthening ASME Standards relative t

Buried Component Inspection Buried Component Inspection

• Consideration of Ongoing Industry Activit• Phased Approach to System Scope Phased Approach to System Scope• Enabling Clear Requirements and Consis

Fleet Im

plementation