U.S. NRC and Industry Public Meeting

Buried/Underground Piping

American Society of Mechanical Enginee

December 5, 2012

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 & I t t G Mem

bership 

& In

teres

t

Groups

→ Scope, Initial Action Items, Data Collection→ First Code Paragraph Considerations

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

→ Identification of Code Areas for Inclusion/Update

→ Code Case Alternatives to IWA Code Case Alternatives to IWA

-5244

→ Code Additions for BP Risk Ranking and Inspectio

• February 11, 2013

N t M ti i LA l

→

Nex

t

Meeting in 

Los 

Angeles
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 Appendix IWA Appendix IWA

-5244 Guide 5244 Guide Open

AI #11 Fukushima Lessons Learned OpenAI #12 IWA-9000 Buried Component 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

Direct• Visual Inspection• Liquid Penetrant Testing

Indirect• Pipe-to-Soil Potentia

• Liquid Penetrant Testing

• Direct Current Volta

• Magnetic Particle Testing• Guided Wave

• Direct Current Volta• Pearson Survey / Al

Current Voltage Gra

• Lamb Wave Close Internal Poten• Remote Field Testing• Magnetic Flux Leakage

• Close Internal Poten

• Area Potential Earth • Soil Analysis

• UT & Inspection Vehicles• Radiography• Electromagnetic Technology

Electromagnetic Technology
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #8, Codify New Rules AI #8, Codify New Rules• Update Current IWA-5244, Buried Compo• New Code Cases (2 out for Ballot)• New Non Mandatory Appendix (Guidance• Consider IWA-2200 Examination Method
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #9, Risk Ranking Methodology AI #9, Risk Ranking Methodology• Consideration of Current Industry Method

–

Approx. 3 in Practice

• Build off of other SCXI Risk Informed Act• Initial Draft in November Identified Challe

– Scope (Traditional SCXI Exemptions, e.g. sm– C F il P t ti l M t i Consequence vs. 

F

ailure 

P

o

tenti

al M

a

t

rix

– Safety Related High, Binning Remaining (Nu

Safety vs. Industrial, Environmental, and PlanSafety vs. Industrial, Environmental, and Plan

– Will Phased Approach Support Ranking
ASME SCXI Buried Component Activities

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

– IWC-2500-1 Category C-

_ & IWD-2500-1 Category D-

• New Shell Tables

– Parts Examined Parts Examined– Exam Requirements– Exam Method– Acceptance Criteria

– Extent of Exam

– Fre

q y uenc

y of Exam

• Inspect for Degradation, Not Leakage• Appendix for Rules such as Risk Rankin

g

pp g
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