U.S. NRC and Industry Public Meeting

Buried/Underground Piping

American Society of Mechanical Enginee

April 4, 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

• Code Case N-806 (Proposed, Out for SC 

– Evaluation of Metal Loss, Cl. 2&3 Buried Met– TG Evaluation Procedures for Degraded Buri

TG Evaluation Procedures for Degraded Buri

– Committee and Staff review/comment/for vote– EPRI Corrosion Rate Data 

(tbd, A

pril 2012 R

( p 
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 Activities

→ First Code Paragraph Considerations

• 2012 (February 6)

→ Identification of Code Areas for Inclusion/Update Identification of Code Areas for Inclusion/Update

• May 14, 2012 (2Q12)

→ Next Meeting, in Nashville
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 dN es gn an

d

New Pl t an

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 OpenAI #2 Develop Historical White Paper ClosedAI #3 Define Scope Initial CAI #4 Compile Industry Compile Industry Papers Initial Initial C

C

AI #5 List of BP Inspection Methods OpenAI #6 EPIX Operating Experience Initial CAI #7 BPI Initiative Timeline ClosedAI #8 Codify New Rules OpenAI #9 Risk Ranking Methodology NewAI #10 Non Mandatory Appendix NewAI #11 Fukushima Lessons Learned NewAI #12 Examination Category Tables NewAI #12 Examination Category Tables New
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 IW

A-2200 Examination Methods

• Update IWA-9000 Glossary (New Definiti

• New IWx-2500 Inspection Requirements• Update IWx-3000 Acceptance Criteria• Option: Reference vs. Extract From NEI G• O

ption: Include as Section XI Appendix

• Option: Stand-Alone SCXI SubSection (IW
ASME SCXI Buried Component Activities

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

–

Approx. 3 in Practice

• Build off of other SCXI Risk Informed Act

and Successes

• Assess Existing Code RI Ranking / Class

• E WG Ri k I f d A ti iti Engage WG Ri

s

k In

forme

d

A

cti

vities
ASME SCXI Buried Component Activities

TG BCIT TG BCIT – AI #12, Examination Category Tables #12, Examination Category Tables• Consider New Tables

– IWC-2500-1 Category C-

_ & IWD-2500-1 Category D-

• New Shell Table

– 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
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