ML19351C832

Proposed NRC SLR Lessons Learned Meeting December 12, 2019 - Industry Perspectives

ML19351C832
Person / Time
Site:	Nuclear Energy Institute
Issue date:	12/12/2019
From:	Blocher E, Earls C Nuclear Energy Institute
To:	William Burton NRC/NRR/DNRL/NLRP
Burton W. NRR-DNRL 415-6332
References
Download: ML19351C832 (5)

Text

12/11/2019 Proposed NRC SLR Changes:

Industry Perspectives Eric Blocher & Chris Earls December 12, 2019 1

Industry Perspectives Recommendations for Additional Changes EPRI Selective Leaching Task Force Proposed Industry Short List:

- Mechanical

- Structural

- Electrical

- AMR Standard Note F-J & UFSAR Supplement

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12/11/2019 Recommendations for Additional Changes

• AMP XI.S8 Protective Coating Monitoring & Maintenance

• Revise element 4 to state requirements of ASTM Spec D5163-08 paragraph 6

• Frequency of in-service coating inspections shall be determined by licensee. It is a good practice to perform inspections during each refueling outage

• AMP X.M2 Neutron Fluence Monitoring

• Address adequacy of RG 1.190 for extended beltline calculations

• AMP XI.E3A/B/C Electrical Insulation Not Subject to EQ

• Revise to allow manholes with level monitoring and alarms to be inspected at least once very five years.

• Revise structural AMRs to reduce plant-specific AMPs

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EPRI Selective Leaching Task Force The EPRI Selective Leaching Task Force and the NEI License Renewal Working Groups are working together to provide change recommendations for GALL-SLR and GALL Rev 2 AMP XI.M33 in early 2020

• Propose corrective action thresholds based on a graded approach

• Recommendations and associated justification to amend the 100% opportunistic inspection requirements to perform opportunistic inspections based on engineering evaluation

• Other clarifications could be proposed after the NEI License Renewal Working Group Meetings and SLTF Meeting in 2020

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12/11/2019 Proposed Industry Short List A limited list of changes is requested to be addressed on a priority basis to support near term applicants. The list is based upon the following considerations:

• Incorporate recent changes in Industry guidance documents that have a significant impact to aging management

• Promote a more efficient Staff review or Industry SLRA preparation by reducing AMP exceptions, plant-specific program AMR Lines, or AMR standard notes F-J

• AMP changes that significantly reduce plant operating costs

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Proposed Industry Short List - Mechanical

• XI.M16A PWR Vessel Internals & Associated AMRs

• Incorporate MRP-227 Rev 1-A as an acceptable basis for the Gap Analysis of PWR Vessel Internals

• EPRI Chemistry Guidance Changes

• EPRI 3002010645 R8 Secondary Chemistry (XI.M2)

• EPRI 3002001623 BWRVIP-190 R1 (XI.M2)

• EPRI 3003000590 R2 Closed-Cycle Cooling (XI.M21A)

• XI.M42 Internal Coatings/Linings

• Allow Fire Water System Program tests/inspections in lieu of AMP XI.M42 inspections for concrete linings or other coatings in fire water piping.

• XI.M12 Thermal Aging Embrittlement

• Allow 2019 ASME Code for CASS ferrite > 25%

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12/11/2019 Proposed Industry Short List - Structural

• Table 3.5-1 Structural AMRs With Plant Specific AMPS

• Reduce plant-specific AMP Structural AMRs for Inaccessible areas in SRP-SLR Table 3.5-1 items 3/11/12/14/42/47 thru 51

• FER 3.5.2.2.2.6 Add RPV Structural Steel

• Revise FER 3.5.2.2.2.6 or add a new FER for loss of fracture toughness & related reduction in strength due to irradiation embrittlement for RPV structural steel

• XI.S1 ASME Section XI, Subsection IWE

• Revise XI.S1 to perform a fatigue waiver calculation in lieu of the supplemental surface exam for pressure retaining components that are subject to cyclic loading but have no fatigue analysis

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Proposed Industry Short List - Elec, AMRs

• XI.E7 High Voltage Insulators

• Address polymer and other high voltage insulator materials

• Clarify AMP can manage medium voltage insulators

• XI.E3A/B/C Electrical Cable Insulation Not Subject to EQ

• Revise to allow manholes with level monitoring and alarms to be inspected at least once every five years

• AMR Standard Notes F-J

• Add new AMR lines to incorporate standard note lines F-J from Turkey Point, Peach Bottom & Surry SLRAs

• UFSAR Supplement

• Incorporate generic changes from Turkey Point, Peach Bottom & Surry SLRAs

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12/11/2019 Is there any information that requires follow-up?

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