ML23068A026
| ML23068A026 | |
| Person / Time | |
|---|---|
| Issue date: | 03/20/2023 |
| From: | Dennis Andrukat NRC/NMSS/DREFS/RRPB |
| To: | |
| References | |
| NRC-2018-0291, RIN 3150-AK23, 88FR13717 | |
| Download: ML23068A026 (1) | |
Text
Proposed Rule:
ASME Code Case and ISI/IST Update Frequency
MA RCH 20, 2023 88 FR 13717 2
Introduction
Dennis Andrukat Rulemaki ng Project Manager 3
David Rudland: Inservice inspection and inservice examination and testing update intervals
Chakrapani Pani Basavaraju: Code Cases NRC Speakers - ASME BPV Code,Section III
Mike Benson: Code Cases - ASME BPV Code,Section XI
Thomas Scarbrough: Code Cases - ASME OM Code 4
Proposed Rule - Elements
Code of Record and ISI/IST interval updates
ASME Code Cases endorsed by NRC for use
- ASME BPV Code,Section III
- ASME BPV Code,Section XI
PROPOSED RULE:
Code of Record and ISI/IST interval updates
David Rudland Senior Technical Advisor for Materials, Division of New and Renewed Licenses, Office of Nuclear Reactor Regulation (NRR) 6
Background
EMBARK Venture Studio - Recommended efforts to streamline 10 CFR 50.55a - ML20153A752 SRM-SECY 0029 (ML21312A490), Commission approved staff request to
I ni tiate a rulemaki ng to extend the current 10-year Code of record (COR) update i nterv al to 20-years, after updati ng to the most recent Codes and addenda i ncorporated by reference i n § 50.55a
I ni tiate a potenti al subsequent rulemaki ng to extend COR update interval from 20- years to 24-years
Delegate signature authority to the Executi ve Director of Operations 7
Background
In early 2022, ASME published BPV Code Case N-921 and OM Code Case OMN-31, which provide for 12-year ISI and IST intervals, respectively, as an alternative to the 10-year intervals currently in the ASME codes. ASME requested Code Case N-921 be included in the Rev 40 rulemaking (ML22046A112)
SECY 0075 (ML22124A178) - Informational SECY - Staffs plan to address new information and changed circumstances that affect the implementation of SRM-SECY 0029 Combi ne the two proposed rulemaki ng i nto one Make conformi ng changes to 10 CFR 50 A ppendi x J A dd conformi ng and clari fying changes to address i ssues encountered duri ng the development of the proposed rule 8
SRM-SECY 0029 Background (ML21312A490)
I nformati onal SECY SECY 0075 (ML22124A178) 9 Combine the Two Proposed Rulemakings
Needed to avoid a misalignment, e.g., Proposed to condition both code 20- year COR interval with a 12-year cases to allow their use only by ISI/IST Interval licensees that have updated to Linking the COR update to the ASME the ASME BPV Code and ASME ISI/IST program interval to ensure OM Code, 2019-2020 editions alignment, e.g., COR interval is equal (latest editions incorporated into § to two consecutive ISI or IST program 50.55a) or later.
intervals once licensee has updated Consistent with Commission direction in to the most recent edition of the code SRM-SECY-21-0029 incorporated by reference in § 50.55a 10 Changes to 10 CFR Part 50, Appendix J
Appendix J contains requirements for containment leak testing (including containment isolation valves)
Type A tests for Option A requires three leak tests, the third must be performed when the plant is shutdown for the 10 -year plant inservice inspection. References § 50.55a for these tests
Staff proposes a revision to Appendix J to conform with the proposed changes to § 50.55a consistent with the alternative 12-year ISI/IST program interval 11 Proposed Definitions
Code of record Currently, 10 CFR 50.55a Code of record interval refers to the 120-month interval in a variety of Inservice examination and test (IST) interval ways leading to confusion when Inservice inspection (ISI) program differentiating between the ISI/IST interval and Inservice examination and testing program the COR interval Inspection interval 12
CODE OF RECORD
For the A SME BPV Code, Secti on XI,Section III or OM Code, the edi ti on (and addenda) i mplemented by a li censee i n accordance with the requi rements of § 50.55a Proposed Rule Details CODE OF RECORD INTERVAL
The period of ti me between the code 10 CFR 50.55a(y) of record updates required by 10 CFR 50.55a (f)(4) and (g)(4)
For licensees with codes of record prior to ASME BPV Code,Section XI, 2019 Edition, and OM Code, 2020 Edition, the code of record interval is the same as the inspection interval or inservice examination and test interval.
For licensees with codes of record of ASME BPV Code,Section XI, 2019 Edition and OM Code, 2020 Edition, or later, the code of record interval is two consecutive inservice inspection or inservice examination and test intervals.
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INSERVICE EXAMINATION AND TESTING (IST) PROGRAM The requirements for preservice and inservice examination and testing of pumps, valves, and Proposed Rule Details dynamic restraints to assess their operational readiness in nuclear 10 CFR 50.55a(y) power plants
INSERVICE EXAMINATION AND TEST (IST) INTERVAL
The inservice examination and test interval described by the licensees code of record 14
INSERVICE INSPECTION (ISI)
PROGRAM
The set of all administrative and technical requirements pertaining to periodic Proposed Rule Details examination of nuclear 10 CFR 50.55a(y) components, as specified in ASME BPV Code,Section XI
INSPECTION INTERVAL
The inservice inspection interval described by the licensees code of record 15
Most changes to these sections to reflect new definitions and provide consistent wording
We will discuss the proposed changes using a red-line strike-out the staff Proposed Rule Details developed 10 CFR 50.55a and Appendix J 16 ASME ISI / IST Interval
Must update to ASME 2019/2020 CURRENT PROPOSEDedi ti ons or l ater
10 or12 years years years ISI = IST ISI and/or IST (same as current interval code of record) 17 Code of Record Interval
Must update to ASME 2019/2020 CURRENT PROPOSEDedi ti ons or l ater
years
ISI = IST = Code ISI and/or IST ISI and/or IST of Record interval interval 18
PROPOSED RULE:
ASME Code Cases endorsed for use 19 NRC-endorsed ASME Code Cases
DG-1405: RG 1.84, Revision 40
BPV Code Section III DG-1406: RG 1.147, Revision 21
BPV Code DG-1407: RG 1.192, Revision 5 Section XI OM Code
DG-1408: RG 1.193, Revision 8
- ASME BPV Code, 2021 Edition, Supplements 0 Code Cases - through 2 (with an additional four code cases from Breakdown Supplement 3)
total number total number of code cases of approved 49 approved for 12 code cases use with conditions
BPV Section III: 13 approved for use, 2 with conditions; 4 disapproved for use;
BPV Section XI: 32 approved for use, 9 with conditions; 6 disapproved for use;
OM: 4 approved for use, 1 wi th conditions; 21 Code Cases - ASME BPV Code,Section III
Chakrapani Basavaraju Mechani cal Engi neer, Di vision of Engi neeri ng and External Hazards, NRR ASME BPV Section III 22 Code Cases
NRC staff reviewed 10 new and 3 revised code cases for draft RG1.84, Revision 40
10 New Code Cases without conditions (N-893, N-900, N-901. N-902, N-904, N-905, N-908, N-910, N-919, and N-920)
1 Rev ised Code case without condition: N-351-1
2 Rev ised Code Cases with conditions; N 21, and N-570- 3
N 21 Additional Materials for Subsection NF, Class 1, 2, 3, and MC Supports Fabricated by Welding,Section III, Division 1;
NRC placed 6 conditions
N-570- 3 Alternative Rules for Linear Piping and Linear Standard Supports for Classes 1, 2, 3, and MC,Section III, Division 1
Condition: Design for strength using the LRFD method of AISC N690-18 shall not be used 23 Code Cases - ASME BPV Code,Section XI
Mike Benson Materi als Engi neer, Di vision of New and Renewed Licenses, NRR ASME BPV Section XI Code 24 Cases
NRC staff reviewed 38 new and revised code cases for draft RG1.147, Revision 21
Selected code cases
N-716-3 on alternativ e classification and examination requirements: proposed condition prohibiting its use for plants licensed after January 1, 2012
N-880- 1 on alternative procurement requirements for nonstandard welded fittings: proposed condition to limit use of the case to NPS 2 or smaller fittings
N-906 on flaw ev aluation procedure for cast austenitic stainless steel piping: proposed condition that ensures a bounding toughness v alue is assumed in the ev aluation
N-921 on alternative 12-year inspection interv al: proposed condition to require licensee update to the 2019 edition or later before applying the code case 2525 Code Cases - ASME OM Code
Thomas Scarbrough Seni or Mechani cal Engi neer, Di vision of Engi neeri ng and External Hazards, NRR
This Photoby Unknown Author is licensed under CC BY-SA 26 ASME OM Code Cases
NRC staff reviewed 4 new code cases for draft RG 1.192, Revision 5
Draft includes the following new acceptable OM Code Cases:
OMN-28, A lternati v e Valv e Posi ti on Veri fi cati on A pproach to Sati sfy I STC-3700 for Valves Not Suscepti ble to Stem-Di sk Separati on
OMN-29, Pump Condition Monitoring Program
OMN-30, A lternati v e Valv e Posi ti on Veri fi cati on A pproach to Sati sfy I STC-3700
OMN-31, Alternative to Allow Extension of ISTA-3120 I nserv i ce Exami nati on and Test I nterv als from 10 Years to 12 Years [proposed condition requires use of 2020 Edition or more recent editions of ASME OM Code]
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BREAK 28
Questions & Answers
OPEN TO ALL 29
Closing Remarks
Dennis Andrukat Rulemaking Project Manager Denni s.A ndrukat@nrc.gov
Proposed Rule published March 6, 2023 (88 FR 13717)
Public Comment Period ends May 5, 2023 Docket ID: NRC-2018- 0291 (www.regulations.gov)