ML20085A050

Rev 2 to ISI Exam Program

ML20085A050
Person / Time
Site:	Perry
Issue date:	02/07/1995
From:	Portmann R CENTERIOR ENERGY
To:
Shared Package
ML20084U715	List: ML20085A050 PY-CEI-NRR-1953, Informs That Inservice Exam Program for Plant Has Been Revised Per 10CFR50.55.Forwards Rev 2,Temporary Change 2 to Vol 1 of Pnpp Isep
References
PROC-950207, NUDOCS 9506140041
Download: ML20085A050 (3)

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INPP in. 7310 Ikn. 2/92 PAP-0522 lui - 2 IG.V. IIGUGEPICN TIllE N1(IN. tm 04LY IIGIGLTHN OH/D Vol. 1 10.(I/IEP) 2 Inservice Inspection Examimtion Program CfJUJSTUJ(S):

tkxx2 LIST FRJI ATrNND PNJ:

1-357, 1-358 IG'RIN:

1. To inpleontent Tednical Specification danges, ref. Amerximent 68.

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. q 7.1.7 Transient Event h)

's/ An unexpected or potential damaging occurrence which was determined

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from review of operating data or during a visual inspection /

examination.

7.1.8 Type A snubber of the same design (mechanical or hydraulic) and manufacturer. >

7.2 Exemption Snubbers are required to satisfy both the technical specifications and ASME Code scope requirements, therefore two exemption criteria exist.

1. Technical Specifications (T/S) k Snubbers not attached to safety class systems (1, 2, or 3), nor considered in the design as affecting a safety class system, are exempt from examination / inspection and testing requirement.

2. ASME Code Snubbers selected for code examinations shall be the supports of those components that are required to be examined under IWB, IWC, and IWD during the first inspection interval.

() 7.3 Examination Selection Process Snubber examination / inspection selections are different for both technical specifications and the ASME Code. The selection process is as follows:

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1. Technical Specifications (T/S)

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Routine T/S snubber selection is based on each snubber type and  !

category (accessible / inaccessible) . The visual inspection frequency for each snubber type and category shall be determined based on the )

criteria provided in Technical Specification Table 4.7.4-1. The  !

initial inspection interval utilizing this criteria shall be 18 T" months, beginning from the conclusion of the last visual inspection l conducted during RF04. Additionally, T/S snubbers shall be examined prior to and after performance of repairs, replacement or testing.

Also, snubbers attached to sections of systems that have experienced an unexpected or potentially damaging transient shall be inspected (accessible systems within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and inaccessible systems within **1 1

six nonths).

2. ASME Code All code snubbers shall be examined within each interval and each interval shall use a subdivision of periods to determine examination percentage requirements.

requirements. Reference code inspection and program b

TC/VAX/Page 1 of 2 1-357 Rev. 2

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