ML20027D795
| ML20027D795 | |
| Person / Time | |
|---|---|
| Issue date: | 05/11/1981 |
| From: | Rosztoczy Z Office of Nuclear Reactor Regulation |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20027A669 | List:
|
| References | |
| FOIA-82-426, RTR-REGGD-01.089, RTR-REGGD-1.089 NUDOCS 8211100067 | |
| Download: ML20027D795 (4) | |
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NUCLEAR REGULATORY COMMISSION P
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i MEMORANDUM FOR:
George W. Knighton, Chief y
Research & Standards Coordination Branch 1
Division of Safety Technology FROM:
Zoltan R. Rosztoczy, Chief 1
Equipment Qualification Branch j
Division of Engineering 1
During the meeting between EQB and RES (April 29,1981) it was noted that the draft rule and R.G. 1.89 were not revised to incorporate the changes which were j
agreed on previously (meeting March 26,1981).
EQB additionally committed to provide comments on the new draft.
It was further agreed that representatives from EQB and RES would meet to discuss the comments. A meeting was held on May 7,1981 during which the EQB comments were pro'vided to RES. The coments are summarized in Attachment 1.
A copy of the comments were provided to the RES repr'esentatives during the meeting. Attachment 2 provides EQB's input relating to seismic and dynamic as well as mild environment qualification requirements.
4 Zoltan R. Rosztoczy, Ch'ief Equipment Qualification Bran' h c
Division of Engineering cc:
W. Johnston D. Sullivan, RES A. Hintze, RES
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e 8211100067 821014 A5 POR FOIA CURRAN 62-426 PDR
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dl ATTACHMENT #1 1
1 FQB Comments ore the Draft Rule I}
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and R.G. 1.89 i
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~ 'RULEMAKING
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Section I last sentence should be deleted.
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2.
Section II General requirerr.ents should be expanded to define
]j systems, components and subcomponents.
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Aging requirements should be expanded to include the requirements 1
that equipment must be aged in the same functional state it is used j
in the plant (c9. energized, de-energized).
3 4.
A paragraph regarding margin should be added.
a 5.
Discuss qualification parameters before discussing qualification method.
I 6.
Discuss all the environmental parameters.
7.
Combine under one heading the qualification methods discussed in III(A).,
(C) and (D).
8.
Add the qualification requirements for the mild environment.
9.
Add the section discussing implementation.
1 B,
REGULATORY GUIDE 1.89 f
1.
Revise all portions of'the regulatory guide as affected by the coments made on the rulemaking.
2.
Delete Appendix B and position 3-b.5.
3.
Replace the Appendix D and position 3.d with the position and Appendix D, as discussed in the "For Comment" version of NUREG-0588 modified by the effects of recirculatory fluid which were dis:ussed in Supplement 2 to the l
D0R Guideline.
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1 l-ATTACHMENT #2 I
E0B Input Relating to Seismic & Dynamic Loads 2
as well as Mild Environment Qualification I
Reouirement f
A Seismic and Vibratory Loads i
I Seismic and vibratory loads include the effects of loads from seismic, normal
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operation and postulated accident conditions and are characterized by response j
spectra or acceleration time histories. These characteristics, which are expressed in terms of frequency content and amplitude and which are derived from the structures or systems seismic and dynamic analyses, must be representative of the pertinent input motions at the equipment mounting locations.
Five.0BEs and one SSE should be included to produce postulated seismic effccts, whereas the consideration of other vibratory loads, either operational or postulated, j
are plant design specific.
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ATTACHttENT #2 i
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Equipment Oualification Requirement for Mild Environment i
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1 The documentation required to demonstrate qualification of equipment in a mild environment are the " Design / Purchase" specifications. The specifications shall
' i contain a description of the functional requirements for its specific environ-d mental zone during normal and abnormal environmental conditions. A well supported i
maintenance / surveillance program in conjunction with a good preventive maintenance program will. suffice to assure that equipment that meet their design / purchase specifications are qualified for their designed life.
Furthermore the maintenance / surveillance program Cita and records shall be revieaed periodically (not more than 18 months) to ensure that the design qualified life has not suffered thermal and cyclic degradation resulting from the accumulated stresses triggered by the abnormal environmental conditions 2
and the normal wear due to its service condition.
Engineering judgement shall be used to modify the replacement program and/or replace the equipment as deems necessary.
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