ML20009E051
| ML20009E051 | |
| Person / Time | |
|---|---|
| Issue date: | 06/30/1981 |
| From: | NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | |
| Shared Package | |
| ML17192A228 | List: |
| References | |
| REGGD-01.136, REGGD-1.136, NUDOCS 8107270033 | |
| Download: ML20009E051 (1) | |
Text
r VALUE/ IMPACT STATEMENT Description The value/ impact of positions of this revision to the guide are discussed below:
This Revision 2 to Regulatory Guide 1.136 provides
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information regarding the NRC staff's positions on the Regulatory Positions C.1, C.7, C.10, and C.ll should have acceptability for NRC licensing actions of Articles CC-1000, no appreciable impact on the industry or the public since
-2000, -4000, -5000, and -6000 of the " Code for Concrete they recommend generally accepted construction practice.
Reactor Vessels and Containments"* published jointly by the American Society of Mechanical Engineers (ASME Regulatory Position C.2 recommends the use of the Boiler and Pressure Vessel Code, Section Ill, Division 2, more detailed recommendations of Regulatory Guide 1.107, 1980 Edition) and the American Concrete Institute ( ACI which include a reference to the existing Code requirements Standard 359-80). In those areas where the NRC staff finds of CC-2243 where appropriate. The value/ impact and provisions of the referenced Code insufficient for licensing rationale for recommendations in Regulatory Guide 1.107 purposes, supplementary guidelines are given in the regula-have been thoroughly discussed in the resolution of public tory position.
comments on that guide and during the public meeting in November 1976.
Following issue of Revision 2, this guide will be periodi-cally updated to stay current with the ASME Code, Sec-Regulatory Positions C.3, C.4, C.5, and C.10 emphasize tion 111, Division 2. This will be done under procedures the need to prequalify prestressing system components by similar to those under which Regulatory Guides 1.84 and adequate testing. These positions are consistent with the 1.85 are updated in the endorsement of ASME Code Cases.
way the previously approved prestressing system com-ponents were required to be qualified. The NRC staff Value believes that th Code lacks these specific requirements.
They would he g ensure the safety and integrity of the issuance and implementation of this guide will provide qualified prestr mng system during the useful life of the the NRC reviewers and applicants a common basis for containmen t.
" heir impact on the industry should be understanding the Code requirements for materials, construc-minimal.
tion, and testing of concrete containments thus mininizing
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b potential subjective interpretations or. 3 degree of accept-Regulatory Positions C.6 and C.13 remain essentially ability for ma:erials, construction, and testing of concrete unchanged from the November 1979 issue of this guide for containments.
public comment.
Impact Regulatory Position C.9 represents an editorial correction to eliminate a contradiction in the 1980 edition of the Code.
Most Code requirements are now being accepted by the industry and NRC. Therefore, the endorsement of these Regulatory Position C.12 has been revised to reflect Code seguirements would have no additional impact on public comments received and to fulfill a need without any industry.
negative impact on the industry.
Recommendations Copies may be obtained from the American So iety of Mechan.
Revision 2 of the guide should be issued for implementa-Nrk",Ne"*Nor "Ioon\\",$" rye"# Amer c'In Yo'ncr'e eS"IrYate',
tion as described in Section D, " Implementation," of the 191 s0 Detroit, Michigan 482 t 9.
guide.
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