ML20236B242
| ML20236B242 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 10/20/1987 |
| From: | Office of Nuclear Reactor Regulation |
| To: | |
| Shared Package | |
| ML20236B238 | List: |
| References | |
| NUDOCS 8710260030 | |
| Download: ML20236B242 (2) | |
Text
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NUCLEAR REGULATORY COMMISSION I
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO. 107 TO PROVISIONAL OPERATING LICENSE N0. DPR-20 CONSUMERS POWER COMPANY PALISADES PLANT DOCKET NO. 50-255 INTRODUCTION By application dated May 28, 1987, Consumers Power Company (the licensee) requested a change to the Technical Specifications to delete Tables 3.20.1 and 3.20.2 that listed the safety-related hydraulic and mechanical snubbers installed at Palisades.
This request is consistent with the NRC guidance 4
issued in Generic Letter 84-13 dated May 3, 1984.
In addition, the l
application requested transferring the numerical values of the acceptance criteria for drag force for the mechanical snubbers out of the Technical Specifications and into the maintenance procedure for performing the test.
Finally, functional testing requirements for snubbers of rated capacity greater than 50,000 pounds was proposed to be added to the Technical Specifications.
EVALUATION The operability requirement for hydraulic and mechanical snubbers is not 1
being changed by removing the listing of tF. specific snubbers in the Technical Specifications.
With this lisG ng in the Technical Specifications, a license amendment was required any time plant modifications rssulted in the addition or deletion of a snubber.
Specification 3.20 will continue to i
require the snubbers to be operable.
Although the licensee proposed to 1
include the lists of snubbers in Engineering Manual (EM) 09-07, this document I
is not described in the Final Safety Analysis Report (FSAR) and, therefore would not fall within the scope of 10 CFR 50.59.
The licensee has agreed that the identification of the applicable snubbers be added to the Updated FSAR.
Whenever a plant modification is made that would involve the addition or deletion of snubbers, the licensee must perform an evaluation to determine that the design requirements of the appropriate codes and standards identified in the FSAR are being met.
This evaluation will continue to be performed for such modifications.
In addition, with the snubbers now described in the FSAR, 10 CFR 50.59 would require the licensee's evaluation to determine that an unreviewed safety question, as defined therein, was not involved in the modification, or obtain NRC approval.
This maintains an acceptable control over the identification of the snubbers to which Specification 3.20 applies.
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. The transferring of the numerical values of the acceptance criteria for drag force for the mechanical snubbers from the Technical Specifications to the maintenance procedure is also acceptable.
The criteria are specified by the snubber manufacturer and may vary.
If snubbers are replaced with those of a different manufacturer, the changing of the number will no longer require a license amendment; however control is maintained by means of the maintenance procedure revision process.
Finally, the functional testing requirements for snubbers of rated capacity l
greater than 50,000 pounds exceed the requirements of the ASME Code and of the Standard Technical Specifications and are acceptable.
ENVIRONMENTAL CONSIDERATION This amendment involves a change in the installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20 and a change in a surveillance requirement.
. We have determined that the amendment involves no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significant increase in individual or cumulative occupational radiation exposure.
The Commission has previously issued a proposed finding that this amendment involves no significant' hazards consideration and there has been no public comment on such finding.
Accordingly, this amendment meets the eligibility criteria for categorical exclusion set forth in 10 CFR 51.22(c)(9).
Pursuant to 10 CFR 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of this amendment.
CONCLUSION We have concluded, based on the considerations discussed above, that (1) there is reasonable assurance that the health and safety of the public will not be endangered by operation in the proposed manner, and (2) such activities will be conducted in compliance with the Commission's regulations, and the issuance of the amendment will not be inimical to the common defense and security or to the health and safety of the public.
Date:
October 20, 1987 Principal Contributors:
T. V. Wambach
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