ML20213F184

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Safety Evaluation Re Util 850614 Request for Approval to Use ASME Boiler & Pressure Vessel Code,Section XI,1983 Edition, Winter 1984 Addenda,Subsection IWA 2213.NRC Evaluation of Winter Addenda Incomplete.Request Denied
ML20213F184
Person / Time
Site: Columbia Energy Northwest icon.png
Issue date: 11/06/1986
From:
Office of Nuclear Reactor Regulation
To:
Shared Package
ML17278B072 List:
References
TAC-59295, NUDOCS 8611140066
Download: ML20213F184 (2)


Text

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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATING TO LATEST CODE REQUIREMENT APPLICATION WASHINGTON PUBLIC POWER SUPPLY SYSTEM NUCLEAR PLANT NO. 2 DOCKET NO. 50-397

1.0 INTRODUCTION

In a letter dated June 14, 1985, the Washington Public Power Supply System requested NRC approval to use the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel (B&PV) Code Section XI, 1983 Edition, Winter 1984 Addenda, Section IWA 2213.

Evaluation of this request is discussed below.

2.0 EVALUATION The Winter 1984 Addenda of the ASME B&PV Code Section XI, 1983 Edition has revised visual examination VT-3 requirements delineated in IWA-2213. The revision coincided with the deletion of visual examination VT-4 requirements delineated in IWA-2213.

Adopting the new IWF-2213 requirements would auto-matically permit the licensee to terminate its previous VT-4 visual examination commitments.

Regulations and Technical Specifications require that inservice surveillance be performed according to the ASME B&PV Code Section XI requirements.

However, these requirements are modified and revised from time to time to reflect the latest surveillance philosophy and technical developments.

The results are published at three year intervals as revised editions of the Code, supplemented by quarterly interim addenda.

The NRC approves the use of these editions and addenda at regular intervals af ter evaluations reveal that they do not conflict with present NRC positions.

Currently, the ASME B&PV Code Section XI has been approved to the 1983 Edition, Summer 83 Addenda. Approval of further addenda and editions will be granted on an orderly basis.

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3.0 CONCLUSION

Since the NRC has not completed its evaluation of the Winter 1984 Addendum, there is no basis for the approval of its use. Therefore, the request is premature and cannot be granted.

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