ML20234D877

Forwards Util Transmitting Amend 5 to Application of License.Excerpts of 157th ACRS Meeting on 730519 Re Vibration & Noise at Unit 1 Encl.W/O Ltr

ML20234D877
Person / Time
Site:	05000000, Quad Cities
Issue date:	11/16/1967
From:	Morris P US ATOMIC ENERGY COMMISSION (AEC)
To:	Palladino N Advisory Committee on Reactor Safeguards
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References
FOIA-87-40 NUDOCS 8707070370
Download: ML20234D877 (2)

Text

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• s UNITED STATES D. <-

ATOMIC ENERGY COMMISSION i

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W ASHINGTON, D.C. 20545 1

i November 16, 1967 Docket Nos. 50-254 and 50-265 l

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Mr. Nunzio Palladino Chairman, Advisory Committee on Reactor Safeguards U. S. Atomic Energy Commission Washington, D. C.

Dear Mr. Palladino:

Transmitted for the information of the Committee are i

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COMMONWEALTH EDISON COMPANY (Quad-Cities Station, Units 1 and 2)

Commonwealth Edison Company letter dated November 10, 1967, transmitting Amendment No. 5 to Application for Licenses for its proposed Quad-Ciries Station Units 1 and 2.

i Sincerely yours,

~l d4 Peter A. Morris, Director Division of Reactor Licensing

Enclosures:

As stated above

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157th ACRS Meeting May 10 - 11, 1973

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Meeting with Regulatory Staff (Executive Session) i A.

Evaluation of Category B Reports 1.' 'gund Cities l' Vibration and Noise J. B. Henderson, Regulatory Operations, stated that at 95% full

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power, noise was heard in the torus room, vibration was observed in the low pressure coolant injection line, noise was heard from

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the drywell in that area, and the recirculation loop discharge i

line was vibrating.

When reactor power was reduced, the noise and vibrations stopped.

The next day, again at 95% power, the noise and vibrations recurred.

The reactor was shut down, and a vibrometer was installed, but the phenomenon did not repeat.

It has been decided to leave the vibrometer on and continue operating with vibration monitoring.

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