ML19341A881

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Responds to IE Bulletin 80-16 Re Potential Misapplication of Rosemount,Inc Pressure Transmitters.Rosemount Model 1152 Transmitters Used Could Not Be Exposed to Input Pressures Resulting in Anomalous Output Signals
ML19341A881
Person / Time
Site: Byron, Braidwood  Constellation icon.png
Issue date: 01/08/1981
From: Rausch T
COMMONWEALTH EDISON CO.
To: James Keppler
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
IEB-80-16, NUDOCS 8101280613
Download: ML19341A881 (2)


Text

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January 8, 1981  !<- 'a E-

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zw Mr. James G. Keppler, Dire ctor '

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Enforcement - Region III s U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 Subje ct : Byron Station Units 1 and 2 Braidwood Station Units 1 and 2 Supplemental Response to IE Bulletin 60-16 con cerning Potential Misapplication of Rosemont Inc. Pressure Transmitters NRC Do cket Nos. 50-454/455, 50-456/457 Reference (a): J G.

Keppler letter to C. Reed dated June 27, (b): 1. J. Raus ch letter to J. G. Keppler dated August 29, 1980

Dear Mr. Keppler:

Reference (b) provided the Commonwealth Edison Company response to the subject bulletin for our units under construction.

For the case of Byron and Braidwood stations, reference (b) stated that in use nosafety-related transmitters of the type described in Bulletin 80-16 are in applications. Subsequent to this response, Rockwell International informed us via our balance of plant architect engineer that Rosemount Model 1152 (output Code A)

PIessure transmitters have been supplied to Byron and Braidwood Stations on the thermal hydrogen recombiners. An engineering review revealed that no problem exists because the af fected transmitters could not be exposed to input pressures that would result in anomalous output signals.

To ensure that all such transmitters have been identified, our architect engineer is re-reviewing the balance of plant use of the subject components at Byron and Braidwood Stations. The NRC will be notified if any further application of the af fected units is dis cove red .

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t Mr. James G. Keppler, Dire ctor January 8, 1981 Page 2 Please address any questions you may have in this regard to this of fi ce.

Very truly jours,

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Thomas J. lRaus ch}( nas./_

Nuclear Licensing Administrator Spe cial Proje cts cc: U.S. Nuclear Regulatory Commission Of fice of Inspection and Enforcement Division of Reactor Construction Inspection 9501A 1

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