ML17179A747

From kanterella
Jump to navigation Jump to search
Notice of Violation from Insp on 921215-930204.Violation Noted:Lack of Heater Operation Placed SGTS Outside Its Design Basis Requirement
ML17179A747
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 02/24/1993
From: Beverly Clayton
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
To:
Shared Package
ML17179A746 List:
References
50-237-92-36, 50-249-92-36, NUDOCS 9303030067
Download: ML17179A747 (1)


Text

NOTICE OF VIOLATION Commonwealth Edison Company Dresden Station, Units 2 and 3 Docket Nos.

50-237; 50-249 License Nos. bPR-19; DPR-25 During an NRC inspectipn conducted on December 15, 1992, through February 4, 1993, a violation* of NRC requirements was identified.

In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"

10 CFR Part 2~ Appendix C, the violation is listed below:

  • 10 CFR Part 50, Appendix 8, Cr~terion Iii, states, in part, that measures shall be established to assure that applicable r,egulatory requirements and the design basis, ~s d~fined in paragraph 50.2 and as specified in the license application, for those ~tructures, system~ and tomponents to whi~h this appendii applies are correctly tr~nslated_into specifications, drawings~

procedures~ andinstructions.

Secti~rr 5.3.i~5 of the final safety analysis report describes the major*

components of the standby gas treatment system (SGTS), including the demister.

and heater, which are required to reduce the relative air humidity passing through the train to les~ than 70 percent~

Contrary to the above, Dresden Operating Procedure 7500-1, "Standby Gas Treatment System Operation," allowed placement of the control switches to the SGTS in a configuration that would allow both trains to operate during an automatic initiation signal. *Simultaneous operation of_ both SGTS trains would split air flow between both of the trains, and would cause each train's res~ective. air heater to de-energize under low system air fl~w conditions.

  • Lack of heater operation places the SGTS outside iti design basis r~quirement.

This is a Severity Level IV ~iolation. (Supplement I).

The inspection showed that steps had been taken to ~orrect the identified violation and to prevent recurrence. Consequently, no reply to the violation

. ;*s required and we have no forthe~ questions regarding this matter.

this ;µ{-.day of February, 1993

  • 9303030067 930224 PDR ADOC11.--osooo237 0

PDR 1