ML20082M927

From kanterella
Jump to navigation Jump to search
Responds to NRC Re Violations Noted in IE Insp Repts 50-440/83-30 & 50-441/83-29.Corrective Actions: Nonconformance Rept OQC-0343 Closed & Two Identified Single Element Fuses Replaced W/Dual Element Time Delay Fuses
ML20082M927
Person / Time
Site: Perry  FirstEnergy icon.png
Issue date: 11/23/1983
From: Edelman M
CLEVELAND ELECTRIC ILLUMINATING CO.
To: Little W
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML20082M914 List:
References
NUDOCS 8312060331
Download: ML20082M927 (2)


Text

_ _ _ - - _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ ______

i

~

t P O BOX $000 - CLEVELAND, oHlo 44101 - TELEPHONE (216) 622-9800 - fl LUMINATING BLDG - 55 PUBLIC SOUARE Servin] The Best location in the Nation MURRAY R. EDELMAN VICE PRE 51 DENT NUCLE AR Mr. W. S. Little, Chief Engineering Branch 2 Division of Engineering U.S. Nuclear Regulatory Commission, Region III 799 Konsevelt Road Glen Ellyn, Illinois 60137 F.E : Perry Nuclear Power Plant Docket Nos. 50-440; 50-441

Dear Mr. Little:

This letter is to acknowledge receipt of Inspection Report Number 50-440/

83-30; 50-441/83-29 attached to your letter dated October 28, 1983. This report identifies areas examined by Mr. N. Merriweather during his inspection conducted October 11-14, 1983, at the Perry Nuclear Power Plant.

Attached to this letter is our response to the Deviation described in the Notice of Deviation dated October 28, 1983. This response describes the corrective action taken and the date of completion as requested in your letter.

Our response has been submitted to you within thirty days of the date of the Notice of Deviation as you required. If there are additional questions, please do not hesitate to cal!,

Very truly yours, 8312060331 831130 O DR ADOCK 05000440 M. R. Edelman PDR Vice President Nuclear Group MRE:pab Attachment cc: Mr. M. L. Cildner USNRC Site Mr. R. C. Knop, Chief Projects Branch 1 Division of Project and Resident Pragrams U.S. Nuclear Regulatory Commission, Pegion III 799 Roosevelt Road Glen Ellyn, Illinois 60137 U.S. Nuclear Regulatory Commission c/o Document Management Branch Washington, D.C. 20555 UW 2 51983

4 Below is our response to Appendix A, Notice of Deviation, of United States Nuclear Regulatory Commission I.E. Report 50-440/83-30; 50-441/83-29.

II. Deviation 440/83-30-01 A. Deviation CEI Ictter to NRC (letter from Daiwyn R. Davidson, Vice President -

Engineering to Dr. Walter R. Butler, Chief, Lig'n t Water Reactors Branch, Division of Reactor Licensing, NRR) dated August 18, 1975, states in part that "the design for electrical protection of class 1E motors for motor operated valves (MOV) utilizes a fusible disconnect switch in the power circuit to achieve both branch-circuit and running overcurrent protection..., the fuses will be dual element time delay type fuses and will be size coordinated to provide both branch-circuit and overload protection..."

Contrary to the above, two single element type power fuses (Buss Type Nos. 10) were installed in Compartment HH of Motor Control Center 1R24S026 (which supplies power to MOV-1E12F105).

B. Response

1. Corrective Action Taken Nonconformance Report OQC 0343, isssued during this inspection, has been closed. The two identified single element fuses have been replaced with dual element time delay type fuses.

Additionally, all Class 1E Motor Control Centers (MCCs) previously tested by the Nuclear Test Section (NTS) were verified as having dual element fuses installed.

NTS has revised generic test procedures CEN-E-002, "480 VAC and 125 VDC MCCs" and GEN-E-003, " Motor Operated Valves" to require that each compartment of Class 1E MCCs be checked during Initial Checkout and Run-In (IC&R) testing to verify that the appropriate size and type fuses are installed. The fuse size and type will be documented on test data sheets.

As a result of a Nuclear Construction Engineering Section and Gilbert Associates, Inc. (GAI) Engineering review, it has been detenmined that NTS will use existing site controlled manuf acturers' drawings which specify fuse type and size in conjunction with the approved GAI 208 series Construction Drawings during verification of proper fuse installation.

2. Date When Full Compliance Will Be Achieved Proper fuse size and type will be verified during scheduled IC&R testing for all remaining Class 1E MCCs.

. _ _ _ _ _ - _ - - _ _ _ _ _ _ _ _ _ _