ML20077F412

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Forwards Addl Info Re NUREG-0612, Control of Heavy Loads at Nuclear Power Plants, Phase 1 Issues,In Response to 830526 Request.Signalman Will Direct Crane Operator Along Load Paths on Refueling Floor
ML20077F412
Person / Time
Site: Cooper Entergy icon.png
Issue date: 07/25/1983
From: Kuncl L
NEBRASKA PUBLIC POWER DISTRICT
To: Vassallo D
Office of Nuclear Reactor Regulation
References
REF-GTECI-A-36, REF-GTECI-SF, RTR-NUREG-0612, RTR-NUREG-612, TASK-A-36, TASK-OR LQA8300177, TAC-07982, TAC-7982, NUDOCS 8308010372
Download: ML20077F412 (2)


Text

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GENERAL OFFICE Nebraska Public Power District * ""EEMo"ne"Sio ne"^8s"** *"

2 LQA8300177 July 25, 1983 Office of Nuclear Reactor Regulation Operating Reactors Branch No. 2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, DC 20555 Attenticn: Mr. "emenic J B. Vassallo, Chief

Dear Mr. Vassallo:

S% ject: Control of Heavy Loads - Phase 1 Cooper Nuclear Station NRC Docket No. 50-298, DPR-46

Reference:

(1) Letter fron D. B. Vassallo to J. M. Pilant, dated May 26, 1983, " Control of Heavy Loads -

Phase 1" Reference (1) requested additional information regarding the District's response to NUREG-0612, " Control of Heavy Loads at Naclear Power Plants" Phase 1 issues.

Attachment 1 is submitted pursuant to the above mentioned request. The attached responses are keyed to the recommendation /open it. ems of Enclosure 3 to reference (1).

Should you have any questions regarding this response or require additional information, please contact my office.

Sincerely, M

L. G. Kuncl Assistant General Manager-Nuclear GAT:cmk Attachment 8300010372 830725 PDR ADOCK 05000298 P PDR s m

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  • Attachment 1 Control of Heavy Loads - Phase 1 CNS Open Items 1.a To ensure safe movement of loads at Cooper Station, Nebraska Public Power District (NPPD) should ensure that suitable visual aids are available to assist crane operators when conducting heavy loads movements.

Response

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A crane signalman will direct the crane operator along the designated

. load paths on the refueling floor. Revised procedures with responsibilities I

. delineated to the crane signalman for this function will be issued by November 1983.

2.a. NPPD should confirm that special lifting devices are designated to standaras compatable to the criterie of ANSI N14.6-1978, Section 3.2. In addition, docenerstation should also be prosi6ed to demon- ,

strate that dynamic loads have been considered for both special and non-special lifting devices.

Response

The conformance analysis for the designated special lif ting devices was perfcrmed and the results were sulaitted in a letter from J. M. P11 ant i to D. G. Eisenhut dated Dec.mber 3,1982. The niing and strap selection, storage, and inrpection procedure was reviseo to include n T~ctor of 1.5

< times the dead weight of the load to cover dynanic loading conditions.

3.a. NPPD should develop and implement a ' program for acceptance testing and continuing compliance for"apecial lif ting devices that conforms to the criteria contained in ANSI N14.6-1978, Section 5.

Response

A program.to NDE the load bearing welds of the designated special lifting devices on the refueling floor to be conducted at 5 year. intervals will be developed by November 1983. The inspections will be performed utilizing

- either liquid penetrant or magnetic particle examinations as allowed by ANSI N14.6, Section 5.5, with procedures and personnel qualified to the applicable subsections in the current ' addition of ASME Boiler and Pressure Vessel Code, Section v.

-4.a. NPPD should perform a visual inspection of all load-bearing

- components of special lifting devices used to handle heavy loads over the core.

Response

- Procedures for the designated special'11fting devices on the refueling floor currently require visual inspection of the devices prior to handling heavy loads over the core.