ML17354A242

Forwards Addl Info on Guideline 4, Special Lifting Devices & Guideline 7, Crane Design, Per Draft Technical Evaluation Rept on Control of Heavy Loads at Facilities

ML17354A242
Person / Time
Site:	Turkey Point
Issue date:	02/11/1983
From:	Robert E. Uhrig FLORIDA POWER & LIGHT CO.
To:	Varga S Office of Nuclear Reactor Regulation
References
REF-GTECI-A-36, REF-GTECI-SF, RTR-NUREG-0612, RTR-NUREG-612, TASK-A-36, TASK-OR L-83-71, NUDOCS 8302180483
Download: ML17354A242 (5)

Text

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AOCBSSXeN NBR:83021804S3 DOC.DATE> 83/02/11 NOTARIZED> NO DOCKET ¹

.FAGIL 50 250 <<Tur key Point <<Planti 'Unit 3i Florida lpower -and Light C 05000250

.",50 251 "Tur key Point ~Pl anti ,'Unit 4i Flor ida lPower and Light C 05000251

'AUTH'AME I AUTHOR Al'- F IL ATION

'UHRIGiR ~ Ee Flor,ida Power 8 'Light Co,

<<REC IP ~ NAME REC IP IENT AFF IL'IATION VARGApS ~ AD Operating Reactors Branch 1 SUBJEOTs .Forwards addi info on Guideline 4i,"Special Lifting Devices."

Guide)ine 7g,"Crane Designi." per;draft Itechnical evaluation rept" on control of heavy loads at facili.tiese

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.TITLE: OR Submittalj USI A 36,Control of,Heavy:Load Near Spent NOTES; Fuel'ECIPIENT

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Dear Mr. Varga:

Re: Turkey Point Units 3 8 4 Docket Nos. 50-250 & 50-251 Draft Technical Evaluation Re ort In our letter (L-82-346) dated August 10, 1982, we provided additional information on the items in the Draft Technical. Evaluation Report on Control of Heavy Loads at Turkey Point Units 3 8 4.

The purpose of this letter is to provide additional information on Guideline 4 (Special Lifting Devices) and Guideline 7 (Crane Design).

Our evaluation of FPL designed lifting devices is attached. The Westinghouse designed lifting devices have been evaluated by Westinghouse and we have received a preliminary copy of their report. We are still in the process of reviewing the detailed recommendations contained in the report. We expect to ccmplete our review and provide the evaluations by March 15, 1983.

For Guideline 7 we have received schedules from the crane manufacturers for evaluations of the crane designs. We expect to be able to submit these evaluations by August 15, 1983.

Should you or your staff have any questions on this information, please contact us; Rober E. Uhrig Vice President Advanced Systems 8 Technology REU/PKG/js 8302i80483 8302ii Attachment PDR ADOCK 05000250 P PDR cc: J. P. O'Reil ly, Regi on I I Harold F. Reis, Esquire

.PNS-'LI-83-099-1 PEOPLE... SERVING PEOPLE l'

TURKEY POINT UNITS 3 Kc 4 REACT(K ELD SLINGS EVALU INES A special lifting -rig consisting of six (6) wire rope slings is used at Turkey Points 3 and 4 for handling of the reactor and pressurizer missile shields and the reactor coolant pump hatch covers i.n the con~

tainment. The lifting rig consists of two parts, each composed of three (3) slings and a 2 1/8" diameter choker. Although these slings are dedicated to handling these loads, the slings are standard "off-.

the-.shelf" i.tems with no special design. Therefore NUREG 0612 General Guideline (5) "Lifting Devices that are not Specially Designed" is considered the applicable evaluation criteria.

The following is a summary of pertinent sling, load and crane proper~

ties:

CONSTRUCTION 1 I/4" DIAMETER 6 X 36 IWRC WIRE ROPE I sume er ULTIMATE STRENGTH (MIN) 120',000// Table 3 Per Sling REACTOR MISSILE SHIELD WT 97,'000//

PRESSURIZER MISSILE SHIELD WT 51,300//

CRANE MAIN HOOK (MIN SPEED AT RATED LOAD) 5 fpm In order to account for the NUREG 0612 Section 5.1.1(5) dynamic load factor, it will be conservati.vely assumed that the maximum lifting speed during missile shield handling is 20 fpm. Using the factors in CMAA //70 for dynamic contribution, this constitutes a 10/ increase in load (i.e., 1/2 X per 1 fpm. Thus, the following safety factors are calculated:

F.S. (Reactor Mi.ssile Shield) = 5.2 (40'ngle from vertical, 6 sli.'ngs)

F.S. (Pressuri.zer. Missile Shield = 7.7 (25 Angle from vertical, 4 slings)

Note that NUREG 0612 Guideline 5 requires a minimum factor of safety of 5.0.

The above factors of safety are calculated by dividing the sling ulti~

mate strength by the adjusted actual load weight. The load i.s adjus>

ted to account for the sling angle from the verti.cal and the prevt.ous-ly mentioned dynamic contribution.

The slings are assumed to be constructed of Improved Plow Steel and the working load values are obtained from ANSI B30.9. There is, how>

ever, no documentation available to verify what the actual sling mate>

ri.al is or that it conforms to this ANSI standard.

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