ML20083H961

Forwards Details of NUREG-0612,Section 5.1.1 Guideline & Compliance Methodology Review & Response to Technical Evaluation Rept C5257-61/62/63 Re Special Lifting Device Review,Per 830526 Ltr Concerning Control of Heavy Loads

ML20083H961
Person / Time
Site:	Browns Ferry
Issue date:	01/06/1984
From:	Mills L TENNESSEE VALLEY AUTHORITY
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 NUDOCS 8401160077
Download: ML20083H961 (19)

Text

, 7 TENNESSEE VALLEY AUTHORITY CH ATTANOOGA, TENNESSEE 374ot 400 Chestnut Street Tower II January 6, 1984 Director of Licensing Attention: Mr. Domenic B. Vassallo, Chief Operating Reactors Branch No. 2 U.S. Nuclear Regulatory Commission Washington, D.C. 20555

Dear Mr. Vassallo:

In the Matter of the ) Docket Nos. 50-259 Tennessee Valley Authority ) 50-260 50-296 Py your letter to H. G. Parris dated May 26, 1983 subject, " Control of Heavy Loads," TVA was requested to provide the final results of our analysis for compliance with section 2.1 of NUREG-0612. Enclosure 1 details our review of each guideline of section 5.1.1 of NUREG-0612 and our compliance methodology. Enclosure 2 details our review of special lifting devices. This submittal should complete the requirements of section 2.1 of NUREG-0612. If you have any questions, please call Jim Domer at FTS 858-2725.

Very truly yours, TENNESSEE VALLEY AUTHORITY CAh.

L. M. Mills, .anager Nuclear Licensing Swornpo d subscr bed before me this1 0 day of 1984.

[

N6tary Public g "'

My Commission Expires /-

Enclosures cc (Enclosures):

U.S. Nuclear Regulatory Commission Region II Attn: Mr. James P. O'Reilly, Regional Administrator 101 Marietta Street, IN, Suite 2900 Atlanta, Georgia 30303 O

Mr. R. J. Clark, Project Manager Browns Ferry Nuclear Plant J U.S. Nuclear Regulatory Commission 1 7920 Norfolk Avenue Bethesda. Maryland 20814 84011o0077 840106 PDR ADOCK 05000259 P PDR An Equal Opportunity Employer

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ENCLOSUfE 1 TVA

'NRC GUIDELINE COMPLIANCE METHODOLOGY

1. Guideline 1, Section 5.1.1(1) MMI-119 has been revised and implemented to meet Guideline 1 requirements

=2. Guideline 2, Section 5.1.1(2) Administrative controls have been Laplemented for the truck crane and 4 ton manual chain hoist 3 Guideline 3, Section 5.1.1(3) Compliance complete

4. Guideline 4, Section 5.1.1.(4) Results of review are in enclosue 2

5. - Guideline 5, Section 5.1.1(5) The 125-ton reactor building crane (i.e., main and auxiliary hoist) is used in conjunction with the slings in question. The maximum dynamic load of the main and auxiliary hoist is 2-1/2 percent and 10 percent of the static load, respectively. This is based on section 3.3 of Industrial Standard CMAA-70. The latest response to the NRC TER C5506-337/338/339 states that a dynamic load range of 5-15 percent need not be considered in the process of sling selection. These slings meet this criteria and fully comply with guideline 5 of TER C5257-61-62/63

6. Guideline 6, Section 5.1.1(6) TVA complies with ANSI B30.2, B30.5, B30.16 7 Guideline 7,' Section 5.1.1(7) Compliance complete 4

ENCLOSURE 2 Response to Question 4a TER.C5257-61/62/63 Spent Fuel Cask Rotator - Compliance with ANSI N14.6-1978 Discussion The cask rotator with lift eye and lock nut was procured under a nonquality assurance contract (71C33-74803-1), but because of interface problems with the cask yoke supplied by General Electric, modifications to the lifting eye ami lock nut were required. . These were identified by ECN L1385.

During the course of resolving ECN L1385, a preliminary Regulatory Guide 1.104 was released by NRC which required redundancy in the block and hook.

The change to the block for redundancy and the changes required by the ECN were incorporated into a QA contract (76K64-87276). The following table will use specifications from both the above citei conersets to establish compliance with ANSI N14.6-1978.

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i a Response to Question 4a of TER C5257-61/62/63 'NA'- Not Applicabid LEN DES-Designed Spent. Fuel Cask Rotator ' E - Equivalency :

- C - Compliance ANSI N14.6

- 1978 -

Specific TVA's Section Position Corrective Action or Equivalency 3.1.1 E a)'No design specificatien was written; however, procurement specifications 1241 and 2628 satisfy the requirements of a design specification.

b) No limitations on the use of the rotati.r with respect to temperature, corrosive environ-ment, etc., exist in the RB for the cask rotator's intended use.

3.1.2 E The critical items list is as follows: 1) main pin, 2) housing, 3) lif ting eye, 4) lock nut,

5) bearings. Procurement epecification 1241 and 2628 satisfy the remaining requirements of this section for these items.

3.1.3 C Verification of stress analysis (BWP 830329.102) is available.

3.1.4 E A criteria for acceptable repair and testing procedures will be written.

3.2.1 C 3.2.4 C 3.2.5 NA No wire rope is used in the cask rotator assembly.

3.2.6 E This inaterial .cannot be exempted by the methods mentioned in this eection. A cold proof test will be performed for compliance prior to initial use in " heavy Ibad" i

applications.

3.3.1 C l 3.3.4 NA There is'but a single load bearing assembly for the cask rotator assembly.

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Response to Question 4a of TER C5257-61/62/63 NA_- Not-Applicable EN DES-Designed Spent Fuel Cask Rotator E - Equivalency.

C - Campliance ANSI N14.6

- 1978 -

Specific TVA'a Section Position Corrective Action or Equivalency 3.3.6 NA No actuating mechanism is used in the cask rotator assembly.

4.1.3 C f'

4.1.4 C 4

4.1.5 C 4.1.6 E A QA program had not been implemented when this assembly was procured. Ilowever, the procurement specifications do control the majority of the requirements in this section.

4.1.7 E As indicated in the discussion on page 1 of this report, the purchase contract for this rotator was non-QA, therefore, material certifications are not available for this device.

l However, the modifications identified were performed under a .QA contract and ' material certifications are available for the new component;. Performance of the recommended proof tee ,

should establish compliance with the intent of this section.

4.1.9 C 4

5.2.1 C 5.2.2 E Processing a replacement part from the same lot of material as the original component cannot be guaranteed. However, any replacement' parts would be subject to design, material, heat treatment, fabrication, inspection testing, and quality control requirements equivalent to, or more severe r than the original specification.

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Response to Question 4a of TER C5257-61/62/63 NA - Not Applicable' EN DES-Designed Spent Fuel Cask Redundant Link Assembly E - Equivalency C - Compliance ANSI N14.6

- 1978 -

Specific TVA's Section Position Corrective Action or Equivalency 3.1.1 E a) No design specification was written, however, procurement specification 2628 satisfies-the requirements of this section.

b) No limitations on the use of the link with respect to temperature, corrosive environ-ment, etc., exist in the R3 for the redundant link intended use.

3.1.2 E No critical items list was written. However, all items of the redundant. link assembly are considered critical and each requirement in this section is satisfied.

3.1.3 C Verification of stress analysis (MEB R30809 951) is available.

i 3.1.4 E A criteria for acceptable repair and testing procedures will be written.

I 3.2.1 C i 3.2.4 C 3.2.5 C 3.2.6 E This material cannot be exempted by the methods mentioned in this section. A cold i Proof test will be performed for compliance prior to initial use in " heavy load" applications 3.3.4 C

, 3.3.5 C i

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Response to Question 4a of TER C5257-61/62/63 NA - Not Applicable-EN DES-Designed Spent Puel Cask Redundant Link Assembly E - Equivalency C - Compliance ANSI N14.6

- 1978 - -

Specific TVA's Section Position Corrective Action or Equivalency 3.3.6 NA No actuating mechanism is used in the redundant link assembly.

4.1.3 C 4.1.4 C

, 4.1.5 NA No welding exists in this assembly.

4.1.6 C I

4.1.7 C 4.1.9 C 5.2.1 E The assembly will be proof tested to 150%.of rated-load by a nondestructive test i

1 performed in accordance with section 5.5 of ANSI N14.6-1978.

5.2.2 E Processing a replacement part from the same lot of material as the original component cannot be guaranteed. However, any replacement parts would be subject to design, naterial, heat treatment, fabrication, inspection, testing and quality control requirements equivalent to, or more severe, than the original specification.

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P-Res'ponse to Question 4a of TER C5257-61/62/63 -NA - Not Applicable- 1 Generel Elsetric-Designed RPV. Head Strongback E - Equivalency C - Compliance ANSI N14.6

- 1978 -

Specific TVA's Section Position Corrective Action or Equivalency 3.1.3 E A stress analysis report was not provided at-the time of the RPV head strongback' delivery, however, the intent of this requirement was met as follows:

1. At the time of the design of the RPV head strongback, stress analyses were done for all load bearing components of the strongback when subjected to its

. maximum design load. These stress analyses are maintained in GE' design record-

' files and are subject to customer (TVA) audit. These. analyses demonstrate the minimum design safety factors for these components.

2. A discussion of these stress analyses and a summary of the minimum stress design factors for each load bearing component of the RPV head strongback was provided to TVA in Appendix B of GE's report (NEB 830623 615).

3.1.4 E No indication of permissible repair procedures was provided, other than during the fabrication process. Repairs should be done in accordance with the origir.a1 fabrication requirements.

For the RPV head ,strongback it has been recommended by the vendor, General Electric i Company that permissible repair procedures be based on the requirements of ANSI N14.6-1978 section 5.4. Specifically repairs or modifications to designed i components of the lifting devices shall be governed by the same requirements applied during the initial fabricatioa of the devices, and nondesigned components (i.e., turnbuckles, anchor shackles, slings, etc.) and load bearing pins shall be replaced rather than ' repaired. In order for TVA to be in compliance on this item, TVA will imple' ment repair and testing procedures consistent with sections 5.4 and 5.5 of ANSI 14.6-1978 by-completion of unit 1, cycle 6 refueling outage.

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Response to Question 4a of TER C5257-61/62/63 NA - Not Applicable

• General Electric-Designed 'ITV Head 'Strongback <

E - Equivalency C - Compliance

- ANSI N14.6

- 1918 -

Specific TVA's Section Position Corrective Action or Equivalency 3.2.1 E Designed components of the RPV head strongback were designed to provide a sanimum safety factor of 4.0 with respect to material of construction minimum yield stress. : Nondesigned components (i.e., turnbuckles and anchor shackles) were 4

selecte'd to maintain the overall safety factor of 4.0 based on their load carrying capebility. The stress analysis presented to TVA by CE illustrates that i

all load bearing components of the RPV head strongback comply with the stress design

' criteria of this section with one exception. ' The cruciform structure of the RPV head strongback provides a minimum stress design factor relative to ultimate strength of 4.8 not 5.0 as required. As this. structures does provide a minimum stress design factor relative to yield strength of 3.0 as required, it is felt that .

the intent of the ANSI N14.6-1978 design stress criteria are adequately met.

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Response _to' Question 4a of TER'C5257-61/62/63

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NA - Not'Applicablo Ceneral Electric-Designed RPV Head Strongback E - Equivalency.

C - Compliance ANSI N14.6

- 1978 -

Specific TVA's Section Position Corrective Action or Equivalency 3.3.5 C

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Response to Question 4a of TER C5257-61/62/63 NA - Not Applicable General Electric-Designed RPV Head Strongback .E - Equivalency-C - Compliance-ANSI N14.6

- 1978 -

Specific TVA's Section Position Corrective Action or Equivalency 5.2.1 E A proof load test of the RPV head stongbsck was required and performed. The specified load for this test was 125 tons or 130 percent of the maxirim load to which it is to be subjected. Following the test, all load bearing welds were ungnetic particle inspected per GE specificction and the entire structure was examined for dimensional deformation. It is not considered necessary to repeat this test at 150 percent rather than 130 percent of maximum loa'. Considering de infrequent usage of this device and that it will be used only for the lifts i

for which it was designed, it is concluded that the '130 percent load test is adequa te.

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Response to Question 4a of TER C5257-61/6?/63 -)UL - Not Applicable General Electric-Designed Steam Dryer /Moiscure Separator Sling E - Equivalency-C - Compliance

, ANSI N14.6

- 1978 -

Specific TVA's Section Position Corrective Action or Equivalency 3.1.1' E No design specification was prepared for the steam dryer / moisture separator sling, however, the intent of this requirement was met as follows:-

1. CE Puschased Part D,rawings provides (1) material specifications, proof load and magnetic particle testing requirements, heat treatment requirements (where necessary), welder and welding procedures qualification requirements, and fabrication procedures for all designed components of the dryer / separator sling assembly; (2) purchasing information including dimensions, approved vendors and vendor catalog numbers for nondesigned components fi.e., wire rope, sleeves, thimbles, turnbuckles; etc.); and (3) nameplate information and mounting instructions.

2. The GE Quality Control Program as in7oked by the purchase order, provides requirements for fabrication processes, welding qualification, in process inspection, ultrasonic, magnetic particle and proof load testing, material certification, drawings and record retention.

3. The equipment purchase order invokes the design requirements of the Purchased -

Part Drawings and the GE Quality Control Program and identifies any additional fabrication, inspection, testing or quality contro'1 requirements.

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Response ' to Question 4a of TER C5257-61/62/63 NA 'Not' Applicable General Electric-Designed Steam Dryer / Moisture Separator Sling E - Equivalency C - Compliance ANSI N14.6

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Minimust Present Comments and j Slina Safety Factor Proof Test (%) Recommendations "1

44N334-1 8.5 231 Use as furnished k 44N334-2 8.9 240 Use as furnished l

l 44N334'-3 10.9 275 Use as furnished 3

[ 44N334-4 6.4 155 Proof test to 4000f 5' 44N334-11 4.4 112 Redesign, procure, and proof test replacement wire rope and fittings

, 44N334-13 4.5 124 Redesign, procure, and proof test replacement wire rope and fittings 44N334-13-1 3.24 184 Replace hooks on sling and reproof ' 7 test legs to 74,100f and links to 100,000f 44N334-14 5.7 152 Reproof test sling legs to 5600f

• 44N334-16 5.7 143 Reproof test legs to 7800f .

44N246 6.42 170 Reproof test legs to 16,500f,*

links to 33,000f 44N232-1 6.4 185 Reproof test legs to 8200f, links

• to 11,600f Minimum factor of safety (5.0 to 1.0) and minimum proof test load (200%) are directly from ANSI B30.9.

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