RBG-46426, Supplement to License Amendment Request (LAR) 2004-26, Use of the Fuel Building Cask Handling Crane for Dry Spent Fuel Cask Loading Operations.
ML051120198 | |
Person / Time | |
---|---|
Site: | River Bend |
Issue date: | 04/19/2005 |
From: | King R Entergy Operations |
To: | Document Control Desk, Office of Nuclear Reactor Regulation |
References | |
+kBR1SISP20060503, LAR 04-26, NUREG-0554, NUREG-0612, RBG-46426 | |
Download: ML051120198 (47) | |
Text
Entergy Operations, Inc.
River Bend Station
--En tergy 5485 U. S. Highway 61 N St. Francisville, LA 70775 Fax 225 635 5068 RBG-46426 April 19, 2005 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555
Subject:
River Bend Station Docket Nos. 50-458 and 72-49 License No. NPF-47 Supplement to License Amendment Request (LAR) 2004-26, "Use of the Fuel Building Cask Handling Crane for Dry Spent Fuel Cask Loading Operations"
Reference:
License Amendment Request (LAR) 2004-26, "Use of the Fuel Building Cask Handling Crane for Dry Spent Fuel Cask Loading Operations" dated March 8, 2005
Dear Sir or Madam:
By letter dated March 8, 2005, Entergy submitted a License Amendment Request to use the Fuel Building Cask Handling Crane (FBCHC) for dry spent fuel cask loading operations. The attachment to this letter supplies a matrix comparing the FBCHC to NUREG-0554 and NUREG-0612. This is provided as information to assist in your review. In the original letter, Entergy committed to upgrade the FBCHC quality classification to 'Quality Assurance Program Applicable" by March 31, 2005. Entergy now plans to complete this action prior to the first cask loading campaign, currently scheduled during the third quarter, 2005. This change in the commitment date was discussed with Mike Webb on April 18, 2005.
If you have any questions or require additional information, please contact Mr. Bill Brice at 601-368-5076.
Rick J. King Director, Nuclear Safety Assurance RJK/WBB
Attachment:
- 1. NUREG-0612 AND NUREG-0554 Comparison Matrix for the RBS Fuel Building Cask Handling Crane 10
RBG-46426 Page 2 of 2 cc: Dr. Bruce S. Mallett U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011 NRC Senior Resident Inspector P. 0. Box 1050 St. Francisville, LA 70775 U.S. Nuclear Regulatory Commission Attn: Mr. Michael K. Webb MS 0-7D1I Washington, DC 20555-0001 Louisiana Department of Environmental Quality Office of Environmental Compliance Attn: Mr. Ronnie Wascom Surveillance Division P.O. Box 4312 Baton Rouge, LA 70821-4312
Attachment to RBG-46426 NUREG-0612 AND NUREG-0554 Comparison Matrix for the RBS Fuel Building Cask Handling Crane
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 1 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section Safe load paths for heavy load movements have been defined at RBS. The FBCHC is prevented, The consequences of a postulated Safe load paths should be defined for by design, from traveling over the drop of the MPC lid into the loaded the movement of heavy loads to reactor vessel and the spent fuel MPC have been evaluated and found NUREG-0612 minimize the potential for heavy loads, pool. Loaded spent fuel casks are to not result in an unacceptable fuel Section if dropped, to impact irradiated fuel in not handled over irradiated fuel. configuration and the radiological 5.1.1(1) the reactor vessel and in the spent fuel The MPC lid is the sole heavy consequences are bounded by the pool, or to impact safe shutdown load handled by the FBCHC that previously evaluated fuel handling equipment. must be suspended over exposed accident described in RBS USAR spent fuel in the loaded canister Section 15.7.4.
to properly conduct spent fuel cask loading operations.
Procedures should be developed to RBS' heavy load control program NUREG-0612 cover load handling operations for includes procedures to cover load Lift height limits, consistent with the Section heavy loads that are, or could be handling operations for heavy drop analyses will be included in the 5.1.1(2) handled over, or in proximity to loads, including those handled by operating procedures, as appropriate.
irradiated fuel or safe shutdown teFCC equipment. the_ _ _ _ _ _ _ _
Crane operators are trained in the area of heavy load handling, safe load paths, and the potential Crane operators should be trained, consequences of load drops over SEction qualified, and conduct themselves in the reactor vessel, spent fuel Section accordance with Chapter 2-3 of ANSI pool, and safe shutdown 5.1.1(3) B30.2-1 976. equipment. They conduct themselves appropriately in accordance with this training. The training is based upon ANSI
_B30.2-1976.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 2 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section The redundant rigging system (Figure 3 of Attachment 2 to LAR 2004-26) is comprised of upper links, lower links, Thespecial liftingdevicesused and connecting slings. The upper withthe FBCHC to handle heavy links are attached to the crane NUREG061withd theqFBred torhadle heavyg structure and are not a special lifting Section Special lifting devices should satisfy ldcask roading operati ns (is e device. The upper links are designed Section gielnsofASIN46 . caske lf loaingyoperaxtions(ioe, the with safety factors of 3 and 5 to yield MPC lift cleats) satisfy the and ultimate strength, respectively.
guidelines of ANSI N14 6-1993 The lower links also do not meet the
. 9. definition of a special lifting device.
However, Entergy has chosen to design them in accordance with the
_guidance of ANSI N14.6-1993.
The lifting devices used with the Slings are used to lift and lower the FB3CHC to handle heavy loads empty MPC, the MPC lid, and the NUREG-0612 Lifting devices that are not specially required for dry storage cask loaded MPCuand ar also part of thed SEction designed should be installed and used loading operations that are not re most horizonta transfergask Section in accordance with the guidelines of specially designed (i.e., slings, for most horzontal transfer cask 5.1.1(5) ANSI B30.9-1971. rigging, connecting devices) movements. The redundant load path satisfy the guidelines of ANSI slings connect the upper and lower B30.9-1984. crane links (see Figure 3 in
. 9. Attachment 2 to LAR 2004-26).
The FBCHC is inspected, tested, NUREG-0612 The crane should be inspected, tested, and maintained in accordance Section and maintained in accordance with wipe r SI B30.2-1976. Two 5.1.1(6) Chapter 2-2 of ANSI B30.2-1976. periodic inspections are performed, on a 6-month and an 18-month frequency.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 3 of 44 I THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section The crane should be designed to meet NRC Supplemental SER for RBS NUREG-0612 the applicable criteria and guidelines of The FBCHC was designed to dated January, 1985, Section 2.3.7 Section Chapter 2-1 of ANSI B30.2-1976 and meet the applicable criteria and concludes that the FBCHC design 5.1.1(7) CMAA-70 or suitable alternative guidelines of CMAA 70-1971 and complies with CMAA-70-1975 and provided the intent of ANSI B30.2 and ANSI B30.2-1967. ANSI B30.2-1 976.
CMAA-70 is satisfied.
The FBCHC is being upgraded only to the extent that a redundant rigging feature is being Special lifting devices that are used for incorporated in the design. The heavy loads in the area where the redundant rigging is engaged crane is to be upgraded should meet above the crane hook and, ANSI N14.6-1978, including Section 6 therefore, does not meet the NUREG-0612 of that document. If only a single lifting definition of a special lifting Load drops have been postulated in Section device is provided instead of dual device. Below the hook, the lift the areas where the lift yoke 5.1.6(1)(a) devices, the special lifting device yoke and MPC lift cleats are extension is used.
should have twice the design safety designed in accordance with factor as required to satisfy the ANSI N14.6 with twice the design guidelines of NUREG-0612, Section safety factor. The lift yoke 5.1.1(4). extension is designed in accordance with ANSI N14.6 but the design safety factors are not doubled.
Attachment to RBG-46426 NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR Page 4 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes Lifting devices that are not specifically designed and that are used for handling heavy loads in the area where the crane is to be upgraded should meet ANSI 830.9- 1971, "Slings" as specified in NUREG-0612 ThFBHisbngurae Section 5.1.1(5), except that one of the only to the extent that da following should also be satisfied oednly exteint thatur ntoh a sben unless the effects of the drop of the incorporated in the design. The particular load have been analyzed slings used in the redundant and shown to satisfy the evaluation sling use the rant NUREG-0612 criteria of NUREG-0612, Section 5.1: are designed in accordance whoo Section ANSIB30.9.MPC lift slings, MPC 5.1.6(1 )(b) (i) Provide dual or redundant slings lid liftand slings, other connection or lifting devices such that the devices used below the crane failure a single component failure desiused bl tecrane or malfunction in the sling will not hook are designed in accordance result in uncontrolled lowering of with ANSI B30.9 to twice the load the load; called for in meeting Section OR 5.1.1(5).
(ii) In selecting the proper sling, the load used should be twice what is called for in meeting NUREG-0612, Section 5.1.1(5).
This criterion is not applicable NUREG-0612 New cranes should be designed to because the FBCHC is not a new Section meet NUREG-0554. crane. The FBCHC was designed 5.1.6(2) metNRG05.before the issuance of NUREG-
_ _ __ _ _ _ __ _ __ __ _ _ __ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 0 5 5 4. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 5 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document aDoSeti and Section Guidance Evaluation Notes Interfacing lifting points, such as lifting lugs or cask trunnions should also meet one of the following for heavy loads handled in the area where the crane is to be upgraded unless the effects of the drop of the particular load have been analyzed and shown to satisfy the evaluation criteria of NUREG-0612, Section 5.1:
Provide redundancy or duality such The lifting trunnions of the HI-(a) single lift orfalill suchTRAC transfer cask have a NUREG-0612 thata single lift point failure will not design safety factor greater than Section the load; lift points should have a static the mamicoad.nA 5.1.6(3) design safety factor with respect to static and dynamic load. A ultimate strength of five (5) times dynamic load factor of 1.1 l5is the maximum combined concurrent applied to the mass of the lifted static and dynamic load after taking load.
the single lift point failure.
OR (b) A non-redundant or non-dual lift point system should have a design safety factor of ten (10) times the maximum combined concurrent static and dynamic load.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 6 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes The design stress limits of the FBCHC structural members are in accordance with CMAA 70-1971. Load-carrying parts other The allowable design stress limits for than structural members and NUREG-0554 the crane intended for plant operation hoisting ropes are designed to a Section 2.1 should be those indicated in Table maximum stress level of 20% of (Item 1) 3.3.3.1.3-1 of CMAA 70 reflecting the ultimate strength of the material.
appropriate duty cycle in CMAA 70. The crane was also re-qualified by analysis in 2002 considering a load on the hook using CMM 70-2000 allowable stresses and loadings.
The sum total of simultaneously The FBCHC was designed not to applied loads (static and dynamic) exceed material yield strengths NUREG-0554 should not result in stress levels undee matial yic streng SRetion 21 causing permanent deformation, other conditions. Dynamic loading is FBCHC main hoist speed is 6 fpm.
SIecto (Item 2)2.1 than localized any part of the strain concentration, handling in system during addressed 15% impactthrough the use load factor of aon based either the construction or the operation a hoist speed of 30 ft/min or less.
_phase.________________
The FBCHC main hook hoist is designed for stepped, variable The effects of cyclical loading induced speed operation with a load on NUREG-0554 by jogging or plugging an the hook ranging from 0.5 fpm Section 2.1 uncompensated hoist control system (inching speed) to 6 fpm (normal (Item 3) should be included in the design speed). The use of inching specification. speed during cask handling prevents cycling due to jogging or plugging. Therefore, this requirement does not apply.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 THE RBS FUEL BUILDING CASK HANDLING CRANE Page 7 of 44 Document and Section Guidance Evaluation Notes A single-failure-proof crane should be Component parts of the FBCHC designed to handle the maximum are designed for an MCL of 125 critical load (MCL) that will be tons - the maximum weight of the G imposed. However, a slightly higher HI-TRAC transfer cask. The NURE -0554 design load should be selected for intent of this guideline is met by (Item 1) component parts that are subjected to requiring hoisting ropes and other wear and exposure. An increase of load-carrying parts (other than approximately 15% of the design load structural members) to have a for these components would be a rated-load minimum safety factor reasonable margin. of five.
NUREG-0554 The MCL rating should be clearly The FBCHC MCL is marked on Section 2.2 marked on the crane. the crane.
(Item 2) ______________
Single-failure-proof cranes may be required to handle occasional The FBCHC is designed and noncritical loads of magnitude greater used to lift spent fuel shipping than the MCL during plant and storage cask components as NUREG-0554 maintenance periods. For such cases, well as other waste containers.
Section 2.2 the maximum noncritical load will be The heaviest of these lifts is the No lifts greater than the MCL (rated (Item 3) the design rated load (DRL). The HI-TRAC 125D spent fuel transfer capacity) are permitted with the design of certain components may be cask, which has a maximum lifted decided to a greater extent by the MCL weight of 125 tons. Therefore, the rating even though standard MCL and the DRL are the same commercial practice may be used for for this crane.
the DRL rating.
NUREG-0554 The DRL rating should be marked on The MCL and DRL are the same Section 2.2 the crane separately from the MCL for the FBCHC. Therefore, no (Item 4) marking. separate DRL marking is required.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 8 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section Giac The FBCHC is located inside the RBS Fuel Building and operates both indoors and outdoors. It is kept indoors when not in use.
The operating environment, including Because of its Fuel Building maximum and minimum pressure, location, the FBCHC is not maximum rate of pressure increase, affected by potential containment NUREG-0554 temperature, humidity and emergency pressurization events; therefore Section 2.3 corrosive or hazardous conditions the rate of pressure increase and should be specified for the crane and the effects of a corrosive lifting fixtures. environment (i.e., containment spray) are not applicable.
Appropriate environmental conditions of service are established in the procurement specification.
The FBCHC indoor test lift was required to be performed at a Cask loading procedures will require temperature of 200 F or higher. an ambient temperature > 700F for all For cranes already built and operating; The actual indoor test lift was havy loadifs Thisisconsise NUREG-0554 such cranes should be tested by performed in September, 1983. with Nload lif2t Appendix Copage Section 2.4 subjecting the crane to a test lift at the The FBCHC outdoor test lift was wite (UREG-061n, AppenIX r,page (Item 1) lowest anticipated operating performed at a minimum load test in the future if experience temperature. temperature of 74.5 0F. Dry spent dictatestanloweftroeraingxerec fuel cask loading operations will dictates a lower operating not be conducted at temperatures temperature is desirable.
below 700F.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 9 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section Giac Cask loading procedures will require Minimum operating temperatures The FBCHC's minimum design an ambient temperature > 70oF for all NUREG-0554 should be specified in order to reduce temperature is 20F. Dry spent heavy load lifts. This is consistent Section 2.4 the possibility of brittle fracture of the fuel cask loading operations will with NUREG-0612, Appendix C, page (Item 2) ferritic load-carrying members of the not be conducted at temperatures load test in the future if experience crane. below 70 F.lodtsinteftrifxpinc dictates a lower operating temperature is desirable.
In order to ensure resistance to brittle Cask loading procedures will require fracture, material for structural . o members essential to structural Structural steel used in the an ambient temperature> 700 F for all NUREG-0554 integrity should be tested in FBCHC is ASTM A36. Material heavy load lifts. This is consistent Section 2.4 accordance with the following impact certifications for steel used in with NUREG-0612, Appendix C, page (Item 3) test requirements. Either drop weight construction of the FBCHC do not C-2, item (2). Entergy may perform a test per ASTM E-208 or Charpy tests include impact test results, load test in the future if experience per ASTM A-370 may be used for dictates a lower operating impact__testimpactemperature is desirable.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 10 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes The minimum operating temperature based on the drop weight test should be obtained by following procedures in Paragraph NC-2300 of Section III of the ASME Code. The minimum operating temperature based on the Charpy V-notch impact test should be obtained by following procedures in paragraph ND-2300 of Section III of the ASME Code. Alternative methods of fracture analysis that achieve an equivalent margin of safety against Cask loading procedures will require fracture may be used if the include an ambient temperature > 700 F for all toughness measurements on each Structural steel used in the heavy load lifts. This is consistent NUREG-0554 heat of steel used in structural FBCHC is ASTM A36. Material certifications for steel used in with NUREG-0612, Appendix C, page Section 2.4 members essential to structural C-2, item (2). Entergy may perform a (Item 4) integrity. In addition, the fracture construction of the FBCHC do not load test in the future if experience analysis that provides the basis for include impact test results.
dictates a lower operating setting minimum operating temperature is desirable.
temperatures should include consideration of stress levels; quality control; the mechanical checking, testing, and the temperatures at which the DRL test is run relative to operating temperature.
For crane girder material section thickness over 64 mm (2.5 in), it is recommended that the NC-2300 requirements be used exclusively.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 11 of 44 I THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes As an alternative to the above recommendations, the crane and lifting fixtures for the cranes already fabricated or operating may be subjected to a coldproof test consisting of a single dummy load test follows:
Metal temperature of the structural members essential to the structural integrity of the of the crane handling system should be at or below the minimum operating temperature. The corresponding dummy load should be equal to 1.25 times the MCL. If the desired minimum operating NUREG-0554 temperature cannot be achieved Section 2.4 during the test, the minimum operating (Item 4) temperature should be that of the test (continued) until the crane is retested at a lower temperature. The coldproof test should be followed by a nondestructive examination of the welds whose failure could result in the drop of a critical load. The nondestructive examination of critical areas should be repeated at 4-year intervals or less.
Cranes and lifting fixtures made of low-alloy steel such as ASTM A514 should be subjected to the coldproof test in any case.
I _____________________________________ L ________________________________ L
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 12 of 44 I THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes N- iron should not be used for load Cast No cast iron is used for any NUREG- Casrirong cpouenots sh asefrloa component subject to cyclic 0554 bearing components such as rope stress, except for the main trolley Section 2.4 drums. Cast iron may be used for traverse drive gear cases, wheel (Item 5) items such as electric motor frames bearing capsules, brake wheels, and brake drums, and some brake parts.
The FBCHC design does not include a main bridge. Seismic calculations The cranes should be designed to The FBCHC main trolley, show that the main hoist wire rope retain control of and hold the load, and auxiliary trolley, and auxiliary exceeds its yield strength under SSE 0554 the bridge and trolley should be bridge are designed to ensure the loads but maintains a minimum factor Section 2.5 designed to remain in place on their bridge and trolleys remain in of safety of 1.475 against ultimate (Ictemn1.) respective runways with their wheels place and their wheels do not strength when the load is supported (Item 1) prevented from leaving the tracks leave their rails and no trolley part solely by the main hoist. Redundant during a seismic event. falls during a seismic event. rigging will be engaged to hold the load in case of failure in the primary load path in areas where load drops have not been analyzed.
If a seismic event comparable to a safe NUREG- shutdown earthquake (SSE) occurs, The FBCHC is designed to 0554 the bridge should remain on the ensure the bridge and trolleys will Section 2.5 runway with brakes applied, and the not leave their rails during or after (Item 2) trolley should remain on the crane a safe shutdown earthquake.
girders with brakes applied.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 13 of 44 I THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes The crane should be designed and constructed in accordance with regulatory position 2 of Regulatory The FBCHC was qualified for NUREG- Guide 1.29, "Seismic Design normal operation assuming a Tcv 0554 Classification". The MCL plus 1.1o5 dynamic load factor and to he Section 2.5 operational and seismically induced remain on its rails and not drop rated load on the hook with the hoist (Item 3) pendulum and swinging load effects on the load during a safe shutdown rope extended to various lengths.
the crane should be considered in the simceet design of the trolley, and they should seismic event.
be added to the trolley weight for design of the bridge.
Load girt and drive girt end All weld joints whose failure could connection welds on the FBCHC result in the drop of a critical load trolley were non-destructively NUREG- should be nondestructively examined. All FBCHC welds were visually examined following recent 0554 If any of these weld joint geometries examined. All welds of the main modifications implemented to hoist gears, pinions, and shaft increase the trolley's seismic 0554 Section 2.6 would susceptibleointo I.6awo betld goeries to lamellar tearing, the base metal at the joints assemblies were MT inspected. capacity. Other welds on the trolley should be nondestructively examined. were non-destructively examined on a sampling basis to assure the quality of the component.
A fatigue analysis should be considered for the critical load-bearing NUREG- structures and components of the The FBCHC is a low duty cycle 0554 crane handling system. The cumulative device. A fatigue analysis is not Section 2.7 fatigue usage factors should reflect required.
effects of the cyclic loading from both the construction and operating periods.
NUREG- Preheat temperatures and post-weld Preheat temperatures and post-0554 heat treatment (stress relief) weld heat treatment of weldments Section 2.8 temperatures for all weldments should were performed and documented (Item 1) be specified in the weld procedure. as required by AWS D1.1-1 972.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 14 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Evaluation Notes and Section Guidance All welding was performed and Per NUREG-0612, Appendix C, page documented in accordance with C-3, item (3), some crane weldments Welds described in the AWS D1.1-1 972. Other than the may not have been heat treated per Wedeommendationso Shecto 26main rU- and auxiliary hoist reducer Subarticle 3.9 of AWS 01.1-1972. As 0554 recommendations of Section 2.6 weldments, which were thermally a substitute for weld heat treatment, Setin .8 should be post-weld heat treated in werdmentsiwhichweres thermallyd welds whose failure could result in (Item 2) accordance with Subarticle 3.9 of AWS with all other bridge and trolley the drop of a critical load should be (IeD2 1.1, 'Structural Welding Code". withmeall oterbrde anotsbetd trole non-destructively examined to weldhentwreanot stedt ascertain that the weldments are post-weld heat treatment (stress acceptable. See notes for NUREG-relief). 0554, Section 2.6 above.
NUREG- All auxiliary hoisting systems of the The FBCHC auxiliary hook is not 0554 main crane handling system that are employed to lift or assist in Section 3.2 employed to lift or assist in handling handling heavy loads during cask (Item 1) critical loads should be single failure loading operations.
The FBCHC main hoisting A complete review of cask Auxiliary systems or dual components mechanism is not single-failure operations, including potential load NUREG- should be provided for the main proof by design. Redundant drops has been performed.
0554 hoisting mechanism so that, in case of rigging is employed during most Evaluations and analyses of Section 3.2 subsystem or component failure, the horizontal movements of the cask hypothetical drops required to be (Item 2) load will be retained and held in a to provide temporary single- postulated have been performed. No stable or immobile safe position. failure-proof protection against unacceptable consequences of load drops. drops are predicted.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 15 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document and Section Guidance Evaluation Notes The main and auxiliary hoists have limit switches that stop the hook in its highest and lowest safe positions. Two limit switches, each of a different design and in series, limit upward travel of each hook. A block type switch is used on the cable and a screw type on the drum, which are adjusted such that if one fails the other will shut off power to the motor and set the brakes. The limit switch actuating mechanisms are located so that the switches will trip under all The automatic controls and limiting conditions of hoist load and hoist speed, The main hoist is equipped with an devices should be designed so that, in sufficienthtimetreven c heatofthve° alternator-excited eddy current when disorders due to inadvertent or any part of the trolley. The main hoist lowering control brake system, which operator action, component is also provided with aslack cable limit is capable of maintaining a controlled NUREG- malfunction, or disarrangement of switch to prevent hoisting or lowering lowering speed of the 125-ton rated 0554 subsystem control functions occur against a slack cable. And with a load, in the event of a loss of all AC Section 3.3 singly or in combination during the load holding brakes in the event of an power or electrical failure of the (Item 1) handling, and assuming no overspeed. The centrifugal limit switch is hoist's motor controller. Emergency components have failed in the located such that if a shaft or coupling lowering of the main hoist using the subsystems, these disorders will not fails and causes disengagement of the eddy current brake requires that the prevent thepreventit handling system from main hoist motor and one holding would still trip upon the ensuing brake, two hoist holding brakes be manually stopping and holding the load. overspeed and engage the remaining released.
holding brake to stop uncontrolled movement of the load. The centrifugal limit switch is also located such that there is no coupling between the switch and the main hoist gears.
Each hoist is provided with an overload cutoff that senses an overload on the hoist and stops the hoisting motion, but allows safe lowering of the load to the floor. The load limiting device is adjustable up to 130% of rated load.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 16 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section The FBCHC operator cab includes a safety switch to disconnect the main power feed NUREG- conductors from the motor control 0554 An emergency stop button should be stations. The cab also includes a Section 3.3 added at the control station to stop all "reset-stop' pushbutton station (Item 2) motion. with a red stop button that opens the main line electrical contactor.
Opening this contactor will stop all motion.
The FBCHC main and auxiliary hoists are provided with holding brakes that are automatically applied to the hoist motor shaft when the motor is de-energized.
The main hoist is equipped with Ac e t an alternator-excited eddy current A crane that has been immobilized lowering control brake system, NUREG- becau malfunction se of or failure of which is capable of maintaining a 0554 controls or components while holding a controlled lowering speed of the Section 3.4 critical load should be able to hold the 125-ton rated load, in the event of (Item 1) load or set the load down while repairs a loss of all AC power or or adjustments are being made. electrical failure of the hoist's motor controller. Emergency lowering of the main hoist using the eddy current brake requires that the two hoist holding brakes be manually released.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 17 of 44 I THE RBS FUEL BUILDING CASK HANDLING CRANE DocumSent Guidance Evaluation Notes Means should be provided for using the devices required in repairing, The main hoist is equipped with adjusting, or replacing the failed an alternator-excited eddy current component(s) or subsystem(s) when lowering control brake system, failure of an active component or which is capable of maintaining a NUREG- subsystem has occurred and the load controlled lowering speed of the 0554 is supported and retained in the safe 125-ton rated load, in the event of Section 3,4 (temporary) position with the handling a loss of all AC power or (Item 2) system immobile. As an alternative to electrical failure of the hoist's repairing the crane in place, means motor controller. Emergency may be provided for safely transferring lowering of the main hoist using the immobilized hoisting system with the eddy current brake requires its load to a safe laydown area that has that the two hoist holding brakes been designed to accept the load while be manually released.
the repairs are being made.
The design of the crane and its operating area should include provisions that will not impair the safe The FBCHC operates and is NUREG- operation or safe shutdown of the maintained in the Fuel Building.
0554 reactor or cause unacceptable release Its operation and maintenance do Section 3.4 of radioactivity when corrective repairs, nots oeaffect the mabiiynfthenranctor (Item 3) replacements, and adjustments are nto opferatteorbelt s fhutow seafely.
being made to place the crane to operate or be shutdown safely.
handling system back into service after component failure(s).
A complete review of cask Design of the rope reeving system(s) The FBCHC does not have a dual operations, including potential load NUREG- should be dual with each system (re dundant) roe reevinnsstem drops has been performed.
0554 providing separately the load balance ( ae reeving systes . Evaluations and analyses of Section 4.1 on the head and load blocks through mlthreevng arrangement Is a hypothetical drops required to be (Item 1) configuration of ropes and rope multi-part, doub e reeved system, postulated have been performed. No equalizer(s),e unacceptable consequences of load
__________ __________________________ ______________________drops are predicted.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 THE RBS FUEL BUILDING CASK HANDLING CRANE Page 18 of 44 DocumSent Guidance Evaluation Notes The FBCHC sheaves are Selection of the hoisting rope or provided with cable retainers to running rope should include prevent the cables from leaving NUREG- consideration of the size, construction, the sheave grooves. The hoisting 0554 lay, and means or type of lubrication, if ropes are right regular lay, pre-Section 4.1 required, to maintain efficient working formed steel with independent (Item 2) of the individual wire strands when wire rope centers. Rope each section of rope passes over the lubricants (including those for individual sheaves during the hoisting pre-lubricating the internal core operation. and rope lays during weaving) are not water soluble.
The effects of impact loadings, acceleration, and emergency stops The FBCHC wire rope was should be included in selection of rope selected so that the rated hoist NUREG- reeving systems. The maximum load load plus the weight of the load 0554 (including static and inertia forces) on block, divided by the number of Section 4.1 each individual wire rope in the dual parts of rope does not exceed 20 (Item 3) reeving system with the MCL attached percent of the nominal breaking should not exceed 10% of the strength of the rope (a safety manufacturer's published breaking factor of five).
strength.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 19 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section The ratio of wire rope yield strength to ultimate strength may vary sufficiently for different production runs to The FBCHC hoisting ropes are influence the wire rope rating in such a designed so that the rated hoist manner that the initial safety margin load plus the weight of the load NUREG- selected would be too small to prevent block for that hoist, divided by the 0554 the critical load from straining the wire number of parts of rope for the Section 4.1 rope material beyond the yield point hoist does not exceed 20 percent (Item 4) under abnormal conditions. It would, of the nominal breaking strength therefore, be prudent to consider the of the rope (a safety factor of wire rope yield strength as well as the fiter ultimate strength when specifying wire five).
rope in order to ensure the desired margin on rope strength.
Attachment to RBG-46426 NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR Page 20 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE DocumSent Guidance Evaluation Notes The FBCHC is a 'stand-by" service crane (used The maximum fleet angle from drum to approximately every 18 months), Per NUREG-0612, Appendix C, page lead sheave in the load block or whre atigu t he wire C-3 item (4), in lieu of meeting this betwen idiviualsheaes souldnotrope is highly unlikely.
between individual sheaves should not 1971 (the code of record for the CMAA 70- C-,ie fleet angle 4,i ie fmeigti recommendation, a "more exceed 0.061 rad (3-1/2") at any one RBC FBCHC did not of frequent inspection program" for the point during hoisting except that for the rBC F fl did anspeclfy not wire rope is acceptable for ensuring NUREG- last 1 m (3 ft) of maximum lift elevation rope reeving flee ange the integrity of the rope. For this 0554 the fleet angle may increase slightly. limitactins. Therna service, the crane manufacturer Section 4.1 The use of reverse bends for running manufacturer s internal standard recommends inspecting the wire rope Sec 4.1 wire ropes should be limited, and the practicef istw.ir roPe either prior to, or after use of the (Item 5) use of larger sheaves should be reeving design was to limit the crane (i.e., on an 18-month interval) considered for those applications maximum fleet angle at any point RBS maintenance procedures require where a disproportionate reduction in deirees to ensure satisfacto inspection of the wire rope every six wire rope fatigue life would be roe tofensurestisa ry months, which meets the NUREG-expected from the use of standard arrangement employed on the 0612 recommendation for more sheave diameters for reverse bends. RBS FBCHC does not expose frequent inspections.
the wire rope to a reverse bend condition.
The equalizer for stretch and load on the rope reeving system may be of For most horizontal load movements, either beam or sheave type or The FBCHC host s equippedundant rigging is engaged to the combinations thereof. A dual rope with a sheve-t ieequalizer, not lift yoke to provide single failure NURE revingsystm wih inivwith barsev-type equalizer h , noit protection against drops. A complete 054attaching points and means for reigarrayp e mequaizer e muli- review of cask operations, including Section 4.1 balancing or distributing the load pareeving double-eed istam potential load drops has been (Ie) between the two operating rope uizngoepcefwreoe. performed. Evaluations and analyses (Item 6) reeving systems will permit either rope utilizing one piece of wire rope. of hypothetical drops required to be system to hold the critical load and e crane des no ave a ua postulated have been performed. No transfer the critical load without la pat rope reeving system. unacceptable consequences of load excessive shock in case of failure of drops are predicted.
the other rope system.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 21 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document and Section Guidance Evaluation Notes The pitch diameter of running sheaves and drums should be selected in accordance with the recommendations of CMAA Specification #70. The dual For most horizontal load movements, reeving system may be a single rope The pitch diameter of the FBCHC redundant rigging is engaged to the from each end of a drum terminating at running sheaves is in accordance lift yoke to provide single failure NUREG- one of the blocks or equalizer with with CMAA 70-1971. The hoist protection against drop s.A complete 0554 provisions for equalizing beam-type reeving is a conventional double penial oad opsrasbn Section 4.1 load and rope stretch, with each rope reeved system, utilizing one piece potential load drops has been (Item 7) designed for the total load. of wire rope. The crane does not performed. Evaluations and analyses Alternatively, a 2-rope system may be have a dual load path rope of hypothetical drops required to be used from each drum or separate reeving system. postulated have been performed. No drums using a sheave equalizer or unacceptable consequences of load beam equalizer or any other drops are predicted.
combination that provides two separate and complete reeving systems.
For most horizontal load movements, In the event of a failure of either redundant rigging is engaged to the The load hoisting drum on the trolley Inthe evenhit du hf rdu lift yoke to provide single failure should be provided with structural and the main hoist drum shaft or drum protection against drops. A complete NUREG- mechanical safety devices to limit the bearing at the drive end of thecask operations, including 0554 drop of the drum and thereby prevent it drum, no mechanical or structural potential load drops has been Section 4.2 from disengaging from its holding means are provided to prevent performed. Evaluations and analyses brake system if the drum shaft or drumngagme of two holding of hypothetical drops required to be bearings were to fail or fracture. brakes. postulated have been performed. No unacceptable consequences of load drops are predicted.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 22 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section Giac For most horizontal load movements, redundant rigging is engaged to the The FBCHC is designed to lift yoke to provide single failure NUREG- The head and load blocks should be maintain the vertical load balance protection against drops. A complete 0554 designed to maintain a vertical load about the center of lift from the review of cask operations, including Section 4.3 balance about the center of lift from load block through the head potential load drops has been (Item 1) load block through head block and block, but does not have a dual performed. Evaluations and analyses have a reeving system of dual design. (redundant) reeving system of hypothetical drops required to be design. postulated have been performed. No unacceptable consequences of load drops are predicted.
The load-bock assembly should be The FBCHC design does not provided with two load-attaching points have redundant load-attaching (hooks or other means) so designed points. The main hook is of the NUREG- that each attaching point will be able to sister-hook type and has a design NUREG-0612, Appendix C, page C-0554 support a load of three times the load factor of safety to ultimate of 5.0. 3, item (5) for operating plants allows Section 4.3 (static and dynamic) being handled For most horizontal load for a sister hook in lieu of two (Item 2) without permanent deformation of any movements, redundant rigging is attachments points to meet the intent e part of the load-block assembly other engaged to the lift yoke to provide of this guidance.
than localized strain concentration in single failure protection against areas for which additional material has drops (See Section 4.7.2 of been provided for wear. Attachment 1 to LAR 2004-26).
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 23 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section The FBCHC structural The individual component parts of the components were designed for vertical hoisting system components, 100% static rated load (maximum which include the head block, rope critical load) and analyzed for a reeving system, load block, and dual 1.15 dynamic load factor. The The following tests and inspections load-attaching device, should each be crane main hook was factory were not required by the FBCHC designed to support a static load of tested at 1.25 times its rated load. procurement specification (1975):
200% of the MCL. A 200% static-type Hoisting ropes and load-carrying load test should be performed for each parts other than structural
- 200% MCL static load test for NUREG- load-attaching hook. Measurements of members have a design safety the hook(s) 0554 the geometric configuration of the factor of five. Structural members
- Measurements of the Section 4.3 hooks should made before and after are designed with stress (Ie ) the test and should be followed by a allowables in accordance with geometoric configuaftion lofath nondestructive examination that should CMAA 70-1971. testing consist of volumetric and surface
- Volumetric inspection of the examinations to verify the soundness The main hook was MT- hook before and after load of fabrication an ensure the integrity of examined before and after load testing the hooks. The load blocks should be testing. The main hook forging e No nondestructively examined by surface billet was UT-examined to verify
- NDE of the load block(s) and volumetric techniques. The results the soundness of the raw material of examinations should be documented used to fabricate the main hook.
and recorded. Examination results are documented.
The calculated maximum main hoist The maximum FBCHC normal design "rated load" speed is 5.88 fpm, Maximum hoisting speed for the critical hoisting speed for the MCL is 6 recommeended in C 70-spee971 for 0554 lodsol elmtdt htgvn6nfmad"nhn pe"i . the maximum critical load. The 5.88 Section 4.4 the "slow" column of Figure 70-6 of fpm. CMAA 70-1971, Table 70-6 the maximum hoit load yiel5.88 CMAA Specification #70. specifies 5 fpm slow speed for maximum rope line speed at the drum this capacity crane. of 35 fpm, which is less than the suggested line speed limit of 50 fpm.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 24 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section No specific provisions for addressing the consequences of two-blocking are included in the NUREG- The reeving system should be FBCHC design. Each hoist 04 . includes limit switches to stop the 0554 designed to prevent the cutting or hook at its highest and lowest Section 4.5 crushing of the wire rope if a "two- safe positions. Two differently (Iteml) blocking" incident should occur. designed limit switches, used in series, provide redundancy and diversity to limit the upward travel of each hoist hook.
The FBCHC design includes load limiting devices that stop hoisting operations upon indication of an NUREG-0612, Appendix C, page C-overload condition. No specific 3, item (7) suggests interlocking The mechanical and structural provisions for addressing the circuitry to preclude bridge and trolley NUREG- components of the complete hoisting consequences of two-blocking movement while hoisting the load in 0554 system should have the required are included in the FBCHC lieu of load hang-up protection. The Section 4.5 strength to resist failure if the hoisting sitE ost t FBCHC does not have this (Item 2) system should "two-block" or if "load highest andst the positions interlocking circuitry. Cask loading hang-up" should occur during hoisting. Twohigestandlowest safe positions.
differently designed limit intrlockdreing FBCHC trolley cprcuand hoisting Cskmuloadngou iitry switches, used in series, provide redundancy and diversity to limit the upward travel of each hoist hook.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 25 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes Each hoist includes limit switches to stop the hook at its highest and lowest safe positions. Two The designer should provide means differently designed limit within the reeving system located on switches, used in series, provide the head or on the load-block redundancy and diversity in combinations to absorb or control the limiting the upward travel of each kinetic energy of rotating machinery hoist hook. A block-type limit during the incident of two-blocking. As switch is used on the cable and a an alternative, the protective control screw-type is used on the drum.
system to prevent the hoisting system They are adjusted such that if from two-blocking should include, as a one limit switch fails the other NUREG-minimum, two independent travel-limit shuts off power to the motor and 0554 devices of different designs and sets the brakes. The actuating Section 4.5 activated by separate mechanical mechanisms of the limit switches (Item 3) means. These devices should de- are located so that they trip the energize the hoist drive motor and the limit switches under all conditions main power supply. The protective of hoist load and hoist speed in control system for load hang-up, a part sufficient time to prevent contact of the overload protection system, of the load block with the drum, should consist of load cell systems in upper sheaves, or any part of the the drive train or motor-current-sensing trolley.
devices or mechanical load-limiting devices. Each hoist includes an overload cutoff that senses the load on the hoist and stops the hoisting motion in an overload condition.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 26 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes The load control for the main Although the two main hoist holding The location of mechanical holding hoist is provided by an eddy brakes are each capable of resisting brakes and their controls should current control brake for hoisting the maximum hoist motor torque, they provide positive, reliable, and capable and lowering motions. cannot be "manually applied" in the NUREG- means to stop and hold the hoisting Accompanying the control brake event an electrical control malfunction 0554 drum(s) for the conditions described in are two independent shoe-type occurs and power to the hoist motor Section 4.5 the design specification and in this holding brakes that are cannot be shut off. In this event, the (Item 4) recommendation. This should include automatically applied to the hoist hoist brakes may be indirectly set by capability to withstand the maximum motor shaft when the motor is de- either pressing the crane "power torque of the driving motor if a energized. Both of the holding stop" button or by pulling the handle malfunction occurs and power to the brakes have a minimum rated on the main line disconnect switch driving motor cannot be shut off. braking torque of 150% of the (mounted in the operator's cab) to the motor full load torque. "open/off" position.
NUREG- The auxiliary hoist, if supplied, should 0554 be equipped with two independent The FBCHC auxiliary hoist is not Section 4.5 travel-limit switches to prevent two- used in cask handling operations.
(Item 5) blocking.
Lifting devices that are attached to the load block such as lifting beams, yokes, ladle or trunnion-type hooks, slings, toggles, and devises should be NUREG- conservatively designed with a dual or See evaluation for NUREG-0612, 0554 auxiliary device or combinations Sections 5.1.1(4), 5.1.1(5),
Section 4.6 thereof. Each device should be 5.1.6(1)(a), and 5.1.6(1)(b).
designed or selected to support a load of three times the load (static or dynamic) being handled without
_permanent deformation.
If side loads cannot be avoided, the Side loading of the FBCHC is not NUREG- reeving system should be equipped required or expected during cask 0554 with a guard that would keep the wire handling activities. All lifts are Section 4.7 rope properly located in the grooves on purely vertical.
the drum.________________________________
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 THE RBS FUEL BUILDING CASK HANDLING CRANE Page 27 of 44 and Section Guidance Evaluation Notes The FBCHC structural members are designed so that the stress in The proper functioning of the hoisting the material does not exceed NUREG- machinery during load handling can CMAA 70-1971 limits when lifting 0554 best be ensured by providing adequate the rated load. FBCHC load-Section 4.8 support strength of the individual carrying parts other than (Item 1) component parts and the welds or structural members are designed bolting that binds them together. with a safety factor of five against ultimate strength when lifting the rated load.
The FBCHC is not of the single- A complete review of cask Where gear trains are interposed failure-proof design. For most operations, including potential load NUREG- between the holding brakes and the horizontal load movements, drops has been performed.
0554 hoisting drum, these gear trains should redundant rigging is engaged to Evaluations and analyses of Section 4.8 be single failure f ad hd b f the lift yoke to provide single hypothetical drops required to be (Item 2) sin e proo an sou eo failure protection against drops postulated have been performed. No ua esign.(See Section 4.7.2 of Attachment unacceptable consequences of load 1 to LAR 2004-26). drops are predicted.
Each holding brake should have more than full-load stopping capacity but should not have excessive capacity The FBCHC main and auxiliary NUREG- that could cause damage through hoist holding brakes have a 0554 sudden stopping of the hoisting minimum rated braking torque of Section 4.9 machinery. A minimum brake capacity 150% of the hoist motor full load (item 1) of 125% of the torque developedtoqe during the hoisting operation at the torque.
point of brake application has been determined to be acceptable.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 28 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes The minimum hoisting braking system The FBCHC main hoist includes should include one power control an eddy current control brake and braking system (not mechanical or two independent shoe-type Normal main hoist motor shaft speed drag brake type) and two holding holding brakes. The holding is 1800 RPM. The main hoist NUREG- brakes. The holding brakes should be brakes are automatically applied lowering control is protected by a 0554 applied when power is off and should to the hoist motor shaft when the centrifugal-type overspeed switch, Section 4.9 be automatically applied on overspeed motor is de-energized. The which is set to open (i.e., cut power SItio24 to the full holding position if a holding brakes have a minimum to) the lowering circuit, setting the two (Iem ) malfunction occurs. Each holding rated braking torque of 150% of hoist holding brakes, at an brake should have a torque rating not the hoist motor full load torque. approximate motor shaft speed of less than 125% of the full-load hoisting The holding brakes are designed 1950 RPM.
torque at point of application (location to retard the load if uncontrolled of the brake in the mechanical drive). lowering is sensed.
The minimum number of braking The FBCHC main hoist includes NUREG- systems that should be operable for a cont andlude 0554 emergency lowering after a single a control brake and two Section 4.9 brake failure should be two holding leaving two brakes available in (Item 3) brakes for stopping and controlling the event of a single brake failure.
drum rotation.
One of the two FBCHC main NUREG- The holding brake system should be hoist holding brakes is located 0554 single failure proof, i.e., any outboard of the gear case on an Section 4.9 component or gear train should be dual extended pinion shaft. There is (Item 4) if interposed between the holding no coupling between this brakes and the hoisting drums. outboard brake and the gear case.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 29 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document and Section Guidance Evaluation Notes Manual operation of the hoisting brakes may be necessary during an emergency condition, and provisions for this should be included in the deig codtin. Adeuae ea designan Thealternator-excited main hoist is equipped with eddy current dissipation from the brake should be lowering control brake system, ensured so that damage does not which is capable of maintaining a occur if the lowering velocity is controlled lowering speed of the NUREG- permitted to increase excessively. I hoist's 125-ton rated load in the 0554 may be necessary to stop the lowering event of a loss of all AC power or Section 4.9 operation periodically to prevent electrical failure of the hoist's (Item 5) overheating and permit the brake to motor controller. Emergency dissipate the excess heat. Portable (eddy contrake)Emergenc instruments should be used to indicate (hedd currnhit beurae)lowerigo ha the lowering speed during emergency thed mi hodint brakeqstwheich operations. If atomlfunt~onof I a malfunction of atwo a
hoist holding brakes, which are spring-set on a loss of power, holding brake were to occur and be manually released.
emergency lowering of the load became necessary, the holding brake should be restored to working condition before any lowering is started.
The FBCH main trolley includes a Bridge and trolley drives (should be] hydraulically operated brake, NUREG- provided with control and holding brake mounted on the main trolley The auxiliary bridge is not provided 0554 systems that would be automatically motor extension shaft, to control with a separate drive. The auxiliary Section 5.1 applied when the power is shut off or if movement and an electric parking bridge is fixed to the main trolley and (Item 1) an overspeed or overload condition brake that is only engaged when movement is controlled by the main (iem occurs because of malfunction or the magnetic main power line trolley drive.
failure in the drive system. disconnect is open (de-energizing the motor).
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 30 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document and Section Guidance Evaluation Notes To avoid the possibility of drive motor overtorque within the control system, The FBCHC The main trolley the maximum torque capability of the hydraulic control brake has a NUREG- driving motor and gear reducer for minimum braking torque of 100%
0554 trolley motion and bridge motion of the of the main trolley motor full load Section 5.1 overhead bridge crane should not motor torque. The electric parking (Item 2) exceed the capability of gear train and brake has a minimum braking brakes to stop the trolley or bridge from torque of 75% of the main trolley the maximum speed with the DRL motor full load motor torque.
attached.
[Brige tolly]ndicreenta or Controls for the FBCHC main NUREG- [Bridge and trolley] incremental or trolley are full magnetic reversible 0554 fractional inholmepovements whenuc with five steps of variable speed.
Section 5.1 Items as variable speed controls or The main trolley also includes an (Item 3) inching motor drives. inching motor with a maximum speed of 0.5 fpm.
The FBCHC The main trolley hydraulic control brake has a NUREG- [Bridge & trolley] control and holding minimum braking torque of 100%
0554 brakes should each be rated at 100% of the main trolley motor full load Section 5.1 of maximum drive torque that can be motor torque. The electric parking (Item 4) developed at the point of application. brake has a minimum braking torque of 75% of the main trolley motor full load motor torque.
If two mechanical brakes, one for The FBCHC main trolley NURE4G- control and one for holding, are hydraulic control brake is 0554 provided, they should be adjusted with actuated by a foot lever located in Section 5.1 one brake in each system leading the the cab. The electric parking It other and should be activated by brake only engages when the (Iem 5) release or shutoff of power. This magnetic main [power] line applies to both trolley and bridge. disconnect is in the open position.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 31 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE DocumSent Guidance Evaluation Notes NUREG- The [bridge and trolley] brakes should also be mechanically tripped to the 0554 5 "on" or "holding" position in the event of The FBCHC trolley brakes have Section 5.1 a malfunction in the power supply or an no such feature.
(em ) overspeed condition.
The FBCHC operating cab NUREG- includes a 'reset-stop" control 0554 Provisions should be made for manual panel that opens the main Section 5.1 emergency operation of the [bridge [power] line magnetic contactor, (Item 7) and trolley] brakes. cutting all power to the trolley and hoist. The electric trolley parking can then be engaged.
The FBCHC main trolley drive is equipped with a foot-operated, NUREG- The [bridge and trolley] holding brake hydraulic shoe-type brake for 0554 should be designed so that it cannot be normal service braking. The Section 5.1 used as a foot-operated slowdown shoe-type parking (holding) brake (Item 8) brake. is non-foot-operated and automatically engages in the "power-off' condition.
The FBCHC has no drag brakes.
A hydraulic brake is used for NUREG- trolley control. The hydraulic foot-0554 [Bridge and trolley] drag brakes should operated brake is not self-be used. adjusting and receives periodic (Item 9) inspection and adjustment in accordance with he manufacturer's recommendations.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 32 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Evaluation Notes and Section Guidance The term "opposite driven wheels" refers to the rotation of the drive wheel at each end of a crane bridge or trolley when NUREG- Opposite-driven wheels on bridge or facing the end of each axle.
0554 trolley that support bridge or trolley on When originally manufactured, The FBCHC main hoist does not Section 5.1 their runways should be matched and the FBCHC main trolley drive's have a bridge.
ae 1mechanically shaft connected, (item 10) should have identical diameters. "opposite-driven wheels" were matched for diameter in accordance with the manufacturer's specified tolerance limits.
Trolley and bridge speed should be The FBCHC main trolley has an NUREG- limited. The speed limits indicated for inching speed of 0.5 fpm and a Section 5.1 slow operating speeds for trolley ad fpm, which is classified as (Item 11) bridge in specification CMAA-#70 are "medium" in CMAA-70-1 971, recommended for handling MCLs. Table 70-6. ________________
The FBCHC bridge and trolley drive motors and electrical controls are not equipped with either overspeed or overtravel NUREG- Limiting devices, mechanical and/or protective devices. Overtravel is 0554 electrical, should be provided to control stopped by contact of the bridge Section 5.2 or prevent overtravel and overspeed of and trolley-mounted bumpers (Item 1) the trolley and bridge, end travel stops. The FBCHC is precluded by design from travel outside of the safe load path designated for cask handling operations.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 33 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE andSectiont Guidance Evaluation Notes The FBCHC trolley is provided NUREG- Buffers for bridge and trolley travel with bumpers having sufficient 0554 should be included at the end of the energy absorbing capability to Section 5.2 rails stop the bridge and trolleys when (Item 2) either is traveling at a speed of 40% of rated load speed.
The FBCHC trolley does not have Safety devices such as limit-type suchce limt-yp deics Bumpersyp NUREG- switches provided for malfunction, such limit-type devices. Bumpers 0554 inadvertent operator action, or failure are provided at the ends of the Section 5.2 should be in addition to and separate rails. The FBCHC is precluded by (Item 3) from the limiting means or control design from travel outside of the devices provided for operation. safe load path designated for cask handling operations.
The horsepower rating of the hoist driving motor should be matched with The calculated required 125-ton the calculated requirement that main hoist horsepower is 55.5, NUREG- includes the design load and based upon an actual hoist speed 0554 acceleration to the design hoisting of 5.9 fpm. This is 7-1/2% less Section 6.1 speed. Overpowering of the hoisting than the rated motor horsepower (Item 1) equipment would impose additional of 60 hp. This surplus motor strain on the machinery and load- horsepower is within acceptable carrying devices by increasing the design limits.
hoisting acceleration rate.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 34 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section To preclude excessive drive-motor torque, the maximum torque capability of the electric motor drive for hoisting should not exceed the rating or capability of the individual components of the hoisting system required to hoist The two main hoist upper limit the MCL at the maximum design hoist switches will interrupt the hoisting NUREG- speed. Overpower and overspeed motion and set the two holding 0554 conditions should be considered an brakes, each of which is capable Section 6.1 operating hazard, as they may of stopping the upward (Item 2) increase the hazard of malfunction or movement of the load block the inadvertent operation. It is essential recommended 3 inches, that the controls be capable of preventing a two-block event.
stopping the hoisting movement within amounts of movement that damage would not occur. A maximum hoisting movement of 8 cm (3 in) would be an acceptable stopping distance.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 35 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes Electric circuitry design should be carefully considered so that the controls and safety devices ensure safe holding of the critical load when called upon to perform their safety function. For elaborate control The FBCHC design includes a systems, radio control, or ultimate radio remote controller. A transfer control under unforeseen conditions of switch and interlocking circuitry distress, an "emergency stop button" permits control from only the NUREG- should be placed at ground level to bridge-mounted control panel or 0554 remove power from the crane the remote controller at any one For the FBCHC, the DRL and MCL Section 6.1 independently of the crane controls. time. The radio remote control are the same.
(Item 3) For cranes with a DRL rating much system has the same operational higher than the MCL rating, it may be features for bridge, trolley, and necessary to provide electrical or hoist operation as the bridge-mechanical resetting of overload mounted control panel, including sensing devices when changing from an emergency stop button.
one operation to the other. Such resetting should be made away from the operator cab location and should be included in an administrative control program.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 36 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Documentio Guidance Evaluation Notes The (driver) control systems should be designed as a combination of electrical and mechanical systems and may include such items as contactors, The main hoist controls are relays, resistors, and thyristors in desin asa contion of combination with mechanical devices designedas a combination of and mechanical braking systems. The electrical and mechanical control system(s) provided should systems as described, in include consideration of the hoisting accordance with the design (raising and lowering) of all loads, standards in place at the time.
NUREG- included the rated load, and the effects The mechanical and ewectrical 0554 of the inertia of the rotating hoisting systems associated with the Section 6.2 machinery such as motor armature, hoist(s) have been designed with shafting and coupling gear reducer, due consideration of the effects of and drum. If the crane is to be used for all applicable and significant lifting spent fuel elements, the control loads, forces, and moments. The system should be adaptable to include FBCHC is physically unable to interlocks that would prevent trolley access individual spent fuel and bridge movements while the load assemblies in the spent fuel is being hoisted free of a storage rack, racks.
as may be recommended in Regulatory Guide 1.13, "Spent Fuel Storage Facility Design Basis".
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 37 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE DocumSent Guidance Evaluation Notes Means should be provided in the motor All motors meet applicable NEMA control circuits to sense and respond to MG1 standards. The FBCHC such items as excessive electric main hoist motors are provided current, excessive motor temperature, with thermal detectors embedded overspeed, overload, and overtravel. in the stator windings that trip the Controls should be provided to absorb motors in the event they NUREG- the kinetic energy of the rotating overheat. The main hoist motor 0554 machinery and stop the hoisting controls also include the following Section 6.3 movement reliably and safely through protective devices: current a combination of electrical power overload protection, undervoltage controls and mechanical braking protection, phase loss protection, systems and torque controls if one overspeed protection, hoist rope or one of the dual reeving overtravel protection, hoist systems should fail or if overloading of overload protection, and hoist an overspeed condition should occur. slack line protection.
Increment drives for hoisting may be provided by step-less controls or inching motor drive. If jogging or The main hoist and trolley are NUREG- plugging is to be used, the control provided with inching motors that 0554 circuit should include features to travel at 0.5 fpm. Jogging or Section 6.4 prevent abrupt change in motion. Drift plugging is not required for cask point in the electric power system, handling activities.
when provided for bridge or trolley movement, should be provided only for the lowest operating speeds.
Safety devices such as limit-type The FBCHC is provided with limit NUREG- switches provided for malfunction, The and load-limit NUREG inadvertent operator action, or failure swvitches. andslod-limitinge Section 6.5 should be in addition to and separate devices. These devices are from the limiting means or control separate from normal operating devices provided for operation. controls.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 38 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Evaluation Notes and Section Guidance The operating control system, NUREG- The complete operating control system including the "stop-reset" panel is 0554 and provisions for emergency controls located in the operator's cab, Section 6.6 for the overhead crane handling located between the main hoist It 1 system should preferably be located in and the auxiliary hoist at the end (Iem ) a cab on the bridge. of the auxiliary bridge facing the centerline of the main trolley.
NUREG- When additional operator stations are The radio remote control device 0554 considered, they should have control emulates all operations of the Section 6.6 systems similar to the main station. bridge-mounted control panel.
(Item 2) ________________
Manual controls for hoisting and trolley movement may be provided on the NUREG- trolley. Manual controls for the bridge The radio remote control device 0554 may be located on the bridge. Remote emulates all operations of the Section 6.6 control or pendent control for any of bridge-mounted control panel.
(Item 3) these motions should be identical to those provide on the bridge cab control panel.
The radio remote control station NUREG- Cranes that use more than one control includes a transfer switch and 0554 station should be provided with interlocking circuitry to restrict Section 6.6 electrical interlocks that permit only crane control to either the bridge-It 4 one control station to be operable at mounted control station or the (Iem ) any one time. remote control station at any time.
NUREG- In the design of the control system, The bridge-mounted and radio 0554 provision for and locations of devices remote control stations include an Section 6.6 for control during emergency emergency stop button.
(Item 5) conditions should be provided.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 39 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Evaluation Notes and Section Guidance Installation instructions should be provided by the manufacturer. These The crane operating and NUREG- should include a full explanation of the Tenane mang as 0554 crane handling system, its controls, maintenance manual was 0554 and the limitations for the system and provided by the manufacturer to Section 7.1 should cover the requirements for Entergy and have been translated installation, testing, and preparations into plant operating procedures.
for operation.
During and after installation of the crane, the proper assembly of NUREG- electrical and structural components FBCHC functional testing 0554 should be verified. The integrity of all including no-load and full load Section 7.2 control, operating, and safety systems tests of all motions.
should be verified as to satisfaction of installation and design requirements.
NUREG- A complete check should be made of A complete mechanical and 0554 all the crane's mechanical and electrical check of the crane was Section 8.1 electrical systems to verify the proper made to prepare the crane for (Item 1) installation and to prepare the crane for testing.
testing. 9-Information concerning proof testing on components and subsystems that was NUREG- required and performed at the Documentation of all required 0554 manufacturer's plant to verify the ability factory and field tests was Section 8.1 of components or subsystems to factory andpfield te (Ieo 81 perform should be available for the required as part of the (Item 2) checking and testing performed at the procurement documents.
place of installation of the crane system.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR I RBG-46426 Page 40 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section The crane system should be static load The FBCHC was load-tested both NUREG- tested at 125% of the MCL. The tests indoors (as part of initial 0554 should include all positions generating acceptance) and outdoors (as Section 8.2 maximum strain in the bridge and aretofapost-modification testing of (Itemn 1)2 trolley structures and other positions as thet ou otdoor at ifcranstructue)tn recommended by the designer and the the rane load.
manufacturer. 1.25 times the rated load.
After satisfactory completion of the 125% static test and adjustments required as a result of the test, the crane handling system should be given full performance tests with 100% of the NUREG- MCL for all speeds and motions for 0554 which the system is designed. This The FBCHC was given a loaded Section 8.2 should include verifying all limiting and running test of all motions at 1.25 (Item 2) safety control devices. The features times its rated capacity.
provided for manual lowering of the load and manual movement of the bridge and trolley during an emergency should be tested with the MCL attached to demonstrate the ability to function as intended.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page41 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document Guidance Evaluation Notes and Section When equipped with an energy-controlling device between the load and head blocks, the complete hoisting machinery should be allowed to two-block during the hoisting test (load block limit and safety devices are bypassed). This test, conducted at Per NUREG-0612, Appendix C, Page NUREG- slow speed without load, should C-3, item (8), the FBCHC main hoist 0554 provide assurance of the integrity of A two-blocking test was not includes two travel limit switches, Section 8.3 the design, the equipment, the performed on the FBCHC. each of independent design, used in (Item 1) controls, and the overload protection series, and a load limiting device.
devices. The test should demonstrate that the maximum torque that can be developed by the driving system, including the inertia of the rotating parts at the overtorque condition, will be absorbed or controlled during two-blocking or load hang-up.
The complete hoisting machinery A load hang-up test was not should be tested for the ability to performed on the FBCHC. Each sustain a load hang-up condition by a hoist is provided with an overload The FBCHC does not have the NUREG- test in which the load-block-attaching cutoff that senses an overload on interlock circuitry suggested by 0554 points are secured to a fixed anchor or the hoist and stops the hoisting NUREG-0612, Appendix C, page C-(Itemn2)3 manufacturere moay. suges caddiioal motion, but allows safe lowering 4, item (9), Cask loading procedures (Item 2) manuactier load. sgest a nane of the load to the floor. The load will prohibit simultaneous FBCHC or substitute test procedures that will limiting device is adjustable up to trolley and hoisting movement.
ensure the proper functioning of 130% of rated load.
protective overload devices.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 42 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE Document and Section Guidance Evaluation Notes Operational tests of crane systems should be performed to verify the A functional test of the FBCHC NUREG- proper functioning of limit switches and was performed to verify its 0554 other safety devices and the ability to complete range of travel and Section 8.4 perform as designed. However, special functionality with and without a arrangements may have to be made to load on the main and auxiliary test overload and overspeed sensing hooks.
devices.
Essentially, the MCL rating of the crane should be established as the rated load capacity, and the design The rated load for each hoist is rating for the degradable portion of the clearlyedaroad on each the handling system should be identified to aly marked on the crane. The NUREG- obtain the margin available for the m aximum critical load is the 0554 maintenance program. The MCL design rated load (125 tons). The Section 8.5 should be plainly marked on each side crane receives periodic of the crane for each hoisting unit. It is preventive maintenance and recommended that the critical-load- inspection to address degradation handling cranes should be continuously maintained above MCL capacity.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 THE RBS FUEL BUILDING CASK HANDLING CRANE Page 43 of 44 Document Evaluation Notes and Section Guidance The crane designer and crane manufacturer should provide a manual of information and procedures for use in checking, testing, and operating the crane. The manual should also NUREG- describe a preventive maintenance with the FBCHC. The 0554 program based on the approved test recommendations in this manual Section 9 results and information obtained during have been included in the site (Item 1) the testing. It should include such recommendaintenance items as servicing, repair replacement oprtn n aneac requirements, visual examinations, procedures for the crane.
inspections, checking, measurements, problem diagnosis, nondestructive examination, crane performance testing, and special instructions.
The operating requirements for all travel movements (vertical and horizontal movements or rotation, NUREG- singly or in combination) incorporated with the FBCHCmThe 0554 intedesign frpmaetlnt recommendations in this manual Section 9 cranes should be clearly defined in the have been included in the site (Item 2) operating manual for hoisting and for oprtnadmitenc trolley and bridge travel. The designer operating and maintenance should establish the MCL rating and procedures for the crane.
the margin for degradation of wear-susceptible component parts.
Attachment to NUREG-0612 AND NUREG-0554 COMPARISON MATRIX FOR RBG-46426 Page 44 of 44 THE RBS FUEL BUILDING CASK HANDLING CRANE and Section Guidance Evaluation Notes While it is a non-safety-related A quality assurance program should be component, The FBCHC will be NUREG- established to the extent necessary to designated as "Quality Assurance 0554 include the recommendations of this Program Applicable" in the RBS Section 10 report for the design, fabrication, quality assurance program. All Item 1) installation, testing, and operation of modifications, maintenance, (Iemcrane handling systems for safe testing, and inspections will be handling of critical loads. performed as safety-related activities.
The FBCHC was a commercial-In addition to the quality assurance grade purchase made in the late-program established for site assembly, grade While10 in t e installation, and testing of the crane, Appendix B requirements and NUREG- applicable procurement documents R.G. 1.28 QA guidance did not 0554G should require the crane manufacturer apply, the procurement 04on 10 to provide a quality assurance program specification required the supplier m 2consistent with the pertinent provisions Sctin to have an inspection, testing, (Item 2) of Regulatory Guide 1.28, "Quality documentation program to Assurance Program Requirements ensure the crane met the (Design and Construction)," to the requirements of the specification.
extent necessary. In addition, certain key fabrication
- n. steps were witnessed or verified by the architect/engineer for RBS.
NUREG- The (quality assurance) program NUREG-0554 did not exist at the 0554 should address all the time the FBCHC was designed Section 10 recommendations in this NUREG. Also and fabricated. Crane operator (Item 3) included should be qualification qualifications are part of the RBS requirements for crane operators. training program.