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ASME B30.20-2018 Below-the-Hook Lifting Devices
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Below-the-Hook Lifting Devices
Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings
AN A MERICAN NA TIONAL S T AND ARD
(Revision of ASME B30.20-2013)
(Revision of ASME B30.20-2013)
AN AMERICAN NATIONAL STANDARD
Two Park Avenue • New York, NY • 10016 USA
Date of Issuance: July 25, 2018
The next edition of this Standard is scheduled for publication in 2023. This Standard will become effective 1 year after the Date of Issuance.
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The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990
Copyright © 2018 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved Printed in U.S.A.
CONTENTS
Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . v
Committee Roster vii
B30 Standard Introduction ix
Summary of Changes xii
Chapter 20-0 | Scope, Definitions, Personnel Competence, Translations, and References . . . . . . . . . . . . . . | 1 |
Section 20-0.1 | Scope of ASME B30.20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
Section 20-0.2 | Definitions — General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
Section 20-0.3 | Definitions for Chapter 20-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 1 |
Section 20-0.4 | Definitions for Chapter 20-2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 2 |
Section 20-0.5 | Definitions for Chapter 20-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 2 |
Section 20-0.6 | Definitions for Chapter 20-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
Section 20-0.7 | Definitions for Chapter 20-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
Section 20-0.8 | Definitions for Chapter 20-6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 3 |
Section 20-0.9 | Personnel Competence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 4 |
Section 20-0.10 | Translations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 4 |
Section 20-0.11 | References to Other Codes and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 4 |
Chapter 20-1 | Structural and Mechanical Lifting Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 5 |
Section 20-1.1 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 5 |
Section 20-1.2 | Marking, Construction, and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 5 |
Section 20-1.3 | Inspection, Testing, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 9 |
Section 20-1.4 | Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 11 |
Section 20-1.5 | Instruction Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 13 |
Chapter 20-2 | Vacuum Lifting Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 14 |
Section 20-2.1 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 14 |
Section 20-2.2 | Marking, Construction, and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 14 |
Section 20-2.3 | Inspection, Testing, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 16 |
Section 20-2.4 | Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 18 |
Section 20-2.5 | Instruction Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 20 |
Chapter 20-3 | Close Proximity Operated Lifting Magnets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 21 |
Section 20-3.1 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 21 |
Section 20-3.2 | Marking, Construction, and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 21 |
Section 20-3.3 | Inspection, Testing, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 23 |
Section 20-3.4 | Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 25 |
Section 20-3.5 | Instruction Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 28 |
Chapter 20-4 | Remotely Operated Lifting Magnets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 29 |
Section 20-4.1 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 29 |
Section 20-4.2 | Marking, Construction, and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 29 |
Section 20-4.3 | Inspection, Testing, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 30 |
Section 20-4.4 | Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 33 |
Section 20-4.5 | Instruction Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 35 |
Chapter 20-5 | Scrap and Material-Handling Grapples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
Section 20-5.1 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
Section 20-5.2 | Marking, Construction, and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
Section 20-5.3 | Inspection, Testing, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 36 |
Section 20-5.4 | Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 39 |
Section 20-5.5 | Instruction Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 41 |
Chapter 20-6 | Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 42 |
Section 20-6.1 | Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 42 |
Section 20-6.2 | Marking, Construction, and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 42 |
Section 20-6.3 | Inspection, Testing, and Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 43 |
Section 20-6.4 | Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 49 |
Section 20-6.5 | Instruction Manuals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 51 |
Figures 20-1.1-1 | Structural Lifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 6 |
20-1.1-2 | Mechanical Lifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 7 |
20-1.1-3 | Mechanical Supporting Lifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 8 |
20-2.1-1 | Vacuum Lifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 15 |
20-3.1-1 | Close Proximity Operated Magnetic Lifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 22 |
20-4.1-1 | Remotely Operated Magnetic Lifters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 29 |
20-5.1-1 | Scrap and Material-Handling Grapples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 37 |
20-6.0-1 | Load-Supporting Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 43 |
20-6.0-2 | Friction-Type Pressure-Gripping Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 44 |
20-6.0-3 | Indentation-Type Pressure-Gripping Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 46 |
20-6.0-4 | Anchoring and Positioning Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 47 |
20-6.0-5 | Hybrid Clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . | 47 |
Table 20-1.3.3-1 | Minimum Inspection for Below-the-Hook Lifting Devices . . . . . . . . . . . . . . . . . . . . . . . . . | 10 |
FOREWORD
This American National Standard, Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks, Jacks, and Slings, has been developed under the procedures accredited by the American National Standards Institute (ANSI). This Standard had its beginning in December 1916 when an eight-page Code of Safety Standards for Cranes, prepared by an ASME Committee on the Protection of Industrial Workers, was presented at the annual meeting of the ASME.
Meetings and discussions regarding safety on cranes, derricks, and hoists were held from 1920 to 1925, involving the ASME Safety Code Correlating Committee, the Association of Iron and Steel Electrical Engineers, the American Museum of Safety, the American Engineering Standards Committee (AESC) (later changed to American Standards Association (ASA), then to the United States of America Standards Institute (USASI), and finally to ANSI), Department of Labor — State of New Jersey, Department of Labor and Industry — State of Pennsylvania, and the Locomotive Crane Manufacturers Association. On June 11, 1925, AESC approved the ASME Safety Code Correlating Committee’s recommendation and authorized the project with the U.S. Department of the Navy, Bureau of Yards and Docks, and ASME as sponsors.
In March 1926, invitations were issued to 50 organizations to appoint representatives to a Sectional Committee. The call for organization of this Sectional Committee was sent out October 2, 1926, and the committee organized November 4, 1926, with 57 members representing 29 national organizations. Commencing June 1, 1927, and using the eight-page code published by ASME in 1916 as a basis, the Sectional Committee developed the Safety Code for Cranes, Derricks, and Hoists. The early drafts of this safety code included requirements for Jacks, but, due to inputs and comments on those drafts, the Sectional Committee decided in 1938 to make the requirements for Jacks a separate code. In January 1943, ASA B30.2- 1943 was published addressing a multitude of equipment types and in August 1943, ASA B30.1-1943 was published just addressing Jacks. Both documents were reaffirmed in 1952 and widely accepted as safety standards.
Due to changes in design, advancement in techniques, and general interest of labor and industry in safety, the Sectional Committee, under the joint sponsorship of ASME and the Bureau of Yards and Docks (now the Naval Facilities Engineering Command) was reorganized on January 31, 1962, with 39 members representing 27 national organizations. The new committee changed the format of ASA B30.2-1943 so that the multitude of equipment types it addressed could be published in separate volumes that could completely cover the construction, installation, inspection, testing, mainte- nance, and operation of each type of equipment that was included in the scope of ASA B30.2. This format change resulted in the initial publication of B30.3, B30.5, B30.6, B30.11 and B30.16 being designated as Revisions of B30.2 with the remainder of the B30 volumes being published as totally new volumes. ASA changed its name to USASI in 1966 and to ANSI in 1969, which resulted in B30 volumes from 1943 to 1968 being designated as either ASA B30, USAS B30, or ANSI B30, depending on their date of publication.
In 1982, the Committee was reorganized as an Accredited Organization Committee, operating under procedures developed by ASME and accredited by ANSI. This Standard presents a coordinated set of rules that may serve as a guide to government and other regulatory bodies and municipal authorities responsible for the guarding and inspection of the equipment falling within its scope. The suggestions leading to accident prevention are given both as mandatory and advisory provisions; compliance with both types may be required by employers of their employees.
In case of practical difficulties, new developments, or unnecessary hardship, the administrative or regulatory authority may grant variances from the literal requirements or permit the use of other devices or methods, but only when it is clearly evident that an equivalent degree of protection is thereby secured. To secure uniform application and interpretation of this Standard, administrative or regulatory authorities are urged to consult the B30 Committee, in accordance with the format described in Section IX of the Introduction, before rendering decisions on disputed points.
Safety codes and standards are intended to enhance public safety. Revisions result from committee consideration of factors such as technological advances, new data and changing environmental and industry needs. Revisions do not imply that previous editions were inadequate.
B30.20, Below-the-Hook Lifting Devices, was first published in 1985; new editions were published in 1993, 1999, 2003, and 2006. In the 2010 edition, maintenance was made mandatory, definitions were revised and other changes were made to improve clarity. The 2013 revision added requirements for personnel competence, operating controls marking and inspection, translation of non-English documentation into English, and updates to the definition of Duty Cycle to align with revisions made to BTH-1. In addition, responsibilities for Owners and Operators are defined for each piece of equipment. This 2018 edition adds Chapter 6 on Clamps, revisions to product safety labeling, addition of rated load marking re- quirements for remotely operated magnets, expanded and clarified magnet testing requirements, revision to the
permanent magnet rating factor, revisions to align with recent changes to BTH-1, and updates to the operating practices sections to align with revisions to the standards applicable to the equipment used with BTH lifters.
This Volume of the Standard, which was approved by the B30 Committee and by ASME, was approved by ANSI and designated as an American National Standard on April 24, 2018.
Safety Standard for Cableways, Cranes, Derricks, Hoists, Hooks,
Jacks, and Slings
(The following is the roster of the Committee at the time of approval of this Standard.)
STANDARDS COMMITTEE OFFICERS
B. D. Closson, Chair
T. L. Blanton, Vice Chair
K. M. Hyam, Secretary
STANDARDS COMMITTEE PERSONNEL
N. E. Andrew, LTS Cranes Mechanical
T. L. Blanton, NACB Group, Inc.
P. A. Boeckman, The Crosby Group, Inc.
P. W. Boyd, The Boeing Co.
B. D. Closson, Craft Forensic Services
J. A. Danielson, The Boeing Co.
D. R. Decker, Becket, LLC
L. D. Demark, Equipment Training Solutions, LLC
D. W. Eckstein, Eckstein & Associates, Inc.
R. J. Edwards, NBIS
A. J. Egging, National Oilwell Varco
E. D. Fidler, Grove U.S., LLC
J. A. Gilbert, Associated Wire Rope Fabricators
J. L. Gordon, Acco Material Handling Solutions, Inc.
N. C. Hargreaves, Consultant
G. B. Hetherston, Consultant
K. M. Hyam, The American Society of Mechanical Engineers
M. M. Jaxtheimer, Navy Crane Center
P. R. Juhren, Morrow Equipment Co., LLC
R. M. Kohner, Landmark Engineering Services
A. J. Luci, Jr., LuMark Consulting, LLP
E. K. Marburg, Columbus McKinnon Corp.
D. Means, Means Engineering & Consulting
W. Mills, Liberty Mutual Insurance
D. L. Morgan, Critical Lift Consultants, LLC
W. E. Osborn, Ingersoll Rand
R. M. Parnell, Industrial Training International, Inc.
J. T. Perkins, First Solar Electric
B. A. Pickett, Systems Engineering and Forensic Services
J. A. Pilgrim, Manitowoc Cranes
S. K. Rammelsberg, CB&I
J. E. Richardson, U.S. Department of the Navy
D. W. Ritchie, Dave Ritchie Consultant, LLC
J. W. Rowland III, Consultant
J. C. Ryan, Boh Brothers Construction Co.
D. W. Smith, STI Group
W. J. Smith, Jr., NBIS
R. S. Stemp, Lampson International, LLC
R. G. Strain, Advanced Crane Technologies, LLC
J. Sturm, Sturm Corp.
P. D. Sweeney, Riverside Engineering, LLC
E. P. Vliet, Turner Industries Group, LLC
J. D. Wiethorn, Haag Engineering Co.
R. C. Wild, CJ Drilling, Inc.
D. N. Wolff, National Crane/Manitowoc Cranes
S. D. Wood, Terex Corp.
B. B. Bacon, Alternate, Tennessee Valley Authority
L. J. Bolen, Alternate, Consultant
G. J. Brent, Alternate, NCCCO
J. R. Burkey, Alternate, Columbus McKinnon Corp.
B. M. Casey, Alternate, General Dynamics Electric Boat
W. C. Dickinson, Jr., Alternate, Crane Industry Services, LLC
J. Dudley, Alternate, The Walsh Group
D. Duerr, Alternate, 2DM Associates, Inc.
M. Eggenberger, Alternate, Berry Contracting, Inc.
S. R. Fletcher, Alternate, Cowles, Murphy, Glover & Associates
M. Gardiner, Alternate, Haag Engineering Co.
D. M. Gordon, Alternate, Liberty Mutual Insurance
S. R. Gridley, Alternate, Navy Crane Center
D. A. Henninger, Alternate, Bridon America
D. F. Jordan, Alternate, American International Crane Bureau
K. Kennedy, Alternate, Navy Crane Center
J. Lindsay, Alternate, Link-Belt Construction Equipment
E. E. Lutter, Alternate, The Crosby Group, Inc.
T. C. Mackey, Alternate, WRPS Hanford
G. D. Miller, Alternate, Manitowoc Cranes
D. A. Moore, Alternate, Unified Engineering
L. S. Olver, Alternate, Kolo Holdings, Inc.
J. M. Randall, Alternate, CB&I
A. R. Ruud, Alternate, Atkinson Construction
J. R. Schober, Alternate, American Bridge Co.
J. Schoppert, Alternate, NBIS
L. Shapiro, Alternate, Howard I. Shapiro & Associates
K. J. Shinn, Alternate, K. J. Shinn, Inc.
C. H. Smith, Alternate, Morrow Equipment Co., LLC
S. Snider, Alternate, Ingersoll Rand
R. Stanoch, Alternate, IPS Cranes
C. Warren, Alternate, Webber, LLC
M. P. Zerba, Alternate, Lampson International, LLC
HONORARY MEMBERS
J. W. Downs, Jr., Downs Crane and Hoist Co.
J. J. Franks, Consultant
C. W. Ireland, Consultant
J. M. Klibert, Lift-All Co., Inc.
R. W. Parry, Consultant
B30.20 SUBCOMMITTEE PERSONNEL
P. W. Boyd, Chair, The Boeing Co.
B. Baker, Young Corp.
G. A. Bond, Wood’s Powr-Grip Co., Inc.
D. Duerr, 2DM Associates, Inc.
J. D. Edmundson, Konecranes/P&H
T. Eicher, The Caldwell Group, Inc.