ASME HST 4 2021

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ASME HST-4 – 2021 Performance Standard for Overhead Electric Wire Rope Hoists

Published By	Publication Date	Number of Pages
ASME	2021

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Description

This Standard establishes performance requirements for electric wire rope hoists for vertical lifting service involving material handling of freely suspended (unguided) loads using wire rope with one of the following types of suspension: (1) lug (2) hook (3) trolley (4) base or deck mounted (does not include base-mounted winches of the type covered by ASME B30.7) (5) wall or ceiling mounted (does not include base-mounted winches of the type covered by ASME B30.7) This Standard is applicable to hoists manufactured after the date on which this Standard is issued. This Standard is not applicable to (1) damaged or malfunctioning hoists (2) hoists that have been misused or abused (3) hoists that have been altered without authorization of the manufacturer or a qualified person (4) hoists used for the purpose of lifting or lowering people (5) hoists used for the purpose of drawing both the load and the hoist up or down the hoist’s own wire rope (6) hoists used for marine and other applications as required by the U.S. Department of Defense (DOD) unless Nonmandatory Appendix A is invoked The requirements of this Standard shall be applied together with the requirements of ASME B30.16. Please also refer to ASME B30.16 for requirements pertaining to marking, construction, and installation; inspection, testing, and maintenance; and operation.

PDF Catalog

PDF Pages	PDF Title
4	CONTENTS
6	FOREWORD
7	ASME HST COMMITTEE ROSTER
8	CORRESPONDENCE WITH THE HST COMMITTEE
10	Chapter 4-0 Scope, Definitions, References, and Appendices SECTION 4-0.1: SCOPE SECTION 4-0.2: DEFINITIONS
13	Figures Figure 4-0.2-1 Hoist Mounting Headroom, Lift, and Reach
14	SECTION 4-0.3: REFERENCES SECTION 4-0.4: APPENDICES Figure 4-0.2-2 Single and Double Reeving
16	Chapter 4-1 Performance SECTION 4-1.1: GENERAL SECTION 4-1.2: HOIST DUTY SERVICE CLASSIFICATION 4-1.2.1 General Considerations 4-1.2.2 Hazardous Locations 4-1.2.3 Duty Classification
17	SECTION 4-1.3: APPLICATION ANALYSIS 4-1.3.1 General 4-1.3.2 Fundamental Application Analysis
18	Tables Table 4-1.2.3-1 Hoist Duty Service Classification
19	4-1.3.3 Detailed Application Analysis SECTION 4-1.4: SPECIFICATION OF LIFT, HEADROOM, AND REACH 4-1.4.1 Lift 4-1.4.2 Headroom 4-1.4.3 Reach SECTION 4-1.5: SPEEDS: HOIST AND TROLLEY SECTION 4-1.6: TYPES OF TROLLEYS 4-1.6.1 Plain Type 4-1.6.2 Hand-Chain Operated
20	4-1.6.3 Motor Operated 4-1.6.4 Trolley Wheels Table 4-1.5-1 Typical Hoist and Motorized Trolley Speeds
21	Chapter 4-2 Mechanical SECTION 4-2.1: REEVING 4-2.1.1 Single Reeving 4-2.1.2 Double Reeving SECTION 4-2.2: BEARINGS SECTION 4-2.3: OVERLOAD LIMITING DEVICE
22	Chapter 4-3 Electrical SECTION 4-3.1: GENERAL 4-3.1.1 Hazardous Locations 4-3.1.2 Fungus Protection SECTION 4-3.2: MOTORS Table 4-3.2-1 Typical Rated Motor Voltages
23	SECTION 4-3.3: CONTROLLERS 4-3.3.1 Types of Control 4-3.3.2 Contactors 4-3.3.3 Pendant Control 4-3.3.4 Pull-Cord Control SECTION 4-3.4: CONTROL ENCLOSURES
24	SECTION 4-3.5: RESISTORS SECTION 4-3.6: CURRENT CONDUCTOR SYSTEMS
25	Chapter 4-4 Typical Electric Wire Rope Hoist and Trolley Inquiry Data Form SECTION 4-4.1: INQUIRY DATA FORM
26	Form FORM 4-4.1-1 Typical Electric Wire Rope Hoist and Trolley Inquiry Data Form
27	NONMANDATORY APPENDIX A PERFORMANCE REQUIREMENTS FOR ELECTRIC WIRE ROPE HOISTS USED IN MARINE AND OTHER APPLICATIONS AS REQUIRED BY THE U.S. DEPARTMENT OF DEFENSE (DOD) A-1 GENERAL
28	A-2 PERFORMANCE REQUIREMENTS
29	Table A-3.2-1 Hook Throat Openings A-3 MECHANICAL REQUIREMENTS
31	A-4 ELECTRICAL A-5 TESTING, MARKING, AND DATA
32	Table A-4.2.5-1 Electromagnetic Environment
33	A-6 TYPICAL HOIST INQUIRY DATA
34	NONMANDATORY APPENDIX B EXAMPLES OF DETAILED APPLICATION ANALYSIS B-1 TYPICAL EXAMPLES OF HOIST CLASS SELECTION
35	Table B-2-1 Example of Detailed Analysis Worksheet B-2 DETAILED ANALYSIS WORKSHEET
37	NONMANDATORY APPENDIX C MECHANICAL SPARK RESISTANCE GUIDANCE FOR APPLICATIONS IN HAZARDOUS (POTENTIALLY EXPLOSIVE) LOCATIONS C-1 GENERAL
38	C-2 USE OF REFERENCED DOCUMENTS C-3 MECHANICAL SPARK RESISTANCE
41	C-4 EXCESSIVE SURFACE TEMPERATURE C-5 HOIST INSPECTION CONSIDERATIONS