UL 1340:2021 pdf download.STANDARD FOR SAFETY-Hoists.
1.1 These requirements cover hoists of the overhead type intended for material lifting service using either chain, wire rope, or fibre kernmantle rope. They are intended to be suspended from a fixed member and may include trolleys for mobility.
1.2 This standard covers electrically powered hoists rated 1000 volts or less to be employed in non hazardous environmental locations in accordance with the National Electrical Code, NFPA 70.
1.3 This standard covers pneumatically powered hoists.
1.4 These requirements do not cover:
a) Manual and power-operated type portable hoists intended for use with scaffolds suspended by wire ropes:
b) Hoists for transporting people;
c) Manual operated chain hoists;
d) The trolley as a stand-alone component; or
e) The fixed member that suspends the hoist.
2 General
2.1 Components
2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply with the requirements for that component. See Appendix A for a list of standards covering components used in the products covered by this standard.
2.1.2 A component is not required to comply with a specific requirement that:
a) Involves a feature or characteristic not required in the application of the component in the product covered by this standard, or
b) Is superseded by a requirement in this standard.
2.1.3 A component shall be used in accordance with its rating established for the intended conditions of use.
2.1.4 Specific components are incomplete in constwction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specified limits, and shall be used only under those specific conditions.
2.2 Units of measurement
2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory or approximate information.
2.2.2 Unless otherwise indicated, all voltage and current values mentioned in this standard are rootmean-square (rms).
2.3 Undated references
2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shall be interpreted as referring to the latest edition of that code or standard.
3 Glossary
3.1 For the purpose of this standard the following definitions apply.
3.2 BONDED (BONDING) — The permanent joining of metallic parts to form an electrically conductive
path that provides electrical continuity and the capacity to conduct any current likely to be imposed without
a risk of electric shock, fire, or injury to persons.
3.3 BONDING JUMPER — A conductor, including a strap or similar part, that is used to provide the required electrical conductivity between metal parts required to be electrically connected.
3.4 CIRCUITS, ELECTRICAL —
a) High-Voltage — A circuit with a potential of not more than 1000 volts having circuit characteristics greater than those of a low-voltage power-limited circuit.
b) Low-Voltage — A circuit with a potential of not more than 30 volts AC rms, 42.4 volts DC or AC peak, and supplied by:
1) A primary battery;
2) An NEC Class 2 transformer; or
3) A combination of transformer and fixed impedance that, as a unit, complies with all of the performance requirements for a Class 2 transformer.UL 1340 pdf download.