UL規格 2272, 2nd Edition, 2024: Electrical Systems for Personal E-Mobility Devices
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Description
Scope
1.1 These requirements cover the electrical drive train system including the battery system, other circuitry and electrical components for electric powered scooters and other devices to be referred to as personal e-mobility devices as defined in this standard.
1.2 This standard is intended for evaluation of the safety of the electrical drive train system and battery and charger combination for energy and electrical shock hazards and does not evaluate the performance or reliability of these devices. In addition, it does not evaluate the physical hazards that may be associated with the use of personal e-mobility devices.
Summary of Topics
This new Second Edition ANSI/CAN/UL 2272 dated April 19, 2024 includes the following new and/or revised requirements:
– Updated battery pack compartment requirements; 9.2.3
– Added more specific evaluation requirements of gaskets and seals; 5.2, 7.7,
– Clarified flammability requirements for nonmetallic materials; 7.8 – 7.13
– Updated charger requirements; 11.2, Section 36
– Added external output terminal marking requirement; 5.2, Markings, 47.5, Annex B
– Updated temperature requirements; 6.23, 6.24, 27.3, 27.5
– Added reference to UL 2054, UL 62133-1 / CSA C22.2 No. 62133-1, UL 62133-2 and UL 62133-2 / CSA C22.2 No. 62133-2 for rechargeable batteries providing power other than drivetrain unit; 5.2, 17.9, 17.10
– Revised post-test cycle for non-operational condition; 22.1
– Revised the Vibration Test; 5.2, 34.1 – 34.3
– Revised the Partial Immersion test to allow the DUT to drain after the test; 44.2.2
– Clarified the definition in 6.25 to exclude motorized wheelchairs including mobility scooters for medical purposes.
– Updated the Component Section and Annex A; Section 2
– Updated the component cell requirements; 5.2, 17.1, 17.2, 17.4, 17.7, 17.8
– Added UL 62368-1 as the alternative electrical spacing requirement; 14.2, 31.4
– Aligned the dielectric strength test condition; 30.2