CAN UL 2849:2020 pdf download.STANDARD FOR SAFETY Electrical Systems for eBikes.
CAN UL 2849 covers the electrical system of eBikes powered by a lithium-based, rechargeable battery. EBikes include both Electrically Power Assisted Cycle (EPAC — pedal assist) and non-pedal assist eBikes.
1.2 Electrical systems as referenced in 1.1, may include onboard components and off board components of eBikes. As a minimum, the electrical system consists of the drive unit, battery, battery management system (BMS), interconnecting wiring, and power inlet. Any additional components or systems required to demonstrate compliance are included based on the overall system application and risk.
1.3 Off board components include dedicated chargers for charging batteries that are removed from the eBike during charging or dedicated chargers for charging batteries that are in place on the eBike during charging.
1.4 This Standard does not cover the mechanical structure of the eBike unless specified otherwise.
2 Components
2.1 A critical safety component of a product covered by this Standard shall comply with the requirements for that component.
2.2 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b) Is superseded by a requirement in this Standard.
2.3 A component shall be used in accordance with its rating established for the intended conditions of use.
2.4 Specific components are incomplete in construction 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.
3 Units of Measurement
3.1 The values given in SI (metric) units shall be normative. Any other values given shall be for information purposes only.
4 Undated References
4.1 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.
5 Definitions
5.1 For the purpose of this Standard, the following definitions apply.
5.2 BATTERY MANAGEMENT SYSTEM (BMS) — The electrical, electronic and software monitoring and control system of a battery that is often relied upon to maintain the battery and its component cells within their specified operating region for charge and discharge, and may be source of memory of the battery operation throughout its life.
5.3 CHARGER — A device that converts grid power to DC power for charging the battery.
5.4 eBIKE — A two or three wheeled electrical/mechanical device provided with functional pedals that includes one or more electric motors to either assist the rider when pedaling (EPAC versions) or provide motive power to the wheels when the rider is not pedaling.
5.5 ENCLOSURE — That portion of a unit that reduces the accessibility of a part that involves a risk of fire, electric shock or injury to persons, or reduces the risk of propagation of flame, sparks, and molten metal initiated by an electrical disturbance occurring within.CAN UL 2849 pdf download.