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最新完整英文版UL 2849：2020 Standard for Electrical Systems for eBikes-电动自行车安规标准， 本标准涵盖了由锂基可充电电池供电的电动自行车的电气系统。 电动自行车包括电动辅助循环（EPAC –踏板辅助）和非踏板辅助电动自行车。电气系统至少由驱动单元，电池，电池管理系统（BMS），互连导线和电源插座组成。 根据整个系统的应用和风险，还包括证明合规性所需的任何其他组件或系统。板外组件包括用于在充电过程中从eBike上卸下的电池充电的专用充电器，或用于在充电过程中。
UL 2849标准覆盖的产品为可充电锂电池供电的电动自行车，主要对电动自行车的电气系统进行安全性评估及测试，其中包含对电池管理系统（BMS）、控制器、电机以及软件功能安全进行全面系统的考核，同时对零部件（如：充电器、防火外壳、内部线束和接插端子等）提出严格的管控要求。
1 Scope
1.1 This Standard 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.