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UL 2849-2020 pdf free download
UL 2849-2020 pdf free download.Electrical Systems for eBikes.
19.7 A positive temperature coefficient device shall comply with Manufacturing Deviation and Drift; Endurance; and Requirements for Controls Using Thermistors, in UL 60730-1/CSA C22.2 E60730-1. The positive temperature coefficient device shall be tested and determined to comply in the actual battery configuration and environment.
19.8 Fuses shall be acceptable for the current and voltage of the circuit they are protecting and shall comply with 119 and 19.10. Fuses shall be tested and determined to comply in the actual battery configuration and environment.
19.9 Fuses provided for protection of circuits or outputs shall comply with CSA C22.2 No.248.1IUL 248-1 and the applicable parts of the series. Fusehokiers used with these fuses shall comply with CSA C22.2 No. 4248.1/UL 4248-1 and the applicable parts of the series.
19.10 For user replaceable fuses, a fuse replacement marking in accordance with shall be located adjacent to each fuse or fuse holder, or on the fuse holder, or in another location provided that it is obvious to which fuse the marking applies. Where user replaceable fuses with special fusing characteristics such as time delay or breaking capacity are necessary, the type shall also be indicated. Information on proper fuse replacement of user replaceable fuses shall also be included in the instructions. See Section 4.1.
20 Motors and Motor Controllers
20.1 A traction motor used in a eBike shall not be hazardous under locked rotor and overload conditions. Compliance is determined by the tests of this standard unless previously evaluated as part of a motor and motor protector combination evaluation,
20.2 Motors shall be capable of carrying the maximum normal anticipated load without exceeding temperatures on insulation and windings as determined during the temperature test.
20.3 Motors located in hazardous voltage circuits shall comply with the requirements of UL 1004-1 and
CSA-C22.2 No. 100, Motors located in low voltage órcuits shall comply with either UL 1004-1 or CSAC22.2 No. 100 or the requirements of this Standard
20.4 Sensors and controls associated with the motor control, either as a stand-alone component or system, provided to perform a safety function shall comply with the applicable requirements in the appropriate controls standard in accordance with 2J For eBikes and EPACs provided with a startup assistance function, the control for providing startup assistance shall require a voluntary and continuous action by the user to allow startup assistance, such as the use of a dead man switch.
20.5 In addition to the testing associated with the control of the motors in this Standard, hazards associated with the motor control shall be included in the analysis required in Safety Circuits and Safety Analysis, Section .12.UL 2849-2020 pdf free download.
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