1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJuly 18, 20141UL 2849Outline of Investigation for Cycles Electrically Power Assisted Cycles EPAC BicyclesIssue Number: 2July 18, 2014Summary of TopicsThis is the second issue of the Outline of In
2、vestigation for Cycles Electrically Power Assisted Cycles EPAC Bicycles, UL 2849. This Outlineadopts EN 15194, the Standard for Cycles Electrically Power AssistedCycles EPAC Bicycles, by reference, and only includes NationalDifferences.The first issue of this Outline was titled Pedal Electric Cycles
3、 (Pedelecs).The title has changed in the second issue in order to align with the ENstandard.ULs Outlines of Investigation are copyrighted by UL. Neither a printed norelectronic copy of an Outline of Investigation should be altered in any way. All ofULs Outlines of Investigation and all copyrights, o
4、wnerships, and rights regardingthose Outlines of Investigation shall remain the sole and exclusive property of UL.COPYRIGHT 2014 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJULY 18, 2014UL 28492No Text on This
5、 PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULCONTENTSNATIONAL DIFFERENCES .41 Scope .52 Normative references 53 Terms and definitions 54 Requirements 54.2.3 Electric cables and connections 54.2.5 Electro Magnetic Compatibility 65 Marki
6、ng, Labeling .7JULY 18, 2014 UL 2849 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULNATIONAL DIFFERENCESThis UL Outline provides national differences that are based on CEN Publication EN 15194: 2009 edition,Cycles - Electrically power assist
7、ed cycles EPAC Bicycles.GENERALThere are five types of National Differences as noted below. The difference type is noted on the first lineof the National Difference in the standard. The standard may not include all types of these NationalDifferences.DR These are National Differences based on the nat
8、ional regulatory requirementsD1 These are National Differences which are based on the basic safety principles and requirements,elimination of which would compromise safety for consumers for users of products.D2 These are National Differences from CEN requirements based on existing safety practices.
9、Theserequirements reflect national safety practices, where empirical substantiation (for the CEN or nationalrequirement) is not available or the text has not been included in the CEN standard.DC These are National Differences based on the component standards and will not be deleted untila particular
10、 component standard is harmonized with the CEN component standard.DE These are National Differences based on editorial comments or corrections.Each national difference contains a description of what the national difference entails. Typically one of thefollowing words is used to explain how the text
11、of the national difference is to be applied to the base CENtext:Addition / Add An addition entails adding a complete new numbered clause, subclause,table, figure, or annex. Addition is not meant to include adding select words to the base CENtext.Modification / Modify A modification is an altering of
12、 the existing base CEN text such as theaddition, replacement or deletion of certain words or the replacement of an entire clause,subclause, table, figure, or annex or the base CEN text.Deletion / Delete A deletion entails complete deletion of an entire numbered clause,subclause, table, figure, or an
13、nex without any replacement text.JULY 18, 2014UL 28494UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL1 Scope1DV.1 D1 Modification of the scope as follows:In all cases, change 230V input to “240V input or less”2 Normative references2DV.1 D1 Ad
14、dition of the following standards:1) UL 62, Standard for Flexible Cords and Cable;2) UL 498, Standard for Attachment Plugs and Receptacles or UL 60320-1,Standard for Appliance Couplers for Household and Similar General Purposes Part 1: General Requirements;3) UL 758, Standard for Appliance Wiring Ma
15、terial;4) UL 817, Standard for Cord Sets and Power-Supply Cords; and5) UL 1977, Standard for Component Connectors for Use in Data, Signal, Controland Power Applications.3 Terms and definitions3.25DV D1 Addition of the following definition:Limited Power Circuit A circuit wherein the power is limited
16、from a source whose opencircuit voltage is less than or equal to 60 Vdc and whose maximum current and powerafter 60 s of operation comply with the values outlined in Tables 4.3.1DV and 4.3.2DV.4 Requirements4.2.3 Electric cables and connections4.2.3.1.1DV DC Addition of the following clause:Wires, c
17、ables, and connectors, in other than limited power circuits shall be suitable for thevoltage and temperature. Accessible wires and cables in other than limited power circuitsshall be Type SW, SOW, STW, STOW, SJOW, SJTW, or SJTOW or provided with equivalentprotection.Limited power circuits (including
18、 wire, cables and connectors) need not be additionallyevaluated unless relied upon to comply with 4.2.1, 4.2.2, 4.2.4, 4.2.6 or 4.2.7.JULY 18, 2014 UL 2849 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM UL4.2.5 Electro Magnetic Compatibility4.
19、2.5DV D1 Deletion of the requirements for EMC testing for pedelecs in US.4.2.5 Deleted4.3DV D1 Addition: Limited Power Circuits Test4.3.1DV When operating at maximum current and power, a limited power source shallcomply with one of the following:a) The output is inherently limited in compliance with
20、 Table 4.3.1DV;b) An impedance limited output in compliance with Table 4.3.1DV. If a positivetemperature coefficient device is used, it is to comply with ManufacturingDeviation and Drift, Clause 15, Endurance, Clause 17, and Requirements forControls Using Thermistors, Annex J, in the Standard for Au
21、tomatic ElectricalControls for Household and Similar Use, Part 1: General Requirements, UL60730-1;c) A regulating network limits the output in compliance with Table 4.3.1DV bothunder normal operating conditions and after any single fault conditions in theregulating network (open circuit or short cir
22、cuit), excluding resistors;d) A non-arcing over-current protective device is used and the output is limitedin compliance with Table 4.3.2DV.Table 4.3.1DVLimits for inherently limited power sourcesOutput voltage dcaOutput currentb,dApparent powerc,d(Voc) (Isc) (S)Vdc A VA=20 =8.0 =5 Voc20 Voc = 30 =8
23、.0 =10030 Voc = 60 =150/Voc =100aVoc: Output voltage measured with all load circuits disconnected. Voltages are for ripple free dc.bIsc: Maximum output current with any non-capacitive load, including short circuit, measured 60 s after application ofload.cS (VA): Maximum output VA with any non-capaci
24、tive load measured 60 s after application of load.dMeasurement of Isc and S are made 5 s after application of the load if protection is by an electronic circuit or apositive temperature coefficient device, and 60 s in other cases.JULY 18, 2014UL 28496UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHE
25、R REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULTable 4.3.2DVLimits for power sources not inherently limited (overcurrent protection required)Output voltageaOutput currentbApparent powercCurrent rating ofovercurrent protectiond(Voc) (Isc) (S)VdcAVAA=20 =1000/Voc =250 =5.020 Voc = 30 =1000/Vo
26、c =250 =100/Voc30 Voc =60 =1000/Voc =250 =100/VocaVoc: Output voltage measured with all load circuits disconnected. Voltages are for ripple free dc.bIsc: Maximum output current with any non-capacitive load, including short circuit, measured 60 s after application ofload. Current limiting impedances
27、in the equipment remain in the circuit during measurement, but overcurrentprotection means are bypassed.cS (VA): Maximum output VA with any non-capacitive load measured 60 s after application of load. Current limitingimpedances in the equipment remain in the circuit during measurement, but overcurre
28、nt protection means arebypassed.NOTE The reason for making measurements with overcurrent protection means bypassed is to determine the amountof energy that is available to cause possible overheating during the operating time of the overcurrent protectionmeans. If the overcurrent protection means is
29、a discreet arcing device, further evaluation with respect to its isolationfrom potentially flammable gas vapors is to be made.dThe current ratings of the overcurrent protection means are based on fuses and circuit breakers that break thecircuit within 120 s with a current equal to 210 percent of the
30、 current rating specified in the table.5 Marking, Labeling5DV D1 Modification of the markings to include option to mark in mph.-XXmph1)JULY 18, 2014 UL 2849 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION ORDISTRIBUTION WITHOUT PERMISSION FROM ULJULY 18, 2014UL 28498No Text on This Page
