1、 Caution Marking & Instruction (警告标示及使用说明) Relative SPS Standard Instruction (相关标准简介)Scope (範圍) Indoor and outdoor use Class 2 power supplies and battery chargers for use on alternating current branch circuits with a maximum potential of 150 V to ground。连接于对地最大电压150 V的交流电源上之室内及户外用 Class 2电源适配器及充电器 P
2、ortable direct plug-in units provided with 15 A blade configurations for use on nominal 120 or 240 V branch circuits Cord and plugconnected units provided with a 15 A or 20 A attachment plug configuration(构造) Units permanently connected to the input supplyInput power does not exceed 660 W under any
3、possible condition of output loading (最大输入功率不超过 660W)Class 2 Definition (Class 2定义)Class 2 Voltage Limitation(Class 2电压限制 ) Voltage Type Indooruse units Outdooruse units Sinusoidal, ac 30 V, rms 30 V, rms (UL) Nonsinusoidal, ac 42.4 V, peak 42。4V, peak (UL)Pure dc 60 V (UL) 60 V (UL) Nonsinusoidal a
4、c or dc 42.4 V (CUL) 42.4 V (CUL) Note: For AC Systems If the product exceeds the 15 V rms and 21.2 V peak; and is not greater 30 V rms and 42。4 V peak; For DC Systems - If the product exceeds the 30 V for continuous dc The product shall be marked as below:US “Class 2 not wet,” “Class 3 wet”Canada “
5、Class 2 not wet,” “Class 1 wet”Max. O/P current for inherently limited units (先天限制的) (30。1)Circuit voltage (Vmax) a,b ac or dc VoltsMax。 nameplate ratingsMax. o/p current(I max)c, amperesVAAmperes0 20Over 20 to 30Over 30 to 60, dc only5。0 X V max1005.0100/Vmax8.08。150/Vmaxa V max : Maximum output vo
6、ltage regardless of load with rated input voltage applied.b Voltage ranges shown are for sinusoidal alternating current and continuous direct current. For nonsinusoidal alternating current, maximum voltage shall not be greater than 42.4 volts peak. For direct current interrupted at a rate of 10 200
7、hertz, maximum voltage shall not be greater than 24.8 volts。c I max is maximum output current regardless of load.The maximum output volt-amperes shall not be more than 100 volt-amperes (最大输出不得超过 100VA) O/P current and VA for not inherently limited units (非先天限制的) (Cl30.2)Circuit voltage (Vmax) a,b ac
8、 or dc VoltsMax. nameplate ratings(I max)c, amperesMax. o/p VA(VA max)d overcurrent protection rating, AV-A5.0 X Vmax1000/Vmax250e250a V max is the maximum output voltage regardless of load with rated input voltage applied.b Voltage ranges shown are for sinusoidal alternating current and continuous
9、direct current. For nonsinusoidal alternating current, maximum voltage shall be greater than 42.4 volts peak. For direct current interrupted at a rate of 10 200 hertz, maximum voltage shall not be greater than 24.8 volts。c I max is maximum ampere output regardless of load after operation as specifie
10、d in 30。2.1。d VA max is maximum volt-ampere output regardless of load after operation as specified in 30.2。1.e Maximum voltamperes is 350 if maximum circuit voltage is 15 or less.Construction (結構)Mechanical AssemblyDirect PlugIn (机构组立插墙式) (Cl7.11)Mechanical Assembly-Direct PlugIn (机构组立插墙式)(7。16)Dete
11、rmination of perimeter of units with rounded edgesA = 5。1 mm for UL (Marking for Mounting(固定件)Tab)A = 8.0 mm for CUL (No Mounting Tab)If a mounting tab be provided, the following conditions shall be met:a) Use on a or 15ampere, 125- 250-volt receptacle (NEMA 115R or 515R or 6-15 R);b) A screw No. 6
12、mounting screw (3。5 mm major diameter, 32 threads/inch) is provided and constructed to secure to a duplex (双方的) receptacle that has a center screw;c) For a unit without a grounding pin, the mounting tab is constructed to be mounted to both grounding and nongrounding receptacles; andd) Marked “CAUTIO
13、N” and the following or the equivalent:1) “Risk of Electric Shock Disconnect power to the receptacle before installing or removing the unit。 When removing receptacle cover screw, cover may fall across plug pins or receptacle may become displaced;”2) “Use only with duplex receptacle having center scr
14、ew;” and3) “Secure unit in place by receptacle cover screw”Metal Enclosure (金属外壳 )Indoor use: A sheet metal thickness not less than that in Table 8。1. The thickness of sheet metal other than steel or aluminum shall not be less that than in Table 8。1 for uncoated steel (8.4) Iron and steel parts shal
15、l be protected against corrosion (抗蚀)by galvanizing (镀锌), plating (电镀), enameling (上釉), or other equivalent means if the corrosion (侵蚀)of such unprotected parts results in a risk of fire, electric shock, or injury to persons (9。Outdoor use: A type 3R, 3S, or 4X enclosure evaluated with UL 50 (CCN: C
16、YIV or BGUZ), is not required to be subjected to the Rain Test (56。 A metallic enclosure shall be protected against corrosion (57。5) Copper, bronze(青铜), and brass(黄铜) containing no less than 80 percent copper, or stainless steel may be used without additional protection against corrosion (57.6)Enclo
17、sure (塑料外壳)Indoor use: UL: Flammability (燃烧等级 ):Min. V2 (UL 94) CUL: Flammability: Min. V-1 (UL 94) Resistance to arcing properties: UL 746C Moisture absorptive propertiesOutdoor use: CYIV or BGUZ), is not required to be subjected to the Rain Test An enclosure of a unit shall be constructed to reduc
18、e the risk of electric shock due to weather exposure and shall prevent live parts, electrical components, or wiring (not identified (鉴别)for use while in contact with water) from becoming wetProtective Devices (保护装置)The protective device may be located in either the primary or secondary circuit (可在初级
19、或次级线路 ) Type of protective device: Thermostat, Thermal Cutoff, Positive Temperature Coeffecient (PTC) Resistor, Negative Temperature Coeffecient (NTC) Resistor, Fuse, Eutectic Material (双合金材料 )An protective device shall not open when delivering its rated output (正常额定输出时, 保护装置不可做动) A protective devic
20、e for a not inherently limiting Class 2 power unit shall not be of the automatic reclosing type(自动恢复式) and shall be rated with Table 30.2 and provided in secondary circuitCoil Insulation (变压器线圈绝缘)Any type or thickness of insulation may be used if the coil withstands the induced potential test (13.2.
21、8.b) Tape used as insulation in lieu of (代替)spacing shall provide a continuous 1/32 inch (0.8 mm) minimum wide bent up edge against the bobbin flanges (使用胶带当绝缘以抵押间距要求则须提供至少 0。8 mm宽的反折) (13。2.3)A flanged, bobbin-wound transformer shall be subjected to the output loading test continued for 15 days if
22、the transformer has:The primary winding wound over the secondary winding or the secondary winding wound over the primary winding;The primary winding insulated from the secondary winding by a layer of insulating material other than coil form/bobbin The test is not required to be applied for 15 days i
23、f the following requirements are met: Multiple layered winding wire UL 746A, UL 746B, UL 746C Meet spacing requirement Table 24.1, Table 24。2 Alternate spacing UL 840 Triple insulated wiring Subject 2353 (OBJT2)Input Connection (输入连结)Multiple Voltage Rated Power Unit (多输入电压电源适配器)Definition (定义): A p
24、ower unit with a rated voltage range (such as 100 240 volts) or more than one discrete voltage rating (such as 120/240 volts)Intended for Use By Travellers (旅行者用电源适配器)Definition (定义): (14。1。4) A multiple voltage rated direct plug-in power unit with a 125 V, 15 A (parallel) input blade configuration,
25、 or a multiple voltage rated cordconnected power unit with a nondetachable power supply cord terminating in a 125 V, 15 A (parallel) blade plugRequirements for Intended for Use By Travellers (旅行者用电源适配器的要求):1.4)a) The blade assembly shall be a 125 volt, 15 amp configuration(构造);b) The power unit shal
26、l employ a user adjustable (可调整的)voltage selector and comply with Switch Position Test, or be capable of operating at different voltages without user adjustment;c) The input voltage rating shall include nominal 120 volt;d) The power unit shall be marked as specified in 51。8;e) The power unit shall b
27、e provided with instructions as specified in 54.4 A multiple voltage rated power unit intended for use by travelers shall be marked as follows with the following or equivalent: (51.8)a) ”See instruction manual for use in countries other than the U.S.A.” orb) “See instructions for input voltage conve
28、rsion. orc) “See instructions if the input plug does not fit the power outletInstructions shall include (a) (c) or the equivalent, as appropriate. The items shall be preceded by ”IMPORTANT SAFETY INSTRUCTIONS SAVE THESE INSTRUCTIONS” and DANGER - TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, CAREFUL
29、LY FOLLOW THESE INSTRUCTIONS in letters of 1/8 inch (3.18 mm) high or in a readily visible contrasting text (54。a) ”Be sure voltage selector is in correct voltage position before plugging in。” The instructions shall also specify the procedures to follow for changing the voltage selectorb) ”For use in the U.S。A。, the voltage selector switch must be placed in
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