标题: UL插头两芯和三芯分别用在什么电器上？ [打印本页] 作者: mrhqwf 时间: 2011-11-1 10:58 标题: UL插头两芯和三芯分别用在什么电器上？ 大家好！我想问一下，UL插头分两芯和三芯，分别是用在什么类型的电器上？是标准要求的还是客户要求？谢谢！作者: byl77 时间: 2011-11-1 11:18
分等级吧?class 1或者class 2或 class 3作者: aiduoxi 时间: 2011-11-1 11:55
跟产品走的作者: 水中月 时间: 2011-11-1 13:13
应该是看产品！作者: mrhqwf 时间: 2011-11-1 13:20
煮蛋器，Class I，120V,350W，用什么UL插头？两芯还是三芯？作者: mrhqwf 时间: 2011-11-1 16:44
老大们帮忙 解决一下，谢谢了！！！作者: ouychp 时间: 2011-11-1 20:26
外壳无可触摸的导电物体就用2芯，比如胶壳的充电器，外壳有可接触的导电物体就用3芯，比如铁壳的充电器作者: 往事如烟 时间: 2011-11-1 20:30
一般I类电器，使用三芯；其它使用二芯。作者: ouychp 时间: 2011-11-1 20:36
Class 1 Circuit. The portion of the wiring system between the load side of the overcurrent device or power-limited supply and the connected equipment. The voltage and power limitations of the source are in accordance with 725.21. 7 C. @8 z; d2 P; b4 T, o0 ~! {Class 2 Circuit. The portion of the wiring system between the load side of a Class 2 power source and the connected equipment. Due to its power limitations, a Class 2 circuit considers safety from a fire initiation standpoint and provides acceptable protection from electric shock. / D$ a+ z, _& `0 x+ i" F2 U) R& H
Class 3 Circuit. The portion of the wiring system between the load side of a Class 3 power source and the connected equipment. Due to its power limitations, a Class 3 circuit considers safety from a fire initiation standpoint. Since higher levels of voltage and current than for Class 2 are permitted, additional safeguards are specified to provide protection from an electric shock hazard that could be encountered. $ E- j: a7 }& F# s725.21 class 1circuit classifications and power source requirements. ; W" S$ W/ \! `. R0 p- e8 BClass 1 circuits shall be classified as either class 1 power-limited circuits where they comply with the power limitations of 725.21(A) or as class 1 remote-control and signaling circuits where they are used for remote control or signaling purposes and comply with the power limitations of 725.21(B). % j( o% M8 [6 S$ \5 G# N(A) class 1 power-limited circuits. These circuits shall be supplied from a source that has a rated output of not more than 30 volts and 1000 volt-amperes. 7 E$ j; G3 Q; l5 l: b9 S7 a9 H(1) class 1 transformers. Transformers used to supply power-limited class 1 circuits shall comply with article 450 / y) r5 O. z9 z8 Q(2) other class 1 power sources. / s( W, m6 T0 a
(B) Cass 1 remote-control and signaling circuits. These circuits shall not exceed 600volts the power output of the source shall not be required to be limited作者: mrhqwf 时间: 2011-12-6 13:21
UL 3芯电源线最小的就是18AWG，晕，配上小小的煮蛋器，怎么看怎么别扭。做了样板了，客人看了也别扭，只好改2芯。 作者: 小小黑 时间: 2011-12-15 11:42
I类的产品一般在100-127V电压时使用两芯插头的多，大多客户都喜欢做成0类而不是I类，主要按客户要求作者: 美好的未来 时间: 2011-12-15 19:53
CE规格产品才有分几类电器，UL规格没有分几类电器作者: zqwb2011 时间: 2011-12-15 19:58
这个主要是看你的产品需求及客户要求来定的作者: 珠江啤酒 时间: 2011-12-31 16:37
美标没有分I II 类电器的。是可以不接地的。看产品
