UL1310与UL1012的区别？

Liu

广东安规检测
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从标题上看：
7 h8 ~) E& E8 y7 B$ yUL1310—Class 2 Power Units
UL1012—Power Units Other Than Class 2
1 |1 V' `1 V; u从scope上看：
UL1310—These requirements cover indoor and outdoor use Class 2 power supplies and battery chargers.
These units utilize an isolating transformer and may incorporate components to provide an alternating- or
* p' x  p; A+ z3 U( w0 z8 J2 Wdirect-current output. Each output provides Class 2 power levels in accordance with the National Electrical
Code, ANSI/NFPA 70. Maximum output voltage does not exceed 42.4 V peak for alternating current, 60
" M% H9 E! p; S0 P! ^V for continuous direct current. These products are intended primarily to provide power to low voltage,
electrically operated devices. These requirements apply to:
a) Portable and semipermanent mounted direct plug-in units provided with 15 A blade
4 o* f  m8 N' Z- {& r( wconfigurations for use on nominal 120 or 240 V alternating current branch circuits with a
maximum potential of 150 V to ground;
, s3 j  x) `2 j  ^b) Cord- and plug-connected units provided with a 15 or 20 A attachment plug configuration for
use on nominal 120 or 240 V alternating current branch circuits with a maximum potential of
150 V to ground; and
c) Units permanently connected to the input supply for use on nominal 600 V or less alternating
or direct current branch circuit.
Direct plug-in and cord-connected units may also be provided with an integral cigarette lighter connector
7 `# w: u  ]" P. {4 Jassembly, or a direct current input jack for being powered from a vehicle battery adapter or from a data
port associated with information technology equipment. These units utilize an isolating transformer and
6 O5 h: p$ Q1 W7 x, d: U. fmay incorporate components to provide an alternating- or direct-current output. Each output provides
Class 2 power levels in accordance with the National Electrical Code, ANSI/NFPA 70. Maximum output
voltage does not exceed 42.4 V peak for alternating current, 60 V for continuous direct current. These
products are intended primarily to provide power to low voltage, electrically operated devices.
, Q$ t7 W$ Y/ W2 S  V1 J
3 P0 u8 s( p, S2 E* o$ @, c- n6 VUL1012—These requirements cover portable, stationary, and fixed power units having an input rating of 600
volts or less, direct- and alternating- current, with at least one output not marked Class 2, and that are
: o8 l4 X+ K4 v6 I: `; wintended to be employed in ordinary locations in accordance with the National Electrical Code,
+ X" u, N7 ]& p, z& B; GANSI/NFPA 70.
5 `! L7 g. P( U' A# ~
4 d# }- y' E0 M8 j但是，我怎么都分不清，什么是Class 2，哪位大哥解释一下？

kennykkou

CLASS Ⅱ插头是双插
CLASS Ⅰ插头是三插(含接第插)
" t6 q9 a, i, @" F2 u5 v- a9 ?# aCLASS 0Ⅰ插头虽是双插但要附接地线

lanfeiyuner

如果电源模块是class II 电源，这可以用UL1310 来测试认证。class II 电源是指采用隔离型变压器，输出电压低于直流60伏， 电流小于150/Vmax安培的电源。 而对非class II电源， 则采用UL1012来测试认证。

huaxing001

class 2和classⅡ是不同的概念。

1 l3 T: v- V; Z( m; _3 {class 2电源最基本的要隔离变压器和功率不大于100W

Liu

引用第1楼lanfeiyuner于2010-06-08 09:18发表的  :
如果电源模块是class II 电源，这可以用UL1310 来测试认证。class II 电源是指采用隔离型变压器，输出电压低于直流60伏， 电流小于150/Vmax安培的电源。 而对非class II电源， 则采用UL1012来测试认证。

: @: V) V) o6 ?( |你拿欧洲概念和我说美国标准，我更糊涂了。我查NFPA 70-2008的725.2 Definitions.如下：
4 j3 ^8 d% l3 R( C1 cClass 2 Circuit. The portion of the wiring system between
1 }. y, {1 e4 z* Xthe load side of a Class 2 power source and the connected
. e9 `. h4 E" |9 p* }5 q7 ~6 iequipment. Due to its power limitations, a Class 2 circuit
9 d7 U* X1 r; T& ?% M4 Nconsiders safety from a fire initiation standpoint and provides
9 n/ P: l  B0 x- e: |* ~' pacceptable protection from electric shock.

bob_dai

楼上正解，UL1310里面也有具体的定义

kellysun

是不是输出高于60V 时就不能过UL1310了，如果输出高于60V如何过1012呢

faige2006

class II是双重绝缘。