标题: UL1310与UL1012的区别？ [打印本页] 作者: Liu 时间: 2010-6-8 09:04 标题: UL1310与UL1012的区别？ 从标题上看：- d5 p- g& X1 _2 ?4 d3 Z! }* m
UL1310—Class 2 Power Units 9 s# `& Y) I5 K3 W/ P. FUL1012—Power Units Other Than Class 2! n* g6 s) n+ e# ~6 |
从scope上看： 5 R2 b" s$ I# Y3 H: [3 {UL1310—These requirements cover indoor and outdoor use Class 2 power supplies and battery chargers.0 W$ ^/ j! U4 o) H, O2 V
These units utilize an isolating transformer and may incorporate components to provide an alternating- or" J4 Z* ~( z2 w
direct-current output. Each output provides Class 2 power levels in accordance with the National Electrical ' D9 t6 G7 ^- @+ Q0 QCode, ANSI/NFPA 70. Maximum output voltage does not exceed 42.4 V peak for alternating current, 600 E$ p5 ~( \9 j& P9 G: i/ }, p
V for continuous direct current. These products are intended primarily to provide power to low voltage, & B2 Y( A5 D% [4 y! P& V) A( S1 selectrically operated devices. These requirements apply to:% Y5 y' `/ d* ~3 D
a) Portable and semipermanent mounted direct plug-in units provided with 15 A blade , n0 |, H5 w$ b3 s& g/ ~configurations for use on nominal 120 or 240 V alternating current branch circuits with a+ H' X5 _* O6 ~- L/ L( q4 Z
maximum potential of 150 V to ground;, A% I; Z0 j5 v. ]; E1 @2 X
b) Cord- and plug-connected units provided with a 15 or 20 A attachment plug configuration for / ?* T- e/ K5 c4 J$ p5 y2 r! H+ ]use on nominal 120 or 240 V alternating current branch circuits with a maximum potential of6 @, u8 r; B% d- @7 y. {8 O
150 V to ground; and4 c* `* q5 j, I% B' y0 K! h
c) Units permanently connected to the input supply for use on nominal 600 V or less alternating* e+ }7 p) [- x0 o" ]) y
or direct current branch circuit.6 t9 ^0 Q( M2 d% h
Direct plug-in and cord-connected units may also be provided with an integral cigarette lighter connector0 o7 P6 M$ A/ r0 Z5 K3 |# S
assembly, or a direct current input jack for being powered from a vehicle battery adapter or from a data % Q, X/ l0 e( ]* ]9 U2 E4 [port associated with information technology equipment. These units utilize an isolating transformer and ( D# {; E e# ?4 j" P$ Rmay incorporate components to provide an alternating- or direct-current output. Each output provides ( b3 F0 J! U! x% R6 S5 v7 J& _# EClass 2 power levels in accordance with the National Electrical Code, ANSI/NFPA 70. Maximum output, P9 o6 P' C1 o' R3 J
voltage does not exceed 42.4 V peak for alternating current, 60 V for continuous direct current. These/ ~; F) O! _$ }, t5 a) F8 K' `
products are intended primarily to provide power to low voltage, electrically operated devices.$ s: C0 L$ i) A/ u" }% H
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UL1012—These requirements cover portable, stationary, and fixed power units having an input rating of 600: P& A- a0 W/ ^+ E7 p3 L
volts or less, direct- and alternating- current, with at least one output not marked Class 2, and that are . }" J2 j! a$ N; a5 Y8 V8 u4 rintended to be employed in ordinary locations in accordance with the National Electrical Code, 9 N4 @& k1 ^. u1 UANSI/NFPA 70. # @7 Q# z* L! V x) n, [ # Z: h! Z2 c3 L( g但是，我怎么都分不清，什么是Class 2，哪位大哥解释一下？作者: lanfeiyuner 时间: 2010-6-8 09:18
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。作者: huaxing001 时间: 2010-6-8 10:25
class 2和classⅡ是不同的概念。$ V+ Y1 U& ~/ N6 j9 Q; |6 T1 d1 }& k
引用第1楼lanfeiyuner于2010-06-08 09:18发表的 :1 W# l2 e8 g$ [9 z6 {8 n
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。
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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：' l/ l q) k: v( P' p' x
Class 2 Circuit. The portion of the wiring system between 8 I/ v% j* |. g$ x( k9 T3 ?the load side of a Class 2 power source and the connected8 ^8 {9 K2 s) w7 w6 V/ a: u7 ^4 W
equipment. Due to its power limitations, a Class 2 circuit 8 P) c' b4 R+ Q: N; c7 f+ Aconsiders safety from a fire initiation standpoint and provides L9 l$ h; {( [$ B6 x) t1 ^* vacceptable protection from electric shock.作者: bob_dai 时间: 2010-11-14 19:53
楼上正解，UL1310里面也有具体的定义作者: kellysun 时间: 2012-4-1 19:08
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呢作者: faige2006 时间: 2012-4-1 20:18
class II是双重绝缘。作者: kennykkou 时间: 2018-11-27 09:04
CLASS Ⅱ插头是双插 ; \" s2 q1 \$ }# F' w3 d' G! n% uCLASS Ⅰ插头是三插(含接第插) R! A, s3 O6 s5 YCLASS 0Ⅰ插头虽是双插但要附接地线 " ?" c# H- u) ^. y7 d0 @ ) T( \" J) Q8 s& d3 L4 s