本帖最后由 H-RH 于 2013-6-30 01:28 编辑
5 v; ~! j8 R9 f
9 V8 b2 u3 ?# i: A) N* D; l你说的应该属于 UL 982 Section 22.4 及 66.25.1 "with a stop position while energized" + Q& V+ U5 [: `$ r" n7 x: k+ G
4 g. [+ o3 J. H+ ]* ~9 `
/ G) O6 \! ?1 I0 J
22.4 If a malfunction or breakdown of an electronic component, located in any circuit of the product, results in increased risk of injury to persons, such as a loss of OFF control or unexpected operation, that circuitry shall comply with the requirements in the Standard for Tests for Safety-Related Controls Employing Solid-State Devices, UL 991. A single malfunction is to be considered at a time. ; n. @% S8 J- `/ ]$ M1 {
Exception: An appliance employing exposed moving parts and electronic controls with a "STOP" position, where a single malfunction of a component can cause unexpected operation, shall be provided with a motor control OFF switch in accordance with 17.4 and be constructed with a red light which flashes only when the appliance is energized and when the motor is in a stop condition but not OFF. See also 66.25 and 70.32. 3 r* q' _' R: | k5 W
66.25.1 Products employing exposed moving parts and electronic controls with a stop position while energized, and required to be provided with a flashing light in accordance with the Exception to 22.4: ....
. L# o3 O7 A7 W, F
1 R$ }% o% Q$ c8 i' X$ N7 O: T
( P* r! M# G/ a, A, q: w8 E即电源已经启动(energized), 但操作在 stop position, 要求闪烁之红灯(red flashing light)! 0 M0 _8 a8 i8 p) X& H: |3 O8 V' O
在 Certification Requirement Decision (2012-01-13) 又作了少许更改, 不一定要 red light:
* K; W( ?5 i3 T( C1 p( z- b2 K- Z' s$ a+ ^( o
& `* ^! V: [ r+ u, [
.... shall be provided with a motor control OFF switch in accordance with 17.4 and be constructed with a light which flashes only when the appliance is energized and when the motor is in a stop condition but not OFF. ' E( c& b$ ^3 ?6 v& C
% T8 ?. T) [* q4 h
| 
/1 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2013-6-28 18:42
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
发表于 2013-6-29 03:01
楼主