本帖最后由 H-RH 于 2013-6-30 01:28 编辑
2 b9 H9 |) e7 N* x1 c: |/ I( X* a3 }6 I
你说的应该属于 UL 982 Section 22.4 及 66.25.1 "with a stop position while energized"
8 F! c" s9 g( b; z$ N, g
* g0 \+ i+ `+ k) N& C' w0 B
0 B- V4 o; t2 P1 K) i4 X. q22.4 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. 1 W, }. d0 Q5 C2 j1 P
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. " X1 A; c; }9 g/ j2 L1 G$ V
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: ....
9 q+ b1 ]( W: y q! @, q
/ b' F: S( b1 j. n" _0 L/ T( Q) w/ O4 w2 l
即电源已经启动(energized), 但操作在 stop position, 要求闪烁之红灯(red flashing light)! ( Z" f# w3 p z3 z7 p" ~7 D" l# u) i+ {. m
在 Certification Requirement Decision (2012-01-13) 又作了少许更改, 不一定要 red light: , d7 N+ j" D. x2 X1 U4 z
+ [# d$ c3 V* V o) h0 C; X4 x6 |% a/ j
5 q+ p4 ^1 U7 Q. d- i: }( a
.... 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. 8 y! _& P# k0 j i1 G/ m2 x
% I% p: {( N# m3 |! k. p p- X
|