安规网
标题: 电源开关指示问题 [打印本页]
作者: prod10 时间: 2013-6-28 18:42
标题: 电源开关指示问题
一款座式搅拌机的开关控制电子板，分别带有档位指示情况，有疑问的是:在待机状态情况下是否需要灯光闪烁提示及电源启动开关装置，请指出出自哪个UL标准条款
作者: H-RH 时间: 2013-6-29 03:01
本帖最后由 H-RH 于 2013-6-30 01:28 编辑 8 x9 P/ l u2 [$ R6 U; }
! M% p9 f* n+ |. D: w
你说的应该属于 UL 982 Section 22.4 及 66.25.1 "with a stop position while energized"
4 F/ ^9 |, |/ w' m& b5 ~2 k
- N" V7 t; R* J( R: [) L! \" R( H+ ]; b& }7 b
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.
9 B- M$ R8 |! y. I; I/ ?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.
$ J$ [7 C Y8 q7 t \( }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: ....
) J6 C5 A0 |* g, h! D, ], P2 H7 `4 M7 m, r0 E& E- Q$ M- k8 J
- ^) m& b/ l6 Z
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 h) S6 @' \4 r' t
在 Certification Requirement Decision (2012-01-13) 又作了少许更改, 不一定要 red light:
* [+ Z( f, Q$ @# a) p' i
4 S9 Q3 P1 Q( Q! B% g+ S( @
) ~- f" a5 c/ s4 U6 L& Z.... 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.
9 B0 k1 d9 Q' R% v2 p9 u2 U! W* B: `* X9 V5 e% d7 l4 p
作者: H-RH 时间: 2013-6-29 03:04
UL 982-2010 + Certification Requirement Decision2 O: a6 }' s" w) ~
http://bbs.angui.org/forum.php?mod=viewthread&tid=116313
作者: prod10 时间: 2013-6-29 09:41
那么搅拌器是否要带有电源总开关，其他类型的产品只需直接通电进入待机模式，灯光闪烁即可
, I( A6 F; ]" j- q5 G
作者: plmijb 时间: 2013-6-29 23:22
17.7 If a portable appliance employs a motor rated at more than 1/3 horsepower, a motor-control switch for the motor shall be provided in the appliance. See 19.8.
作者: prod10 时间: 2013-6-30 22:26
请问17.7和19.8都是出自UL982内的标准条款？
作者: H-RH 时间: 2013-7-1 15:47
prod10 发表于 2013-6-30 22:26 
" l! x. v% _" T/ o6 Q' j
请问17.7和19.8都是出自UL982内的标准条款？
是, 出自UL 9826 c/ b3 M. h) l! {' n5 `1 x2 B! H
& p; D1 D5 \, Y- o19.8 In the application of 16.2.1 and Table 19.1 to a motor not rated in horsepower, use is to be made of the appropriate table of the National Electrical Code, ANSI/NFPA 70 which gives the relationship between horsepower and full-load currents for motors. For a universal motor, the table applying to a single-phase, alternating current motor is to be used if the appliance is marked for use on alternating current only; otherwise, the table applying to direct-current motors is to be used.
作者: prod10 时间: 2013-7-5 12:50
为何对于其它类型的产品就无要求闪灯，如食物处理器和榨汁机，都是带电子版控制的吖？标准只是指出带电子控制停止的器具，求解？大神，请指导
作者: plmijb 时间: 2013-7-5 22:33
食物处理器和榨汁机在UL982中均要求一个盖驱动的内锁开关，当盖不在位时，样机不能工作。但搅拌机则没明确要求有杯控制的内锁开关。且市面上的样机大多内锁开关为独立的机械开关。 b+ s e2 a$ u! p
如果电子电路的意外启动能使样机产生伤人的危险，则需符合22.4 即电子电路符合UL991 或有闪灯+控制马达的机械开关的一条，不管是什么样机。
作者: 1170127824 时间: 2017-8-26 14:01
求解呀，不是很懂！！！！！
作者: C罗 时间: 2017-8-28 15:56
已学习
:):):):):)
作者: 1170127824 时间: 2017-8-29 17:31
在待机状态下时需要灯光提示得的
| 欢迎光临 安规网 (http://bbs1.angui.org/) |
Powered by Discuz! X3.2 |