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标题: 60335-1中对工作电压和正常工作的理解 [打印本页]

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作者: minvegetable    时间: 2011-3-24 22:10
标题: 60335-1中对工作电压和正常工作的理解
IEC 60335中关于对working voleage 和 normal operation具体该怎么去理解呢？
IEC定义3.1.3
working voltage
. i: ]9 z9 A6 y2 ^; L# Gmaximum voltage to which the part under consideration is subjected when the appliance is
5 l1 J& I: C% K& k) Y( ?supplied at its rated voltage and operating under normal operation
GB4706-1中
& J4 i# S/ Z# i# s$ n* E) b器具以额定电压并在正常工作状态下运行时，考虑的那部分所承受的最高电压.
这个该怎么去理解呢？是不是要去计算？该这样去计算呢？

还有就是对NORMAL OPERATION 的理解，标准上只是说在连接电源后正常使用下的工作状态。这里面的正常使用怎么去理解，有没有什么具体量化的标准来说明呢！比如说电压的浮动啊什么的？看这里总是有点迷糊，希望各位大侠帮忙解下惑！

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作者: 山炮    时间: 2011-3-24 22:50
如果没有升压电路和谐振电路，工作电压为额定电压，工作电压主要是在进行耐压试验和确定电气间隙和爬电距离时应用。是否需要采用插值法计算某些要求值，标准中会有相关注释。当无法确认一种工作状态是否属正常使用状态时，可以看一下的特殊要求标准的非正常试验，如果提到这种工作状态，那自然不属正常工作状态。对比11章和19章，你会清楚地发现正常工作下的电压与非正常工作下的电压有多大差异。

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作者: caballo3157    时间: 2011-3-25 08:02
NORMAL OPERATION 通标中有定义，通常每个特标中还有具体定义。

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作者: minvegetable    时间: 2011-3-27 23:02

引用第1楼山炮于2011-03-24 22:50发表的  :
7 ~" v# h2 j1 L! _( o. v如果没有升压电路和谐振电路，工作电压为额定电压，工作电压主要是在进行耐压试验和确定电气间隙和爬电距离时应用。是否需要采用插值法计算某些要求值，标准中会有相关注释。当无法确认一种工作状态是否属正常使用状态时，可以看一下的特殊要求标准的非正常试验，如果提到这种工作状态，那自然不属正常工作状态。对比11章和19章，你会清楚地发现正常工作下的电压与非正常工作下的电压有多大差异。

是不是可以这么理解，19.2和19.3中的0.85倍和1.24倍额定输入功率的电压应该说都是非正常测试了，而11章温升测试中的1.15倍等电压，是指正常测试中的最不利状态！

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作者: seekyou    时间: 2011-3-27 23:13
我的理解是：工作电压只是针对器具中的部分电路而言的。比如风筒中马达的工作电压。（详见60335-2-23 19.101的条款）：
19.101 Hairdryers are operated as specified in Clause 11 except that the motor is supplied separately at its working voltage.

! r6 e9 G0 H$ V. X4 FNormal operation 一般会在特标第三章中有定义。还是拿60335-2-23来举例吧：
* _( Q7 M+ {: X! Q5 w9 f
. q6 U  ]) P+ d+ W+ j3.1.9 Replacement:
" B. b. Z0 Z# {3 m) h+ Y# o( ynormal operation
operation of the appliance under the following conditions
Helmet-type hairdryers are operated with the axis of the hood inclined at an angle of 60° to
) X9 g% ]5 Q* D" l: L* Pthe horizontal or the maximum angle allowed by the construction if this is less. A dull blackpainted
( N9 H& S+ }! x, J' ^9 cwooden sphere, 200 mm in diameter, is placed in the hood so that its centre coincides
: b( @5 z! n8 vwith the axis of the hood, the shortest distance between the sphere and the air-outlet grille
: i( n% N& A' p+ Q' }) obeing 50 mm.
# J: H5 W2 _5 Z5 e2 c0 N/ @Hairdryers having a flexible hood attachment are operated with the hood attachment placed
over the wire frame of Figure 101, the frame being positioned over the wooden sphere.
NOTE 101 Helmet-type hairdryers that are supported by the head are operated as hairdryers having a flexible
hood attachment.
Hand-held hairdryers are operated with unrestricted airflow directed downwards.
6 C- ~, C, f- G# {, d9 xPermanent-wave appliances are operated in the normal position of use, the curling rollers
hanging freely.
Heaters for detachable curlers are operated in the normal position of use together with the
. v3 S$ {) B1 I9 |; I- bcurlers.
Curling irons, curling combs and similar appliances are operated with their major axis
horizontal.
Appliances having steam-producing or spray-producing devices are operated with the
container empty or filled, whichever is more unfavourable. However, if the appliance is
marked to indicate that it is to be used with the container filled, the container is filled. Water is
added, when necessary, to compensate for evaporation.
+ Z* e9 F9 i; m) LHand dryers are operated in the normal position of use with unrestricted airflow.
Facial saunas are operated in the normal position of use and filled with water. Water is added,
7 s, @) r3 E) Z" K. {( Awhen necessary, to maintain the steam output.

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作者: guanito    时间: 2011-3-28 07:55
正常电压一般为额定的正负百分之六，而工作电压就不同了，例空气净化器类的产品，它的负离子发生器工作电压可能在4000V左古，那时就要重新考虑爬电距离和电气间隙，不然产品在结构上就是不合格品，对人身也存在电击的危险

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