jjlamshushushu 发表于 2013-7-29 15:33

L,N两极与保护接地之间有5000pF的X电容的插头放电要测试吗？

请问各位专家：
L,N两极与保护接地之间有5000pF的X电容，1s后插头L,N和地之间的放电要测试吗？
电容小于0.1UF的插头放电不需要测的依据是啥？
IEC 61347-1 第10.2条的0.5UF的限值和这个0.1UF的限值有联系吗？

Nezof 发表于 2013-7-29 15:37

不需要测了，这个电容值储存的电量基本可以忽略

jjlamshushushu 发表于 2013-7-29 16:06

Nezof 发表于 2013-7-29 15:37 static/image/common/back.gif
不需要测了，这个电容值储存的电量基本可以忽略

有依据吗？

jjlamshushushu 发表于 2013-7-29 16:07

jjlamshushushu 发表于 2013-7-29 16:06 static/image/common/back.gif
有依据吗？

是否组要测还有X，Y电容的区别吗？

tsunn 发表于 2013-7-29 16:47

0.1uF： 用插头与电源连接的、导轨连接器连接的、带可触及触点的连接器连接的灯具，如果灯具含有一个超过0.1uF的电容，应装有放电装置，使得断开电源1秒后，插头两插销之间电压不超过34V。

0.5uF: 上述灯具之外的灯具，如果内含电容器超过0.5uF, 放电装置应使得断开电源1分钟后，电容器两端电压不超过50V

Nezof 发表于 2013-7-29 17:21

jjlamshushushu 发表于 2013-7-29 16:06 static/image/common/back.gif
有依据吗？

哦，如果说这是电子老师教给我的常识呢？

jcyxb 发表于 2013-7-29 17:43

标准就是依据啊，认真看

520168 发表于 2013-7-29 18:23

8.2.7Luminaires (other than those mentioned below) incorporating a capacitor of capacitance
exceeding0,5μFshallbeprovidedwithadischargedevicesothatthevoltageacrossthe
capacitor 1 min after disconnection of the luminaire from the source of supply at rated voltage
does not exceed 50 V.
Portable luminaires designed to be connected to the supply by means of a plug, track adaptor
connectedluminaires,orluminaireswithsupplyconnectorwithcontactsaccessiblewiththe
standard test finger and incorporating a capacitor of capacitance exceeding 0,1 μF (or 0,25 μF
for luminaires with a rated voltage less than 150 V) shall be provided with a discharge device
so that 1 s after disconnection, the voltage between the pins of the plug or adaptor/connector
contacts does not exceed 34 V.
Otherluminairesconnectedtothesupplybymeansofaplugandincorporatingacapacitor
exceeding0,1μF(or0,25μFforluminairesofratedvoltagelessthan150V)andtrack
adaptors mounted in luminaires shall discharge so that after 5 s, the voltage between the pins
of the plug does not exceed 60 V r.m.s.
Subclause0.4.2requiresthat,unlessotherwisespecified,thetestsofthispartofIEC 60598
shall be conducted with the lamp in circuit. In the case of this subclause, the lamp shall be in
circuitwhenthemeasurementofthevoltagefromthecompensationcapacitorismade,ifit
leads to a more onerous result.
The residual voltages referred to in this requirement shall be measured on only one luminaire,
even if it is envisaged that such a luminaire may be installed in a multiple luminaire system.

山炮 发表于 2013-7-29 19:56

不用测，5000pF才0.005uF。不得用X电容，要用Y2。

H-RH 发表于 2013-7-30 04:52

X 电容是不容许用于接地的!
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