|
|
A.1 In order to determine whether a conductive part is a live part which may cause an electric
3 z/ h7 @5 M5 X- v# Nshock, the lamp controlgear is operated at rated voltage and nominal supply frequency, and2 h6 Y( D2 A: j6 M) F
the following tests are conducted.
1 X2 ~/ O1 e" D0 jA.2 The part concerned is a live part if a current of more than 0,7 mA (peak) or 2 mA d.c. is* l M! p! u8 k- ?! D; b
measured.
5 ]5 _$ ]6 E; S2 |& `5 }For frequencies above 1 kHz, the limit of 0,7 mA (peak) is multiplied by the value of the# H/ L! w3 e5 M* P6 ~+ T
frequency in kilohertz, but the result shall not exceed 70 mA (peak).
7 A5 J' ^+ F4 I! `The current flowing between the part concerned and earth is measured.. L! G/ C6 B( J
Compliance is checked by measurement in accordance with Figure 4 and 7.1 of IEC 60990.
: A. S% W0 `/ [; j( T; UA.3 The voltage between the part concerned and any accessible part is measured, the4 O, m: j4 k I- Z
measuring circuit having a non-inductive resistance of 50 kΩ. The part concerned is a live
1 X, |# ^1 E; Y5 W2 h, B; zpart if a voltage of more than 34 V (peak) is measured.$ _) s2 d; s* p1 Q o
For the above test, one pole of the test supply shall be at earth potential. |
|
/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 2010-4-16 17:44
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡
楼主