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标题没写产品类别，这是家电版块就按家电来看了。EN60335的附录A.2有要求（详细电压要求见附表）：3 l7 s4 C& Y0 Z% `5 Y) v
A.2 Electric strength test
" p/ U! u2 A6 P, s% [: SThe insulation of the appliance is subjected to a voltage of substantially sinusoidal waveform ' v7 @( |$ ]' {8 `: E5 M
having a frequency of approximately 50 Hz or 60 Hz for 1 s. The value of the test voltage and " L! Z7 v; J1 ^9 m u7 K7 t
the points of application are shown in table A.1.
; L4 Z2 D5 ]% t. \0 e9 aNOTE 1 It may be necessary for the appliance to be in operation during the test to ensure that the test voltage is - n: F& H$ L' D. z+ t$ |% P
applied to all relevant insulation, for example, heating elements controlled by a relay. $ C L# _4 E5 I! E# y
No breakdown shall occur. Breakdown is assumed to occur when the current in the test circuit
! K( O5 D; K. x+ \exceeds 5 mA. However, this limit may be increased up to 30 mA for appliances with a high - L" p+ ?5 \7 \6 M
leakage current. ! K+ z' h3 e/ F1 }$ H/ x- x
NOTE 2 The circuit used for the test incorporates a current sensing device that trips when the current exceeds
, ]3 A# H$ j( d, E+ K' H( V% @the limit. 5 X A! o5 ~2 w7 M3 h( J
NOTE 3 The high voltage transformer is to be capable of maintaining the specified voltage at the limiting current. ! y- I' Y' d! p3 x% F! [* [
NOTE 4 Instead of being subjected to an a.c. voltage, the insulation may be subjected to a d.c. voltage of 6 \# P N+ D+ Q: l
1,5 times the value shown in the table. An a.c. voltage having a frequency up to 5 Hz is considered to be a d.c. ' F4 q/ q, h8 `: g2 r$ K$ i$ y* c
voltage.
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发表于 2012-8-20 21:07