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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):9 H$ q' Q1 j5 J& I5 D1 q6 R
A.2 Electric strength test
E; O* E( q! L- f3 UThe insulation of the appliance is subjected to a voltage of substantially sinusoidal waveform
5 g, N7 b; D6 ihaving a frequency of approximately 50 Hz or 60 Hz for 1 s. The value of the test voltage and $ o) t8 L" f& a: V4 a U, E5 l
the points of application are shown in table A.1.
; @- E5 F! U* i8 eNOTE 1 It may be necessary for the appliance to be in operation during the test to ensure that the test voltage is 3 X1 t' E# U2 Z8 `$ o
applied to all relevant insulation, for example, heating elements controlled by a relay.
! G+ q ?7 k; xNo breakdown shall occur. Breakdown is assumed to occur when the current in the test circuit
1 | h K" N9 h/ mexceeds 5 mA. However, this limit may be increased up to 30 mA for appliances with a high
) G M1 A3 C [' G. Z% bleakage current. 6 Z% q( M' k! S' T1 N8 @& N
NOTE 2 The circuit used for the test incorporates a current sensing device that trips when the current exceeds 0 u) a p7 I# }
the limit.
: U) K/ Z3 R* j' s5 W: sNOTE 3 The high voltage transformer is to be capable of maintaining the specified voltage at the limiting current. & }% M7 I- s \ X
NOTE 4 Instead of being subjected to an a.c. voltage, the insulation may be subjected to a d.c. voltage of ' R: S2 o7 h4 s! P
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.
9 n4 m$ ~- m1 N: Q- mvoltage.
4 K- \* `' D" p0 { B7 M ' p" {: ]( ^7 p/ T" ?
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