|
不知道LZ从哪里看到的这个条款?8 Z9 b$ U; [! y5 `& d; T
EN 60335-1:2002 27.5
$ C) O) C- y, J: {& L# @; iA current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and9 y/ C! M" m4 [
equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed/ c8 P& \, G9 a9 [
between the earthing terminal or earthing contact and each of the accessible metal parts
. a6 q5 L l$ m0 Aturn.
+ w% H1 G# Y3 l, v1 qThe voltage drop between the earthing terminal of the appliance or the earthing contact of the( _; F9 p% E% I i2 O
appliance inlet and the accessible metal part is measured. The resistance calculated from A) J% k/ Y( `( }$ L) B; q
the current and this voltage drop shall not exceed 0,1 Ω.- C0 R0 {8 A( V! E% _
标准只是说从空载电压不超过12V的电源取得电流,电流值等于1.5倍的额定电流或者25A(取较大值).
$ h4 Z* P' k7 [: J9 z' w6 O测试时施加的是电流,读到是是电压.通过计算能得到电阻..并不是同时施加电压和电流. |
|