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不知道LZ从哪里看到的这个条款?1 U# w% R5 V# ?) E
EN 60335-1:2002 27.5
6 j- L0 [$ E& tA current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and! s( Y$ u5 v" A+ [* R
equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed
- T8 n4 C( \4 R8 S1 C4 [; wbetween the earthing terminal or earthing contact and each of the accessible metal parts- p) o: D; H1 L @
turn.
+ U6 Z7 R" p- D' T! q7 q5 MThe voltage drop between the earthing terminal of the appliance or the earthing contact of the
, k* f: ^+ ~' z, u/ Pappliance inlet and the accessible metal part is measured. The resistance calculated from
) Z- W3 }! V" U Kthe current and this voltage drop shall not exceed 0,1 Ω.
* Y+ m! Z5 C$ L* o$ o8 Z" \0 B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).5 f$ m2 T" A! ]! o8 v2 {
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. |
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