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不知道LZ从哪里看到的这个条款?7 I7 A7 w H5 [% f) @2 W7 Z6 ~
EN 60335-1:2002 27.5' r5 ~' i- ]. ]& V! F) P# Y
A current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and2 X4 E3 i W: M" g* |
equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed1 N7 P ?! o: S- l. c6 J
between the earthing terminal or earthing contact and each of the accessible metal parts9 F; ]& L" }6 ~6 s O$ f& _0 F
turn.
. Z7 Z: }. v- Z# t; B2 V! vThe voltage drop between the earthing terminal of the appliance or the earthing contact of the( K/ R8 a) g& v2 Z) F Z
appliance inlet and the accessible metal part is measured. The resistance calculated from
6 G- O* b$ ? j3 C) uthe current and this voltage drop shall not exceed 0,1 Ω.
& L$ h: A3 w* h, B; S% 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).
6 }: I5 E9 c9 }1 f" {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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