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不知道LZ从哪里看到的这个条款?0 g2 X5 p5 [/ N* S& i# \8 e
EN 60335-1:2002 27.5
# r" E7 b' s! v9 [/ SA current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and ^- J' L2 x3 [: Z
equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed+ {; Y: Q$ p6 R7 O* @
between the earthing terminal or earthing contact and each of the accessible metal parts3 m' g5 M8 I% l' t: A% ~5 g
turn.( n' l9 @% L K# t/ s
The voltage drop between the earthing terminal of the appliance or the earthing contact of the
! t8 W8 C9 e) U/ Q+ d3 K& V! Rappliance inlet and the accessible metal part is measured. The resistance calculated from! F2 q7 l" I5 N, p/ d: y
the current and this voltage drop shall not exceed 0,1 Ω.
) b+ ]0 y- w# f4 B! ]) H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 X u% A0 |/ L: y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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