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不知道LZ从哪里看到的这个条款?$ I& L8 Y1 z2 f l
EN 60335-1:2002 27.56 N0 d# e& b6 `; V
A current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and
# j% F+ S% |0 ^! Mequal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed9 \- g3 F. q; p4 `6 y( `
between the earthing terminal or earthing contact and each of the accessible metal parts
4 h2 j% Q5 ^, Rturn.
& T( I, n: T% k. C# Y. LThe voltage drop between the earthing terminal of the appliance or the earthing contact of the
! k% q+ i. m# Sappliance inlet and the accessible metal part is measured. The resistance calculated from0 g* X, c- q: I5 V4 R1 p9 {
the current and this voltage drop shall not exceed 0,1 Ω.1 s3 Y2 f3 V4 a' F8 L
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).
$ S$ D B5 V% j: M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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