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不知道LZ从哪里看到的这个条款?
8 T" t# M. d9 S+ P! E* s/ AEN 60335-1:2002 27.5
: A' O. w4 A% w! s5 t4 Y- BA current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and. \) Z" `# m" h2 y
equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed
& F" Z4 m; i9 @2 Qbetween the earthing terminal or earthing contact and each of the accessible metal parts
0 V* A3 v: |1 y" g# Vturn.2 q( t- j. }$ C
The voltage drop between the earthing terminal of the appliance or the earthing contact of the
5 ` B8 e; n9 F) Oappliance inlet and the accessible metal part is measured. The resistance calculated from
4 `$ _& g2 L# Y o" \' Bthe current and this voltage drop shall not exceed 0,1 Ω.$ U4 k+ q6 H) s8 S
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 j; t' r* P$ o( v! a4 C0 z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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