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不知道LZ从哪里看到的这个条款?# X2 ~# I% g6 D$ A2 |+ F. J% i4 ?
EN 60335-1:2002 27.5, M, }; l$ D4 c+ b9 q+ J
A current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and
6 b. M- N2 J5 w+ J1 W/ }equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed0 Z' V! ^% A. x/ v6 A
between the earthing terminal or earthing contact and each of the accessible metal parts
1 \: u+ U" p" T: M5 Nturn./ F5 I3 A! b4 g1 k2 `. z' O
The voltage drop between the earthing terminal of the appliance or the earthing contact of the
8 O/ X; N" O# b$ t/ g6 Oappliance inlet and the accessible metal part is measured. The resistance calculated from
# f8 G8 R# ?; r: `' [3 F, Lthe current and this voltage drop shall not exceed 0,1 Ω.- l. P G$ W- n7 o! R' O7 d6 m
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).
1 y: B1 S: f# w. U2 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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