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不知道LZ从哪里看到的这个条款?
6 ~( e3 b( G, ]3 J2 @3 a+ R' [EN 60335-1:2002 27.5
1 X# L# M7 i8 s& x9 P' V. ^A current derived from a source having a no-load voltage not exceeding 12 V (a.c. or d.c.) and" f2 R a! F1 F0 Z8 q6 ^! }
equal to 1,5 times rated current of the appliance or 25 A, whichever is higher, is passed
! g( p6 ]9 A0 \5 o; K- k: T T( Bbetween the earthing terminal or earthing contact and each of the accessible metal parts) y/ ^ Q0 ]# }; ~: y
turn.! K1 ?9 H1 I3 f: T8 |
The voltage drop between the earthing terminal of the appliance or the earthing contact of the
' O I$ n# w" N2 F4 Y/ pappliance inlet and the accessible metal part is measured. The resistance calculated from, O8 _2 l# f; v' Y8 I4 P
the current and this voltage drop shall not exceed 0,1 Ω.
9 @! y" n; n9 T* O* ], l( D9 u; V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). |0 n( y( L& L7 O- E
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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发表于 2008-12-12 16:54
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