|
|
看了一下IEC 60950-1 2nd的clause 2.1.1.7裡面有一段敘述:, _) X* m+ s/ ~; |& b) K* L: M) H
The relevant time constant is the product of the effective capacitance in microfarads and the; t( N% _' ` ^4 T7 p$ f0 y
effective discharge resistance in megohms. If it is difficult to determine the effective% c4 z1 K. g. ]9 z
capacitance and resistance values, a measurement of voltage decay at the point of external) A" N5 Q2 ?$ u" S+ X9 P1 S
disconnection can be used. When conducting the voltage decay measurement, the result is
- ~8 V6 \. g3 l6 R" F1 qreferred to an instrument having an input impedance consisting of a resistance of
' M% Q( B) c% l7 k! a7 [8 Z100 M Ω ± 5 M Ω in parallel with an input capacitance of 20 pF ± 5 pF.0 X% P8 [# S- J
不知道這算不算有要求 |
|