DSH 716 Probe impedance for plug discharge test

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DSH 716

Probe impedance for plug discharge test * p5 H, K7 Z+ e- ]' R: w2 \$ e( g

9.1.6 (IEC 60065) 22.5 (IEC 60335) 2.1.1.7 (IEC 60950) 6.1.2, 6.10.3 (IEC 61010) + any other as applicable

Question:
When the plug discharge test is performed using a voltage probe and oscilloscope for direct measurement of the voltage decay, what probe impedance shall be used to ensure uniform and comparable results?
Note: IEC 60950-1/2005 specifies 100 M
± 5 M
in parallel with an input capacitance of 20pF ± 5 pF.
% e2 o! X9 t6 Y! I3 Y  r6 U/ iDecision:
# ]. p9 U  p; T. e( T9 dIf the relevant standard does not contain contradictory requirements, a voltage probe having an input impedance of 100 M
or greater in parallel with an input capacitance of 25 pF or less, shall be used for this test.
) e8 q/ _, e4 s: @2 C5 cFor other (automatic) equipment with special measurement techniques equivalent measures shall be taken to ensure comparable results.
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