DSH 716 Probe impedance for plug discharge test

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DSH 716 , |2 D/ I5 g8 [0 G+ E

Probe impedance for plug discharge test

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 * G7 b8 a$ J* V) u, [

Standard(s): No. Year
: m% t- t) u& e5 O8 f' NIEC 60065
IEC 60335
2 _$ S6 E9 A' U4 GIEC 60950
IEC 61010
6 ]* k% `% W. A% O) K2 o  S1 f+ any other as applicable
3 Y0 V0 T& V) j% W: [DSH-
. D6 W% O3 U4 U: `+ U( e8 J0716
  s0 B0 r, z2 m+ ?2008
0 V+ d3 Z: O2 H# P  i4 SCategory:
$ t# ^* Z! C" G4 P, O. c- RHOUS, MEAS, OFF, TRON,
, d  c, w- f8 g4 V/ }$ BVarious…
, o5 E4 D( Y& N+ v. _0 W* iSubclause(s):
9.1.6
22.5
8 _8 C$ O! f/ W, |2.1.1.7
6.1.2, 6.10.3
…
( D( X! v5 N& e4 r% a/ oDeveloped by: WG2
WG4
% b* c3 C3 X. w4 f, m* `2 zSubject: Probe impedance for
plug discharge test
Key words:
& |6 _5 r& U; m; a; n. `1 L- Probe impedance
  S" [; d, j6 A; f+ ^0 y- Plug discharge
- >= 100 M

3 f- Q, b; P; r, n% D; h- `! q- 25 pF or less
Decision approved at the
2009 CTL Plenary Meeting
! F9 A" j' Q2 b) AQuestion:
When the plug discharge test is performed using a voltage probe and oscilloscope for
/ v! q0 |$ p  y. p! y- n/ G+ Ldirect 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.
. _7 j9 X% D9 S% N* @8 ^Decision:
# h0 K/ ]  t7 R, YIf the relevant standard does not contain contradictory requirements, a voltage probe
. a. s) b1 @' H- Hhaving an input impedance of 100 M
or greater in parallel with an input capacitance of
- a5 ^6 |# G! h2 {) X25 pF or less, shall be used for this test.
For other (automatic) equipment with special measurement techniques equivalent
measures shall be taken to ensure comparable results.

: `- X4 I4 x) R3 Q; F4 ^/ N# E  g5 g