DSH 716 Probe impedance for plug discharge test

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DSH 716 1 h9 j: C4 G. S- g+ y( t5 r / L1 t5 x2 L- x5 Y

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

7 j* W3 o1 }8 S# S) SStandard(s): No. Year
" v! T( I9 J8 v/ u/ c* _8 @IEC 60065
% i* T) Z6 R7 `/ w! a8 P$ ^5 \IEC 60335
IEC 60950
IEC 61010
4 ~( @) w% w) V- r6 x, _$ w' F) z+ any other as applicable
  `+ C1 z: X! x, x9 ^3 A) xDSH-
! @6 m; A( c/ |+ ?$ A# _0716
2008
( R1 q7 @* c8 Y* c$ R# }+ Q, xCategory:
0 d7 U/ V2 l. }! U  R  |! A- X: kHOUS, MEAS, OFF, TRON,
/ P% @+ T" T, ^( o" OVarious…
$ {% V5 R) u8 P- c! u  L1 ASubclause(s):
+ o9 |0 A& H- P/ h9 j9.1.6
22.5
2.1.1.7
6.1.2, 6.10.3
…
Developed by: WG2
WG4
" `% s9 E' G, F( \8 p) G; ?Subject: Probe impedance for
) N: y; M+ e  Hplug discharge test
$ `% k8 j- A+ UKey words:
$ H5 D( j8 l+ B+ w- d- Probe impedance
& T! H* }% G+ h) F  V: m- Plug discharge
- >= 100 M

- 25 pF or less
Decision approved at the
2009 CTL Plenary Meeting
6 \& b9 J, v4 p6 pQuestion:
- B" ]: H9 U7 l0 uWhen the plug discharge test is performed using a voltage probe and oscilloscope for
9 M0 O' H3 \1 i9 u* c3 c2 c: cdirect measurement of the voltage decay, what probe impedance shall be used to ensure
uniform and comparable results?
5 X, Z: X5 N- c1 _7 P4 @% N9 B/ INote: IEC 60950-1/2005 specifies 100 M
± 5 M
in parallel with an input capacitance of 20pF ± 5 pF.
Decision:
# Q3 F8 X2 J% W: ?3 QIf the relevant standard does not contain contradictory requirements, a voltage probe
5 t: ?) ^4 v: r' T% p. t' `having an input impedance of 100 M
or greater in parallel with an input capacitance of
1 A' D: H; F7 t0 n" q25 pF or less, shall be used for this test.
. q6 g' R# D0 j$ i1 T3 S' xFor other (automatic) equipment with special measurement techniques equivalent
measures shall be taken to ensure comparable results.