DSH 716 Probe impedance for plug discharge test

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DSH 716

Probe impedance for plug discharge test ( y- C2 _1 p/ }' A- T8 u

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 ; t5 o4 s5 v& P$ Q" K, O0 C9 H# J

, o9 N3 q) C; V* I, _2 v5 QStandard(s): No. Year
) ]" c( _7 i. o! nIEC 60065
IEC 60335
; z1 ?$ O2 n/ j$ XIEC 60950
6 v0 w. d* t& @/ ]IEC 61010
+ any other as applicable
DSH-
! ?0 e; `  \0 `" E0716
2008
Category:
HOUS, MEAS, OFF, TRON,
% R9 f' Z9 d6 [9 O) d7 w0 \Various…
Subclause(s):
+ d5 m$ y. o; z$ x# O, }9 b9.1.6
22.5
' X$ c' g3 r7 S2.1.1.7
6.1.2, 6.10.3
…
: B  j! ?8 N" s# H' F' o/ O$ CDeveloped by: WG2
$ Q# p7 B& n  cWG4
! J2 u& C% f/ rSubject: Probe impedance for
6 c3 p. R2 d5 ?# ?+ `plug discharge test
Key words:
- Probe impedance
3 c. w5 `: ?8 ]3 o- Plug discharge
) x  v, I1 _0 u8 i+ l# p9 m' i  \- >= 100 M

0 Y% i( {% d5 @- 25 pF or less
Decision approved at the
1 W- g" _4 f) L% Q2009 CTL Plenary Meeting
5 H6 N7 K0 i$ N/ o$ n# Y  iQuestion:
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
1 A) ^1 x% N# I1 Vuniform and comparable results?
Note: IEC 60950-1/2005 specifies 100 M
± 5 M
in parallel with an input capacitance of 20pF ± 5 pF.
5 t3 E+ i( Q$ x, s( BDecision:
& l+ V, v9 U. v; [If the relevant standard does not contain contradictory requirements, a voltage probe
+ b0 W0 p% T1 q" {$ x3 h4 ?/ zhaving an input impedance of 100 M
or greater in parallel with an input capacitance of
5 t: p6 Z; I' Y7 ^+ Z0 _25 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.
* @8 B: m  Z% Q! }$ s7 g
7 s( J9 C, D3 s4 ?