DSH 716 Probe impedance for plug discharge test

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DSH 716

Probe impedance for plug discharge test , |/ W6 x# G3 [" m+ V2 l/ ^: 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

Standard(s): No. Year
  @3 `6 [  t% @* J) k5 B" }0 ]IEC 60065
IEC 60335
, r5 j3 \5 {$ x" O) EIEC 60950
IEC 61010
$ S8 {% X' r/ L! V! \+ any other as applicable
5 [/ D5 G. M4 M1 C6 \! n! yDSH-
0716
2 x: _- m  s. U2008
Category:
& J! @0 d' o2 F2 B1 DHOUS, MEAS, OFF, TRON,
Various…
Subclause(s):
  ^3 l$ H) k/ |6 [/ x1 U# {) o9.1.6
22.5
3 A9 b& _0 x$ O' `6 ^& S5 J, a2.1.1.7
6.1.2, 6.10.3
…
Developed by: WG2
WG4
Subject: Probe impedance for
plug discharge test
' W  a+ n  E0 A, ~. W& J2 ?Key words:
/ w/ Z7 _& K* D, M& }, Y- Probe impedance
- Plug discharge
- >= 100 M

; z1 D1 M0 L9 O: s- 25 pF or less
Decision approved at the
! T/ Q7 u6 i1 v+ \( [' }2009 CTL Plenary Meeting
Question:
* [; Q6 ~, `- Q4 OWhen the plug discharge test is performed using a voltage probe and oscilloscope for
. W, L3 A3 r: hdirect 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.
$ F0 e5 K+ f  N5 r6 pDecision:
) ~9 l$ q( f1 V5 |+ W9 ]) K$ T' I( Q5 cIf the relevant standard does not contain contradictory requirements, a voltage probe
. r" s: x; z8 q# j0 F4 B. v( \: }having an input impedance of 100 M
or greater in parallel with an input capacitance of
- i1 j+ Z2 ?: [+ y3 \3 A25 pF or less, shall be used for this test.
+ l3 R5 b5 ~6 @. `( H4 y" _3 [For other (automatic) equipment with special measurement techniques equivalent
measures shall be taken to ensure comparable results.
* u$ V, J! ?, c
8 ?2 T( g, r( {" g* y9 U2 T- J% P

* H* f4 ?: @$ r  a4 {: T