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| Probe impedance for plug discharge test
! g- ]1 h( L# E- X | 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& G1 h5 X6 }- a2 R
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) ]1 j2 t K! @$ |Standard(s): No. Year
( v4 [: {8 h- w3 hIEC 60065
- h# M4 L* J' D! R0 u' I$ C# N$ GIEC 60335
- @# a9 I% c3 e( {, {+ sIEC 60950 K- m, v7 i6 U+ j4 z Q
IEC 61010
w* o) I I9 e- ^. @; w+ any other as applicable" T/ E8 a7 V2 k" B. ^
DSH-
3 W; ^: O- U5 f7 U( y8 G' J0 S1 H0716
/ D& i& Y$ d" c/ e2008* O- _( x/ b: z+ e
Category:3 a4 t# p- q; ?
HOUS, MEAS, OFF, TRON,
9 m) U7 V7 n6 _. uVarious…/ k0 j* J! A( Z1 ]3 G
Subclause(s):
3 I* V) S, P$ S9.1.6
( `* w& v3 [: W% Y3 {22.5' S. a/ g) D& F; }5 i; I
2.1.1.7
" J0 Q0 f2 a' p% k6 [" Q6.1.2, 6.10.39 U# i: {( H3 Z3 N; e5 \
…
. D2 s; {, {6 A& o; C: uDeveloped by: WG2; m4 L: `, U) d4 x* z/ f9 |
WG4/ \1 e: v9 h' g& [3 p3 t" S
Subject: Probe impedance for4 F7 G, S: B, K/ B
plug discharge test' {* C5 v9 Z+ ^; l+ w
Key words:2 L/ d7 K9 `& S& b& I; u1 j: }
- Probe impedance4 l! j6 M/ |: y4 O4 y; Y
- Plug discharge
- E# x* D) A# {- >= 100 M f4 l* ^# ~3 l2 Q
- 25 pF or less
$ I" Z y. _$ c' a5 t, dDecision approved at the
- _& a" Z1 u* Q8 {2009 CTL Plenary Meeting
/ S) X d" w$ p4 }# k& Z5 WQuestion:) z, Q) p% {' _; M
When the plug discharge test is performed using a voltage probe and oscilloscope for( q3 h! a* _/ D1 H7 Y# W
direct measurement of the voltage decay, what probe impedance shall be used to ensure
" M! ?8 z, C# g/ ?; auniform and comparable results?
) U7 u) A( I$ J0 gNote: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF. L) L% i! W7 k& I& [
Decision:
$ u# N9 L0 T$ i4 O$ f C* HIf the relevant standard does not contain contradictory requirements, a voltage probe
% n( j. s$ E9 v+ C" v# V# Ihaving an input impedance of 100 M or greater in parallel with an input capacitance of) g8 f$ s4 a) n0 Y
25 pF or less, shall be used for this test.
8 K ^% X. V6 G5 z$ D; L2 w" dFor other (automatic) equipment with special measurement techniques equivalent5 N7 {/ d l: G3 S. v7 w
measures shall be taken to ensure comparable results.7 Q2 q2 o3 d- K
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