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|  DSH 716 [: A7 }& i" @' U( Q, D$ V8 r
; ?) }& y# R5 ~ ? | Probe impedance for plug discharge test
( W5 U: L2 F& E& R# ~ | 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
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' x6 [* i% N `* m" B+ e oStandard(s): No. Year" @4 c4 b, R; } W
IEC 600650 c5 C$ D! v, x5 N3 O, G* J% c
IEC 60335
8 g6 e' x$ n$ s7 x8 {) X* ZIEC 60950
) X" b5 X1 S( b6 nIEC 61010; y5 e% S! w4 A7 A+ w* E
+ any other as applicable0 R: _& Z' `3 i! `! `
DSH-
( L# N3 d: p- e0716
: U2 T' n' c. j1 E9 S2008, }- }3 Y! r3 ~% Q% `" g, e+ l. M
Category:
9 @) u6 r9 f- ~# {* b( t& W# oHOUS, MEAS, OFF, TRON,
# s& H7 Z, s" K6 V3 Z0 n0 g3 _2 _1 v7 }Various…
: J2 H, k, n( {Subclause(s):5 Y1 o7 o* A! y2 u
9.1.6
# h: f/ v9 i5 q3 o22.5
8 n6 g1 ?2 D$ ?2.1.1.72 o* E9 D, D# ~) W: H
6.1.2, 6.10.3+ |. C+ @' k) B. Y/ U
…% O& b1 n6 c( Z6 N3 j; Z8 ^7 N0 G# ~
Developed by: WG2
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Subject: Probe impedance for! f B, g1 D! k& t- f* K
plug discharge test# n! j, l: X0 m3 ] N' K
Key words:
# a1 h! e; x- m$ y5 O2 w/ ^) @+ x- Probe impedance
1 d) _. a2 p. X& v- B3 K" f8 \- Plug discharge
H" c( V& d2 [/ S- >= 100 M
1 _" f+ j' d# B- ]: R2 q; v; K# O- 25 pF or less
: @/ F. A0 r8 }Decision approved at the
( z) e+ x' @% ]2 p3 X2009 CTL Plenary Meeting
" o8 y6 y4 A: p5 d: aQuestion:9 w8 X( A# w4 m9 R) D4 `+ M9 W- h
When the plug discharge test is performed using a voltage probe and oscilloscope for& a L4 b- H# T+ Y+ m
direct measurement of the voltage decay, what probe impedance shall be used to ensure' |, W- d& ^( G; ~
uniform and comparable results?
4 m0 w& \; x+ bNote: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.# O$ \9 c- T1 S
Decision:9 k/ i$ t8 I) | t$ y5 v
If the relevant standard does not contain contradictory requirements, a voltage probe2 F5 f( i( E! B$ D/ k! N9 M
having an input impedance of 100 M or greater in parallel with an input capacitance of
8 m" \# y+ i) ~* F% F" C' U3 J25 pF or less, shall be used for this test. o6 e5 l4 q9 A& F- J
For other (automatic) equipment with special measurement techniques equivalent- z7 }3 b$ ~! Z* w$ S) I* k
measures shall be taken to ensure comparable results.
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