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标题: DSH 716 Probe impedance for plug discharge test [打印本页]
作者: 小米    时间: 2012-11-6 13:45
标题: DSH 716 Probe impedance for plug discharge test
DSH 716" q2 H$ w1 m  X3 e! O3 {4 b$ Q
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Probe impedance for plug discharge test% }3 G$ t& P0 C
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 applicable0 v7 T8 T! Z- i4 }, \

& ?4 e# y3 h7 dStandard(s): No. Year
  _; |% i+ _/ U/ SIEC 60065" s0 h7 F( Y/ X
IEC 60335
; j# P: V5 d( l* X* ~IEC 60950
# b) t6 z$ g/ v) yIEC 61010% e4 R1 P, J* z  ^( y& R
+ any other as applicable: e: T: ^+ T5 O/ @9 [% w9 j
DSH-- g% h* N: v: z3 S- c# `- q5 V
0716
  g8 Q1 A8 s2 d% i2008
4 k" `( ?7 I) A- e( ECategory:- p! y" F) {4 F9 D1 [
HOUS, MEAS, OFF, TRON,% v3 ]4 A; s( X, v, D( {
Various…
3 i" Y7 {; ^# r2 ]# R# P( dSubclause(s):
6 t9 I7 Z' n' h, i6 W& ~/ Z9.1.6
" N# l8 I2 j# w( _9 N22.5
9 v( d5 t: i7 I2 Z& @% g6 F2.1.1.7% Q8 Z! w* u1 A
6.1.2, 6.10.3
3 c$ a% x2 w+ \* v4 G& y8 u…; O* J8 [( o* \: l9 V
Developed by: WG2
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Subject: Probe impedance for( ^: W! k- C6 j7 s
plug discharge test& [3 B$ Q4 W6 X; K9 O, Y
Key words:
5 a# `* s* U: c& b+ x: t. |1 Z' w& s- Probe impedance
4 x1 W  h1 \' u; t5 O4 x- h, G, x- Plug discharge
$ ]' [# s1 _$ s7 z- >= 100 M: G% F2 R, o+ d" M2 @
- 25 pF or less$ @& V! ]  t& M
Decision approved at the! R1 i0 C! m4 v) F( b& n6 f
2009 CTL Plenary Meeting6 b+ D, z1 b. L8 ^& s+ j: M
Question:
2 v4 C" s1 B9 L; ~7 w' ^1 fWhen the plug discharge test is performed using a voltage probe and oscilloscope for) p$ G5 e! L5 h0 G8 r( L. q
direct measurement of the voltage decay, what probe impedance shall be used to ensure
/ C: Y( z* f9 @  W, A8 `: runiform and comparable results?
+ R. l+ t+ f3 FNote: IEC 60950-1/2005 specifies 100 M ± 5 M  in parallel with an input capacitance of 20pF ± 5 pF.
+ Q5 {! D/ L: E1 lDecision:! E- v4 z% V: E6 m1 U# V! O
If the relevant standard does not contain contradictory requirements, a voltage probe
9 m- |- m. {9 v) m+ K" g5 |% ^! hhaving an input impedance of 100 M or greater in parallel with an input capacitance of6 p; O; G4 a* E/ [5 S2 u
25 pF or less, shall be used for this test.& |1 U8 Y8 B/ T4 k$ ~8 F4 a1 i3 G
For other (automatic) equipment with special measurement techniques equivalent: s( n9 ^: x! s' v: H( v5 s
measures shall be taken to ensure comparable results.
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