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| Probe impedance for plug discharge test
! x8 m/ d9 {( V* K4 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 applicable9 ~5 m' P& C6 G, X4 P3 ]# b
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Standard(s): No. Year
. P! c7 i8 m+ V- |2 mIEC 60065% _: I+ Z" E' k# C2 F8 Q6 e& r
IEC 60335$ U' \, ^, a J- }" ]
IEC 60950/ f6 E, s2 e% x( a2 p; j% |
IEC 61010& D/ J/ ~: f8 S7 i" [ c) z! D4 U
+ any other as applicable
3 X* `1 Q4 _7 U7 MDSH-
+ ?, r6 L8 M5 O, g) B0716* U7 d9 h0 L! _# c; j0 l. t" Z% L
2008
$ w: F! m- ~8 w3 B% W- aCategory:0 l% r6 D" u$ X; _/ r
HOUS, MEAS, OFF, TRON,
* C% i: e, t% w# T; z5 }( T% CVarious…$ z$ O# u' y" O2 m' w
Subclause(s):
5 P. r: j# k B! q6 i2 p5 b: p! M9.1.6
7 S/ \( d0 [7 d, w4 p/ \6 {6 A22.5+ t1 W% W2 ]& F
2.1.1.7$ L3 I: t) a0 x) c2 F7 Z% G
6.1.2, 6.10.3/ Q# e* u! W* ^. h1 K$ J; e
…
4 w8 m; m0 R1 Y7 p( P2 p5 kDeveloped by: WG2
: W9 O6 X8 u) z3 t6 j9 l. [3 M+ iWG45 t" g; D; s* o2 p7 m
Subject: Probe impedance for: v+ K, W! J: t2 i$ p7 S- j @
plug discharge test
6 j$ S5 r9 R$ W/ wKey words:" V. T* r. |6 v- ?) q
- Probe impedance
4 u9 n' P& `" c- Plug discharge
% {0 x8 \" M1 M0 i6 _- >= 100 M% E; {, y. G: a8 m" q; J$ O
- 25 pF or less
$ u9 x, E4 G# c5 t1 `* H0 R2 ZDecision approved at the' h; p# n; i: M- `
2009 CTL Plenary Meeting
* G# O* S: e7 v' j7 r. t, q0 x+ [Question:
6 V- @' n5 C9 p1 G6 s& o+ yWhen the plug discharge test is performed using a voltage probe and oscilloscope for
, u3 b% B* L- {direct measurement of the voltage decay, what probe impedance shall be used to ensure
9 p! k% x8 h) H) ]uniform and comparable results?( M% K5 b8 _. z0 r8 v
Note: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.
9 p# T, U% l3 u4 K9 e) {Decision:- W& A- b2 }9 \' D& ^" g
If the relevant standard does not contain contradictory requirements, a voltage probe
8 L7 M$ Q$ H( m' N" Ihaving an input impedance of 100 M or greater in parallel with an input capacitance of
) d5 \4 u6 Y3 E4 D25 pF or less, shall be used for this test.
) ?2 l; _1 A( o- V2 R. v1 gFor other (automatic) equipment with special measurement techniques equivalent4 O8 }; k) ?) v4 J- o8 T8 {1 `
measures shall be taken to ensure comparable results.
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