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 DSH 716+ W) H: G" h# w3 [2 m# h. q1 Z; W
| Probe impedance for plug discharge test7 K0 e1 F( Q8 \: X, C# P+ Q
| 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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Standard(s): No. Year8 W9 q1 \+ e3 L& K2 m# Q
IEC 60065* n; m& h e% C( A- a3 c4 w8 M" f
IEC 60335
% w9 p, L: l. f+ MIEC 60950
9 L0 i$ ~6 R; s1 }3 v; AIEC 610101 ~. t- k Y' l/ w
+ any other as applicable9 D7 e. o! k; ^% i T
DSH-. T! ]- _7 }7 E) Q5 ]
07167 Y7 | U! H% i+ u6 o
2008
; \4 w, n& _4 n, @7 _Category:
: E) D8 _% C0 }9 y. J+ KHOUS, MEAS, OFF, TRON,, R- f6 }6 `+ `4 l! u% [* n: N. P
Various…3 C, m1 ~" u# K, G
Subclause(s): Y8 c$ l' l9 `4 e, K! \
9.1.6
$ P( O! b2 f8 G22.5
" `. F3 |1 ]2 R0 V) }/ _2.1.1.7
% @3 C8 c) h0 M5 V6.1.2, 6.10.3# A, C, l s, D0 _
…$ S. S0 T. T! n, t" i, f
Developed by: WG2: O" t. g& V) b
WG4
4 C# Y* B+ I8 B6 t' @Subject: Probe impedance for9 w: ^& w" i9 |& R
plug discharge test+ l$ q3 \$ d# I& p
Key words:4 W5 n ?$ t/ x: W
- Probe impedance! y; G) @9 G% s# i# \' @' i
- Plug discharge/ q+ I, _; B I6 }
- >= 100 M
. ?- p! u- s' p1 \" l- 25 pF or less) p; v4 V, A$ F! Y( Z
Decision approved at the
( z7 x0 r( E4 R2009 CTL Plenary Meeting8 M7 _6 q6 g' h2 d8 }+ Y0 B: n
Question:+ b( B6 J' g0 x, p
When the plug discharge test is performed using a voltage probe and oscilloscope for) J& i% i5 u6 R5 u& I2 R+ j5 u
direct measurement of the voltage decay, what probe impedance shall be used to ensure; }% _. @$ V* j3 P' R9 |
uniform and comparable results?
* v* e2 }5 {$ y) c. I5 HNote: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.
9 F. [' c. s* ?* tDecision:
: P7 _ F' m' m8 rIf the relevant standard does not contain contradictory requirements, a voltage probe# J% W) ^2 u5 ?8 v4 s0 G
having an input impedance of 100 M or greater in parallel with an input capacitance of- a( w' N S) l: m, l! y; T, n
25 pF or less, shall be used for this test.) d' G3 W/ J- M% m$ ]
For other (automatic) equipment with special measurement techniques equivalent
) A5 g/ o% \( h$ @measures shall be taken to ensure comparable results.
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