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|  DSH 716
4 W* H6 V3 A5 b9 J8 V/ _7 p0 e4 b+ I2 E3 _7 |6 r& @
| Probe impedance for plug discharge test/ `' d' q5 a+ d( U3 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 applicable+ n) c7 v$ Q* D- y7 V5 K
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# L1 m8 `+ Z) C2 eStandard(s): No. Year/ Y* f' P* m! t
IEC 60065; ?2 H% b! j' a$ ]' C) M' ~* V
IEC 60335
% Z( e6 w9 d, ^, x7 gIEC 609509 Q2 ~3 I- s( q. J! j6 e2 O
IEC 61010; S2 y, U/ c" |
+ any other as applicable A+ `4 U. o5 f- w
DSH-
0 \6 ], S- a. u# W3 z0716, v4 b! Q& l6 x
20086 w' `$ C% n0 I9 [" }
Category:
2 a. @+ D. v( o1 R/ f! Z7 H$ aHOUS, MEAS, OFF, TRON,
. l# s! f2 W+ }' c( M3 eVarious…7 y% x3 m+ }1 O
Subclause(s):
$ g+ Y; O% E2 r( j; P3 n. X; o9.1.6
& Z8 r5 G! m6 N7 A22.5
) u" D: X2 [+ J. u6 {2.1.1.7
) @% D# x8 h9 u( u5 y* [3 z6.1.2, 6.10.3
* ~* [7 Y7 D+ }7 F…+ M' G9 M3 A/ L1 v4 R1 M0 }+ j
Developed by: WG2
0 l1 |- B1 ~& r/ h" b7 c- aWG4# |5 ^2 d2 q2 `4 ^0 i
Subject: Probe impedance for
# ^, H: J. h7 U& @1 c2 nplug discharge test
# |" U7 ]; x! d9 P J2 vKey words:! G4 W9 A8 T: s1 {* C" b+ B
- Probe impedance5 c1 R8 Y$ _2 ~! L0 F# B
- Plug discharge
7 C' L5 H7 y; G' n9 a9 V1 h- >= 100 M- R9 l' k- Y8 K; j, a% s
- 25 pF or less
' B2 k {" ^* z9 j' Z. N) xDecision approved at the, P: ~2 G2 c, Y2 {% F5 p9 H
2009 CTL Plenary Meeting$ ~) M9 x' O0 f3 T
Question:" W( ]# i2 |; @7 q& K
When the plug discharge test is performed using a voltage probe and oscilloscope for. C6 q; o: E: O) b4 U; l! L3 g
direct measurement of the voltage decay, what probe impedance shall be used to ensure% P4 U4 m! T* o3 p3 m
uniform and comparable results?
1 R6 A: u3 D1 @5 Z6 ONote: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.
1 |# Y9 Y/ R: lDecision:" h. f7 p: d3 l% {0 Q" O
If the relevant standard does not contain contradictory requirements, a voltage probe
: @- l5 s7 t) M% Ahaving an input impedance of 100 M or greater in parallel with an input capacitance of& z0 F9 {" J z; r/ |
25 pF or less, shall be used for this test.
) r6 y6 h9 h# C0 ?* G) u& iFor other (automatic) equipment with special measurement techniques equivalent
6 z3 m( }. _! b! Lmeasures shall be taken to ensure comparable results.
4 |3 k, b4 h. s2 C9 a& z
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