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| DSH 716
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' H$ Y4 Z, ]: z9 L | Probe impedance for plug discharge test7 B, @; w, k& 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. Year: L2 B( ]7 g) x9 n: N8 Y
IEC 600656 N4 S, a% e9 A* j" i& E0 r5 u
IEC 60335
' ~6 ^+ n% I% s- B A* KIEC 60950$ h9 `+ f- T: {6 E& k i
IEC 61010* g8 J! a6 e( e1 P# r
+ any other as applicable
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0716; u0 {1 [6 ?( P! v
2008
9 V5 Z" v- r8 D+ `- C' UCategory:
! ]+ H% t$ q7 ]" B5 BHOUS, MEAS, OFF, TRON,
' p' X- `3 Z" B) e) T, O1 f7 vVarious…
4 l& c5 d% M. {3 a( `; R* nSubclause(s):, r: L/ X: P$ n( k8 P
9.1.61 V* c+ y! `; M6 W! T3 M4 b
22.53 ?/ q7 Y' F' _3 ^( p8 Q
2.1.1.70 M% h- y' U2 y. F! A+ s( c
6.1.2, 6.10.3
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Developed by: WG2
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Subject: Probe impedance for
, H$ @8 B, d+ r: e; t# Xplug discharge test
& P' J$ \9 c7 E+ o. N4 a/ F YKey words:+ @6 n6 T% k, i) q
- Probe impedance, x. `( w- ~% f5 g3 D* b
- Plug discharge. M1 m! d' [6 J2 E: E7 _- I* o
- >= 100 M
9 H! ~0 S$ `- K( u+ K7 ?" X- 25 pF or less4 g! j7 N/ c/ n7 [# T& {& d. d
Decision approved at the* y8 i/ i6 \: F$ s- Q
2009 CTL Plenary Meeting7 ~; m" A0 G* p( i% j
Question:( q: j/ c9 J" q8 R f
When the plug discharge test is performed using a voltage probe and oscilloscope for+ ^" B# {' o/ d" d' w* q O. B
direct measurement of the voltage decay, what probe impedance shall be used to ensure
' N( I+ P3 Y' v3 H) funiform and comparable results?3 I N$ e7 j+ {7 a) T$ O$ x
Note: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.# i# l& X6 C, k+ E) M
Decision:
2 r& K# p0 }7 z: o7 M/ F! jIf the relevant standard does not contain contradictory requirements, a voltage probe
; z& n+ f% B0 q" Y) e2 _$ Bhaving an input impedance of 100 M or greater in parallel with an input capacitance of
( X+ h) i* M; X/ D# I2 g5 q25 pF or less, shall be used for this test.
; |1 c4 V- N# u( \For other (automatic) equipment with special measurement techniques equivalent6 k/ R9 H d& w0 E; Y
measures shall be taken to ensure comparable results.% d. Y! S" |' N4 E
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