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|  DSH 716 E6 y6 t3 [' ?
* z6 J% p: U: U9 l+ U" H* F2 p$ G | Probe impedance for plug discharge test: ~# g" {. N# r0 H
| 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
% P. g" r# a: U" I' } |
3 G% t1 |5 w1 ~0 @/ sStandard(s): No. Year4 v' {0 w, O) \/ ~3 K- ?3 _) g. e
IEC 60065$ E" \" y; h5 C( k& ^8 Q* \! y
IEC 60335
( \: s1 r. n/ i. IIEC 60950' t" u1 V" F; j- _+ \
IEC 61010
9 S9 U6 V7 ^ b) |: l+ {+ any other as applicable% Z% E2 l- i; j2 d' |0 M$ w
DSH-
( x* d) F# }2 c0716
4 t: Y; ~' x+ G7 m20085 m/ ^ z) Z5 k
Category:, m) H' q2 N; Q, R" K* f% @8 ?
HOUS, MEAS, OFF, TRON,1 v' Y" A: S. B& s5 X7 D
Various…8 Y6 o, y& M7 r3 \. y3 {9 [/ f6 B
Subclause(s):2 [6 l* s+ S; M. U: N, k
9.1.6, n- F" Y* i7 A7 T
22.5
5 D9 y3 }' }: X% M' Z2.1.1.7
, v& H' z/ I# B' R9 ^- b G6.1.2, 6.10.3: B- M, |& T6 c# O4 E
…4 B, U# [. ~" z0 x- d8 l
Developed by: WG2. r2 Q. s8 X9 ~$ J
WG4
4 e+ b: M: O# d9 @$ k. xSubject: Probe impedance for0 m, S: M3 {: E4 e c
plug discharge test
e: t$ S0 v6 E. ?Key words:
3 g5 e3 @; M; b& A- Probe impedance4 Z V( _: ~$ F; v
- Plug discharge
/ R" S6 n: _7 H+ E, d- >= 100 M! B4 d% b. r7 z( s- J& V6 v
- 25 pF or less
: W- x# b/ q- T7 P9 Z+ k3 f: I XDecision approved at the
6 @7 u1 F& g9 q- ^4 V3 _2 R$ {# q2009 CTL Plenary Meeting
- |# H2 o( j2 v- V* j) W( fQuestion:/ ?; w( c: t8 y! p
When the plug discharge test is performed using a voltage probe and oscilloscope for
7 s; g& J4 G$ I0 M9 @direct measurement of the voltage decay, what probe impedance shall be used to ensure
1 f1 B9 i9 z' H6 funiform and comparable results?3 |; u3 p. d+ p2 S& K9 S
Note: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.
3 \; w+ m1 V* K2 bDecision:* L' u8 g& O# z: ] M; {
If the relevant standard does not contain contradictory requirements, a voltage probe
( i0 [, t8 G& S0 N" d0 }' L* V& Hhaving an input impedance of 100 M or greater in parallel with an input capacitance of! h3 v" V5 ^! e1 [+ M9 y
25 pF or less, shall be used for this test.& }% k4 ~. a' b
For other (automatic) equipment with special measurement techniques equivalent" V' Z5 k' z" p+ ~1 F
measures shall be taken to ensure comparable results.; B3 E/ v% N3 \( v" O0 f
0 z: L" z6 `! e& @- R2 v
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发表于 2012-11-8 21:03
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