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标题: DSH 716 Probe impedance for plug discharge test [打印本页]
作者: 小米    时间: 2012-11-8 17:03
标题: DSH 716 Probe impedance for plug discharge test
DSH 716, a& D: e, c1 U, B* J2 F
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Probe impedance for plug discharge test0 a" I  U+ y6 @! g' k+ J
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 applicable7 y- m6 }1 N3 ^( q( q/ ?/ G
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Standard(s): No. Year* q7 z% O2 a( P$ Z& ~# l; ~8 H& `
IEC 60065( z0 S0 W  m1 Y4 ^0 `1 i
IEC 60335
4 N+ M, Q! i3 MIEC 609503 f, A6 R+ b9 [6 \
IEC 61010
. d$ x& z- W! W! l+ any other as applicable" p/ o* z1 t# B
DSH-$ {! `: _2 Z& R, k* W; ^
0716
9 W6 p6 \7 _# P- |" W2008
. s: Z+ ^  m  m+ _5 E- iCategory:
$ m9 n5 `: \- K9 c1 LHOUS, MEAS, OFF, TRON,
" v3 d0 f9 W$ W* t, V* O1 }Various…
! y  U  `; j4 d6 @2 @Subclause(s):
; |% L5 |. a3 {! M0 X9.1.6' ~9 Q  o1 Y/ z5 _0 B
22.5# |! ]! D% P  W2 f# i
2.1.1.72 X; }9 \  L$ |
6.1.2, 6.10.35 S  b5 O6 o3 o
…
" Z9 i+ {2 _1 @9 UDeveloped by: WG2  P$ L4 \( S2 @- C
WG4
2 G$ S' s4 h2 Z6 b0 o; eSubject: Probe impedance for4 I0 N  F. e0 L
plug discharge test
+ j. u0 S4 B) M$ c8 I! S$ UKey words:
. w  N% e5 W/ h- ?1 ~/ b- Probe impedance% ]7 P& i# T4 U1 B
- Plug discharge  J9 s* x! ^9 ^5 M% |* O& M
- >= 100 M
5 ]" G: H6 v6 e' V, J, W- 25 pF or less' g4 d0 s' m6 |
Decision approved at the
/ c, |3 b! H$ x2009 CTL Plenary Meeting
6 S9 K9 v  A; t4 vQuestion:
4 V# K- r8 r* |When the plug discharge test is performed using a voltage probe and oscilloscope for, d; b5 d" ?5 {0 |
direct measurement of the voltage decay, what probe impedance shall be used to ensure
; \4 x) G2 J" _& @) O& euniform and comparable results?
$ {5 N- {1 L6 C. I0 @: WNote: IEC 60950-1/2005 specifies 100 M ± 5 M  in parallel with an input capacitance of 20pF ± 5 pF.9 p' o/ p$ ]# Z4 w
Decision:
' N/ {" Q* d8 q* u; K8 qIf the relevant standard does not contain contradictory requirements, a voltage probe: m" X9 N* B, V$ r* \2 Q
having an input impedance of 100 M or greater in parallel with an input capacitance of+ u' b' h' F8 `
25 pF or less, shall be used for this test.: y, T2 X" T1 v" n
For other (automatic) equipment with special measurement techniques equivalent  {( n3 p- ^% G; x! L
measures shall be taken to ensure comparable results.
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