|
|
; z& Z! I5 [/ d; f" F0 n) X& [% g3 X7 N
| Probe impedance for plug discharge test3 c" P6 @1 k/ S6 @* G. T
| 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
3 u0 d* b' N8 O& N |
' P1 R. P( _% c
' X& D6 P; M A1 G7 x2 J/ y+ lStandard(s): No. Year
# l! u. |; y- r. Z" R' n5 RIEC 60065; o) M& E: _" I6 t
IEC 603353 b/ l8 O H% h& h
IEC 609502 b+ G2 a' ?7 `
IEC 610107 j3 x2 d- G) j$ n
+ any other as applicable
: F/ u; U+ X4 E7 _$ N6 {DSH-' A! V6 c L! P
0716) f7 `2 R) n I( i y! @" N, I
2008
7 _ I! x! G9 f/ G3 \; PCategory:6 V: V5 [6 k; k; Q6 u
HOUS, MEAS, OFF, TRON,5 _3 s) C% ]( |$ G- F1 P' x8 f6 y
Various…# x9 M$ z# h: |* F$ z3 O
Subclause(s):) K3 I5 Z$ D' A+ Q! l
9.1.61 k' C8 m0 m( U% C3 @
22.54 Z9 R6 [# b/ ~' y( z
2.1.1.7, @! B6 V# f1 l
6.1.2, 6.10.3
5 t s1 o7 K0 I0 d…
4 C1 `* G5 [6 ~/ y- s& M# cDeveloped by: WG2% V, Z( e+ Z2 p7 q) Y" b
WG48 L0 @7 g3 c& J2 }5 L0 ~
Subject: Probe impedance for; Z% I, W4 w5 i* l" e1 u# i
plug discharge test1 x0 d. [, h& }; h5 w9 g, \+ V% b
Key words:
1 _! ]* P* e: T' @2 U( `- Probe impedance- U! W; v+ G/ ~
- Plug discharge, s0 a' @1 E$ Q% E" D, ^6 M
- >= 100 M
4 c Y) S7 f) q. R- 25 pF or less
- \. e k. u' R6 B) PDecision approved at the5 X. [8 Y8 S2 x9 H7 A# h7 g& d- ]
2009 CTL Plenary Meeting: g; \; `. F4 h/ v, [7 a2 e
Question:
Y4 O3 @( W. N& A3 ~When the plug discharge test is performed using a voltage probe and oscilloscope for. P- b( h8 r5 y
direct measurement of the voltage decay, what probe impedance shall be used to ensure
t8 T, l7 p+ |( d; |: G' r; P: [ luniform and comparable results?
: e" n" z% @) m6 ]+ |Note: IEC 60950-1/2005 specifies 100 M ± 5 M in parallel with an input capacitance of 20pF ± 5 pF.
* }1 k6 I- x3 I1 N) ]Decision:
6 s5 V( G6 o, L: O4 `* E0 t+ iIf the relevant standard does not contain contradictory requirements, a voltage probe
& M) n1 r* b0 C" e/ jhaving an input impedance of 100 M or greater in parallel with an input capacitance of
- q. K9 Z7 h6 W ]25 pF or less, shall be used for this test.1 N3 L' q; v. _1 p
For other (automatic) equipment with special measurement techniques equivalent
* d& ]" Q G+ cmeasures shall be taken to ensure comparable results.) H$ }7 J3 }! Y) d
v n q0 ^1 B! w: n5 e- K+ k2 R2 Y1 Y4 b' g& I
: |; J8 @) ~$ h! @, d W4 Y* I w
|
本帖子中包含更多资源
您需要 登录 才可以下载或查看，没有帐号？注册安规
x
|
/2 
|关于安规|小黑屋|安规QQ群|Archiver|手机版|安规网
( 粤ICP13023453-10 ) 
窥视卡
雷达卡
发表于 2012-9-18 11:27
收藏
分享
好帖
鸡蛋
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
抢沙发
千斤顶
显身卡