DSH 590 Rule for creepage across grooves and similar surface discontinuities

小米

广东安规检测
有限公司提供：

小型摆管淋雨试验机

IPX5X6X7喷水试验机

1000L恒温恒湿箱

各种试验指现货

可程式恒温恒湿试验箱

水平垂直燃烧机

自动卷线器试验机

耐划痕试验机

各种灯头量规现货

灼热丝试验机现货

GB1002插头量规

IPX1-X7淋雨现货

IEC61347/UL935镇流器热试验箱

灯具防风罩

IK冲击试验机

UL498插头插座量规

VDE0620插头插座量规

稳定性试验台

家电温升测试角

针焰试验机现货

热电偶焊机现货

家电125mm试验指

E12灯头量规

无绳壶无绳电熨斗插拔寿命试验机

IEC60335试验指甲

DSH 590 + W- z! P- `  ?* | 1 I+ V* h7 m& s( u. z, h

Rule for creepage across grooves and similar surface discontinuities

IEC60664-1: 1992 cl. 4.2 IEC60335-1: 1991 Annex E IEC60335-1: 2001 Cl. 29 IEC60730-1: 1999 Annex B IEC60950: 1999 Annex F IEC60950-1: 2001 Annex F IEC60065: 2005 Annex E IEC61010-1: 2002 Annex C IEC60601-1: 1988 Notes Figs 39-47 IEC61558-1: 1988 Annex A IEC61058-1: 2000 Annex A IEC60598-1: 2003 - IEC60745-1: 2001 Annex A IEC61008-1: 2002 Annex B IEC60947-1: 2004 Annex G * [$ m( K# e+ p* P" g8 Q- M

60335-1(ed.4) & 61058-1(ed.3) & 60598-1(ed.6) & 61010-1(ed.2) & 60950-1(ed.1) & 60947-1(ed.4) & 61008-1(ed.2);am1 & 60065(ed.7);am1 & 60664-1(ed.1)

! K4 j. m1 m- P7 A% V9 m$ EStandard: IEC 60664-1/1992
IEC 60335-1/2001
IEC 61010-1/2002
0 ?- R2 i8 P1 X  l  }) XIEC 61058-1/2000
IEC 61008-1/2002
4 [% g, \4 w3 d6 |IEC 60947-1/2004
IEC 60598-1/2003
0 {. v" \3 n, q; g) P5 a2 h" oIEC 60065/2005
5 j" V/ n& K9 {. A$ L; p) b/ qIEC 60950-1/2001
8 x4 l  y5 v( ]+ hSub clause:
See Table below
' r/ f7 l3 w! b+ X' E6 z# dDSH N°: 590
Page: 1(1)
; ~  T1 Q3 u9 L( kSubject: Rule for creepage across
  G: x# R0 j8 {+ B( Z6 o) ggrooves and similar
surface discontinuities
% Z& l8 G2 i9 o3 ?4 {$ {+ d1 S' iKey words:
) I) X! z% m9 V) i: Z; a- Creepage
' U- ^; G. ^; ~, a/ |/ K- Grooves
- Conducting path
6 |% R6 L+ M8 `/ \! ^. i- Shortest distance
, W1 E5 ]/ i/ G7 Z- Through air
Decision approved
4 r: {1 p$ }. Y- X# Cby the CTL during
9 v& k$ P) G4 eits 43rd meeting in
4 W' r, s) i/ ?0 i, X; y' G1 nJohannesburg
" x( `0 O, J! Q4 LQuestion: As can be seen from examples 2 and 6 of IEC 60664-1 sub clause 4.2 corners
with angles greater or equal than 90 degrees are not bridged. IEC 60664-1 does
! K. c* M0 M' x' L. U3 Pnot contain specific information at which angle less than 90 degrees bridging
shall be applied. Some of the above mentioned standards specify that bridging
' ^+ J5 o4 n! L. E- {shall be applied for angles less than 80 degrees.
5 Z+ [( y7 g. o$ O0 c$ qCan this 80 degree rule be applied in general for all standards?
- w$ i0 Z; p: IDecision: Yes. The 80 degree rule shall be applied in general for all standards.

& u! S+ {8 I7 p& |3 ~8 W: t- v