请教下PCB中关于电气间隙和爬电距离的要求

海之未央

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

据说还要考虑走线的~~~~暂时手头还未用新标准考虑这个问题~~~

deficit

有没有什么地方有给出60950新旧版本区别点的？
) ^: a' s- x/ {- ?% ~) t" U因为好像目前GB还是按照旧的60950

海之未央

Differences between "IEC 60950-1:2001" and "IEC 60950-1:2005"
? : Level of importance (0=not, 3=very) Page 3 of 20 Document date: 4-Apr-2006
Subclause Change ? Comment
! o2 ?) i" _/ r) X% [3 ^7 UForeword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
! f3 o1 m4 u; Y- w2 U" lyet (Mar-2006).
1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
- e+ `: s( E2 |incorporation in ITE.
1.1.3 Modified 1 "Support systems" were deleted from list of excluded examples.
1.2.2.3 New 1 RATED RESTING TIME replaces subclauses 1.2.2.3~5 (CONTINUOUS OPERATION,
0 _9 R& U  K" B! ?3 t, mSHORT-TIME OPERATION and INTERMITTENT OPERATION).
1.2.5.3 New 0 PLUGGABLE EQUIPMENT as definition covering both pluggable equipment types
& A+ q9 Z. Q8 |5 m% f" V0 \# OA and B.
( p% n# }4 I& r0 {1.2.8.3 New 0 MAINS SUPPLY as definition covering both AC and DC mains supply.
' Z$ P; R! @* |+ C0 L1.2.9.7 New 0 RMS WORKING VOLTAGE introduced as defined term.
' F/ c, v; c' G. N* L0 d& H7 P* w1.2.10.4 New 0 SOLID INSULATION introduced as defined term.
1.2.13.15 New 0 CHEESECLOTH introduced as defined term.
1.2.13.16 New 0 WRAPPING TISSUE introduced as defined term.
4 M( k5 J6 t4 e" F' K( L5 n( n2 S+ V1.2.13.17 New 0 PROTECTIVE CURRENT RATING introduced as defined term which is similar to
' n, ]" K5 d2 t4 K$ P* w+ Pprevious term "current rating of the circuit under test" of subclause 2.6.3.4.
1.3.3 Clarified 1 If the test voltage is not specified in a test item the rated voltage or any value
in the rated voltage range shall be used for test.
1.4.8 Modified 1 "Note 2" added for additional requirements of USA and Canada for
7 p  C; o7 K. s1 t# Dovervoltage protection of TNV circuits.
) }6 P2 n# ]5 {$ a' V1.4.14 Clarifi ed 1 Adding to third paragraph: "The failure of functional insulation is only
simulated when required by 5.3.4 c)" (risk of fire, risk of electric shock).
1.5.1 Modified 0 Adding "Note 3" (Switzerland does not allow mercury switches) and deleting
0 a- \& u' W: P( ~) ^2 V, Z  Msecond paragraph and old "Note 3".
( ?; ^! {2 i2 Q+ @- `0 N; T& g1.5.6 Modified 0 Complete change of subclause by adding information from IEC 60384-14.
However, application principle of X- and Y-capacitors not changed.
. b# K# t1 D& x; F; a9 V# A  l; g  i1.5.7 Complete change and concept for bridging resistors. Detailed requirements
  d; _" j5 H% R. W" [) r( |; M. Vfor:
# D6 ^8 t$ E. p* k, g9 C" o·  Resistors bridging functional/basic/supplementary insulation (1.5.7.1)
·  Resistors double/reinforced functional insulation (1.5.7.2)
·  Resistors double/reinforced functional insulation – Special
- v$ o: `# K2 v0 |0 ^7 Hrequirements when connected to antenna/coaxial cable (1.5.7.3)
3 W, I" h; {/ G' @0 R6 w; e1.5.7.1 Only subclauses 2.10.3 and 2.10.4 (distances) apply to such resistors.
) y2 p$ n" F# W3 p1 X* f1.5.7.2 Very different concept:
·  Single resistor is acceptable if it passes "Resistor test"
·  Group of resistors must either pass "Resistor test" or pass subclauses
8 q4 N& J& R1 N, d& Q5 c, E2.10.3 and 2.10.4 (distances) with each resistor short-circuited in turn
) }8 J; g& k! z/ Q7 V"Resistor test":
Damp heat test of IEC 60068-2-78 plus impulse test and resistance
- [1 i& _! k" D) d! bmeasurement.
1.5.7.3
Modified 2
; I3 t  x4 z3 Q* r, o9 YSame as 1.5.7.2 above but with different impulse generator for circuits with
( t- `: I' d  e  B$ k8 y# ucoaxial cable connection.
. i7 _# N4 R3 K4 k1.5.9 Requirements for varistors (VDR) specified.
, g; D) n7 d8 \' p4 a  w7 c7 x1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
( ~  u. M; H( p& @Primary circuit surge suppressors: only VDR allowed.
/ e! E6 B- W9 {# @% O0 L' ^) `1.5.9.2 An interrupting means must be provided for protection of the VDR in series.
1.5.9.3 It is allowed to bridge functional insulation by VDR, no additional
% T4 ~7 U9 V1 u$ mrequirements.
9 h) b) x6 Z& Y8 N; S6 }1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
& `0 X1 g) }$ E0 T3 \4 k  Y·  one side of the VDR must be earthed
# u9 d& R) Y. {. k, @3 r·  only possible for pluggable equipment type B or permanently
6 X2 S4 N, N( V' |  M- z: dconnected equipment or equipment with permanently connected
; @1 r% K* U* m+ z  cearthing conductor
7 x6 u  H5 B; V% I# Y! E- V·  more restrictions for countries FI, NO, SE
1.5.9.5
) @$ n( ^( k5 \" U3 U7 xNew 2
& a7 _! y, I' D3 u0 z* iIt is not allowed to bridge supplementary/double/reinforced insulation by
- Z8 T" n' {# W; `( B) oVDR.
1.6.1 Modified 0 "Note" for Australian national difference was deleted.
1 ^( A: c. z1 o" W3 z5 H6 i6 t. W1.7.1 Clarified 0 Clarification for the use of the Class II symbol.
1.7.2 Modified 0 Re-arranging of content of subclauses 1.7.2, 1.7.10 and 1.7.16.

deficit

太感谢了！