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？
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
( l. o/ W. x3 n( w% y# N. aSubclause Change ? Comment
Foreword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
" \0 U! t1 b$ L: T! Q6 `yet (Mar-2006).
$ Z8 C) z1 Z, j  L- _4 M1 J1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
" k& Z3 b7 M9 t$ w' R8 I8 T  rincorporation in ITE.
1.1.3 Modified 1 "Support systems" were deleted from list of excluded examples.
' ?: u1 E3 M# t+ [, j" L1.2.2.3 New 1 RATED RESTING TIME replaces subclauses 1.2.2.3~5 (CONTINUOUS OPERATION,
2 c# C! t' B9 Y* E  V! B8 U: B- mSHORT-TIME OPERATION and INTERMITTENT OPERATION).
1.2.5.3 New 0 PLUGGABLE EQUIPMENT as definition covering both pluggable equipment types
% S- Z4 L- S7 G0 UA and B.
8 }) Y; |3 [+ l; f  N- k( G1.2.8.3 New 0 MAINS SUPPLY as definition covering both AC and DC mains supply.
1.2.9.7 New 0 RMS WORKING VOLTAGE introduced as defined term.
) e' M8 G) @  S" ?2 d1.2.10.4 New 0 SOLID INSULATION introduced as defined term.
: n7 P7 Z1 O9 L. L5 d: M, @# n* Q1.2.13.15 New 0 CHEESECLOTH introduced as defined term.
1.2.13.16 New 0 WRAPPING TISSUE introduced as defined term.
. _9 @' J6 M5 m3 Z' _- B' e1.2.13.17 New 0 PROTECTIVE CURRENT RATING introduced as defined term which is similar to
previous 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
overvoltage protection of TNV circuits.
1.4.14 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).
. G' m6 t+ `  U8 ~! M1.5.1 Modified 0 Adding "Note 3" (Switzerland does not allow mercury switches) and deleting
3 P% g7 |5 ]+ G* h% r4 z' q0 r5 T) ]second paragraph and old "Note 3".
4 d% m- S" D* G/ \- A1.5.6 Modified 0 Complete change of subclause by adding information from IEC 60384-14.
However, application principle of X- and Y-capacitors not changed.
8 d$ @% v% n( h1.5.7 Complete change and concept for bridging resistors. Detailed requirements
for:
: W$ C6 n! _- L* q$ t·  Resistors bridging functional/basic/supplementary insulation (1.5.7.1)
·  Resistors double/reinforced functional insulation (1.5.7.2)
% v- c- `& x  `·  Resistors double/reinforced functional insulation – Special
requirements when connected to antenna/coaxial cable (1.5.7.3)
  Q+ P+ N" ]3 u6 K) H, J1.5.7.1 Only subclauses 2.10.3 and 2.10.4 (distances) apply to such resistors.
3 G- m' l6 ?; O4 k0 u0 i1.5.7.2 Very different concept:
·  Single resistor is acceptable if it passes "Resistor test"
·  Group of resistors must either pass "Resistor test" or pass subclauses
- ?! U5 E# b4 {2.10.3 and 2.10.4 (distances) with each resistor short-circuited in turn
"Resistor test":
Damp heat test of IEC 60068-2-78 plus impulse test and resistance
measurement.
% N! G4 e! h  S1 a- N, w9 K, s1.5.7.3
3 X* G# Q- Y% v: Z# j' eModified 2
2 f5 l1 k0 I0 L! O+ W& GSame as 1.5.7.2 above but with different impulse generator for circuits with
2 A$ b+ i$ T7 a* E: w  r2 A+ qcoaxial cable connection.
1.5.9 Requirements for varistors (VDR) specified.
1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
Primary circuit surge suppressors: only VDR allowed.
" _' L; M' W9 g% u9 i1.5.9.2 An interrupting means must be provided for protection of the VDR in series.
$ n  @, o+ t  |, u0 M( C1.5.9.3 It is allowed to bridge functional insulation by VDR, no additional
3 ~& p8 Y. ~8 M5 O4 G# ]requirements.
1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
7 U# Z! |9 q/ V- N9 c; M·  one side of the VDR must be earthed
·  only possible for pluggable equipment type B or permanently
connected equipment or equipment with permanently connected
3 d" o( R: h$ v1 y3 `earthing conductor
2 h3 N0 I# {0 E# s# P·  more restrictions for countries FI, NO, SE
+ _2 f' p7 e0 b' E1.5.9.5
) x- M: S  J6 s: SNew 2
It is not allowed to bridge supplementary/double/reinforced insulation by
: P- V/ A- f6 K- ^VDR.
. Z0 I7 `* }. N7 w1.6.1 Modified 0 "Note" for Australian national difference was deleted.
1.7.1 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！