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？
$ N% _. L: r3 }& X0 t+ M/ J9 Y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"
) t# u  o! E1 g2 L/ s) F/ o+ J3 p- U? : Level of importance (0=not, 3=very) Page 3 of 20 Document date: 4-Apr-2006
0 K: i, I1 W: t7 LSubclause Change ? Comment
Foreword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
1 |1 Y0 _. P7 [3 }yet (Mar-2006).
1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
incorporation in ITE.
4 R" a4 a0 k, a7 C: V6 k1.1.3 Modified 1 "Support systems" were deleted from list of excluded examples.
6 E! B0 U1 x" q. U7 N1.2.2.3 New 1 RATED RESTING TIME replaces subclauses 1.2.2.3~5 (CONTINUOUS OPERATION,
SHORT-TIME OPERATION and INTERMITTENT OPERATION).
  s* V9 i2 ^3 q: ~1.2.5.3 New 0 PLUGGABLE EQUIPMENT as definition covering both pluggable equipment types
A and B.
2 r8 b( _6 ^& x4 g' m& U9 V9 [5 r1.2.8.3 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.
1.2.10.4 New 0 SOLID INSULATION introduced as defined term.
, T- b* W% ?; ]0 l1.2.13.15 New 0 CHEESECLOTH introduced as defined term.
1.2.13.16 New 0 WRAPPING TISSUE introduced as defined term.
/ O# X9 b1 P8 r$ ]" t1.2.13.17 New 0 PROTECTIVE CURRENT RATING introduced as defined term which is similar to
3 c( N! ~$ Q% o( o- Eprevious 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
5 ~4 ~! d7 z! v' n6 |' I; ein 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
) u& f4 Q  l; X4 Z! i" xsimulated when required by 5.3.4 c)" (risk of fire, risk of electric shock).
" q6 o! M/ Q& o, y1 N8 v3 I$ o1.5.1 Modified 0 Adding "Note 3" (Switzerland does not allow mercury switches) and deleting
# g. F2 G. S& Jsecond paragraph and old "Note 3".
, b" A; Z% r0 z; s7 B! \1.5.6 Modified 0 Complete change of subclause by adding information from IEC 60384-14.
However, application principle of X- and Y-capacitors not changed.
1.5.7 Complete change and concept for bridging resistors. Detailed requirements
% y& V* w/ t/ d* rfor:
. M) ]6 X. G8 P, C·  Resistors bridging functional/basic/supplementary insulation (1.5.7.1)
1 w, i2 p; W$ X& V* g; [·  Resistors double/reinforced functional insulation (1.5.7.2)
6 [$ q. A& [, e/ ]) ~- L! q·  Resistors double/reinforced functional insulation – Special
requirements when connected to antenna/coaxial cable (1.5.7.3)
* i9 U( `  M( F( B/ q( s1.5.7.1 Only subclauses 2.10.3 and 2.10.4 (distances) apply to such resistors.
6 h4 M; c6 e6 g! U: K1.5.7.2 Very different concept:
·  Single resistor is acceptable if it passes "Resistor test"
( q) `3 Q  s9 w; |( P( V2 I·  Group of resistors must either pass "Resistor test" or pass subclauses
2.10.3 and 2.10.4 (distances) with each resistor short-circuited in turn
/ m) m3 o3 [# s( K"Resistor test":
& G  P0 A$ |- `4 YDamp heat test of IEC 60068-2-78 plus impulse test and resistance
9 ]7 x% |! K) I% ?' E/ [( K3 W6 w! R& emeasurement.
1.5.7.3
Modified 2
9 a$ U- F. r" M. rSame as 1.5.7.2 above but with different impulse generator for circuits with
coaxial cable connection.
1.5.9 Requirements for varistors (VDR) specified.
. ]' K- d7 b3 s; C" T- x: w# U- k1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
0 ], o$ K1 [$ O% W6 i: e% APrimary circuit surge suppressors: only VDR allowed.
0 W5 S' {4 e; M5 F" A+ C5 k1.5.9.2 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
! h' M1 G7 J+ ]8 O" M( D/ \% E; Orequirements.
1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
·  one side of the VDR must be earthed
* R0 d$ u2 c* {5 w5 M  e·  only possible for pluggable equipment type B or permanently
connected equipment or equipment with permanently connected
earthing conductor
& x; m1 {9 k+ c, g  f·  more restrictions for countries FI, NO, SE
  H$ C5 v. Q9 q- O0 y1.5.9.5
New 2
It is not allowed to bridge supplementary/double/reinforced insulation by
/ a5 |- L( l$ l6 MVDR.
7 w9 T' x7 s6 j" t. G1.6.1 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！