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"
* }5 \7 Z( w0 U& m? : Level of importance (0=not, 3=very) Page 3 of 20 Document date: 4-Apr-2006
; U- l$ |- N- l- I, BSubclause Change ? Comment
Foreword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
yet (Mar-2006).
: k$ J0 j, E, C: A' a7 d1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
incorporation in ITE.
. A2 m6 z0 U0 H2 ]' n' ~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,
SHORT-TIME OPERATION and INTERMITTENT OPERATION).
0 a! b6 @: T- c- E9 O6 t+ [0 T/ r: ]1.2.5.3 New 0 PLUGGABLE EQUIPMENT as definition covering both pluggable equipment types
/ \7 T/ P( X* D& q- U/ @A and B.
1.2.8.3 New 0 MAINS SUPPLY as definition covering both AC and DC mains supply.
, a% J) E; H. e0 u/ w: z1.2.9.7 New 0 RMS WORKING VOLTAGE introduced as defined term.
. V' j7 r) v$ g( w; O, a1.2.10.4 New 0 SOLID INSULATION introduced as defined term.
7 h; G! H# Q+ K/ g+ q1.2.13.15 New 0 CHEESECLOTH introduced as defined term.
1.2.13.16 New 0 WRAPPING TISSUE introduced as defined term.
* O- `- _' a3 B/ H1.2.13.17 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.
, }5 e* A2 b& V( C. c3 W( Q1.4.8 Modified 1 "Note 2" added for additional requirements of USA and Canada for
0 C- m- x6 t5 x. }/ k4 s) N% sovervoltage protection of TNV circuits.
1.4.14 Clarifi ed 1 Adding to third paragraph: "The failure of functional insulation is only
& z2 b0 I5 M$ a9 R; g, ksimulated 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
5 R) T* S. t+ Y% J+ nsecond paragraph and old "Note 3".
1.5.6 Modified 0 Complete change of subclause by adding information from IEC 60384-14.
3 ?- k6 |: Y4 t0 m2 UHowever, application principle of X- and Y-capacitors not changed.
5 W& V2 j% m) B, q1 q- U8 O1.5.7 Complete change and concept for bridging resistors. Detailed requirements
+ t% _# N( W5 \% Wfor:
·  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
requirements when connected to antenna/coaxial cable (1.5.7.3)
6 q( U/ O2 }& c) m1.5.7.1 Only subclauses 2.10.3 and 2.10.4 (distances) apply to such resistors.
7 g' t$ ]' ~* ~1 C% q1.5.7.2 Very different concept:
·  Single resistor is acceptable if it passes "Resistor test"
·  Group of resistors must either pass "Resistor test" or pass subclauses
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
' H+ h1 |! {" u! d; N5 cmeasurement.
1.5.7.3
- a' ]) x( M) d# D. UModified 2
Same as 1.5.7.2 above but with different impulse generator for circuits with
- u) F* D7 K% U+ k' Lcoaxial cable connection.
1.5.9 Requirements for varistors (VDR) specified.
' E0 L6 \4 R  S( m4 R" P1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
. p! T+ F0 Y' Q3 \/ y9 kPrimary circuit surge suppressors: only VDR allowed.
+ x' f& a% W' @& N* ?1.5.9.2 An interrupting means must be provided for protection of the VDR in series.
4 c' c5 A7 ^) C1 s1.5.9.3 It is allowed to bridge functional insulation by VDR, no additional
requirements.
1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
# |9 w! R; k1 O8 t: e7 d·  one side of the VDR must be earthed
1 f# y. x0 ?% e' j·  only possible for pluggable equipment type B or permanently
8 Y: l! n+ c; `. k0 ~) g1 @5 kconnected equipment or equipment with permanently connected
earthing conductor
·  more restrictions for countries FI, NO, SE
, |; \. {- M4 N7 L& @" P/ a1.5.9.5
New 2
It is not allowed to bridge supplementary/double/reinforced insulation by
. m2 X& z5 V9 j3 \VDR.
$ j! k5 ]( \) e! L1 y$ o; ]% i1.6.1 Modified 0 "Note" for Australian national difference was deleted.
( P3 ]* Q8 {: n9 Y1.7.1 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！