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
Subclause Change ? Comment
0 E$ t- a" D! _Foreword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
yet (Mar-2006).
! B6 u$ M+ P8 d7 h; S1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
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,
3 u2 m! }) h( cSHORT-TIME OPERATION and INTERMITTENT OPERATION).
1.2.5.3 New 0 PLUGGABLE EQUIPMENT as definition covering both pluggable equipment types
A and B.
1.2.8.3 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.
, q1 L6 q$ V3 ^: Z8 @1.2.13.15 New 0 CHEESECLOTH introduced as defined term.
& [2 g4 B& {1 h. O6 l1.2.13.16 New 0 WRAPPING TISSUE introduced as defined term.
1.2.13.17 New 0 PROTECTIVE CURRENT RATING introduced as defined term which is similar to
) O8 C5 t* X4 S! {0 n, y0 xprevious 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
7 f" v2 N& X4 m* \5 i! ^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
+ g/ A5 b# B) iovervoltage protection of TNV circuits.
8 K0 P  Z) c& X% f: e* B: X% \9 M1.4.14 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
1 d% C4 D" I2 K7 u) gsecond paragraph and old "Note 3".
* m& T, O$ O1 R8 O1.5.6 Modified 0 Complete change of subclause by adding information from IEC 60384-14.
9 K  i% o  s. yHowever, application principle of X- and Y-capacitors not changed.
1.5.7 Complete change and concept for bridging resistors. Detailed requirements
for:
! |) o; d- Q0 R3 v·  Resistors bridging functional/basic/supplementary insulation (1.5.7.1)
·  Resistors double/reinforced functional insulation (1.5.7.2)
# }9 Y. k. J, p% o·  Resistors double/reinforced functional insulation – Special
# J7 j0 s* x7 L3 A. [requirements when connected to antenna/coaxial cable (1.5.7.3)
1.5.7.1 Only subclauses 2.10.3 and 2.10.4 (distances) apply to such resistors.
1.5.7.2 Very different concept:
2 c3 m7 m. |# Y" A0 @·  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
measurement.
8 w3 ]) }+ @6 m4 q1 Q, y% g' [- t1.5.7.3
4 N  c# ?# L0 aModified 2
Same as 1.5.7.2 above but with different impulse generator for circuits with
! I4 P- _! Q4 L6 `coaxial cable connection.
& p: R8 {8 p% H; ~1 M/ k1.5.9 Requirements for varistors (VDR) specified.
  @$ S+ e3 x; t) K; ^- i* [: H1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
Primary circuit surge suppressors: only VDR allowed.
1.5.9.2 An interrupting means must be provided for protection of the VDR in series.
' C6 M: C( g1 o; k. j7 l1.5.9.3 It is allowed to bridge functional insulation by VDR, no additional
7 R8 a4 v9 }# S/ j7 frequirements.
* l3 I1 r7 A: Q; s+ H  k1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
+ }. {1 z; C- g) Y/ M·  one side of the VDR must be earthed
' B. S# N1 _  P5 I" p·  only possible for pluggable equipment type B or permanently
, Y. N- q& f4 b. q1 uconnected equipment or equipment with permanently connected
earthing conductor
: z9 r1 n' d2 M" S( D3 n·  more restrictions for countries FI, NO, SE
0 a: f1 m7 c" }: b6 K/ ]- h1.5.9.5
5 ~4 V. B7 P# R. tNew 2
It is not allowed to bridge supplementary/double/reinforced insulation by
& q6 E. x9 g. l0 E4 ^) ZVDR.
1.6.1 Modified 0 "Note" for Australian national difference was deleted.
1.7.1 Clarified 0 Clarification for the use of the Class II symbol.
- e! w1 @- R- Z1.7.2 Modified 0 Re-arranging of content of subclauses 1.7.2, 1.7.10 and 1.7.16.

deficit

太感谢了！