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"
$ ]% v' _! T$ V, x) g? : Level of importance (0=not, 3=very) Page 3 of 20 Document date: 4-Apr-2006
Subclause Change ? Comment
' i- v5 u9 R% T, j9 {* o& `Foreword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
0 [8 \; |' t3 G. Eyet (Mar-2006).
5 i6 v& s7 X5 E& b1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
incorporation in ITE.
3 z  J" S3 E# Z, h/ k: N1.1.3 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 b7 Y7 w% t7 J6 h3 p2 c3 N6 FSHORT-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.
$ [3 H% X! S4 k! x* Y7 p1.2.9.7 New 0 RMS WORKING VOLTAGE introduced as defined term.
1.2.10.4 New 0 SOLID INSULATION introduced as defined term.
8 B! [" P+ r, R8 C9 K) @& N1.2.13.15 New 0 CHEESECLOTH introduced as defined term.
1.2.13.16 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
' J3 j( H  y5 {previous term "current rating of the circuit under test" of subclause 2.6.3.4.
! D7 g( z- g6 W3 R3 ~1 u1.3.3 Clarified 1 If the test voltage is not specified in a test item the rated voltage or any value
8 U! M2 w5 u  G2 hin the rated voltage range shall be used for test.
3 D: W2 S2 _& ^- q& i3 Y1.4.8 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' w# Z1 l% T, C" rsimulated 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
9 w9 X2 K% K! ]; M; u- K( X4 a% Ksecond paragraph and old "Note 3".
' j( ~" H* O" Y5 s* o* Z# X1.5.6 Modified 0 Complete change of subclause by adding information from IEC 60384-14.
9 [+ z# X  d* T/ V$ t1 k" ~5 YHowever, application principle of X- and Y-capacitors not changed.
- m6 R3 ^1 F  \* y: r0 M1.5.7 Complete change and concept for bridging resistors. Detailed requirements
for:
·  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
$ |& Q" ]$ b( e' K" t  qrequirements 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.
8 E: f8 ^/ ]& g5 K6 B1.5.7.2 Very different concept:
( _$ [. e  [6 ^7 w7 x·  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
" t- X5 z4 V  t/ Q0 p$ gmeasurement.
1.5.7.3
Modified 2
Same as 1.5.7.2 above but with different impulse generator for circuits with
! q, a0 K/ T$ j9 c5 Y2 Qcoaxial cable connection.
1.5.9 Requirements for varistors (VDR) specified.
1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
. t8 ~# @! ]1 K1 ~% mPrimary circuit surge suppressors: only VDR allowed.
" \$ B3 W) z% K4 c1.5.9.2 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
requirements.
$ ~4 `1 U) C' R) {1 Q1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
·  one side of the VDR must be earthed
·  only possible for pluggable equipment type B or permanently
connected equipment or equipment with permanently connected
earthing conductor
·  more restrictions for countries FI, NO, SE
1.5.9.5
New 2
/ I! ^# E3 [1 b9 X; G- kIt is not allowed to bridge supplementary/double/reinforced insulation by
VDR.
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.
' q2 ]7 y8 ]3 V( L. y( }, l2 C1.7.2 Modified 0 Re-arranging of content of subclauses 1.7.2, 1.7.10 and 1.7.16.

deficit

太感谢了！