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？
% X  G; _, a, N- f6 F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"
8 z0 r. H- K" u4 q? : Level of importance (0=not, 3=very) Page 3 of 20 Document date: 4-Apr-2006
; F2 L2 w/ U% N. i6 U! S# @: MSubclause Change ? Comment
0 y+ Z0 f9 M3 w: r9 m1 O$ p# CForeword Added 0 Additional parts "22" and "23" mentioned that are planned but not published
yet (Mar-2006).
( b; k; j2 c* D! ?; k# U- h& _1.1.1 Clarified 2 IEC 60950-1 applies as well to components and subassemblies intended for
4 c  m2 B: M3 b; j" s. ^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,
SHORT-TIME OPERATION and INTERMITTENT OPERATION).
# `3 y  G2 s6 j# @$ H3 m1.2.5.3 New 0 PLUGGABLE EQUIPMENT as definition covering both pluggable equipment types
2 S0 V3 c1 [1 e3 i  \/ l* \' R% k) wA and B.
  i2 J5 W; F' H  I' T1 O6 A0 c1.2.8.3 New 0 MAINS SUPPLY as definition covering both AC and DC mains supply.
1 Q3 V. Y1 ^2 R5 \. u1.2.9.7 New 0 RMS WORKING VOLTAGE introduced as defined term.
$ u* T- D/ |. |8 t1 s1.2.10.4 New 0 SOLID INSULATION introduced as defined term.
1.2.13.15 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
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
# Y: b3 `. I9 K7 Z/ g- y! A& Rin the rated voltage range shall be used for test.
4 Q0 j  Z6 y3 x" y1.4.8 Modified 1 "Note 2" added for additional requirements of USA and Canada for
4 N$ a% a! W8 ~, j+ q1 Zovervoltage protection of TNV circuits.
# E/ x& I% ]$ [1.4.14 Clarifi ed 1 Adding to third paragraph: "The failure of functional insulation is only
7 E% b0 t0 A6 x, Bsimulated when required by 5.3.4 c)" (risk of fire, risk of electric shock).
5 h- T2 R% C9 S& g' U: m1.5.1 Modified 0 Adding "Note 3" (Switzerland does not allow mercury switches) and deleting
) b9 V. F$ |: ^/ Ksecond paragraph and old "Note 3".
9 s1 a3 H* o3 a8 h1.5.6 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
& C- I  e3 a1 ^( {for:
' Q' P: }2 ~0 Q9 P& r; m% X·  Resistors bridging functional/basic/supplementary insulation (1.5.7.1)
·  Resistors double/reinforced functional insulation (1.5.7.2)
1 m  O6 X& x6 Y·  Resistors double/reinforced functional insulation – Special
* i3 T/ I( E8 _- ~4 |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.
# A& L+ T  C, a( b, H1.5.7.2 Very different concept:
8 h9 k3 n5 H. c! W- w·  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
$ G2 ^4 \7 l" f) `( M; q"Resistor test":
5 {- h# C( [* I# `4 l! G# _, b. \/ UDamp heat test of IEC 60068-2-78 plus impulse test and resistance
4 `7 |/ p( a( _, \* X+ T( d+ e; `measurement.
1.5.7.3
8 f5 `$ M2 K5 l, H' o- ZModified 2
$ E6 w+ B: y! Y2 w  C$ W5 {Same 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.
1.5.9.1 Secondary circuit surge suppressors: any suitable component allowed
7 V, [9 _- S9 [; p% wPrimary circuit surge suppressors: only VDR allowed.
1.5.9.2 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 Q1 t. A/ H! ^9 ~  G; t1.5.9.4 It is allowed to bridge basic insulation by VDR with additional requirements:
- G/ ~4 d' D2 r2 x7 m8 p·  one side of the VDR must be earthed
' {0 v7 c. W. S5 O·  only possible for pluggable equipment type B or permanently
connected equipment or equipment with permanently connected
- O5 w  X; l" b6 Eearthing conductor
! g1 o1 N+ A4 R3 P% c·  more restrictions for countries FI, NO, SE
1.5.9.5
* d. Q' x4 y" T$ @7 m1 uNew 2
It is not allowed to bridge supplementary/double/reinforced insulation by
VDR.
+ D3 a+ j' |% R, H# S- z) N1.6.1 Modified 0 "Note" for Australian national difference was deleted.
/ v* z5 z% F6 H2 q8 r8 N! P1.7.1 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！