60950 绝缘厚度要求

cmk1991

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请问一下 60950 有没有绝缘厚度要求呢？是多少？在标准的哪一章。谢谢.

yyll

2.10.5节

sky0805

2.10.3.3 Clearances in primary circuits
For insulation in PRIMARY CIRCUITS, between PRIMARY CIRCUITS and earth and between PRIMARY CIRCUITS
+ U7 w2 h  g: X: ^7 s. `8 Eand SECONDARY CIRCUITS, the following rules apply.
For an AC MAINS SUPPLY not exceeding 300 V r.m.s. (420 V peak):
a) if the PEAK WORKING VOLTAGE does not exceed the peak value of the AC MAINS SUPPLY
voltage, minimum CLEARANCES are determined from Table 2K;
% \4 q2 R3 s% Ib) if the PEAK WORKING VOLTAGE exceeds the peak value of the AC MAINS SUPPLY voltage,
. r' I+ K, O3 o. g$ S0 d. Tthe minimum CLEARANCE is the sum of the following two values:
• the minimum CLEARANCE from Table 2K; and
• the appropriate additional CLEARANCE from Table 2L.

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sky0805 发表于 2015-5-28 09:24
9 G4 \- D, t  `6 K7 m2.10.3.3 Clearances in primary circuits
0 y0 \# `( z9 j  G& ~4 K# s  S& JFor insulation in PRIMARY CIRCUITS, between PRIMARY CIRCUIT ...

大哥，人家在问绝缘厚度哦，说的应该是固体绝缘的厚度，参考2.10.5就可以了，您列个电气间隙的章节是不是有点文不对题。。。

sky0805

2.10.5 Solid insulation
4 n$ ?. Z1 W  T. F2.10.5.1 General
7 m# i: c8 G3 P& x7 d9 B4 |In 2.10.5, the requirements for SOLID INSULATION (except those for thin sheet material) and for
3 |. S1 P9 F( H+ W! iinsulating compound also apply to gel materials, used for this purpose.
, z5 {% r2 Y/ B5 ^SOLID INSULATION shall be:
1 z% x/ p* t3 y0 m3 \# Q− so dimensioned that overvoltages, including transients, that enter the equipment, and
' Z: S; M/ {) speak voltages that may be generated within the equipment, do not break down the SOLID
0 x% e4 G: W. X$ H( M  Q5 oINSULATION; and
− so arranged that the likelihood of breakdown occurring due to the presence of pinholes in
6 `; C( m) ~4 B; a6 n4 Kthin layers of insulation is limited.
6 J' p( m" h% r3 O' HSolvent-based enamel is accepted only on winding wire as described in 2.10.5.13.
! @# h: X, M: j1 pExcept for printed boards, SOLID INSULATION shall either
3 l  X  ]% M& P! A/ y' \- R− comply with minimum distances through insulation in accordance with 2.10.5.2; or
6 M% g0 P/ _4 }* K- f* a8 l− meet the requirements and pass the tests in 2.10.5.3 to 2.10.5.13, as applicable.
NOTE 1 For printed boards, see 2.10.6.
/ I! y0 E$ K2 TNOTE 2 For SOLID INSULA TION on internal wiring, see 3.1.4.
Compliance with the requirements of 2.10.5.2 to 2.10.5.14 for the adequacy of SOLID
/ X2 v6 A, Q: U0 I4 g+ RINSULATION is verified by inspection and measurement, taking into account Annex F, by the
electric strength tests of 5.2 and by any additional tests required in 2.10.5.4 to 2.10.5.14.
" |9 Q" k; [/ W- B; Q7 L3 M2.10.5.2 Distances through insulation
  i) y( X9 \2 H1 d! uIf a design is based on distances through insulation, these distances shall be dimensioned
according to the application of the insulation (see 2.9) and as follows (see Figure F.14):
6 S: n% x* U! n− if the PEAK WORKING VOLTAGE does not exceed 71 V, there is no requirement for distance
* K3 P2 Y2 R6 c* G! ~through insulation;
− if the PEAK WORKING VOLTAGE exceeds 71 V, the f ollowing rules apply:
• for FUNCTIONAL INSULATION and BASIC INSULATION there is no minimum distance through
insulation;
# A& e+ F# G4 h3 g• SUPPLEMENTARY INSULATION or REINFORCED INSULATION shall have a distance through
insulation that is 0,4 mm or greater, provided by a single layer.
0 R  b. s  S5 n  c; gFor compliance criteria, see 2.10.5.1.

sky0805

參考上述...

cmk1991

sky0805 发表于 2015-5-28 12:02
參考上述...

谢谢了，学习了。

sky0805

sky0805 发表于 2015-5-28 12:02
參考上述...

不客氣，在此也希望批評的讀者能將心比心，錯誤指出吾等虛心受教...指正者應將正確的內容與經驗分享於各位!!