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EN60950中电气间隙的决定 - J4 G9 [' H1 u( W9 [; T1 I( Y
1 初级电路之间,初级电路到地,初级电路到次级电路的电气间隙的决定9 A& ?7 ~, B% G, n: ~3 {
When U<300Vac.rms(400Vpeak)$ V: a# g( ^, P ~- U
1) If peak working voltage <peak value of the AC MAINS SUPPLY ,check in table 2k
- r7 P) W+ j2 ]$ r/ T0 o9 I3 c2) If peak working voltage >peak value of the AC MAINS SUPPLY ,the minimum clearances is the sum of the two following values :
% {2 I1 H8 E7 R( H8 {- ^: ]The minimum clearance in table 2k 5 B) ?4 ?, n& H- t/ T j4 G
The additional clearance in table 2L2 j! I: \: l1 c
2 clearance in the secondary circuit / x0 q- `% b! [2 ]8 I$ b" e
一次电路的过压种类为Ⅱ,二次电路的过压种类为Ⅰ( c w$ s4 U5 i/ D
根据工作电压,瞬态电压和污染等级查表2M即可 |
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