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EN60950中电气间隙的决定
8 Q/ v# w1 v+ M# u0 Q1 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/ p/ [! g8 a" a0 g+ d" H; n
When U<300Vac.rms(400Vpeak)
8 v9 a1 l+ ]8 z: K0 d1) If peak working voltage <peak value of the AC MAINS SUPPLY ,check in table 2k + J9 H' W! x9 b8 n, [
2) If peak working voltage >peak value of the AC MAINS SUPPLY ,the minimum clearances is the sum of the two following values :
" N$ U. ?8 G- ~1 Q4 M) E: u) E8 S" YThe minimum clearance in table 2k
4 S0 e: n7 d. |* y$ ]+ \The additional clearance in table 2L
E2 }$ G+ _3 h- m& c1 v1 U- Q4 [2 clearance in the secondary circuit
, d% g3 r- S4 ~ e7 E2 U" W: Q一次电路的过压种类为Ⅱ,二次电路的过压种类为Ⅰ) y$ B' r: @# w1 x, |, p9 j) ^' V
根据工作电压,瞬态电压和污染等级查表2M即可 |
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