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EN60950中电气间隙的决定 4 {0 a+ T7 k4 ~. q. ]
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3 ]' c: e0 f6 U- Y5 K5 S) Y+ [8 e$ I
When U<300Vac.rms(400Vpeak)/ y' L! a) o) m3 e" b$ j
1) If peak working voltage <peak value of the AC MAINS SUPPLY ,check in table 2k
" X. u% s/ C. [. i; V2) If peak working voltage >peak value of the AC MAINS SUPPLY ,the minimum clearances is the sum of the two following values :2 M. W- E8 o: N6 b6 t5 A
The minimum clearance in table 2k
6 j. D' Q0 x% j8 ?" u, P. [5 vThe additional clearance in table 2L
v' h% Q9 E' I0 X" x3 {* D2 clearance in the secondary circuit $ d4 L; t, ]& [, J( ^1 V, u- ], D
一次电路的过压种类为Ⅱ,二次电路的过压种类为Ⅰ# P& K# i/ |- J+ _
根据工作电压,瞬态电压和污染等级查表2M即可 |
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