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EN60950中电气间隙的决定 ) n7 L) c5 U6 i5 Z1 v9 ^
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
0 I+ @- b$ T/ O0 y: SWhen U<300Vac.rms(400Vpeak)$ Z+ ?. G( O8 e# x3 q y
1) If peak working voltage <peak value of the AC MAINS SUPPLY ,check in table 2k
# s* R w' B6 I% V2) If peak working voltage >peak value of the AC MAINS SUPPLY ,the minimum clearances is the sum of the two following values :
; ]: P# Z+ U: tThe minimum clearance in table 2k 5 V/ F7 ~* \6 G. r8 a
The additional clearance in table 2L, I6 e) q! p7 o- b, W
2 clearance in the secondary circuit
0 n3 e2 u2 z) ~6 z一次电路的过压种类为Ⅱ,二次电路的过压种类为Ⅰ( N/ N6 J0 h/ _: G4 m! b( h
根据工作电压,瞬态电压和污染等级查表2M即可 |
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