|
|
EN60950中电气间隙的决定
@, t2 t* [ B6 y1 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
) E$ Y7 G- a* zWhen U<300Vac.rms(400Vpeak)! M) C$ Q2 l" ^3 l+ `- x$ M
1) If peak working voltage <peak value of the AC MAINS SUPPLY ,check in table 2k 7 t2 G4 ?5 u) Y6 |2 F1 Y" y
2) If peak working voltage >peak value of the AC MAINS SUPPLY ,the minimum clearances is the sum of the two following values :+ }8 Y; D7 U8 y8 b/ e8 j" i
The minimum clearance in table 2k
6 F2 ~7 l( O) c" L* T5 @The additional clearance in table 2L& S6 u7 {& m2 }' h
2 clearance in the secondary circuit 2 A1 Z% x( I2 k1 \
一次电路的过压种类为Ⅱ,二次电路的过压种类为Ⅰ
! x% u$ s" h, U* M根据工作电压,瞬态电压和污染等级查表2M即可 |
|