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EN60950中电气间隙的决定
! w9 E) W2 J4 V* Z1 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/ ]7 R% b5 `9 h2 T4 p' \5 B! u9 [ g
When U<300Vac.rms(400Vpeak)9 B7 a: H! ?' {8 Z8 ?% ^! _
1) If peak working voltage <peak value of the AC MAINS SUPPLY ,check in table 2k d' \- g: i. d1 N0 w0 d
2) If peak working voltage >peak value of the AC MAINS SUPPLY ,the minimum clearances is the sum of the two following values :
8 u, z: m) _7 i# oThe minimum clearance in table 2k
& ^. B1 T7 C5 @8 D9 H2 GThe additional clearance in table 2L
* W3 D( A9 e5 U6 b9 o- K" j2 clearance in the secondary circuit
! C5 Z# M7 ^' |一次电路的过压种类为Ⅱ,二次电路的过压种类为Ⅰ
: O, g# r9 R4 n# ~( S1 {根据工作电压,瞬态电压和污染等级查表2M即可 |
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