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非常感谢大家的回答,我也发邮件咨询了VDE, VDE也认可变压器初级和次级不加Y电容。是第三方认证机构没搞清楚,下面是跟VDE沟通的邮件内容分享给大家:5 [) c, M# V. X. y( S
In order to meets the reinforced insulation requirement( refer to, p3 g3 w1 w9 ]/ c! [- _& H
IEC60335-1 22.42), whether shall be at least add 2 Y capacitors between
+ {* G/ l% F$ wthe primary and the secondary of the transformer ?
( l7 Z% y! ~* p9 {/ s) g7 t# e1 p
: U, [6 L2 q$ w0 u$ ]3 r* f0 ?VDE: if there are any capacitors connect between the primary and the
) L- X" A0 @% X4 Y3 Z$ L% O8 usecondary of the transformer, it shall be
: R/ z+ n; z: s7 c q- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as
# }$ U0 l6 L- O9 H4 ?secondary); or
0 J K) f* |! t3 I- 2 x Y1 capacitors, q3 ~8 C/ `- _
) f6 K& O" J$ A7 y# `3 \' {5 N% kIf no any Y capacitors between the primary and the secondary of the1 r0 j' u# u# `9 q3 T
transformer, whether it will affect the reinforced insulation ?9 A2 Q, [# m [+ y$ I. t* x( g
/ ?6 Z9 p, @4 f4 G
VDE: no capacitor is accepted.
) }5 B. R4 y8 A x6 `/ FBut please be reminded that in any case the requirement of clearance and9 [7 s y1 S& s( D! {
creepage shall be fulfilled. |
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