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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 q# {2 ?3 K5 ^6 P1 p* W- s( KIn order to meets the reinforced insulation requirement( refer to
" ^. ]" O( n0 `IEC60335-1 22.42), whether shall be at least add 2 Y capacitors between
3 P$ W0 ~2 ^! h. athe primary and the secondary of the transformer ?+ F2 C, z! o2 }1 N8 R; ^- O7 [
# Q* r4 p4 B" H# _' s, J0 sVDE: if there are any capacitors connect between the primary and the
. ~& R, D) \9 r1 Asecondary of the transformer, it shall be$ ^1 B6 y& g7 e1 Q& E
- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as
+ P+ ~- I. l% f' ?secondary); or
1 T" p' f* C' f6 Q8 p! p5 R- 2 x Y1 capacitors
1 t6 R5 m7 c+ X$ W2 ^% u0 W4 u& Z8 r* x- ^% D& h0 r
If no any Y capacitors between the primary and the secondary of the
; ^: L) P5 F- B5 ] ^transformer, whether it will affect the reinforced insulation ?
/ H& u. S* D- U* L5 o5 p0 d9 A
VDE: no capacitor is accepted.6 J1 C# V" e1 k) V
But please be reminded that in any case the requirement of clearance and
6 a/ d$ e2 t1 Q3 M$ w# ?creepage shall be fulfilled. |
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