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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:
6 m$ @% i S9 G# }- u, }In order to meets the reinforced insulation requirement( refer to- S( A3 v# Y. W% V4 s6 O
IEC60335-1 22.42), whether shall be at least add 2 Y capacitors between
0 R( p# Q( K% | ~the primary and the secondary of the transformer ?* P7 |# J- R' U3 H3 y
1 B# ?, i y, K; PVDE: if there are any capacitors connect between the primary and the0 i) y+ L e8 I0 P
secondary of the transformer, it shall be
) p1 B9 K, ~5 ]+ N8 j/ ^8 C. ~- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as
6 u, D$ e2 @" `, f. esecondary); or6 b4 J4 w& }1 q! J
- 2 x Y1 capacitors) t6 ]% n6 U9 ]+ b, L/ X
7 ?" Q I0 B- ? i# F8 k$ z
If no any Y capacitors between the primary and the secondary of the' s9 I/ U8 {- n0 n$ z
transformer, whether it will affect the reinforced insulation ?
4 i0 @) c. w5 \- y5 d( E; X+ b. \* t, S
VDE: no capacitor is accepted.
; r `; }0 s0 W# I) oBut please be reminded that in any case the requirement of clearance and; H: q; n$ a% P0 j9 A3 l# K
creepage shall be fulfilled. |
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