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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:
: V- [) }+ m. I* }" {0 d3 vIn order to meets the reinforced insulation requirement( refer to+ q* Z& Y/ v: c n
IEC60335-1 22.42), whether shall be at least add 2 Y capacitors between
$ e9 |) K% o0 H8 R! Sthe primary and the secondary of the transformer ? A& `2 H" \# p! ?6 y2 I: p
# l# L( y4 y1 m1 X C
VDE: if there are any capacitors connect between the primary and the2 v* p! v+ e* B, u& Q) k( j
secondary of the transformer, it shall be
. Y3 ?/ S- A3 n& D7 p- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as* C' B2 _' l8 g' c
secondary); or
$ J9 K$ A% i' Q, C7 _3 C6 e- 2 x Y1 capacitors2 T% v. d v) @
8 }8 G6 p7 Q; x' e" J |If no any Y capacitors between the primary and the secondary of the% i/ A+ j8 ? [2 t% u& q% c
transformer, whether it will affect the reinforced insulation ?
. H* M' D7 l- w0 N
+ L/ f- \9 Y7 fVDE: no capacitor is accepted.
: a2 A; I$ |- ?" b- f7 p8 HBut please be reminded that in any case the requirement of clearance and- Q: ^ Q6 q Z. E% f! f; @+ g3 r- ~
creepage shall be fulfilled. |
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