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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:0 g( s: l, Z+ t3 e" i6 ~
In order to meets the reinforced insulation requirement( refer to
8 x& J; m+ w1 u" r6 K. ?2 m) fIEC60335-1 22.42), whether shall be at least add 2 Y capacitors between N% }0 M# T w
the primary and the secondary of the transformer ?3 g: z* m* K' k
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VDE: if there are any capacitors connect between the primary and the# e( O* d* f1 D, {
secondary of the transformer, it shall be
: \: t0 _, d! Q- q/ S1 |" Y- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as3 y/ V3 p$ t# R8 J2 ^
secondary); or) B0 N! b9 ?( y9 L) h$ A. o
- 2 x Y1 capacitors
4 x Q* k j' k* S
6 V! S9 V% {" f- gIf no any Y capacitors between the primary and the secondary of the* N$ n1 I6 M: u. o N r9 x
transformer, whether it will affect the reinforced insulation ?
, n) Y& ` P3 N7 {' N5 C( s# L$ E" |) C0 ~# `0 o" _- {$ z+ A
VDE: no capacitor is accepted.
' Z3 ]0 Q% B+ S* N5 u* E0 N( RBut please be reminded that in any case the requirement of clearance and
/ g/ r4 \# u- K0 N9 Qcreepage shall be fulfilled. |
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