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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:
% J `5 j9 R: [, AIn order to meets the reinforced insulation requirement( refer to
: _5 K9 X% S* i* U' [9 kIEC60335-1 22.42), whether shall be at least add 2 Y capacitors between( T# P3 B: [! M/ J! T$ O
the primary and the secondary of the transformer ?
$ }0 u) K s* s. Y* k0 h4 t6 S/ ~- e
VDE: if there are any capacitors connect between the primary and the6 c* m: {+ n0 q& n& N# ~+ [' X- r
secondary of the transformer, it shall be
) Q* Y9 P. d9 H- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as
9 x8 S. Q3 c! }9 o- R2 q9 asecondary); or5 b+ r- {7 I0 d6 V& o+ ], {- Z
- 2 x Y1 capacitors4 k& U7 V( O1 H O
7 M9 B9 f* l" w" R1 V i4 \6 s
If no any Y capacitors between the primary and the secondary of the
. K( }9 }# w: n; m% @0 `; Vtransformer, whether it will affect the reinforced insulation ?
* }! ?% r& R: f- E0 u6 k8 Z( G0 f G( v8 g9 J
VDE: no capacitor is accepted.
( w; |7 \% N4 I/ LBut please be reminded that in any case the requirement of clearance and' W) k8 z( B$ s
creepage shall be fulfilled. |
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