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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:
) L- g/ H5 `6 Q8 a, l- ^" v7 P3 nIn order to meets the reinforced insulation requirement( refer to5 A5 J' P% a' T, F
IEC60335-1 22.42), whether shall be at least add 2 Y capacitors between
! K9 T( M8 k" ]& g. u o C. N% athe primary and the secondary of the transformer ?
# ], J) o3 O5 _% [4 D, {( n% L1 n7 Z- k7 e- p# l3 _+ ~7 N
VDE: if there are any capacitors connect between the primary and the$ l9 K* u5 b6 I
secondary of the transformer, it shall be9 d, F1 g; J/ m. P5 s" @" l* P
- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as+ y$ y; Y0 l! F- c) z3 S
secondary); or
+ D" m" ?+ g9 z( {& o5 Y6 H7 [- 2 x Y1 capacitors6 a! |" H" j* s( V8 K8 @) R
; D* p' M5 Y+ D7 m" c8 M$ G) Q
If no any Y capacitors between the primary and the secondary of the
+ ]' e. N/ A6 M: u8 n( ptransformer, whether it will affect the reinforced insulation ?
. n$ u" H) e ^" z% z# V
4 _0 i7 e* K/ P0 ^! HVDE: no capacitor is accepted.% a. H! Z7 H/ @- ?
But please be reminded that in any case the requirement of clearance and
$ S3 [ S9 I v7 B0 o, _7 c7 n! a zcreepage shall be fulfilled. |
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