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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# y: Z9 b" w) i) J5 Q# F% [In order to meets the reinforced insulation requirement( refer to6 P& r1 ?. J6 o* Q
IEC60335-1 22.42), whether shall be at least add 2 Y capacitors between$ a( C3 Q8 _5 ]( U# Y) Y' h
the primary and the secondary of the transformer ?
$ z" v+ Z9 @# I( ]3 X! O
: w! j1 [" ^% V- X/ Q- A- t8 g' V9 kVDE: if there are any capacitors connect between the primary and the \5 s* L, U4 K# ^7 r
secondary of the transformer, it shall be
0 v( l& O& r( O3 F. N+ ^) C4 t( y- Y2 (basic insulation, at primary)+ Y1 (supplementary insulation, as
) h) M3 @4 D l3 q; ]( R$ ~secondary); or
y; E K; v2 m3 C- 2 x Y1 capacitors) f' B: T/ F e1 e2 U6 W, i
' s/ T! i C% Z* W- JIf no any Y capacitors between the primary and the secondary of the, q* A4 f) Z* `5 \# q8 i; J
transformer, whether it will affect the reinforced insulation ?$ J6 g8 s t! O# ~* @; k
j; ?1 Z9 J+ A/ a0 z( ~7 K3 gVDE: no capacitor is accepted.4 F4 r. Y" x0 W# J( k, ~
But please be reminded that in any case the requirement of clearance and
0 U0 [/ W: m2 U* N. ~: H! x# D% Jcreepage shall be fulfilled. |
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