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IEC 60335-1 要求至少两个,一个Y1电容是不认可的。* @+ e5 k/ x6 b+ r
22.42 Protective impedance shall consist of at least two separate components whose - Q' L7 W& Z. g5 G, `/ b' U' E9 ~
impedance is unlikely to change significantly during the lifetime of the appliance. If any one of
' x6 e( l( n" \% ? r! rthe components is short-circuited or open-circuited the values specified in 8.1.4 shall not be exceeded. & k( \1 d' \, K' S0 C( X ^
NOTE Resistors complying with test a) of subclause 14.1 of IEC 60065 and class Y capacitors complying with 9 ]' g9 G& p/ N( W2 Z
IEC 60384-14 are considered to be components having a sufficiently stable impedance.
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/ l+ Z O3 }5 r4 q/ a, @8 ^0 vIEC 60950和IEC 60065好像是可以接受一个Y1电容结构的。 |
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