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针对IEC 60335-1的家电类产品来说:
# w$ p5 v# ~) W9 NY1或Y2都可以。如果使用则至少需要2个或以上,需要考虑任何一个开路或短路的情况。
+ N6 z3 X1 [- p- }- c# H# r, T' l
3 |' i( `/ q! f8 r7 }" l& y4 Y8 K0 N22.42 Protective impedance shall consist of at least two separate components. If any one
& \2 m. a% n- `( W" y) K% f6 iof the components is short-circuited or open-circuited, the values specified in 8.1.4 shall not- T% X. u I4 l$ u0 t+ K6 e
be exceeded.0 e/ w( a9 U, \& |& @. S
Component impedances shall be unlikely to change significantly during the lifetime of the
9 k+ Z: G5 c, T4 H8 V6 ?. R* kappliance.
5 {( m2 ^5 z& {Compliance is checked by inspection and by measurement and if necessary, for resistors and
, ]4 L _3 W! e+ F8 Bcapacitors by the following tests.! P @# U8 X" U$ ^& t" {
Resistors are checked by the test of 14.1 a) in IEC 60065 and capacitors are checked by the. c2 K- h/ m$ ?$ D
tests for class Y capacitors in IEC 60384-14 appropriate to the rated voltage of the appliance. |
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