|
针对IEC 60335-1的家电类产品来说:+ Z4 \: f' G9 k/ c1 z9 E7 C
Y1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。2 S' i# ^; I4 R! [/ f
# B. \2 Y& C- B' K
22.42 Protective impedance shall consist of at least two separate components. If any one3 G9 C6 \! B+ ~ E
of the components is short-circuited or open-circuited, the values specified in 8.1.4 shall not& Y& Y: j% Y: g* e" @
be exceeded.1 U( N; C7 \- N) B N9 K
Component impedances shall be unlikely to change significantly during the lifetime of the: w* T) F- T; s9 {
appliance.) C/ P, N: P4 \: M, H# J" l
Compliance is checked by inspection and by measurement and if necessary, for resistors and @- }1 J: j/ w2 `% t e: u
capacitors by the following tests.
' \( V" A" Z% @Resistors are checked by the test of 14.1 a) in IEC 60065 and capacitors are checked by the+ T7 I- [" A5 h4 A
tests for class Y capacitors in IEC 60384-14 appropriate to the rated voltage of the appliance. |
|