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针对IEC 60335-1的家电类产品来说:) Y+ m/ N; \2 s2 Q. P' h
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。: g, s% U/ C- G3 O! ~& ]
, u7 W9 Q3 m9 n- {9 x
22.42 Protective impedance shall consist of at least two separate components. If any one
0 A2 u7 K6 H3 X4 j9 a1 X* Pof the components is short-circuited or open-circuited, the values specified in 8.1.4 shall not
& [6 `: Y$ }: p" Sbe exceeded.1 e# Q. s2 ~8 ^, v0 U8 |5 O
Component impedances shall be unlikely to change significantly during the lifetime of the
( E# \) m* ?, l- x; d2 ~: H, V% Cappliance.6 J: j4 `* }& T3 a) A* }& K
Compliance is checked by inspection and by measurement and if necessary, for resistors and
7 G& Q- M1 u6 Kcapacitors by the following tests.
& t/ S, B, H- i9 V/ r9 n8 gResistors are checked by the test of 14.1 a) in IEC 60065 and capacitors are checked by the2 D/ C2 _2 ^/ o; G' L
tests for class Y capacitors in IEC 60384-14 appropriate to the rated voltage of the appliance. |
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