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请参考IEC 60950-1 clause 1.5.6:- a9 _: @0 A" e+ H$ a
A capacitor connected between two line conductors in a PRIMARY CIRCUIT, or between one line
3 C4 V, J& }/ H6 M7 j' {, {6 l. Wconductor and the neutral conductor or between the PRIMARY CIRCUIT and protective earth
' o/ N0 D5 y% D4 Q0 e+ ^shall comply with one of the subclasses of IEC 60384-14 and shall be used in accordance
) \, ?4 J4 K8 J' a3 ^) U0 ewith its rating. This requirement also applies to a capacitor bridging DOUBLE INSULATION or
: @; N' J$ m% X7 C, ^% uREINFORCED INSULATION elsewhere in the equipment. The details of the damp heat, steady
5 \0 G! p1 E/ |3 |state test as specified in 4.12 of IEC 60384-14 shall be as follows:
0 {" ?! W! t- W ~/ t& O# a− Temperature: 40 °C ± 2 °C;
+ K+ s7 I2 N3 R4 n6 i4 X− Humidity: 93 % ± 3 % relative humidity;5 w) N6 |3 M5 q# \4 ^7 J
− Test duration: 21 days.+ r7 z: ?( h. F- ^, v
NOTE 1 Capacitors that have been subjected to a test duration longer than 21 days are considered to have met5 p$ T, J- t0 V" U+ T
the test duration criteria.
4 K6 g; n& M9 i, sThe above requirement does not apply to a capacitor connected between a HAZARDOUS0 q7 \/ A" w/ |- p b
VOLTAGE SECONDARY CIRCUIT and protective earth, where only BASIC INSULATION is required.! R( z. e+ A3 \: h0 w1 s) [
NOTE 2 The test of 5.2.2 still applies between the HAZARDOUS VOLTAGE SECONDARY CIRCUIT and protective earth./ z$ R, J7 X- V- R% t& U
The appropriate capacitor subclass shall be selected from those listed in Table 1C, according2 [. Z$ z, r. S. F" Q; u
to the rules of application in the table." o6 T, m0 K9 J3 f, J9 H: | k9 W( P
表格不会贴，所以还是自己找60950的标准好好看一下 |
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发表于 2011-5-16 15:51
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