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请参考IEC 60950-1 clause 1.5.6:
/ U6 _- X7 O8 g9 j5 FA capacitor connected between two line conductors in a PRIMARY CIRCUIT, or between one line$ D" y2 x& u$ {1 P; B
conductor and the neutral conductor or between the PRIMARY CIRCUIT and protective earth+ B5 u% t9 Q0 [ @4 |* s
shall comply with one of the subclasses of IEC 60384-14 and shall be used in accordance
: D7 R v. }1 f/ u' Awith its rating. This requirement also applies to a capacitor bridging DOUBLE INSULATION or
2 l" l( R+ L- v! gREINFORCED INSULATION elsewhere in the equipment. The details of the damp heat, steady
8 E- Y. u6 J9 y0 O: _) v, o5 fstate test as specified in 4.12 of IEC 60384-14 shall be as follows:
1 @! V2 L6 M% T7 s+ w9 j− Temperature: 40 °C ± 2 °C;/ e2 _6 }6 B/ ]+ b9 Y- i, W0 B- i
− Humidity: 93 % ± 3 % relative humidity;1 h/ p B; M. S
− Test duration: 21 days.
' e! }/ z! G% o: sNOTE 1 Capacitors that have been subjected to a test duration longer than 21 days are considered to have met9 H' z) M* W/ _# T! V5 u
the test duration criteria.2 k+ k) n; J. z: i* \' `# f
The above requirement does not apply to a capacitor connected between a HAZARDOUS4 I3 ~1 U% f' U- L, G, \
VOLTAGE SECONDARY CIRCUIT and protective earth, where only BASIC INSULATION is required.
5 l1 ]! g0 T; b& v; W, `: MNOTE 2 The test of 5.2.2 still applies between the HAZARDOUS VOLTAGE SECONDARY CIRCUIT and protective earth./ j2 F. J$ w5 q8 }' E' L" R: q( Y
The appropriate capacitor subclass shall be selected from those listed in Table 1C, according
) Q, i' P0 r7 _* Xto the rules of application in the table.
: \+ o, W6 `# i( `+ `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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