. A# o5 T+ ~- b" _6 [如果是灯的呢?有没有这方面的经验或案例作者: wyq794 时间: 2016-3-3 09:40
不需要安规电容,但是做认证时,一般会控制其电容参数,比如额定电压,容量,温度; - l9 p! F g k% V. W举个例子,一般的小夜灯或者非隔离的电源,保险丝之后,很多采用的都是阻容降压方式工作的;直接用一个CBB电容并电阻然后带灯珠,即可正常工作。作者: nany 时间: 2016-3-16 09:40
可以没有这个容,但是如果有就一定要是安规电容,见24.1.1作者: ljh809809 时间: 2016-3-17 18:00
A capacitor connected between two line conductors in a PRIMARY CIRCUIT, or between one line h9 o& \) p& Z [$ j. K$ vconductor and the neutral conductor or between the PRIMARY CIRCUIT and protective earth) l' n3 j1 j: y# k; s! G1 h
shall comply with one of the subclasses of IEC 60384-14 and shall be used in accordance1 v4 [3 t, J$ U
with its rating. This requirement also applies to a capacitor bridging DOUBLE INSULATION or * j% ? ~* C9 n; O/ XREINFORCED INSULATION elsewhere in the equipment. The details of the damp heat, steady 6 u, O" J6 E& dstate test as specified in 4.12 of IEC 60384-14 shall be as follows: ' _' L6 s" z" U% p。。。 3 m) c! V2 x+ l Z) ^Rules for the application of Table 1C7 c; M5 o. S: {* G% _
1 Capacitors used to bridge BASIC INSULATION, SUPPLEMENTARY INSULATION or REINFORCED INSULATION shall be , x: k. W1 K D: e- c: d% Q, o8 ^8 }class Y except that it is permitted to bridge BASIC INSULATION in a SECONDARY CIRCUIT by a class X capacitor. % B; e) w5 o9 B& q; U- W& z2 For a single capacitor bridging FUNCTIONAL INSULATION, BASIC INSULATION, SUPPLEMENTARY INSULATION or# ? W" d" q! L7 u" ?
REINFORCED INSULATION, the voltage rating of the single capacitor shall be at least equal to the RMS WORKING% E' o" W9 B( b! Y8 w9 r
VOLTAGE across the insulation being bridged, determined according to 2.10.2.2. $ b6 ~: Y2 D! t, F) I) R这里强调的是L与L之间,L与N之间的绝缘是功能绝缘,而不在于电容前端是否有电阻,所以我个人认为嘴跨接在L与L之间或L与N之间的电容仍然是安规电容,需要符合IEC 60384-14的要求。. I s" r f) Y! R$ L6 F
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