标题: 请问IEC61347－2－1中15&16条是什么意思？ [打印本页] 作者: tongjing18 时间: 2007-12-6 08:32 标题: 请问IEC61347－2－1中15&16条是什么意思？ 15 &16 Protection of associated components & Abnormal operation ' L/ ~7 I% U/ X. z" A+ Y/ W U* q) ^
The ballast shall not impair safety when operated under abnormal conditions at any voltage between 90 % and 110 % of the rated supply voltage.# p3 g4 B) @4 t+ x( V) k; M) w
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Duration: 1h9 o2 W! m/ k1 _
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* ]4 v% K) U/ V4 o! z2 z$ i15.1 verified with dummy cathode resistors inserted and conditions of abnormal operation+ y* ?9 A* ^; c/ w3 `6 \; [
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15.2 conditions of abnormal operation, measured from 5 s after the switch on or beginning of the starting process 4 I7 O4 U* W( ]) A, |$ i" y % M& K t' p' {/ f& ^: X) r6 h: g15.3 For a period longer than 30 s after switch-on, or beginning of the starting process. For ballasts which make more than one attempt to start a failed lamp, the combined duration of voltages above the maximum working voltage for which the ballast is declared shall not exceed 30 s.2 d- H$ _ d' f- T7 b
( e1 O8 k/ ` a% ~ / r9 r% C L& D) [4 G8 P : O- G0 l6 f! N0 Nc) the lamp does not start although the cathode circuits are intact (de-activated lamp);