请问IEC61347－2－1中15&16条是什么意思？

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IEC60335试验指甲

15 &16 Protection of associated components & Abnormal operation
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The ballast shall not impair safety when operated under abnormal conditions at any voltage between 90 % and 110 % of the rated supply voltage.
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Duration: 1h
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15.1 verified with dummy cathode resistors inserted and conditions of abnormal operation
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9 d0 i0 f- _9 U" Q2 j1 o' F15.2 conditions of abnormal operation, measured  from 5 s after the switch on or beginning of the starting process

1 j# a8 A" C: u7 r% f15.3 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.

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5 h! ], d" X$ Z1 O  A1 pc) the lamp does not start although the cathode circuits are intact (de-activated lamp);