Forecasting of compact fluorescent lamps lifetime on the results of their test mode of frequent switching on
Journal Title: Науковий вісник полтавського університету економіки і торгівлі. Серія Технічні науки - Year 2016, Vol 1, Issue 78
Abstract
Purpose. The work shows the possibility of estimation the average lifetime of compact fluorescent lamps based on the average resource of turning on lamps to failure. Methods.For accele rated evaluation of resource characteristics CFLs was considered a model of lamps in modes of frequent inclusions, as the duration of combustion is determined mainly by the speed of spending emission cathode material, which is most intense when the lamps are turned on. Results. To shorten the test term when assessing the average resource of lamps switching on statistical methods of early assessment of the distribution failure rate were applied by using graphical method coordinates “the number of inclusions –the probability of failures”. In these coordinates the probability of failure rate (for normal distribution) looks like a straight line, which allows to determine the average value of inclusions at the unfinished lamps tests by means of small number of experimental points of starting area. Using the proposed method six parties of CFLs were tested on the average resource of switching on and a forecast was made about the average lifetime of lamps in their normal functioning. Conclusions. It is shown that in five parties investigation the average lifetime is not lower than that declared by producers. Continuation directions of these studies are considered.
Authors and Affiliations
G. Kozhushko, Y. Basova, L. Guba, S. Kyslytsia
Keywords
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