體育場照明應急電源裝置的特性(圖)
上傳人:李炳華 上傳時間: 2008-02-19 瀏覽次數: 660 |
中國建筑設計研究院 李炳華 王玉卿 王振聲 李戰贈 王烈 馬名東
摘要:對于特級或一級體育場,應急電視轉播需要應急電源為場地照明供電。我們通過對四種品牌2000W/380V金屬鹵化物投光燈的試驗、測量、數據分析,得出場地照明用應急電源裝置(EPF)必須具備的主要特性:第一,EPF的切換時間長短不能保證在電源轉換時金屬鹵化物燈不熄滅,除非切換時間為零;第二,金屬鹵化物燈具有不大于2倍額定電流,啟動時間長于2分鐘的啟動特性,EPF應能承受此沖擊;第三,燈端電壓變化對金屬鹵化物燈光輸出有很大的影響;第四,EPF供電時間大于10分鐘即可。據此,本文提出了場地照明應急電源裝置EPF的參數要求。
關鍵詞:EPF 場地照明 體育場 應急電源 金屬鹵化物燈 電源轉換
The research on the characteristics of emergency power facility of the field lighting of stadiums
Li Binghua, Wang Yuqing, Wang Zhensheng, Li Zhanzeng, Wang Lie, Ma Mingdong
China Architecture Design & Research Group
Abstract[LiBH1] : For a A+ class or A class stadium, the emergency power supply required by emergency TV broadcasting should provide power for emergency lighting. Through our tests, measurement and data analysis of four brands of metal halide lamps with 2000W/380V, we get the main features of emergency power facility for field lighting (EPF) as follows: Firstly, the switching time of EPF cannot ensure the light continuity of metal halide lamp during the power switching, as long as the switching time can not reach zero. Secondly, metal halide lamps should be no more than twice of the rated current value and yet longer than 2 minutes of start time, which EPF should endure. Thirdly, the voltage variation of lamp has great influence on the light output of the metal halide lamp. Over 10 minutes of EPF power supply time should be acceptable. Based on this, we bring forward the working principle and parameter requirements of EPF. Fourthly, because EPF will only be applied during power switching and the switching time of power supply is only a few seconds, in principle, over 10 minutes of EPF power supply time should be acceptable. Based on this, we bring forward the working principle and parameter requirements of EPF.
Keywords: EPF,field lighting,stadium,emergency power supply,metal halide lamp,power switching
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