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通过对福建电视台播出部2000年上半年的播出质量统计结果分析,外电引起的台外停播事故共11次总长度82秒,引起设备损坏一例。尽管电视台都已采取了双路供电保证供电安全,但外电闪跳或自动倒换备用电都会引起播出短时间的停止,这一现象仍无法回避,还是影响播出质量的一个因素。 双路市电供电一般采用自动倒换方式,当主电源中断时,主用电源自动倒换到备用电最快也需0.3秒时间,而实际影响播
Through the analysis of the broadcast quality statistics of the broadcasting department of Fujian TV station in the first half of 2000, the total number of out-of-station off-site accidents caused by foreign power was 82 in total for a total of 11 times, causing one case of equipment damage. Although the television stations have taken a dual power supply to ensure the safety of power supply, but the external flashback or automatic switching standby power will cause short-term broadcast stop, this phenomenon is still unavoidable, or affect the broadcast quality of a factor. Two-way mains power supply is generally used automatic switching mode, when the main power supply is interrupted, the main power automatically switch to the standby power also takes 0.3 seconds, and the actual impact of broadcast