电能质量下降引发医疗设备故障的研究  

Medical equipment failure induced by poor quality of power

作　　者：仝青英[1] 孟晓东[1] 李振华[1] 乔桦[1] 郑莉莉[1] 

机构地区：[1]武警总医院医学工程科,北京100039

出　　处：《武警医学》2009年第5期438-440,共3页Medical Journal of the Chinese People's Armed Police Force

摘　　要：目的研究电能质量下降对医疗设备安全运行的影响和由其所引发的医疗设备故障。方法通过分析造成电能质量下降的原因,对比2005～2007年中的36个月内5类200台分属医院各科室的临床使用率高的A、B类中型电子设备的故障情况,参照同一时间段内电能质量监测结果进行归纳比较、分析,筛选出故障属性相同的数据。结果电力污染主要是由用电设备产生的,这些污染导致电能质量下降。由此而引发的故障中,电源部分的故障率最高,约占总故障的46.2%,控制部分的故障率约为42.5%,信号通道部分的故障率最低,约占11.3%。结论用电设备产生的谐波是电力污染的主要原因。电力污染导致的电能质量下降主要对医疗设备的电源和控制部分产生影响,由此引发的医疗设备故障剧增,对医疗设备的安全性产生了严重的负面影响。Objective To study the impact of poor power quality on medical equipment safety and failure. Methods The causes of power quality deterioration were analyzed. The failures of 200 medium - sized medical apparatuses with high atilization rates in various sections of the hospital within the 36 months from 2005 to 2007 were revieaed. The data of failures with identical attributes were screened out by contrasting the power quality monitoring results in the same period. Results The electric apparatuses bring about electric power pollutions,which cause the power quality deterioration. The failure rate produced by electric power pollutions of power part is the highest ,about 46.2%, followed by control part about 42.5%, and the signal channel part the lowest, about 11.3%. Conclusions Harmonic from electric apparatus is the primary canse of electric power pollutions. Power quality deterioration mostly affects the parts of power and control of medical equipments, there by dramatically increasing failures and producing severe negative effects on the safety of medical equipment.

关 键 词：电网 电能质量 电力污染 谐波 医疗设备 

分 类 号：R318.6[医药卫生—生物医学工程]