不同类型镇流器对紫外线灯辐照强度的影响

Effect of different types of ballast on radiation intensity of ultraviolet lamp

目的探讨不同类型的镇流器对紫外线灯辐照强度的影响。方法将紫外线灯管分别安装在电子镇流器和电感镇流器的灯架上,用紫外线辐射强度监测仪监测紫外线灯辐照强度并进行分析。结果2018年8月在相同温度、湿度、电压条件下,使用同一紫外线灯管,某新建科室27支新紫外线灯管分别使用电子镇流器和电感镇流器的平均辐照强度为(67.85±6.51)μW/cm^(2)、(109.07±7.43)μW/cm^(2),合格率分别为0、100%;两组平均辐照强度、合格率比较,差异均有统计学意义(均P<0.05)。2018年10月某院各病区使用中的282支紫外线灯均是电子镇流器,共有8个厂家;其中92支紫外线灯管的平均辐照强度为(103.14±22.35)μW/cm^(2),更换为电感镇流器后,平均辐照强度为(123.50±13.80)μW/cm^(2);更换前后紫外线灯平均辐照强度比较,差异有统计学意义。结论镇流器类型对紫外线灯辐照强度有影响,医院紫外线灯应选用电感型镇流器,提高紫外线灯幅照强度。

Objective To evaluate the effect of different types of ballast on radiation intensity of ultraviolet(UV)lamp.Methods UV lamps were installed on the lamp frames of electronic ballast and inductance ballast respectively,the radiation intensity of UV lamp was monitored and analyzed by ultraviolet radiation intensity monitor.Results In August 2018,at the same temperature,humidity and voltage,the average radiation intensity of 27 new UV lamps using electronic ballast and inductance ballast in a new department were(67.85±6.51)μW/cm^(2) and(109.07±7.43)μW/cm^(2) respectively,with the qualification rates of 0 and 100%respectively;there were significant differences in average radiation intensity and qualified rate between two groups(both P<0.05).In October 2018,282 UV lamps used in each ward of a hospital were all electronic ballast,with a total of 8 manufacturers;the average radiation intensity of 92 UV lamps was(103.14±22.35)μW/cm^(2),and the average radiation intensity was(123.50±13.80)μW/cm^(2) after replacing with inductance ballasts;difference was statistically significant before and after replacement.Conclusion The types of ballast has an effect on the radiation intensity of UV lamp,inductance ballast should be selected for UV lamp in hospital to improve the radiation intensity of UV lamp.