温度、湿度与输油站工人工频电场强度关系的现况分析  

Status analysis on relationship between temperature,humidity and power frequency electric field intensity of oil transportation station workers

作　　者：刘多见 尚翠 彭金红 王丹 LIU Duo-jian;SHANG Cui;PENG Jin-hong;WANG Dan(Occupational Health Technology Service Center,China National Petroleum Corporation,Langfang Hebei,065000,China;National Institute for Viral Disease Control and Prevention,Chinese Center for Disease Control and Prevention,Beijing,102206,China)

机构地区：[1]中国石油集团石油职业卫生技术服务中心,河北廊坊065000 [2]中国疾病预防控制中心病毒病预防控制所,北京102206

出　　处：《职业与健康》2021年第8期1012-1015,共4页Occupation and Health

摘　　要：目的了解输油站内工人工频电场强度与温度、湿度之间的关系,从而为准确测量工频电场和预防其可能产生的人体危害提供一定的参考依据。方法采用横断面分析的方法,收集2015—2017年输油站110 kV变电所变压器和开关场的工频电场强度、温度和湿度值。本次分析共收集到变压器组数据35例,开关场组38例,按一定温度或湿度范围对数据进行分组,分析一定温度范围内工频电场强度与湿度之间的关系和一定湿度范围内工频电场强度与温度的关系。结果湿度范围为67~77%RH时,变压器工频电场强度有随温度升高而升高的趋势(r=0.786,P<0.05);湿度在73~83%RH范围内时,开关场工频电场强度有随温度升高而升高的趋势(r=0.723,P<0.05)。在一定温度范围内,变压器和开关场的工频电场强度与湿度之间没有相关关系。结论在一定湿度范围内,输油站主变压器和开关场工频电场强度有随温度升高而升高的趋势,具体特征有待进一步实验室论证。在一定温度范围内,未发现湿度与输油站工频电场强度的关系。Objective To investigate the relationship between temperature,humidity and power frequency electric field intensity of oil transportation station workers, provide a certain basis for accurate measurement of power frequency electric field intensity and prevention of its possible human body impairment. Methods A cross-sectional study method was used to collect the power frequency electric field intensity,temperature and humidity of transformer and switching yard in 110 kV substation of oil transportation station from 2015 to 2017. This study collected transformer data of 35 cases and switching yard data of 38 cases.The data were divided into groups according to a certain temperature or humidity range,the relationship between the power frequency electric field intensity and humidity in a certain temperature range was analyzed,and the relationship between the power frequency electric field intensity and temperature in a certain humidity range was analyzed. Results When the humidity was67-77 %RH,the power frequency electric field intensity of transformer tended to increase with the increase of temperature(r=0.786,P<0.05). When the humidity was 73-83 %RH the power frequency electric field intensity of switching yard tended to increase with the increase of temperature(r=0.723,P<0.05). In a certain temperature range,there was no significant correlation between the power frequency electric field intensity of the transformer and the switching yard with the humidity. Conclusion In a certain humidity range,the power frequency electric field intensity of the transformer and the switching yard in the oil transportation station tends to increase with the increase of the temperature,and the specific characteristics need further laboratory demonstration. In a certain temperature range,there is no relationship between humidity and power frequency electric field intensity of oil transmission station.

关 键 词：工频电场强度 温度 湿度 输油站 关系 

分 类 号：R135.99[医药卫生—劳动卫生]