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Development/Application of AC Electromagnetic Field Meter

交流电磁场计的开发/应用

基本信息

批准号：
07045024
负责人：
NAITO Katsuhiko
金额：
$ 2.75万
依托单位：
Nagoya Institute of Technology
依托单位国家：
日本
项目类别：
Grant-in-Aid for international Scientific Research
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07045024/
关键词：
Electric field Magnetic field Power frequency Time-integration Substation Transmission line Shielding effect Biological effect 商用周波数積分値

项目摘要

With the increase in transmission line voltage and in the number of the elelctrical home appliance, etc., the biological effect of electromagnetic field produced by the power frequency apparatus began to be discussed. Under such a circumstance, various experiments are being made and some guidelines and standards have been established in certain areas, such as radio frequency electromagnetic field, power frequency electrostatic field, etc. As for power frequency magnetic field, however, much more accumulation of information is required for establishing guidelines and standards reliable enough.In the present work, (1) electric and magnetic fields measurement around power facilities, (2) measurement of time-integrated electric and magnetic fields to which human body is exposed, were investigated under a close cooperation between Japanese and Indonesian Universitites.The main results obtained are as follows :(1) Electric and magnetic fields inside 500-kV substation and under 500-kV transmission line in Indonesia are almost the same with those in Japan. Besides, the values are lower than that prescribed in international guidelines.(2) Electric and magnetic fields in resident area adjacent to power facilities in Indonesia and Japan are significantly low compared with those in international guidelines.(3) A portable electric field sensor was developed, which is suitable for the measurement of time-integrated electric field to which human being is exposed.(4) Time-integrated electric and magnetic fields, to which technicians of power facilities are exposed during their routine work, were significantly low compared with prescription of international guidelines.(5) The field shielding effects by the artificial structures and natural plants were clearly observed.

随着输电线路电压的增加和家用电器数量的增加等，工频仪产生的电磁场的生物效应开始被讨论。在这种情况下，人们正在进行各种实验，并在某些领域建立了一些指南和标准，如射频电磁场、工频静电场等。然而，对于工频磁场，要建立足够可靠的指导方针和标准，需要积累更多的信息。在本研究中，通过日本和印度尼西亚大学的密切合作，研究了(1)电力设施周围的电场和磁场测量，(2)人体暴露的时间积分电场和磁场测量。主要研究结果如下：(1)印度尼西亚500kv变电站内部和500kv输电线路下的电场和磁场与日本基本相同。此外，该数值低于国际准则规定的数值。(2)印度尼西亚和日本电力设施附近居民区的电场和磁场明显低于国际准则。(3)研制了一种便携式电场传感器，适用于人体暴露时积分电场的测量。(4)电力设施技术人员在日常工作中所暴露的时间积分电场和磁场与国际准则的规定相比明显偏低。(5)人工构筑物和天然植物对农田的屏蔽作用明显。