工频状态下电磁辐射的防护措施

郑大宇（中国航空规划设计研究总院有限公司，北京市 100120）

Protective Measures against Electromagnetic Radiation in a Power Frequency Condition

ZHENG Dayu(China Aviation Planning and Design Institute(Group)Co.,Ltd.,Beijing 100120，China)

Abstract：Data about the electric field intensities and magnetic induction intensities in and close to distribution substations in a power frequency condition are measured on sites and compared with the related indexes in the applicable national codes,in a bid to check the necessity to take protective measures. Effects of different protective measures against electromagnetic radiation are checked by comparing with the measured data about electric field intensities and magnetic induction intensities while the said protective measures are not taken.

Key words：electromagnetic radiation;power frequency condition;electric field intensity;magnetic induction intensity;exposure limit for the public;measured data;protective measures;protection effect

摘　要：通过现场实际测量，取得工频状态下配变电站内部及周边电场强度和磁感应强度的实测数据；与现有国家规范指标进行对比，评估是否需要采取防护措施。通过采取不同电磁辐射防护措施，与未采取防护措施电场强度和磁感应强度的实测数据进行比较，检查其防护效果。

关键词：电磁辐射；工频状态；电场强度；磁感应强度；公众曝露控制限值；实测数据；防护措施；防护效果

中图分类号：TM410       　　　   文献标识码：A

doi：10.3969 / j. issn.1003 － 8493.2021.07.009