摘要
为探讨高压输电线路下的电磁环境问题,对110kV高压输电线路的工频电磁场进行了理论研究和实际测量.利用模拟电荷法,计算了工频电场强度,而且通过建立合适的模型,对工频磁场进行了计算.得出结论:在地面附近高度,电场强度主要由垂直分量决定,而磁感应强度由水平和垂直分量共同决定.由HJ/T24-1998可知,电场强度的推荐标准是4kv/m,磁感应强度限值是0.1mT,此次计算和测量值都远远小于国家标准.研究结果减少了人们对高压线下生活的恐惧心理,具有现实意义.
In order to study the environmental problem under high voltage transmission lines, electromagnetic field around 110 kV high voltage transmission lines were theoretically calculated and measured. Using method of simulation electric charge, we calculated electric field strength, and also computed magnetic field strength. It drew a conclusion that electric field was depended on vertical field strength, but magnetic field was depended on vertical field strength and horizontal field strength. Compared to HJ/T24-1998 where the recommendation standard of electric field is 4 kV/m and limited value of magnetic field strength is 0.1 mT, value of calculating and measure are lower national standard. Result will help paper reduce people' s dread mind, who live near the high voltage transmission lines, and has realizable meaning.
出处
《北京工业大学学报》
CAS
CSCD
北大核心
2005年第3期308-312,共5页
Journal of Beijing University of Technology
基金
北京市自然科学基金资助项目(4031003-1).
关键词
高压输电线路
工频电磁场
环境评价
high-voltage transmission line
power frequency electromagnetic field
environmental assessment
