高压线工频电磁污染状况调查-researchgate.pdf

See discussions, stats, and author profiles for this publication at: /publication/292986037 Investigation of Power-frequency Electric and Magnetic Fields Distribution of High Voltage Overhead Power Article in ournal of environmental health · November 2009 CITATIONS READS 0 65 1 author: Qiang Wang National instutes of Environmental Health, China CDC 20 PUBLICATIONS 50 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: public incidents involved with drinking water safety View project the 3rd national asthma survey in Chinese children aged 0-14 years View project All content following this page was uploaded by Qiang Wang on 05 February 2016. The user has requested enhancement of the downloaded file. 956 环境与健康杂志2009 年11 月第26 卷第11 期 J Environ Health, November 2009, Vol．26, No．11 · · 【论著】 （ ） 文章编号：1001-5914 2009 11-0956-04 高压线工频电磁污染状况调查 1 1 1 1 2 1 王强 ， 王俊 ， 曹兆进 ， 张淑珍 ， 李秋虹 ， 曲英莉 摘要：目的 了解高压线及居民区工频电磁辐射污染状况。方法 根据HJ/T24— 1998《500 kV 超高压送变电工程电 磁辐射环境影响评价技术规范》对距离高压线外边导线50 m 范围内不同距离处工频电场和磁场强度进行监测，同时对不 同负荷条件下高压线两侧100 m 内（高压线电磁污染区）及200 m 外（高压线电磁场相对无污染区）居室内工频磁场强度进 行监测。结果 高压线工频电磁场强度随着距离增加快速衰减，工频磁场强度与电负荷、塔高、监测点高度及距离密切相 关；高压线边导线外10 m 处工频电场强度最大，高压线边导线下工频磁场强度最大，76.5%监测值大于0.4 μT，边导线外50 m 处17.6%的工频磁场强度大于0.4 μT ；高压线污染区居室内工频磁场强度远高于相对无污染区，所有相对无污染区的居 室工频磁场强度均小于0.4 μT ，而污染区内62% 的居室工频磁场强度大于0.4 μT ，高压线电磁污染区居室内的工频磁场 强度高于相对无污染区（P0.001）；经多元回归分析，高压线电磁污染区居室内工频磁场强度与采样点距高压线距离和高 度相关（P0.001）