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| 2 20 kV高压输电线电磁辐射水平及防护距离预测 |
| Radiated Em ission Levelfrom the 220 kV High - voltage Transm ission Line and Estimation of Protection D istance |
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| DOI： |
| 中文关键词: 高压输电线 电磁辐射 预测模式 |
| 英文关键词: High- voltagetransmission line Radiated emission Prediction models |
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| 摘要点击次数: 1344 |
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| 中文摘要: |
| 依据《500 kV超高压送变电工程电磁辐射环境影响评价技术规范》(HJ/T 24-1998) 中的预测模式对监测点周围地面1.5 m处工频电场进行了验证性监测, 表明实际测定结果与理论计算结果基本吻合。 通过对220 kV双回同相、双回逆相和单回线路下地面1.5 m 、4.5 m 、和7.5 m 处工频电场变化趋势分析, 预测了220 kV 高压输电线产生的电磁辐射水平, 以及不同房屋结构的防护距离。提出了220 kV高压输电线电磁辐射的防护措施。 |
| 英文摘要: |
| Accordingto “ 500 kV Ultrahigh voltage To deliver Changes Electricity Project Electromagnetic radiation environmentaleffectassessmenttechnology standard ” (HJ/T 24 -1998) theconfirmationisperformed powerfrequency electric field on the1.5 m ground aroundthe monitoringsite bythe forecastpattern. Theresult confirmedthesameelectricfieldintensityofactually determination andthetheoreticalcalculation. From the vari anceofpowerfrequency electric field on 1.5 m, 4.5 m, and 7.5 m ground ofdouble phase circuitand single phase circuitto find the electromagnetic radiation levelsand protection distanceofdifferentbuilding frame. The protective measureof220 kV high- voltagetransmission line electromagnetic radiation wasintroduced. |
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