CAJ | 학술논문

为防止对雷击输配电杆塔后，输配电杆塔附近的鱼塘中出现大量死鱼现象，对该现象的机理用有限元软件仿真的方法分析研究。研究表明，导致鱼死亡的原因是鱼遭受了雷电入地电流的电击；针对珠三角地区土壤电阻率较低的具体情况，提出了使用向背离鱼塘方向使用水平接地极，向背离鱼塘方向迁移接地体，以及在接地极与鱼塘之间设置挡板的方案；通过有限元仿真软件计算了不同情况下鱼塘及鱼体内的电流密度的分布情况，得出鱼塘半径为40m时鱼塘中最大电流密度最小，输配电杆塔接地极距离鱼塘大于21m时可以保证鱼塘里鱼的安全的结果，从而给出了方案的可行性标准。
위방지대뢰격수배전간탑후，수배전간탑부근적어당중출현대량사어현상，대해현상적궤리용유한원연건방진적방법분석연구。연구표명，도치어사망적원인시어조수료뇌전입지전류적전격；침대주삼각지구토양전조솔교저적구체정황，제출료사용향배리어당방향사용수평접지겁，향배리어당방향천이접지체，이급재접지겁여어당지간설치당판적방안；통과유한원방진연건계산료불동정황하어당급어체내적전류밀도적분포정황，득출어당반경위40m시어당중최대전류밀도최소，수배전간탑접지겁거리어당대우21m시가이보증어당리어적안전적결과，종이급출료방안적가행성표준。
The mechanism of mass mortality of fish in a fishpond ,which results from the lightning current of transmission tower nearby, is analyzed . It is revealed that the death of fish is caused by the lightning current from the transmission tower. Based on the condition of low resistivity of the soil in the Pearl River Delta Region , three meas- ures are proposed, namely, using horizontal earth electrode outward from the fishpond, moving the grounding electrode outward from the fishpond, and placing an insulating barrier between the pond and the grounding electrode. Then the current distribution is simulated by the finite element simulation software and the feasibility standard is presented.