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《Advanced Technology of Electrical Engineering and Energy》 2001-02
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Calculation method of electromagnetic shielding effects of underground pipelines to communication cables

ZHOU Yu kun, MA Xin shan (Tsinghua University, Beijing 100084, China)  
An electromagnetic shielding calculation model of underground conductors is presented, which takes the inductive coupling and the resistive coupling into account simultaneously. The traditional electromagnetic shielding calculation method is improved by changing interpolating function with pipeline node currents in place of pipeline element currents. Based on the model, the electromagnetic shielding effectiveness of the buried pipeline to communication cables is calculated and the regularity of electromagnetic shielding effectiveness is discussed. The calculation results show that the dimension of pipeline and grounding resistances will affect shielding effectiveness.
【CateGory Index】: TM154
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