Title :
The screening effects of the buried shield wires
Author :
Lu, Yinghua ; Gao, Yougang
Author_Institution :
Beijing Univ. of Posts & Telecommun., China
Abstract :
When lightning strikes the ground near an optical fiber cable, there may be a discharge between the stroke point and the cable or it may induce currents and voltages on the metal structures of the optical cable. The buried shield wires laid close by the cable can reduce the harmful effects of the lightning. This paper uses the theory of earth conduction effects in a transmission system to analyze this problem. The closed form theoretical formulae for the screening effects of the buried shield wires are given
Keywords :
cable sheathing; electromagnetic induction; electromagnetic shielding; lightning; optical cables; wires (electric); buried shield wires; closed form theoretical formulae; discharge; earth conduction effects; induced currents; induced voltages; lightning; metal structures; optical fiber cable; screening effects; transmission system; Cable shielding; Conductors; Earth; Electric breakdown; Equations; Grounding; Impedance; Lightning; Soil; Wire;
Conference_Titel :
Electromagnetic Compatibility, 1995. Symposium Record., 1995 IEEE International Symposium on
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-3608-9
DOI :
10.1109/ISEMC.1995.523628
