Title :
Lightning induced voltages on buried shielded cables
Author :
Babu, R. Suresh ; Thomas, M. Joy
Author_Institution :
Dept. of High Voltage Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
This paper presents the horizontal electric fields computed at the ground surface and at different depths below the ground surface due to a nearby lightning stroke. Using the horizontal field thus calculated at various points, the induced voltage on a buried cable has been computed using a coupling equation, which incorporates the transfer impedance of the cable. The influence of ground parameters like conductivity and relative permittivity have been considered in the calculation of electric field and hence the induced voltages.
Keywords :
cable shielding; electric fields; lightning; underground cables; buried cable; buried shielded cables; conductivity; coupling equation; ground parameters; ground surface; horizontal electric fields; induced voltage; lightning induced voltages; lightning stroke; relative permittivity; transfer impedance; Cable shielding; Communication cables; Conductivity; Conductors; Earth; Electromagnetic fields; Equations; Geometry; Lightning; Low voltage;
Conference_Titel :
Electromagnetic Interference and Compatibility, 2003. INCEMIC 2003. 8th International Conference on
Print_ISBN :
81-900652-1-1
DOI :
10.1109/ICEMIC.2003.1287791
