NDLI: Lightning strike on overhead telephone line: A case study of tanzania telecommunication company limited (TTCL)

Content Provider	IEEE Xplore Digital Library
Author	Damas, J. Mvungi, N.H. Manyahi, M.J.
Copyright Year	2007
Description	Author affiliation: Univ. of Dar es Salaam, Dar es Salaam (Damas, J.; Mvungi, N.H.; Manyahi, M.J.)
Abstract	Recently there have been a growing concern over the lightning caused damages, and disturbances on the consumer operated equipments utilizing a telephone line. This concern has been attributed by the fact that most of today's consumers' equipments comprise of electronic devices or microprocessor controls that operate at low voltages, which can be superceded by even distant lightning strike. Lightning strike can be either direct or indirect, which causes induced voltage along the telephone lines when it strikes on to the line or at a distance from the line. In this paper the induced voltages on a conductor of 7 m height above the ground are calculated as a function of distance from the strike point using Finite Difference Time Domain (FDTD) method, as it could be a necessary data for deciding the possible future protection scheme. It has been shown that finitely conducting ground (lossy case) has pronounced effects for lightning surge propagation and induced amplitude overvoltages along the telephone line above the ground and can not be neglected in the calculations of the induced overvoltages along the line due to lightning strike compared to an infinitely conducting ground (lossless case).
Starting Page	1
Ending Page	7
File Size	864226
Page Count	7
File Format	PDF
ISBN	9781424409860
DOI	10.1109/AFRCON.2007.4401581
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-09-26
Publisher Place	South Africa
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Lightning Telephony Surge protection Finite difference methods Propagation losses Microprocessors Lighting control Voltage control Telecommunication control Low voltage Transient ground impedance Direct and Indirect lightning strikes Finite Difference Time Domain (FDTD) Telegrapher’s equations
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Voltages induced on an overhead wire by lightning strikes to a nearby tall grounded object (2006)

Characteristics of the induced currents in horizontal conductors due to a nearby lightning strike

Calculation of lighting-induced voltage on an overhead line

Lightning surge impedance measurement on control building using Electromagnetic Transient Program

FDTD Simulation of Lightning Surges on Overhead Wires in the Presence of Corona Discharge

Calculation of Lightning Induced Voltages on a Line over Finitely Conducting Ground

SPD dimensioning in front of indirect flashes to overhead low voltage power lines

Lightning induced voltages on overhead lines above an inhomogeneous ground

Lightning Transients in Low-Voltage Installations Inside Different Types of Class II Lightning Protection Systems

Lightning strike on overhead telephone line: A case study of tanzania telecommunication company limited (TTCL)

Similar Documents

Voltages induced on an overhead wire by lightning strikes to a nearby tall grounded object (2006)

Characteristics of the induced currents in horizontal conductors due to a nearby lightning strike

Calculation of lighting-induced voltage on an overhead line

Lightning surge impedance measurement on control building using Electromagnetic Transient Program

FDTD Simulation of Lightning Surges on Overhead Wires in the Presence of Corona Discharge

Calculation of Lightning Induced Voltages on a Line over Finitely Conducting Ground

SPD dimensioning in front of indirect flashes to overhead low voltage power lines

Lightning induced voltages on overhead lines above an inhomogeneous ground

Lightning Transients in Low-Voltage Installations Inside Different Types of Class II Lightning Protection Systems

Lightning strike on overhead telephone line: A case study of tanzania telecommunication company limited (TTCL)