Safety Aspects of GSM Systems on High-Voltage Towers: An Experimental Analysis

Low-voltage applications mounted on high-voltage towers may pose a safety problem in the low-voltage network when a flashover occurs over the high-voltage insulators. To study the effects experimentally, a 150 kV system was made available. On a high-voltage tower carrying a cellular phone base stati...

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Bibliographic Details
Published in:IEEE power engineering review 2002-03, Vol.22 (3), p.63-63
Main Authors: Van Waes, J. B. M., Van Deursen, A. P. J., Van Riet, M. J. M., Provoost, F.
Format: Article
Language:English
Subjects:
Base stations
Cell phones
Cellular phones
Current distribution
Current measurement
distribution networks
electric shocks
electrical faults
Electronic equipment
EMC
Flashover
grounding
GSM
Insulation
Insulators
Mathematical analysis
overvoltage
Poles and towers
Safety
Stations
Towers
transmission lines
Voltage
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Summary:Low-voltage applications mounted on high-voltage towers may pose a safety problem in the low-voltage network when a flashover occurs over the high-voltage insulators. To study the effects experimentally, a 150 kV system was made available. On a high-voltage tower carrying a cellular phone base station, one phase insulator was shorted to the tower. A current of about 200 A was injected into that phase at a large distance. We measured the current distribution and the relevant voltages in the low-voltage net. The experimental current data agree with EMTP calculations. Appropriate measures to guarantee safety for persons and electronic equipment are discussed.
ISSN:0272-1724
1558-1705
DOI:10.1109/MPER.2002.4312090