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Safety aspects of GSM systems on high-voltage towers: an experimental analysis

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4 Author(s)
van Waes, J.B.M. ; Dept. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands ; van Deursen, A.P.J. ; van Riet, M.J.M. ; Provoost, F.

Low-voltage (LV) applications mounted on high-voltage (HV) 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

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Power Delivery, IEEE Transactions on  (Volume:17 ,  Issue: 2 )