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IMPACT OF SIGNAL RADIATION LEAKAGE ON POWER LINE COMMUNICATION SYSTEMS

Power Line Communication (PLC) is the usage of electrical power supply networks as a transmission medium for the transfer of various telecommunication services. However, PLC associated with the major cause of harmful interference (radiation leakage) to other users in transmission of information affects the full development and success of PLC. There is the need to develop a proper standard and regulations that will eliminate this problem globally. This study therefore, studies the impact of signal radiation leakage on Power Line Communication systems using Numerical Electromagnetic Code (NEC) method and field measurement to measure spacing along the power line and for measuring distance between the system frequencies in the power line. The result shows that the spacing between the wires on the power lines has effect on the radiation leakage. As wire spacing increases and external cancellation degrades, radiation escapes similar to those of long wire antennas. The result also shows that the frequencies of  power line operation lies between 444 kHz and 482 kHz. In general the PLC electric field along and near the power line decay with distance from the device but in at least one case, the electric field actually increased with increasing distance from the PLC device. Therefore, high levels of radiation suppression can be achieved only if the wires are very close together in terms of wavelength and balanced signals. Keywords : Power Line Communication(PLC) , Numerical Electromagnetic Code (NEC), Field Measurement, Electrical Power Network, Radiation Leakage, Frequency. DOI : 10.7176/MTM/9-8-02 Publication date : August 31st 2019