RESEARCH OF BRANCH LOAD IMPEDANCE INFLUENCE ON THE DATA RATE OVER THE NETWORKS BUILT ON THE HOUSE ELECTROWIRING

Abstract

This article is dedicated to research of Broadband over Power Lines (BPL) transmission systems (TS) when working on domestic electrical wiring networks built with PPV type wire. The object of research is the component of domestic electrical wiring network (DEWN) – branch. The influence of load impedance of the branch on attenuation of fragment of DEWN in the cases of the idle, short circuit, resistance and reactance load was reviewed previously. The influence of load impedance of the branch on data transmission rate is investigated in the article. Calculations are carried out and the results of research of harmful interference and data transmission rate, achievable with different types of load impedance on the branch on fragment of DEWN, built with PPV type wire (the cross-sectional area of the conductor is 1,5 mm) in the case of various levels of additive noise are given. The dependences between the harmful interference and values of capacitance or inductance when the capacitance or inductance is a load on the branch on fragment of DEWN are analyzed. The comparison of data transmission rate, achievable with different types of load impedance on the branch is carried out. The character of dependence between the data transmission rate and load impedance of the branch of the fragment of DEWN and conditions for achieving the maximum data transmission rate over the fragment of DEWN is defined. The dependences of data transmission rate from the level of additive noise on the fragment of DEWN with different types of load impedance on the branch on fragment of DEWN, built with PPV type wire (the cross-sectional area of the conductor is 1,5 mm) are discovered.