METHOD OF CONSTRUCTING DISTRIBUTION LINE USING EXTRA-HIGH VOLTAGE NEUTRAL LINE COMBINED WITH OVERHEAD EARTH WIRE HAVING SEPARATE INSTALLATION STRUCTURE OF EXTRA-HIGH VOLTAGE NEUTRAL LINE AND LOW-VOLTAGE NEUTRAL LINE

摘要

The present invention relates to a distribution line, and more particularly, to a method of constructing a distribution line using an extra-high voltage neutral line combined with an overhead earth wire having a separate installation stucture of the extra-high voltage neutral line and a low-voltage neutral line for improving electric power quality, in which a distribution line simultaneously perform functions of an overhead earth wire for shielding lightning, an extra-high voltage neutral line for returning unbalanced currents and fault currents and an optical communication line for establishing a communication network, such that a number of disconnections of power lines is reduced by reducing surge voltage thereby achieving excellent lightning shielding effects such as improved power quality, etc., construction costs are reduced, load is reduced, construction quality is improved, and aesthetic features of the urban area is improved by simplifying the distribution equipment, and the overhead earth wire, the extra-high voltage neutral line and the optical communication line are prevented from being disconnected, and communication companies can achieve high profits by lending the optical communication lines, and the power epuipment can provide hig added value by reducing communication line costs through securing its own communication networks, and a connection between different types of metals of a secondary lightning conductor (copper) and an extra-high voltage neutral line (aluminum) is prevented form being disconnected.