The Analysis of the Sag distance for supplying the High Voltage of the Stranded Aluminium

摘要

Most of the wires used in high voltage systems, above ground use 400 square millimeters of all-aluminum conductor (AAC) cable. Which has excellent corrosion resistance properties, but if there is power in the system and the temperature rises over a period of time. It can adversely affect the strength of the electric cable and the higher the tension inside the cable. This is a direct consequence of the looseness of the electric wire. This causes a reduced electrical safety distance and a shorter cable life. Therefore, it is important to know the overcurrent rating, IEC1597 and IEEE738 Standards are applied. Come for comparison to consider in the analysis of rated current that can cause fatigue and loss of strength, elevated temperature and suitable sag for the distribution system.