El dispositivo de puesta a tierra compuesto de acero revestido de cobre es una nueva tendencia de protección contra rayos en la ingeniería eléctrica
This paper discusses in detail the practicality of the new package composition. Using the cost performance ratio of investment, it expounds the low return on investment. Traditional grounding devices are made of galvanized steel. low cost. Large footprint. The cost of land acquisition is high. The welding process is backward. Poor stability. The service life … Lee mas