International Science Community Association Research Journal of Engineering Sciences 2278-9472 13 2 2024 05 26 Electrical and mechanical study of a medium-voltage overhead distribution line 10 19 EN Manike M.M.A.P. 1 Department of Agricultural Engineering, Faculty of Agriculture, Eastern University, Sri Lanka Krishnananthy G.R. 2 Department of Agricultural Chemistry, Faculty of Agriculture, Eastern University, Sri Lanka Rajendran M. 3 Department of Agricultural Engineering, Faculty of Agriculture, Eastern University, Sri Lanka NOUNANGNONHOU Cossi Télesphore 1 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin and Laboratory of Electrotechnics, Telecommunications and Applied Informatics (LETIA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Bénin SEMASSOU Guy Clarence 2 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin TOSSA Kossoun Alain 3 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin ASSOGBA Maryse 4 Laboratory of Energetics and Applied Mechanics (LEMA), University of Abomey-Calavi, 01 BP 2009 Cotonou, Benin > Research Paper 2023 10 12 2024 05 26 The Benin Sustainable and Secure Access to Electrical Energy Project (PADSBEE), initiated by the Government of Benin, aims to develop sustainable access to electricity through the construction of new lines to extend distribution networks. The construction of overhead distribution lines requires perfect knowledge and application of the climatic, electrical and geometric constraints to which they are subject. Our work thus consists in designing a software package for the electrical and mechanical dimensioning of medium-voltage overhead lines, with its application to the 3 km long 20 kV overhead line in the town of Come, in the Mono department. Based on the characteristics of the conductor to be used, the current criteria and the maximum permissible voltage drop, the electrical dimensioning allowed us to determine an Almelec conductor with a cross-section of 75.5 mm² and composite insulators with a 490 mm creepage distance. From a mechanical point of view, verification of clearances to obstacles led to the selection of reinforced concrete supports 12 m in line and at a standstill, and 13 m at an angle. Wind and conductor loads on the supports led to the selection of Class A supports with a force of 300 daN in alignment, a Class A support with a force of 800 daN at an angle, and Class C supports with a force of 2000 daN at a stop. Reinforcements are of the sheet-vault type in alignment, horizontal stirrup in angle and single cross-member anchorage in stop. Copyright@ International Science Community Association