Ronimack Trajano de Souza is Professor at the Federal University of Campina Grande, BRA. He received Bachelor's, Master's, and doctoral degrees in Electrical Engineering from the Federal University of Campina Grande. He has working experience in industry and is a technical consultant for electrical installations. He is the author of Energisa's NTU 014 Standard and the books "Industrial Commands" and "Building and Industrial Electrical Installations", both published by NT Publishing Company.