This report details a student's project on measuring air breakdown voltage using the standard sphere gap method. The project involved understanding the principles of air breakdown, including streamer and Townsend theories, and designing experimental setups with sphere gap arrangements. The student, acting as team leader, managed the project, defined objectives, and oversaw the experimental procedures, including considerations for environmental factors like temperature and pressure. The report outlines the application of engineering knowledge, calculations for air density and humidity corrections, and the analysis of results obtained from varying sphere distances. The student's responsibilities included team management, testing arrangements, and ensuring the accuracy of the results. The project aimed to determine the air breakdown voltage for high-voltage equipment insulation design, with detailed attention to electrode configurations and the impact of environmental conditions. The report concludes with a project overview, highlighting the student's contribution and the successful determination of air breakdown voltage through various calculations and experimental setups.