การพฒนาทกษะปฏบตการดดทอในงานตดตงไฟฟาภายในอาคาร สำหรบนกเรยนประกาศนยบตรวชาชพ สาขาวชาชางไฟฟากำลง

The development of practical skills in pipe bending for electrical installation in buildings for students of the Vocational Certificate Program in Electrical Power aims to 1) develop practical skills in pipe bending for electrical installation in buildings for students of the Vocational Certificate Program in Electrical Power. 2) To determine the efficiency of the demonstration set for pipe bending in electrical installation work inside buildings for Vocational Certificate students in the field of Electrical Power. 3) Evaluate the satisfaction of the learners towards teaching and learning with a demonstration kit of pipe bending in electrical installation in buildings for Vocational Certificate students in Electrical Power. Conducting research by using a demonstration kit that has been developed and has passed the quality assessment at a good level. The experiment was conducted with a sample group of 20 students from Buddhakasem Technology College, vocational certificate level, year 2, Electrical Power Department, by selecting them purposively. The research results found that the efficiency of the pipe bending demonstration set in electrical installation work inside buildings. According to Meguigans' theory, the students' achievement was equal to 1.79, which was higher than 1.00, and they developed practical skills in pipe bending in indoor electrical installation work in the criteria of high skill development, which was 67.11 percent, and had the highest level of satisfaction with the demonstration set The average was at the highest level at 4.53 and the standard deviation was at 0.6).Therefore, it can be said that the demonstration set of pipe bending in electrical installation work inside buildings for students of the Vocational Certificate in Electrical Power, which has been developed, is effective and can be used in teaching very well.