Questionnaire Survey on Prevention Against Electric Shock Accident—Specifically during Arc Welding—

Abstract

In 2011, the standard for automatic electric shock prevention devices and the technical guiding principle of the safety standard for connection and use of automatic electric shock prevention devices for AC arc welding equipment were revised. In September 2017, we conducted a questionnaire survey on whether respondents recognize the safety standard and guiding principle and measure the starting sensitivity of automatic voltage-reducing devices. We obtained the following results: (1) Approximately 30% of the respondents recognized the standard and guiding principle. (2) Approximately 13% of the respondents measured the starting sensitivity of automatic voltage-reducing devices. (3) Further, approximately 50% of the respondents used an automatic voltage-reducing device that conformed to the standard for automatic electric shock prevention devices for AC arc welding equipment. (4) Finally, the percentage of assignment of leader for power cut work and the percentage of companies making the operation a manual procedure for prevention of electric shock accidents increased with the number of employees.