Applying prevention through design to voltage testing

One of the fundamental parts of an electrical safety program is the emphasis on establishing an electrically safe work condition. De-energizing equipment, following adequate lockout/tagout procedures, and verifying the absence of voltage are key aspects of this. As industry strives to make the practice of de-energizing equipment before performing electrical work standard practice, verifying the absence of voltage has become one of the most frequent tasks performed by qualified electrical workers. Despite advances in available technology, the process of voltage verification has seen little change and relies upon the establishment and enforcement of administrative controls and the proper use of personal protective equipment. This paper will examine the limitations of current practices and how the application of technology and prevention by design principles can be used to enhance the safety of workers performing this critical task.