Evaluation of the Cadmium Disc Breakflash in Testing Electrical Circuits Safety in Explosive Atmospheres. A Comprehensive Study of Intrinsic Safety Criteria.

摘要

The research was conducted to analyze the criteria of obtaining ignition from a low-powered electrical apparatus containing no inductive elements,and to understand the importance of the different parameters with the ultimate aim of providing information that would permit the improvement of present testing techniques and apparatus. The cadmium disc breakflash as a testing apparatus was evaluated. The direct and indirect effects on the possibility of obtaining ignition with an 8.3percent methane-air mixture from a resistive circuit were covered.