This article explains the development process of a proficiency testing programme that is suitable for electrical and mechanical safety tests. The process for testing the homogeneity and stability of specimens is also discussed.
Direct Current (DC) applications have become more prevalent in recent years, primarily due to the increased usage of renewable energy and energy storage systems. A review of the existing safety standards and other literature shows that there is limited experimental data on DC human body resistance. In particular, no information was found by the authors describing the repeatability of DC body impedance and the effect of contact material and other variables.