The discussion centers on the phenomenon of electric current passing through a strong insulator when a test light is connected to an electrical outlet. It is established that the current observed is alternating current (AC) at mains frequency, primarily due to the capacitance between the human body and the ground. The calculations indicate that a minimum body capacitance of 100 pF at 230 Vrms results in an average current of approximately 6.5 µA, sufficient to illuminate the test light. Additionally, the presence of dirt and moisture on the insulator's surface can facilitate current flow around its edges.
PREREQUISITESElectrical engineers, safety inspectors, and anyone interested in understanding the behavior of electrical currents in insulative materials and their implications for safety and device functionality.
The current that flows is AC at the mains frequency. The small current needed to light the test light passes through the capacitance between your body and the nearby ground.abdossamad2003 said:
I'm confused by your question and situation. By "test light", do you mean an isolated AC Mains Safety Detection Device? If so, the answer given by @Baluncore is correct.abdossamad2003 said: