The discussion revolves around the understanding of alternating current (AC), its behavior, and safety considerations related to electrical wiring. Participants seek to clarify basic concepts without delving into complex mathematics or formulas.
Participants generally agree on some basic principles of AC current and safety, but there are multiple competing views regarding the terminology and implications of neutral versus live wires, as well as the conditions for receiving an electric shock. The discussion remains unresolved on several points, particularly regarding safety mechanisms and the nature of electrical shock.
Some participants express uncertainty about the grounding of wires and the conditions under which current flows through the body versus the earth wire. There are also references to varying electrical standards and practices in different regions, which may affect the understanding of the topic.
This discussion may be useful for beginners seeking a foundational understanding of AC current, electrical safety, and the differences between AC and DC systems.
sophiecentaur said:Briefly: I am not referring to a Residual Current Device, which compares Live and Neutral currents. These did not exist at a time when transistors were not common. This device, as I keep saying, measured current flowing down the Earth wire from the consumer unit to the Earth spike. It was very insensitive but sufficient to do the job that a fuse could no.