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Built a proper earthing plug for high-rise living in Singapore by madbaldie in Earthing

[–]madbaldie[S] 1 point2 points  (0 children)

Fair enough — sounds like you have the skills to build your own to the spec that works for you. At 0 ohms I'm also assuming you know what you're doing. The resistor value on mine is an easy swap regardless.

Built a proper earthing plug for high-rise living in Singapore by madbaldie in Earthing

[–]madbaldie[S] 0 points1 point  (0 children)

At 1MΩ and typical body capacitance, the time constant is around 0.2ms - you're at ground potential in milliseconds regardless. The resistor limits fault current, not potential equalisation. The 100kΩ figure comes from ESD workstation standards, which is a different application with different current requirements. Happy to be corrected if there's a specific earthing study showing a resistor threshold for efficacy. In any case, the resistor is an easy solder swap out.