Hi everyone I was hoping someone might be able to help I came across a video on YouTube where when the shower was turned on it caused the bathroom light to glow while the switch was turned off. The person later explained it to be a voltage drop on the shower but to my understanding something like that wouldn't have that kind of effect ant guidance would be great thank you.
Okay i believe I understand so the load neutral would then receive an extra 5 volts am I understand that right?
In a way, yes. A diagram might help:
If you like the relative voltages, in red, show the voltage differences across each part (cable and load), whereas the blue figures show the voltages relative to Earth.
But none of that directly explains why the lamp glows. If it's an incandescent, a substantial current must be available (much more than capacitive coupling would normally provide) and if the light were conventionally switched and the switch in the off position, there shouldn't be a path for such a current. There must be something odd with the setup or a fault somewhere.
- Andy.
