The Natural Philosopher wrote:

Roger Hayter wrote:

The Natural Philosopher wrote:

THINK. How COULD it be part of it. If it passes any current at all it is
CREATING an earth fault.

All they have to do is draw the current for the electronics *before* the
imbalance detector.

WHAT electronics?

THESE electronics ... the white earth flylead seems to connect to a pin
on the balance transformer (whatever the correct term might be)

https://youtu.be/8kWIITspYvk?t=441