Electrical theory question here, please don't be to brutal if the answer is obvious...
Came across an install today with two supplies connected before the CU via henley blocks, one supply was mains and the other was the PV install.
My first question is this: how does the CU know to use the...
This is my first post so please be nice 😂
Came across this setup at a customers house the other day.
Can someone explain why mcb’s/ contactor have been used instead of a wiring centre?