Apologies if this scenario has already been posted but I am unable to find it.
Came across a the above circuit yesterday as it was tripping an RCD. Feed seems to be coming from a Porch light. This is controlled by a switch in the hallway. Feed comes down to the back of the FCU near the CU and then goes to the PIR via connector blocks in the back box of the fcu. FCU has its feed from the CU direct with its load being the outside light. Seems they want the hallway switch to control the lights independently with the PIR also switching them independently. Can anybody see an issue with the wiring as I cannot get my head around what has been done. The PIR has 3 terminations in a connector block.
Came across a the above circuit yesterday as it was tripping an RCD. Feed seems to be coming from a Porch light. This is controlled by a switch in the hallway. Feed comes down to the back of the FCU near the CU and then goes to the PIR via connector blocks in the back box of the fcu. FCU has its feed from the CU direct with its load being the outside light. Seems they want the hallway switch to control the lights independently with the PIR also switching them independently. Can anybody see an issue with the wiring as I cannot get my head around what has been done. The PIR has 3 terminations in a connector block.