N
NewbieRuffy
Hi All, I am newbie to this site and very new to Electrics also, so please excuse my ignorance. I have recently obtained Part P, 17 edition and 2392. As i am sure you are aware to gain access to NIC i need to carry out 2 jobs so they can be inspected by NIC (for a nice fee of course). I chose to change my very out dated CCU which went without too much hassle. I noticed when changing to the new board that the downstairs lighting circuit had 2 tails into the CB as it seemed to always had been like this i did a like for like change and thought would investigate after CCU change. I am now at the testing stage and after some investigation and elimination i have found that its 2 circuits on one 6A CB. 1 circuit serves the whole of the downstairs lights apart from the Porch light (which is where the CCU is) which is on the other circuit in the same CB. I am not sure why this has been done and when changing CCU noticed that all was original wiring and the porch is part of the original house.
Given there are 8 other lights down stairs, and working at 100w per light using O-law this equates to 3.4A and with the porch light even though on a different circuit its well within the limits of the 6A CB, question is, as this is going to be inspected by NIC, does the Porch light circuit need its own CB?
Sorry if i go on a bit and its a bit detailed, still new
Given there are 8 other lights down stairs, and working at 100w per light using O-law this equates to 3.4A and with the porch light even though on a different circuit its well within the limits of the 6A CB, question is, as this is going to be inspected by NIC, does the Porch light circuit need its own CB?
Sorry if i go on a bit and its a bit detailed, still new