Radial Circuit Ring Main Circuit. Additional and very useful information concerning the do s and don ts of ring and radial circuits can be found in appendix 15 of bs7671 2018. A ring circuit is an electrical circuit which has two feeders both come from the same 32a mcb or rbco in the consumer unit and head off to different ends of a loop circuit.
The circuits are still operated radially but if a fault occurs on one of the circuits the tie switches allow some portion of the faulted circuit to be restored quickly. The circuit terminates with the last point on it. It is wired using 2 5 mm twin and earth pvc cable and goes to each socket and stops at the last socket and does not return to the consumer unit.
Electricity loses power as it travels over long distances and the amount of power that would be needed to run from a single point at the consumer unit in a single direction to the furthest part of the house can potentially overload the wires dependant on other external factors such as the amount of load which.
Simple radial socket circuit. Additional and very useful information concerning the do s and don ts of ring and radial circuits can be found in appendix 15 of bs7671 2018. It is simply a length of appropriately rated cable feeding one power point then possibly going on to the next. The ring main is connected to the consumer unit on both ends which helps lighten the load on the wires.
