Brilliant Upstairs Downstairs Lighting Circuit Diagram
The cable leaves the consumer unit and runs to each outlet position before terminating.
Upstairs downstairs lighting circuit diagram. The first reason this is bad is on safety grounds. The main purpose of two way switching circuit is that the appliances can be on off independently from any switch no matter whatever is the current position of the switch. L and n indicate the supply.
Switches are shown as dotted rectangles. This arrangement would typically be used in conduit and uses two wires. Say we are working on the light upstairs so we turn off the upstairs lighting circuit thinking we are safe wrong the live is picked up downstairs and there are still live conductors feeding the switch upstairs and if someone flipped the downstairs switch in this diagram that live feed would extend all the way to the lamp too you re fried.
These days the loop in system predominates though individual circuits often combine the two for the most economical use of cable. So before we get stuck in to some wiring diagrams start here to make sure you keep yourself safe. Lighting circuits are wired in two different ways using either junction boxes or loop in ceiling roses.
We have and extensive collection of common lighting arrangements with detailed lighting circuit diagrams light wiring diagrams and a breakdown of all the components used in lighting circuits. All the light wiring diagrams are available in the old and the new cable colours to avoid confusion. The most basic circuit with only two wires at the switch.
Two way switching 2 wires. The first reason this is bad is on safety grounds. Say we are working on the light upstairs so we turn off the upstairs lighting circuit thinking we are safe wrong the live is picked up downstairs and there are still live conductors feeding the switch upstairs and if someone flipped the downstairs switch in this diagram that live feed would extend all the way to the lamp too you re fried.
Earth wires are not shown.