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What is the circuit for 2 way lighting on a residencial circuit?
Double switch
- Thread starter AnonymousImport
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This is fairly straight forward especially if you have ceiling roses and there is an existing working fitting. If not, let me know and I'll advise a little more...
The circuit for a single switch will be N direct to the fitting, E direct to fiting and down the switching cable, live to the switch, returned live from the switch to the fitting.
Always switch the live, not the neutral. This way the fitting is not live when switched off.
For a two way circuit, use 3 Core+E between the switches.
Leave the original live in the "common" of the first switch. Disconnect the original return from the switch and connect it to the red of the link cable using a crimp or connector block. Connect the link cable blue to L1 and the yellow to L2. Connect all earths to the box.
At the second switch wire blue L1, yellow L2, & Red common. Earth the box.
Don't forget to take all of the usual precautions, disconnect the circuit whilst working on it, sleeve the earth wires, don't nick the insulation, metal clad cables buried in walls, drill joists through the centre not closer than 1/4 of the span to the support or 4/10 from the support not larger than 1/4 of the joist depth not closer than 3 diameters to the nearest hole, and don't drill through trimmers at all etc. etc.
The circuit for a single switch will be N direct to the fitting, E direct to fiting and down the switching cable, live to the switch, returned live from the switch to the fitting.
Always switch the live, not the neutral. This way the fitting is not live when switched off.
For a two way circuit, use 3 Core+E between the switches.
Leave the original live in the "common" of the first switch. Disconnect the original return from the switch and connect it to the red of the link cable using a crimp or connector block. Connect the link cable blue to L1 and the yellow to L2. Connect all earths to the box.
At the second switch wire blue L1, yellow L2, & Red common. Earth the box.
Don't forget to take all of the usual precautions, disconnect the circuit whilst working on it, sleeve the earth wires, don't nick the insulation, metal clad cables buried in walls, drill joists through the centre not closer than 1/4 of the span to the support or 4/10 from the support not larger than 1/4 of the joist depth not closer than 3 diameters to the nearest hole, and don't drill through trimmers at all etc. etc.
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