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Lighting/switching question


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So today at school we got handed the blue prints for the house we will be wiring this year and I am sitting at home and want to get a jump start on designing the wiring

I have (amoung other things) a covered porch to wire. This porch is also the front entrance to the house. It is more or less L shaped with the bottom of the L leading up to the door and the long side going down the house. Got it? Good cause I sure dont....

There will be two lights up the steps and to the door (lights A), and 2 more down the long side of the porch (lights B), I would like to put lights A on switch #1 so you could illuminate that portition while leaving the house, so that is simple. But then I want all 4 lights to come on when I flip switch #2.

I have been drawing out this circuit and can't figure out if it will work/if it is even possible, I'm leaning towards it's not, any ideas?

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Install a switch "C". Put two lights on a three way, switches A and B, and put the other two on switch C. That way from one location you can turn on just the two, and from the other location you can turn on two or four lights. You can't do what you want to using conventional methods. Now, if your willing to get into a PLC system for a house then pretty much anything is possible, for a price.

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  • 3 weeks later...

If I HAD to do it, I'd use a couple of lighting contactors. If you still need to solve this problem PM me. I have it sketched out but my scanner's not working. Basically Switch 1 energizes Contactor 1, Switch 2 energizes Contactor 2. Wire an N.O. contact from each contactor in parallel and connect to the A lights, and an N.O. contact from Contactor 2 to the B lights. Switch 1 now turns on just the A lights and Switch 2 turns on all lights.

But if I had a choice, I'd put the A lights on Switch 1 and the B lights on Switch 2 and just flip them both when I wanted all the lights on.

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