How Do I Wire A 3 Way Switch On A New Construction?

It is always advisable to get an electrician out to do any electrical jobs in the home which you are uncertain about. Fiddling about with electrics when you don’t know what you are doing can not only be dangerous but could result in other problems such as fusing the electrics, cutting wires etc. If you do decide to do any wiring yourself, it is always suggested that you have a qualified and registered electrician to check the wiring you have done. You can find details of local electricians in the Yellow Pages or in the local newspaper.

Wiring a three way switch is possible to do yourself but obviously it’s more difficult than a two way switch. Basically, this three way circuit will allow an electrical item to be operated from more than one location. To do this yourself, it is best explained using diagrams which you can compare to the switches and wires which you will be dealing with in the home.

There are a number of websites which show clear and easy diagrams of this procedure. It is best to have a look at a few before you start to ensure you have a diagram which you feel comfortable with and feel you can see how each step contributes to the overall task. Here are some of the many websites which offer detailed diagrams of wiring a three way switch; www.how-to-wire-it.com/wiring-a-3-way-switch.html, www.howtowireahouse.com/How_To_Wire_A_3-way_Light_Switch_Or_ You can also find video clips of real life situations on YouTube.

I am uploading a diagram that illustrates the easiest method for wiring a 3-way switch. During new construction it is no bad...
 
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Three-way switches are easy to install at home. It just needs a bit of consideration before you actually install them. The basic thing is why do you need the installation for. Here is a website that explains in detail the actual installation process, so that you can see where you went wrong.

www.the-home-improvement-web.com

I have never seen a blue green and orange cable in house wiring but the most basic way to wire a 3 way switch is to take a 14/2 wire from your panel to your first three way switch the black hot wire will go on your common screw or the black screw on the switch from there you will need a 14/3 wire going from your first switch to your second switch which will contain a black red and white wire the black and red wires go on the other 2 screws on the first switch and the white wire will connect to the other white wire coming from the panel then we go to your second 3-way switch again the red and black wire from your 14/3 goes to the other 2 screws on the switch and now you will need another 14/2 wire going from your second switch to your light. The black wire in that cable will again go on the black screw or the common screw on your second switch and again the white wires will just all connect together. Then you hook the other end of the 14/2 wire up to your light and thats it.

The most basic way to wire a 3 way switch is to take a 14/2 wire from your panel to your first three way switch the black hot wire will go on your common screw or the black screw on the switch from there you will need a 14/3 wire going from your first switch to your second switch which will contain a black red and white wire the black and red wires go on the other 2 screws on the first switch and the white wire will connect to the other white wire coming from the panel then we go to your second 3-way switch again the red and black wire from your 14/3 goes to the other 2 screws on the switch and now you will need another 14/2 wire going from your second switch to your light. The black wire in that cable will again go on the black screw or the common screw on your second switch and again the white wires will just all connect together. Then you hook the other end of the 14/2 wire up to your light and thats it.

This is how:
1)connect the blackwire HOT to the dark common terminal on the switch
2)fasten the other two wires called travelers to the brass terminal in either order mark the white wire to indicate it is HOT
3)connect the other black and white wire together in the box
4)the next switch the red wire and the white wire marked HOT go to the top of next switch the other white wire and red wire go to the bottom then connect your necked grounds.

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For more information howe to wire a 3 way switch

If you see your cable you will find that there are three wires.
1-Blue
2-Green
3-Orange

Green is earth wire. Blue is neutral and orange is phase wire.
If you hold the switch from front then put orange on the right, blue on the left and green on upside.