1918 3 way switch


  #1  
Old 11-03-21, 04:10 AM
J
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1918 3 way switch

I have 2 3-way switches controlling a light going up stairs the stairs. Switch1 is by front door and switch2 is at the top of the stairs and electrical outlets in the living room. We are wanting to add a second wall scone. The home was built in 1918 and knob and tube was replaced but the wiring is so confusing.
Sw2 has a red traveler. Sw1 has a black wire where the traveler should be and ties to a single pole in the same box controlling a hall light upstairs. There is a 2wire coming in to that box and a 2 wire existing the box. Please help a disabled veteran figure this out.




 
  #2  
Old 11-03-21, 12:09 PM
B
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Not sure the attached diagram is existing, proposed or a combination of both. No matter, 3 way switch control requires two 3 way switches. Switch 1 gets the hot wire and 2 traveler wires. Switch 2 gets the travelers from the switch 1 and provided the hot wire to the light socket. The neutral wire is usually part of the cables between the junction boxes containing the switches and light socket. Extending the hot wire from the light socket to another load (unless another hall light) is not practical because the added load can be controlled from 2 locations. Best way to add an outlet in this circuit is to run a cable containing hot and neutral from switch 1 to the outlet junction box. It will be powered as long as the hot wire entering junction box containing switch 1 is hot.
 
 

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