It could be 12v
and/or 110v for lights. There is a 10 year difference, but in my 1968
, I have wiring for lighting. The exhaust hood is also in the same overhead bin, and wiring for it comes down through the vent.
In the location where your wires are, on my Trade Wind the Control Center is located in the cabinet below that overhead compartment, above the counter, and contains all of the 12v
meters and a couple of 110v outlets. A large bundle of 12v
and 110v lines emerge from the wall. It's a mess of spaghetti in my Trade Wind. The wiring colors are helpful to distinguish 12v from 110v. My Trade Wind is easier, also, because it has Romex for 110v, and the 12v wires are red and black, in a heavier gauge, not combined in a sheath together.
Somewhere, I read that some vintage Airstreams had electrical lights both 12v and 110v, identical in appearance, installed side-by-side. (Even earlier models had the propane lights.) The power supply is all that differentiated the two, and one or the other would be used depending on the availability of shore power. Locations of these sets would be over the kitchen counters, in the bath, and in the bedrooms, probably other convenient locations.
My Trade Wind has two flourescent fixtures over the sink and range area, but both are 12v.
Also, depending on how your Airstream might have been modified over time, it may be possible only to check the voltage/amps and trace the path through the walls, if you ever have the opportunity to remove the inner skin panels.
I'm getting into that now. It's sometimes a mystery or a puzzle. My Multimeter has been very helpful in the sorting out of wiring.
Originally Posted by abrodsky
Any idea what was connected to these wires that come out of the wall over the sink? Hope the picture's not too dark. Thanks!