[DontDIY]

While dismantling a chandelier to be painted 2 of the wires were damaged and aren't usable. I want to be sure I'm buying the correct type of wire to fix it. The original wire (pic) is 600V 18AWG, but I'm not sure if its tinned copper or what. The damaged wire was running through the trunk of the chandelier. What sort of wire can I use as a replacement?

 

[diyorpay]

Your pic shows wire typically used in lighting.
It appears undamaged, just came apart. The ends of each are twisted together with your hand to make it as close to solid as possible. (Huge suspension bridge cables are made from stranded thinner cables and then twisted.)
It is stranded wire, 18 gauge.
If anywhere along the run, you see bare wire because outer plastic casing was cut into, replace with same type.