I was putting up my pre-lit tree today. I tested the lights and they all work fine. The strings on the tree have 2 wires with one thicker than the other. I was going around and fixing the branches when i found one of the smaller wires was broken. I was thoroughly confused because all of the lights were still on. I killed the power and figured i would just strip it, twist it and add a lot of electrical tape.
Well I stripped the wire and all I see is a clear plastic piece of wire where the metal wire should be. WTF? Why would they add a second wire on the string that doesn't carry current?
I am going assume that the tree wiring is safe since the broken wire is plastic.
