I bought this ceiling lamp, and there are 4 wires coming out of it. One white and one black (positive and negative), a bare copper wire for grounding, but there's also a yellow striped green wire. I was wondering what's the latter one for ?In my ceiling I have the black, white and bare copper wires.I'm Canadian by the way
The yellow and green wire is another ground wire. In a house in North America most systems are AC and there is NO positive or negative conductor. The conductors are a ground/bare, white/neutral and any color is a hot wire. The green or yellow green are the exception to the color codes. I suggest you get a book on basic house wiring before you attempt anything besides basic replacement of devices.
Bare and Grn Yel. are both grounds . Just connect one or the other to the 'bare' in the box.
