I short while ago we accidentally pulled an alarm down to change the battery. One of the white wires came loose. Above on the top you see a picture of another identical alarm wiring with all wires attached. In this one, there are 3 orange caps. 1 each with 3 black, 3 white, and 3 red wires all attached. One each of those colored wires comes from the plug (hanging at the bottom) into which the alarm is plugged.
I thought this would be a template to help me understand where to put the loose white wire. But in the picture of the loose connectin on the bottom, There are still 3 red, black, and white wires in each of the orange caps. So where do I put the loose white wire? BTW, don't let the fact that the builder partially painted the wires. Those 3 orange caps still just have 3 of one color in each cap.
If this is sounding like I don't understand electrical wiring, you are correct in getting that impression.
BTW, what kind of juice are we dealing with here? Do I need to turn breakers off to repair this?