tom The most obvious example is if working with wiring of almost any type where standards for color codes exist E.G. home wiring. If you were installing new wiring you'd better get the black and white wires in the right places.
Tom Fowle
tom The most obvious example is if working with wiring of almost any type where standards for color codes exist E.G. home wiring. If you were installing new wiring you'd better get the black and white wires in the right places.
Tom Fowle