Unfortunately the information relationship is a bit muddy between NFPA 70 and 72. Usually some building or life safety code tells you where detection is required and other aspects of the big picture, then 72 gives more application information of where and how to's, then 70 tells you about cable/wire, raceway, boxes, etc. The information in 70 is not only in 760 but in the multiple references to articles in Chapters 1-4. There is even a new smoke detector related requirement that shows up beginning in 2002, that is hiding in 645, if you frequent that part of the code.
