Question

what does chapter 8 of the national electrical code (nec) focus on?
fiber optic cables
outline lighting and electric signs
communication systems
healthcare applications

Explanation:

Chapter 8 of the NEC is dedicated to establishing standards for communication systems, including associated wiring, equipment, and installation requirements. The other options are covered in different NEC chapters: fiber optic cables are addressed in relevant sections of communication or wiring chapters, outline lighting/electric signs are in Chapter 7, and healthcare applications are in Chapter 5.

Answer:

communication systems