Question

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

Explanation:

Chapter 8 of the NEC is dedicated to the installation requirements for communication systems, which includes related wiring and equipment. Healthcare applications are covered in Chapter 5, fiber optic cables are a subset under communication systems but not the full focus, and outline lighting/electric signs are addressed in Chapter 7.

Answer:

communication systems