Final answer:
To prevent faulty network devices from carrying dangerous voltage levels, equipment must be properly grounded and wired correctly. Grounding diverts excess voltage while proper wiring ensures smooth electrical current flow. Electrical safety systems like circuit breakers and fuses provide additional protection against thermal and shock hazards.
Step-by-step explanation:
To prevent faulty network devices from carrying dangerous voltage levels, equipment must be properly grounded and wired correctly. Grounding ensures that any excess voltage is safely diverted to the ground, while proper wiring ensures that electrical current flows smoothly and does not pose a hazard. Additionally, using electrical safety systems such as circuit breakers and fuses can further protect against thermal and shock hazards.