Final answer:
System grounding relates to the electrical systems over 250 volts. It is a safety measure used to prevent thermal and shock hazards.
Step-by-step explanation:
System grounding relates to the electrical systems over 250 volts.
Grounding is the process of attaching a conductor to the earth to ensure that there is no potential difference between it and Earth.
It is a safety measure used to prevent thermal and shock hazards in electrical systems.