To determine the appropriate size for protective grounding equipment, we need to ensure it can conduct the maximum fault current and clear the fault in a given time without overheating. This involves understanding the thermal and electrical properties of grounding conductors, typically specified in American Wire Gauge (AWG).
Given: The equipment must have an ampacity greater than or equal to a specific size AWG copper conductor.
Let's consider the choices:
○ 1
○ 2
○ 3
○ 4
After a thorough analysis and considering various factors such as fault currents, temperature rise, and mechanical durability, the chosen size should adequately handle the potential conditions.
The correct answer is:
○ 2
