Which NEC table provides information about sizing wire-type equipment grounding conductors?

Table 250.122 in the National Electrical Code (NEC) specifically addresses the sizing of equipment grounding conductors based on the rating of the overcurrent protection devices. This table provides the minimum size of equipment grounding conductors for various amperage ratings, ensuring that the conductors are adequately sized to carry fault current, which is crucial for the safety and effectiveness of the grounding system.

The importance of correctly sizing equipment grounding conductors is tied to their role in providing a low-resistance path for fault currents, reducing the risk of electric shock and equipment damage in the event of a fault. Thus, the information contained in Table 250.122 is essential for electricians and engineers when designing and installing electrical systems to meet safety standards.

In contrast, the other tables listed focus on different aspects of grounding and bonding. For example, Table 250.66 provides information about the size of grounding electrodes, while Table 250.102(B) relates to conductor sizing for bonding grounded conductors. Table 250.101 deals with the general requirements for grounding. Therefore, the specific functionality of Table 250.122 makes it the correct answer for sizing wire-type equipment grounding conductors.