For tasks performed on AC equipment rated over 240 volts, which parameter is included according to Table 130.7(C)(15)(a)?

The correct answer relates to the parameters set forth in Table 130.7(C)(15)(a), which provides guidelines for assessing arc flash hazards and the associated personal protective equipment (PPE) requirements for tasks on energized electrical equipment.

When working on alternating current (AC) equipment rated over 240 volts, the maximum of 25 kA available fault current is crucial for determining the arc flash boundary and the level of PPE needed. The specified fault current impacts the potential incident energy that could result from an arc fault, which helps in quantifying the risks to personnel conducting work on or near energized parts.

Knowing that the equipment can experience fault currents of up to 25 kA helps employers and safety personnel make informed decisions regarding protective measures, ensuring the safety of workers. This reflects an understanding that higher fault currents can result in greater incident energy and corresponding risks, thus necessitating appropriate protective clothing and equipment for the tasks.

While the other options might also present important safety considerations, they do not directly relate to the specific requirements stated for hazards associated with AC equipment rated over 240 volts as outlined in Table 130.7(C)(15)(a). Understanding these parameters is key to maintaining a safe work environment in compliance with NFPA 70E