What is the most common service voltage used in a temporary power panel?

The most common service voltage used in a temporary power panel is 120/240 volt, 1-phase, 3-wire. This configuration is widely utilized because it provides flexibility in powering both 120-volt and 240-volt equipment, making it suitable for a variety of temporary applications, such as construction sites or outdoor events.

The 120/240 volt, 1-phase, 3-wire system allows for the utilization of standard household-type appliances and tools, which typically operate at 120 volts, while also accommodating larger equipment that requires 240 volts. The three-wire configuration includes two hot wires and one neutral, enabling both voltage levels to be accessed effectively.

Choosing this service voltage ensures that temporary installations can support a range of electrical loads, simplifying equipment selection and maintaining efficiency in operation. Other options presented may not offer the same level of versatility or are less suited for typical demands found in temporary setups. For instance, 480 volt, 3-phase setups are usually utilized in industrial environments for larger power demands and aren't as common in temporary applications where a mix of voltage requirements is needed. Meanwhile, both 240 volt, 1-phase, 2-wire and 120 volt, 1-phase, 2-wire options are more limited