In a typical 240/120-volt service drop, how many ungrounded conductors are present?

In a typical 240/120-volt service drop, there are two ungrounded conductors. This system is designed to allow for both 120-volt and 240-volt circuits to be powered. The two ungrounded conductors are each connected to one of the two phases of the supply, providing the necessary voltage levels.

One conductor usually carries the live voltage for 120-volt applications, while the other conductor is used to deliver power to 240-volt appliances. This configuration supports a wide range of electrical needs in residential and commercial settings. The presence of these two ungrounded conductors ensures that both single-phase and two-phase loads can be effectively managed within the electrical system.

In summary, the correct answer highlights the dual nature of ungrounded conductors in residential wiring, facilitating the diverse voltage applications needed for different types of electrical equipment and devices.