An overcurrent protection device of suitable-carrying capacity that is capable of interrupting the maximum short-circuit current shall be provided in each ____________________.

An overcurrent protection device, when specified to interrupt the maximum short-circuit current, must be used in ungrounded conductors. This requirement is essential for ensuring that any disruptions in the electrical system, such as short circuits, are effectively managed to prevent damage to the circuit and reduce the risk of fire.

Ungrounded conductors refer to the live wires in an electrical system that carry current. These conductors need appropriate overcurrent protection to prevent excessive current flow during fault conditions, which can lead to dangerous situations. If an overcurrent device is present, it can swiftly interrupt the current, enhancing safety and maintaining the integrity of the electrical circuit, thus protecting both the equipment and the users.

Safety standards and electrical codes highlight the necessity of providing the proper protective devices for ungrounded conductors since they directly affect the circuit's capacity to handle fault currents. Therefore, the presence of the proper overcurrent protection device in ungrounded conductors is critical for fire alarm systems and overall electrical safety.