2025 TEJATC Fire Alarm Exam Complete Practice Test

The table that provides power limitations for direct current power limited fire alarm circuits is Table 12(b) in the National Electrical Code (NEC). This table is specifically designed to outline the allowable circuit lengths and wire sizes for different applications, which is crucial for ensuring that fire alarm systems operate within safe and effective parameters.

In the context of fire alarm systems, it’s important to adhere to the power limitations specified in Table 12(b) to prevent issues such as voltage drop, overheating, or inadequate performance of fire alarm devices. The table accounts for factors like the gauge of wire being used and the total distance of the circuit, ensuring that the devices receive adequate power without exceeding safe limits.

By following the guidelines laid out in Table 12(b), professionals can ensure compliance with NEC standards which enhance the safety and reliability of fire alarm systems in the event of an emergency.