How should fire alarm circuits be identified at terminal and junction locations?

Fire alarm circuits must be clearly identified at terminal and junction locations to ensure safety and proper functioning during both normal operations and maintenance activities. Accurate identification is essential to prevent accidental interference, which could lead to disruptions in the fire alarm system's performance. When technicians or maintenance staff can quickly and accurately identify which circuits are connected to which components, they can work more effectively and safely, especially when conducting tests or repairs.

Preventing accidental interference during testing is critical in maintaining the reliability of fire alarm circuits. If circuits are not clearly labeled, there is a higher risk of confusion, which can lead to circuits being inadvertently disconnected or altered. This can compromise the overall integrity of the fire alarm system and might result in failure during an actual fire event.

While color coding, standard signs, and verbal warnings can play a role in identifying fire alarm circuits, the primary focus during testing is on preventing any accidental interference, making that the most significant aspect of proper identification in this context.