In a fire alarm system, when is a T-branch or splice permissible for use?

In a fire alarm system, the use of a T-branch or splice is never acceptable because it can compromise the integrity and reliability of the system. Fire alarm systems are designed with strict standards to ensure they operate correctly during emergencies. Splices and T-branches introduce additional points of failure and can lead to disruptions in the signal or cause the system to malfunction.

Maintaining a secure, continuous circuit is essential for the proper functioning of all components within the fire alarm system. Proper installation techniques are crucial in adhering to safety codes and standards, and practices such as using connectors specified by the manufacturer or following specific wiring practices are emphasized in industry standards. Therefore, the use of T-branches or splices is not aligned with the best practices for ensuring the reliability and safety of fire alarm systems.