Unless properly tagged, _____ alarm cables are not permitted in buildings.

Abandoned alarm cables pose a significant safety hazard and are not permitted in buildings unless they are properly tagged. When cables are abandoned, it means they are no longer in use, which can lead to confusion during maintenance or renovations, potentially causing interference with active systems. Proper tagging helps indicate that these cables are not in operation and ensures that they can be safely managed or removed, thereby maintaining clear and functional pathways for current electrical systems.

Unused cables, while they may not be actively serving a purpose, are not categorized the same way as abandoned cables and can sometimes be retained for future use. Damaged cables may be subject to maintenance or repair rather than outright prohibition. Deactivated cables may still be in a state where they can be reactivated and are not necessarily abandoned; thus they require a different handling approach than fully abandoned lines. Therefore, the proper handling and identification of abandoned cables through tagging is critical to maintaining safety and clarity within a building's electrical infrastructure.