Which tag color indicates that the system is operating normally?

The tag color that indicates the system is operating normally is green. In many systems, including sprinkler systems and fire protection equipment, a green tag signifies that everything is functioning as intended and that there are no issues that require attention. This color coding system is used for quick visual identification, allowing personnel to easily ascertain the status of the system without needing to conduct a detailed inspection.

Using a green tag greatly enhances safety and operational efficiency, as it helps staff quickly identify that the system is ready and dependable for use. In contrast, other colors like red or yellow typically signal alarm conditions or maintenance needs, indicating that the system may not be in optimal condition. This standardization in tagging helps reduce confusion and promotes a clear communication protocol within fire safety and protection systems.