An isolated ground 120V outlet used in conjunction with an isolation transformer has what sign on its face?

An isolated ground 120V outlet, when used in conjunction with an isolation transformer, is indicated by an orange triangle on its face. This symbol is standardized to alert users that the outlet is specifically designed for isolated ground systems, which help to reduce electrical noise and improve equipment performance in sensitive environments, such as those found in entertainment settings.

The use of an orange triangle signifies that the outlet has been configured to ensure that the ground is isolated from the main electrical system ground. This isolation prevents the ground path from carrying noise or other electrical interference that can affect sensitive equipment. The presence of the triangle serves as a visual cue to technicians and users, indicating the special purpose and safety considerations associated with the outlet.

In contrast, other symbols like the yellow star, red triangle, or green circle have distinct meanings or uses that do not relate to isolated ground systems. Understanding these symbols is crucial for safely working with electrical systems in entertainment technology, ensuring that equipment is properly installed and maintained for optimal performance and safety.