What does an AC receptacle powered from an isolated power system indicate?

An AC receptacle powered from an isolated power system is characterized primarily by having AC power that is not referenced to ground. This is a critical feature of isolated power systems, commonly used in healthcare settings, such as operating rooms and intensive care units, to enhance safety and reduce the risk of electric shock.

In an isolated power system, the ground connection for the AC circuit is deliberately removed, limiting the risk of a potentially dangerous fault current that can occur if there is a ground fault. This design allows the system to continue functioning in the event of a single fault, greatly enhancing patient safety.

Furthermore, since these types of systems do not necessarily rely on a ground connection, they may not be deemed mandatory in all areas of the hospital, leading to the assertion that such a receptacle is not required in every part of a medical facility. Therefore, all these points together aptly describe the nature of an AC receptacle powered from an isolated power system.