What is an isolated ground?

An isolated ground is defined as a grounding system that is not connected to the building's main grounding system. This configuration is often implemented to reduce electromagnetic interference and ensure sensitive electronic equipment operates properly. By having a separate ground that does not interact with the common grounding system of the building, it helps maintain signal integrity and minimizes noise that could disrupt sensitive devices.

In practice, isolated grounds are particularly beneficial in environments with lots of electrical noise, such as data centers or laboratories. Therefore, the correct understanding of an isolated ground highlights its distinct purpose and application in maintaining the performance of sensitive equipment.