A ground is an intentional connection between what two entities?

A ground is defined as an intentional connection between an electrical system and the Earth. This connection serves several important functions in electrical systems. Primarily, grounding provides a safe path for excess electrical current, such as in the case of a short circuit or lightning strike, to dissipate safely into the Earth. This helps to protect users and equipment from electrical shock and damage. Grounding also helps to stabilize voltage levels in the electrical system and can prevent electrical disruptions, making it a critical component for safety and functionality in electrical installations.

In other contexts, such as bonding different electrical systems or connecting systems to users or water, grounding specifically refers to the connection with the Earth, making it the most accurate and relevant choice.