What is an essential requirement for a proper electrical installation?

An essential requirement for a proper electrical installation is proper grounding. Grounding is crucial as it provides a safe path for fault currents to flow to the earth, reducing the risk of electric shock and protecting equipment from damage due to electrical surges or lightning strikes. It also helps to stabilize voltage levels in the electrical system, ensuring safe and reliable operation. Proper grounding contributes to overall electrical safety, which is a fundamental aspect of any good electrical installation.

Other aspects, like minimum conduit runs or component sizing, affect the efficiency and practicality of an electrical system, but they do not directly address safety in the same manner that grounding does. Ensuring that fixtures are not overlamped and using appropriately sized conductors also play important roles, but grounding is paramount for safeguarding both people and equipment.