Grounding system

A grounding system creates a connection between system equipment and/or conductors to the earth. A grounding system is not necessary for an electrical system to function, some countries have electrical systems devoiding of any form of grounding and it is common for small-scale DC-only PV systems operating at below 50V to lack a grounding system as it would increase the cost substantially without providing significant benefit. As system size, voltage, and cost increase a proper grounding system can improve safety for users and help protect the system against damage from lightning. The electrical code for every country will contain information about the requirements and specific equipment for that location.