Which of the following is true regarding grounding electrode systems?

Grounding electrode systems play a critical role in electrical safety by ensuring that the electrical system is properly grounded. One aspect of grounding electrode systems is their location and accessibility for maintenance or inspection purposes.

A key characteristic of grounding electrode systems is that they must be readily accessible, which is vital for ensuring that they can be properly inspected and maintained. Although grounding electrodes might not be in an easily visible location, there should be a pathway or means of access that does not require significant effort or delay to reach the grounding components, particularly for testing and repairs.

The other aspects of grounding electrode systems involve various conditions regarding their physical characteristics. For instance, while grounding electrodes can include buried metal piping, this is not a requirement for all systems. Additionally, grounding electrodes do not have to be located above ground, nor does their installation necessarily need to be permanent in every case. Hence, accessibility remains a priority to allow for the necessary oversight to ensure the grounding system continues to function effectively.