Final answer:
When adding a second grounding electrode, they must be spaced at least 6 feet apart according to NEC standards. This is essential for proper grounding and electrical safety.
Step-by-step explanation:
The question pertains to the spacing requirements for grounding electrodes in an electrical grounding system. When there is a requirement to add a second grounding electrode, the two electrodes must be spaced at least 6 feet apart, according to the National Electrical Code (NEC). This spacing is crucial to ensure proper grounding and to maintain the safety and effectiveness of the electrical grounding system.
The grounding process involves connecting conductors to the earth to create a reference potential for the electrical system. This helps to stabilize voltage levels and provides a path for fault current to prevent electric shock, equipment damage, and fire hazards. Therefore, adhering to NEC guidelines for the installation of grounding electrodes is essential for electrical safety.
When adding a second grounding electrode, there is a requirement to space the two electrodes at least six feet apart.
This spacing is necessary to ensure that the two electrodes provide separate paths for the electrical current to flow into the ground.
If the two electrodes are spaced too closely, they may interfere with each other's effectiveness.