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// CODE SNIPPET

250.50 Grounding Electrode System

National Electrical Code 2020 of Minnesota > 2 Wiring and Protection > 250 Grounding and Bonding > 250.50 Grounding Electrode System
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All grounding electrodes as described in 250.52(A)(1) through (A)(7) that are present at each building or structure served shall be bonded together to form the grounding electrode system. Where none of these grounding electrodes exist, one or more of the grounding electrodes specified in 250.52(A)(4) through (A)(8) shall be installed and used.
Exception: Concrete-encased electrodes of existing buildings or structures shall not be required to be part of the grounding electrode system where the steel reinforcing bars or rods are not accessible for use without disturbing the concrete.

Related Code Sections


250.50 Wiring and Protection, Grounding Electrode System
to form the grounding electrode system. Where none of these grounding electrodes exist, one or more of the grounding electrodes specified in 250.52(A ...
National Electrical Code 2020 of Minnesota > 2 Wiring and Protection > 250 Grounding and Bonding > 250.50 Grounding Electrode System
690.47 Special Equipment, Grounding Electrode System
A building or structure(s) supporting a PV system shall utilize a grounding electrode system installed in accordance with Part III of Article 250 ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 690 Solar Photovoltaic (PV) Systems > 690.47 Grounding Electrode System
692.47 Special Equipment, Grounding Electrode System
Any auxiliary grounding electrode(s) required by the manufacturer shall be connected to the equipment grounding conductor specified in 250.118 ...
National Electrical Code 2020 of Minnesota > 6 Special Equipment > 692 Fuel Cell Systems > 692.47 Grounding Electrode System
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