28/04/2025
Concrete-Encased Electrodes:
- The electrode shall be located near the bottom of a concrete foundation or footing that is in direct contact with the earth and shall be encased by not less than 2 inch. (50 mm) of concrete.
- The encased electrode shall consist of one of the following:
(a) Not less than 20 ft. ( 6 m) of bare copper main-size
conductor
(b) At least 20 ft. ( 6 m) of one or more steel reinforcing bars or rods that have been effectively bonded together by welding, structural mechanical coupling, or overlapping 20 diameters
and wire tying.
- A test or connection point shall be provided on each concrete -encased electrode to enable periodic maintenance and testing of the ground system.
