Code Question of the Month
Which of the electrodes listed below are not permitted for grounding, if any? A. 60′ of #4 bare copper that is concrete-encased B. 120′ of #2 bare copper buried in a trench that encircles the building C. 10′ of 3/4″ dia. galvanized pipe D. 2’x 2′ x 1/16″ […]


