User: Rutherford, Location: New York Adirondack region
Asked on: Wednesday, March 23, 2011 at 8:52 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:11 am EDT
Question: Do these two satisfy 250.53(B)?1. Galvanized steel water line coming from well.2. 20-foot length of 1/2" steel rebar fully encased in foundation wall footing.Rod electrodes driven into ground are to be minimum 6 feet apart. What is the required distance if the water line and the footing rebar are used, and no rods are used?
Question 1
No, neither satisfies 250.53(B) because the water line and the footing rebar are not specifically mentioned as acceptable grounding electrodes in 250.53(B).
Question 2:
If the water line and the footing rebar are used as grounding electrodes, and no rods are used, then the required distance between them is 20 feet. This is because the water line and the footing rebar are parallel to each other and less than 6 feet apart. Flag for review