Explanation: As stated in Sec. 250.53(A)(3), "If multiple rod, pipe, or plate electrodes are installed to meet the requirements of this section, they shall not be less than 6 ft apart." Lupacchino is ...

Where rock bottom is encountered when driving a ground rod at an angle up to 45 degrees, the electrode can be buried in a trench that is at least _____ deep. a) 18 in. b) 30 in. The correct answer is: ...