Question 5015 of 790 · California General Electrician Exam
The portion of a grounding electrode conductor that is the sole connection to one or more ground rods is not required to be larger than
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 5015
- C: 6 AWG copper
Explanation
A GEC run only to rod, pipe, or plate electrodes need not be larger than 6 AWG copper or 4 AWG aluminum, regardless of the service size. See 250.66(A).
More questions: Grounding and Bonding
- 5016The portion of a GEC that is the sole connection to a concrete-encased electrode is not required to be larger than
- 5017The portion of a GEC that is the sole connection to a ground ring is not required to be larger than
- 5018A service has 2/0 AWG copper ungrounded conductors. What is the minimum copper GEC to a metal water pipe electrode?
- 5019A service has 4/0 AWG copper ungrounded conductors. What is the minimum copper GEC to the building steel electrode?
- 5020A service has 500 kcmil copper ungrounded conductors. What is the minimum copper GEC to a water pipe electrode?
- 5021A service has two parallel sets of 3/0 AWG copper (about 168 kcmil each). What is the minimum copper GEC to a water pipe electrode?