Question 2053 of 790 · California General Electrician Exam
What is the minimum depth of working space in front of a 120/240 volt panelboard with live parts on one side and no grounded parts on the other (Condition 1)?
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 2053
- A: 3 ft
Explanation
For 0 to 150 volts to ground, the working space depth is 3 ft for all three conditions. Higher depths apply only above 150 volts to ground. See Table 110.26(A)(1).
More questions: Services and Service Equipment
- 2056How is the overcurrent protection for each ungrounded service conductor generally sized?
- 2057What is the maximum number of disconnects permitted for a building supplied by one outside feeder?
- 2058What is the minimum height above finished grade for the point of attachment of a service drop to a building?
- 2059Ground-fault protection of equipment is required for a service disconnect rated 1200 A on which system?
- 2061Overhead feeder conductors run from a house to a detached garage at 120/240 volts. What is the minimum clearance above the residential driveway?
- 2062May branch circuit conductors be installed in the same raceway as service-entrance conductors?