Question 7063 of 731 · Texas Journeyman Electrician Exam
Two 480 volt switchboards with exposed live parts face each other across an aisle (Condition 3). What is the minimum working space depth?
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 7063
- C: 4 ft
Explanation
Exposed live parts on both sides of the working space is Condition 3. For 151 to 600 volts to ground, Table 110.26(A)(1) requires a depth of 4 ft.
More questions: Equipment, Devices and Luminaires
- 7064What is the minimum width of the working space in front of a 200 ampere panelboard that is 20 in wide?
- 7065What is the minimum headroom of the working space for service equipment and panelboards rated 1000 volts or less?
- 7066Equipment rated 800 amperes or more has its working space within 25 ft of a personnel door. What must the door have?
- 7067What does the dedicated electrical space above a panelboard extend to?
- 7072Under NEC 2026, which equipment needs arc flash hazard marking under 110.16?
- 7027A hallway light must be controlled from three separate locations. Which combination of switches is used?