Core TradesQuestion 17 of 700
What is the MINIMUM headroom (vertical clearance) required for the working space about a service panel or other electrical equipment rated 600 volts or less?
a.6 feet 6 inches
b.5 feet 0 inches
c.7 feet 6 inches
d.4 feet 6 inches
Explanation
The code requires at least 6 feet 6 inches of headroom in the working space so a worker can stand and access equipment safely. 5 feet and 4 feet 6 inches are too low, and 7 feet 6 inches overstates the requirement.
Law Reference: 2025 CA Electrical Code (CEC) §110.26 (Working Space)Practice all 700 questions free — no signup required.
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