Core TradesQuestion 135 of 700
For a 120/240-volt panelboard with no exposed live parts on the opposite side (Condition 1), what is the MINIMUM required clear working depth in front of the equipment?
a.24 inches
b.36 inches
c.30 inches
d.42 inches
Explanation
Condition 1 requires a minimum clear working depth of 36 inches (3 feet) in front of the equipment so a worker can operate and service it safely. The working space must also be at least 30 inches wide and provide 6.5 feet of headroom. 24 and 30 inches are less than the required depth.
Law Reference: 2025 CA Electrical Code, Art. 110.26Practice all 700 questions free — no signup required.
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