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Electrical Panel Clearance Requirements: NEC 110.26

Panel clearance mistakes are some of the most preventable code violations in the trade. Most aren't caused by misunderstanding the NEC-they're caused by late-stage jobsite changes.

Why 110.26 Gets Missed

Other trades encroach after electrical rough-in. Storage creeps into electrical spaces. Field conditions differ from plan assumptions. Final QA doesn't include dedicated clearance verification.

1) Working Space Is Not Optional

Electrical equipment likely to require examination, adjustment, servicing, or maintenance while energized needs proper working space. Don't assume a panel is "good" because it looked fine at rough-in.

2) Dedicated Space Above Equipment

The zone above equipment often gets compromised by piping, ductwork, or unrelated installations. Coordinate this early with mechanical/plumbing and reinforce at every site walk.

3) Keep It Clear Through Turnover

Clearance is not a one-time setup. It must remain compliant through final inspection and occupancy turnover.

Common 110.26 Failure Patterns

• Panels blocked by shelving or stored material
• Clearance reduced by added framing/finish details
• Encroachment from non-electrical systems
• No final verification pass before inspection request

Bottom Line

NEC 110.26 issues are avoidable when clearance is managed as a live condition, not a one-time milestone.

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Related internal guide

For a broader field reference, review the Complete NEC Code Guide for Electricians.

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