Commercial electricians use this workflow to draft a working-space clearance checklist for a 480-volt panel in a tenant electrical room where boxes are stored in the clearance. The usual failure is storage, not the panel itself. The draft is arranged so a licensed person can review it against NEC 110.26 and the local amendment. It is not a signed inspection, a code determination, or a price commitment.
When to use it
Use this when you need a working-space clearance checklist and the job matches this situation: a 480-volt panel in a tenant electrical room where boxes are stored in the clearance.
What to gather first
- depth
- width
- height
- dedicated space
- illumination
- door swing
How to check the draft
The usual failure is storage, not the panel itself. Compare each line with NEC 110.26. If a section number was not taken from the book or the adopted code, mark it unverified.
What this page does not do
It does not replace a permit, a manufacturer instruction, or the judgment of the person who signs the document. Northline Electric in the sample is an illustration, not a real firm.