Feeder tap checklist playbook
Goal
Verify a feeder tap meets length, protection, and conductor sizing rules.
Inputs you must know before you start
- Tap length and routing.
- Feeder OCPD rating and load.
- Conductor size, insulation, and termination ratings.
The path (in order)
- Identify which tap rule applies to the installation.
- Verify tap length and physical protection requirements.
- Confirm conductor ampacity meets the tap rule and terminations.
- Verify overcurrent protection and equipment ratings.
- Document the tap rule used for inspection.
This is
A practical checklist for compliant feeder taps.
This is not
A design guide for full feeder sizing or service taps.
Inspection-ready checklist
- Tap rule identified and documented.
- Tap length and routing within allowed limits.
- Conductor ampacity and terminations compliant.
- Physical protection provided where required.
- Panel labeling updated.
Worked example
A 10-foot tap feeds a small panel. The tap conductors meet the short tap conditions, are sized per termination limits, and are protected by the feeder OCPD. The tap rule is documented on the one-line.
Cross references
- Primary: 240.21
- Secondary: 240.4, 310.16