InspectionElectrical
Lightning Protection Inspection
Protect buildings from lightning strikes with our NFPA 780 inspection checklist. Covers air terminals, conductors, grounding, and surge protection devices.
Free Template
Overview
This lightning protection system inspection checklist ensures compliance with NFPA 780 standards. Regular inspection of air terminals, down conductors, bonding, and grounding maintains effective lightning protection for commercial buildings.
Key Benefits
Complete Checklist
Air Terminals and Rods
- Inspect lightning rod condition
- Verify proper spacing (20 feet max)
- Check mounting security
- Verify minimum rod height
- Inspect for corrosion or damage
- Check roof penetration seals
- Verify proper rod materials
- Inspect terminal connections
- Check for proper grounding
- Verify zone of protection
Down Conductors
- Inspect conductor routing
- Verify proper conductor size
- Check conductor connections
- Inspect for physical damage
- Verify proper spacing
- Check conductor supports
- Inspect at roof-to-wall transitions
- Verify minimum number of paths
- Check for proper bends
- Inspect conductor splices
Grounding System
- Test ground resistance (25 ohms max)
- Inspect ground rods or plates
- Verify proper ground depth
- Check ground rod connections
- Test continuity to ground
- Inspect ground ring if present
- Verify proper conductor size
- Check grounding electrode spacing
- Inspect bonding to building steel
- Test earth resistance
Bonding Requirements
- Verify bonding of metal bodies
- Check HVAC equipment bonding
- Inspect metal roof bonding
- Verify piping system bonds
- Check structural steel bonding
- Inspect metal ductwork bonds
- Verify antenna bonding
- Check metal fencing bonds
- Inspect bonding jumpers
- Verify proper bonding conductors
Surge Protection Devices
- Inspect SPD condition
- Test SPD operation indicators
- Verify proper SPD installation
- Check SPD grounding connections
- Test SPD protection level
- Verify proper SPD sizing
- Inspect service entrance SPD
- Check panel-level SPDs
- Inspect point-of-use SPDs
- Document SPD test results
Documentation and Compliance
- Review original installation plans
- Verify NFPA 780 compliance
- Document any modifications
- Check local code requirements
- Photograph system components
- Update as-built drawings
- Document test results
- Note deficiencies found
- Recommend repairs or upgrades
- Issue inspection certificate
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