NFPA 780:2023

Chapter 1 Administration 1.1 Scope. 1.2 Purpose. 1.3 Listed, Labeled, or Approved Components. 1.4 Retroactivity. 1.5 Mechanical Execution of Work. 1.6 Maintenance. 1.7 Periodic Inspection. 1.8 Units of Measurement. Chapter 2 Referenced Publications 2.1 General. 2.2 NFPA Publications. 2.3 Other Publications. 2.4 References for Extracts in Mandatory Sections. Chapter 3 Definitions 3.1 General. 3.2 NFPA Official Definitions. 3.3 General Definitions. Chapter 4 General Requirements 4.1 General. 4.2 Materials. 4.3 Corrosion Protection. 4.4 Mechanical Damage or Displacement. 4.5 Strike Termination Devices. 4.6 Strike Termination Devices on Roofs. 4.7 Zones of Protection. 4.8 Conductors. 4.9 Conductor Fasteners. 4.10 Masonry Anchors.4.11 Connectors. 4.12 Grounding Electrodes. 4.13 Common Bonding of Grounded Systems. 4.14 Potential Equalization. 4.15 Bonding of Metal Bodies. 4.16 Metal Antenna Masts and Supports. 4.17 Concealed Systems. 4.18 Structural Metallic Systems. 4.19 Surge Protection. Chapter 5 Protection for Miscellaneous Structures and Special Occupancies 5.1 General. 5.2 Masts, Spires, Flagpoles. 5.3 Facilities That Handle or Process Combustible or Explosive Dust. 5.4 Metal Towers and Tanks. 5.5 Air-Inflated Structures. 5.6 Concrete Tanks and Silos. 5.7 Guyed Structures. 5.8 Rooftop Helipads. 5.9 Fabric Structures. Chapter 6 Protection for Heavy-Duty Stacks 6.1 General. 6.2 Materials. 6.3 Strike Termination Devices. 6.4 Conductors. 6.5 Fasteners. 6.6 Splices. 6.7 Reinforced Concrete Stacks. 6.8 Bonding of Metal Bodies. 6.9 Grounding.6.10 Metal Stacks. 6.11 Metal Guy Wires and Cables. Chapter 7 Protection for Structures Containing Flammable Vapors, Flammable Gases, or Liquids That Can Give Off Flammable Vapors 7.1 Applicability. 7.2 Principles of Protection. 7.3 Protective Measures. 7.4 Operating Facilities (Non-Storage Applications). 7.5 Storage Tanks Under Pressure. 7.6 Aboveground Tanks at Atmospheric Pressure. 7.7 Earthen Containers at Atmospheric Pressure Containing Flammable Vapors or Liquids That Give Off Flammable Vapors. 7.8 Tank Batteries. Chapter 8 Protection of Structures Housing Explosive Materials 8.1 Application. 8.2 General. 8.3 Types of Lightning Protection. 8.4 Grounding. 8.5 Bonding. 8.6 Surge Protection. 8.7 Protection for Specific Facilities. 8.8 Metallic Fences. 8.9 Maintenance and Inspection Plan. 8.10 Inspection, Testing, and Maintenance.Chapter 9 Protection for Wind Turbines 9.1 General. 9.2 Fundamental Principles of Protection. 9.3 Protection of Electrical and Mechanical Control Systems. 9.4 Grounding. Chapter 10 Protection for Watercraft 10.1 General. 10.2 Materials. 10.3 Strike Termination. 10.4 Conductors. 10.5 Grounding. Chapter 11 Protection for Airfield Lighting Circuits 11.1 General. 11.2 Application. 11.3 Purpose. 11.4 Airfield Lighting Counterpoise System. Chapter 12 Protection for Solar Arrays 12.1 General. 12.2 Fundamental Principles of Protection. 12.3 Strike Termination Devices. 12.4 Protection of Electrical and Mechanical Systems. 12.5 Grounding.Annex A Explanatory Material Annex B Principles of Lightning Protection Annex C Explanation of Bonding Principles Annex D Inspection and Maintenance of Lightning Protection Systems Annex E Ground Measurement Techniques Annex F Protection for Trees Annex G Protection for Picnic Grounds, Playgrounds, Ball Parks, and Other Open Places Annex H Protection for Livestock in Fields Annex I Protection for Parked Aircraft Annex J Protection of Smart Structures Annex K Guide to International Standards Dealing with the Selection of SPDs for Use on Photovoltaic (PV) Installations Annex L Lightning Risk Assessment Annex M Guide for Personal Safety from Lightning Annex N Considerations for Nonmetallic Tanks Containing Flammable Vapors or Liquids that Give Off Flammable Vapors Annex O Informational References