NFPA 780 - Lightning Protection Institute

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Bonding General provision to strengthen bonding requirements. • Metallic piping. (4.20.1.1) • Ground electrodes of different systems. (4.14.1) • Prohibition of piping use as electrode. (4.13.1.3) Intent is to prevent lightning damage observed on metallic piping systems in the past few years. Presentation to LPI Meeting, March 2007
Grounding • No more terminals! Electrodes instead! • Clarifies ground rod depth vs. separation effects. (4.13.2.4) • Complete rewrite of 4.13.8.1 (Shallow Topsoil) – Clarifies requirements for electrode depth. – Permits ring, radial or plate electrode and combinations thereof. Presentation to LPI Meeting, March 2007
Page 1 and 2: What to expect in the 2007 NFPA 780
Page 3 and 4: Objective Familiarize with major re
Page 5 and 6: Editorial Changes Many revisions ed
Page 7 and 8: Strike Terminations • Clarified p
Page 9 and 10: Strike Terminations Committee Meeti
Page 11: Handrails as Conductors • Concern
Page 15 and 16: Surge Protection • New Definition
Page 17 and 18: Watercraft • Entirely rewritten C
Page 19 and 20: Annexes • Held major revisions to
Page 21 and 22: Equipotential Bonding Problem: AHJs
Page 23 and 24: Equipotential Bonding Root cause A
Page 25 and 26: Initiatives for Next Cycle • Comp
Page 27 and 28: NFPA 780 is your standard. Particip
Page 29 and 30: Presentation to LPI Meeting, March

NFPA 780 - Lightning Protection Institute

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