Lightning Protection Institute

Establishing the highest standards and guidelines for the design, installation, and inspection of lightning protection systems.

LPI 175 – 2023 Standard for the Design – Installation – Inspection of Lightning Protection Systems

The Lightning Protection Institute (LPI) adopts the latest edition of the NFPA 780 Standard as its reference document for system design. LPI advocates use of LPI-IP as the third-party inspection authority for system design, components and installation. LPI publishes this booklet, LPI 175, based on NFPA 780, with additional explanatory material helpful to installer and inspector member personnel.