Updated to reflect the latest industry developments and safety practices, the 2004 NFPA 780: Installation of Lightning Protection Systems helps you maximize the benefits of various types of protection methods and devices. Approx. 50 pp.

Technical changes to this edition include:

• A main conductor, solid strip, was added for Class II material requirements for ordinary structures exceeding 75 ft in height
• Taller air terminals can be used to increase the spacing on flat or gently sloping roofs;
• Handrails may be used as a substitute for down conductors
• Additional separation between ground rods is required where multiple ground rods are used
• Additional guidance is provided for those instances in which it is necessary to install the grounding conductor directly on bedrock;
• The section entitled "Surge Suppression" was entirely rewritten;
• Titanium strike termination devices may now be used
• The section entitled "Faraday Cage" was replaced with "Metallic Cage"