NFPA 780 - Lightning Protection Institute
NFPA 780 - Lightning Protection Institute
NFPA 780 - Lightning Protection Institute
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Stacks<br />
• Clarified definition of heavy-duty stack.<br />
(6.1)<br />
• Permits materials other than lead<br />
coatings. (6.4.1.1)<br />
• Clarifies air terminal placement. (6.4.2.2)<br />
• Clarifies electrode requirement (6.10.2)<br />
Presentation to LPI Meeting, March 2007