NFPA 780 Lightning Protection Systems

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Spanish Engineer

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Hi at all,
I have a question about NFPA 780. In page 6, NFPA 780 explains the two diferent material class, but I dont understand what kind cable I have to use for my building like main conductor.In this table is written 17 AWG but I think that is very fine. What does "size ea. strand" mean?.
Please say me a cable to use in this case and for example a catalogue of manufacturer.
Thanks in advance.
 
Nfpa 780

Nfpa 780

17awg is the size of the cable strands each cable is made up of a certain number strands the size of the cable depends if you are a class 1 or 2 installation and that is dependant on the height of the building.
 
Nfpa 780

Nfpa 780

thanks, but what is the cable that I have to use?. My building is 21 meters height and the class of my materials is Class 1.
Wait your response. Thanks again.
 
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