I am a dessing a The lightning shelter’s , (1.5m x 1.5 m x 2.2 m ), I see the NFPA 780, but it says only that the metallic structure must be of major the >4.8mm, I did not fount another conditions.
What conditions we need for built a lightning shelter’s ?, do you know some standard NEC; IEEC; IEC, etc?
What conditions we need for built a lightning shelter’s ?, do you know some standard NEC; IEEC; IEC, etc?