110.16(B) is very much required an arc flash calculation for service rated 1,200A or larger before an appropriate label can glue on the gear cover. So, if a building has main service @ 1,200A or larger, is it better to do arc flash calculation through all system and comply with NFPA 70E as well?
Is NFPA 70E an option or we have to comply all the time? i.e. provide arc flash calculation and labels for all elec. equipment?
Is NFPA 70E an option or we have to comply all the time? i.e. provide arc flash calculation and labels for all elec. equipment?