We are specifying a fire rated MC cable that part of it will be underground (from utility transformer to the building). The underground part will be installed in existing conduit, then it will be pulled through to a crawl space then to the fire pump room. My question, the specification of the cable says it's rated for wet location but it's doesn't say anything about underground. Is underground application included as part of the welt location? Is the crawl space considered to be part of the building or the cable doesn't have to be 2-hrs rated?
Thanks,
Thanks,