NFPA - National Fire Protection Association - is the U.S. authority on fire, electrical and building safety.
NFPA develops, publishes, and disseminates more than 300 consensus codes and standards intended to minimize the possibility and effects of fire and other risks. Virtually every building, process, service, design, and installation in society today is affected by NFPA documents.
National and International organizations producing codes and standards - ANSI, ISO, DIN, BSi and more.
Description of NEMA electrical enclosures types.
F-rated, T-rated and L-rated fire-stop systems.
Maximum fire sprinkler protected area vs. classification and construction.