Rosslyn, Va.-based National Electrical Manufacturers Association (NEMA) has published the 2014 edition of its Electrical Standards & Products Guide (ESPG), a comprehensive listing of NEMA electrical standards as well as an extensive directory of manufacturers and their products.
ESPG is used by military, government, and private buyers who work in lighting, motors, and industrial controls, transmission & distribution, transportation, medical imaging, architecture & construction, and other industries that specify and use electrical equipment.