Pictorial Glossary

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Vydal: Siemens, s.r.o. Autor: Siemens Industry

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variety other starter types are also available. NEMA EnclosureType designation given enclosure based standards published the National Electrical Manufacturers Association. . National Electrical Code® document revised every three years based upon inputs to (NEC and recommendations volunteer committee members the National Fire Protection Association.This definition applies a full voltage starter.The combination of an ambient temperature 40°C and allowed temperature rise equals the maximum winding temperature motor. The NEMA type identifies the degree protection provided by the enclosure.The intent the NEC ®, also called NFPA 70®, describe safe electrical practices.This is the basic operating principle transformer. Although the NEC® advisory document, its use often mandated state and local building codes. Association (NFPA) The NFPA has been the sponsor the National Electrical Code® (NEC®) since 1911.23 Motor Insulation Class Standards established the National Electrical Manufacturers Association (NEMA) meet motor temperature requirements found different operating environments. margin is also allowed provide for point the center the motor’s windings where the temperature higher. National Fire Protection private, nonprofit organization with international membership. Motor Starter Often refers contactor and overload relay assembled together remotely control the operation motor while providing overload protection. Mutual Induction process that occurs when varying lines magnetic flux from one conductor induce voltage adjacent conductor. National Electrical organization manufacturers electrical equipment that, Manufacturers Association among other things, develops standards for electrical (NEMA) equipment