The NEMA type identifies the degree protection provided
by the enclosure.
Mutual Induction process that occurs when varying lines magnetic flux from
one conductor induce voltage adjacent conductor.23
Motor Insulation Class Standards established the National Electrical Manufacturers
Association (NEMA) meet motor temperature requirements
found different operating environments.
.
Although the NEC® advisory document, its use often
mandated state and local building codes.
National Electrical organization manufacturers electrical equipment that,
Manufacturers Association among other things, develops standards for electrical
(NEMA) equipment.
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.This is
the basic operating principle transformer.This definition applies a
full voltage starter.
Association (NFPA) The NFPA has been the sponsor the National Electrical
Code® (NEC®) since 1911. variety other starter types are also
available.The combination of
an ambient temperature 40°C and allowed temperature rise
equals the maximum winding temperature motor.The intent the NEC ®,
also called NFPA 70®, describe safe electrical practices.
National Electrical Code® document revised every three years based upon inputs to
(NEC and recommendations volunteer committee members the
National Fire Protection Association.
NEMA EnclosureType designation given enclosure based standards
published the National Electrical Manufacturers Association. margin
is also allowed provide for point the center the motor’s
windings where the temperature higher
