What is IEC 60034-8-1:2014 ?

IEC 60034-8-1:2014 is a widely recognized standard that provides a framework for classifying different types of electrical motors. The standard is divided into four parts, each covering a different aspect of classification.

The first part of IEC 60034-8-1:2014 provides guidelines for the classification of electrical motors based on their construction. This includes the classification of motors into four categories:

* Type A: Open type motors, also known as "slip-type" motors, have a rotating armature that is connected to the output shaft. This type of motor is commonly used in applications where the armature voltage is higher than the rotor voltage.

* Type B: Closed type motors, also known as "rotary-type" motors, have a stationary armature that is connected to the output shaft. This type of motor is commonly used in applications where the armature voltage is lower than the rotor voltage.

* Type C: Split type motors, also known as "unified type" motors, have both a rotating armature and a stationary armature that is connected to the output shaft. This type of motor is commonly used in applications where both armatures have the same voltage.

* Type D: Over-running type motors, also known as "redundant type" motors, have a rotating armature that is connected to a separate drive shaft. This type of motor is commonly used in applications where the armature voltage is higher than the rotor voltage and where there is a need for redundancy.

The second part of IEC 60034-8-1:2014 provides guidelines for the classification of electrical motors based on their mounting arrangements. This includes the classification of motors into four categories:

*mounting type A: The mounting type A category includes motors that are mounted on a directly-connected machine, such as a server or a control system.

*mounting type B: The mounting type B category includes motors that are mounted on a flexible or semi-rigid support, such as a conveyor or a robot.

*mounting type C: The mounting type C category includes motors that are mounted on a rigid support, such as a mill or a press.

*mounting type D: The mounting type D category includes motors that are mounted on a separate support, such as a conveyor or a robot.

The third part of IEC 60034-8-1:2014 provides guidelines for the classification of electrical motors based on their cooling methods. This includes the classification of motors into four categories:

* cooling type A: The cooling type A category includes motors that have cooling by air, such as a fan or an impeller.

* cooling type B: The cooling type B category includes motors that have cooling by water, such as a pump or a circulator.

* cooling type C: The cooling type C category includes motors that have cooling by oil, such as a pump or a lubricator.

* cooling type D: The cooling type D category includes motors that have cooling by a combination of air and oil, such as a pump or a lubricator.

The fourth part of IEC 60034-8-1:2014 provides guidelines for the classification of electrical motors based on their protection characteristics. This includes the classification of motors into four categories:

* protection type A: The protection type A category includes motors that have protection against overcurrent, such as a fuse or a circuit breaker.

* protection type B: The protection type B category includes motors that have protection against overvoltage, such as a voltage regulator or a surge protector.

* protection type C: The protection type C category includes motors that have protection against overheating, such as a temperature sensor or a cooling system.