1 Scope
This part of IEC 60034
specifies the IM Code, a classification of types of construction, mounting arrangements and the terminal box position of rotating electrical machines.
Two systems of classification are provided as follows:
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– Code I (see Clause 4):
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An alpha-numeric designation applicable to machines with end-shield bearing(s) and
only one shaft extension.
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– Code II (see Clause 5):
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An all-numeric designation applicable to a wider range of types of machines including
types covered by Code I.
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The type of machine not covered by Code II is fully described in words.
The relationship between Code I and Code II is given in Annex A.