IS 15999 : Part 7 : 2024/IEC 60034-7 : 2020 Rotating Electrical Machines - Part 7 Classification of Types of Construction, Mounting Arrangements and Terminal Box Position (IM Code)
(Superseding IS 2253 : 1974)
NATIONAL FOREWORD
This Indian Standard (Part 7) (Second Revision) which is identical to IEC 60034-7 : 2020 'Rotating electrical machines - Part 7: Classification of types of construction, mounting arrangements and terminal box position (IM Code)' issued by the International Electrotechnical Commission (IEC) was adopted by the Bureau of Indian Standards on the recommendation of the Rotating Machinery Sectional Committee and approval of the Electrotechnical Division Council.
This Standard was first published in 1964 and subsequently revised in 1974. This revision has been undertaken to align the standard with the latest version of IEC.
This standard supersedes IS 2253 : 1974
The text of the IEC standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:
a. Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and
b. Comma (,) has been used as a decimal marker, while in Indian Standards the current practice is to use a point (.) as the decimal marker.