The new 644-page NEMA MG1, “Motors and Generators,” has just been released and can be purchased from Document Center Inc. now. This 2011 Edition assists users in the proper selection and application of motors and generators. It contains practical information concerning performance, safety, testing, construction and manufacture of alternating-current and direct-current motors and generators.
NEMA MG1:2011 applies to the classification of degrees of protection provided by enclosures for rotating electrical machines. It defines the requirements for protective enclosures that are in all other respects suitable for their intended use and which, from the point of view of materials and workmanship, ensure that the properties dealt with in this standard are maintained under normal conditions of use.
Although some definite-purpose motors and generators are included, the standards do not apply to machines such as generators and traction motors for railroads, motors for mining locomotives, arc-welding generators, automotive accessory and toy motors and generators, machines mounted on airborne craft, etc.
NEMA standards are available from Document Center Inc. at our website, www.document-center.com. Or contact us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com). We have been selling standards and services for standards users for 30 years and can assist you with all your conformance documentation requirements.