API 541 Third Edition-a revised and improved purchasing specification for form wound squirrel cage induction motors-250 horsepower and larger

API 541 Third Edition is a standard that covers the minimum requirements for all form wound squirrel cage induction motors above NEMA 440 frame sizes (normally 250 HP and above). The standard is intended to be used to describe motors that will be used by the petroleum industry. The purpose of API 541 is to serve as a comprehensive standard which can be used by specifiers of high performance motors. Users no longer have to prepare their own purchase specifications, and manufacturers can produce a standard motor that will be widely accepted and competitively priced. The new standard contains the following sections: (1) general requirements; (2) basic design; (3) accessories; (4) inspection, testing, and preparation for shipment; (5) guarantee and warranty; and (6) vendor's data.