Alger, Philip L. Formerly, Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, New York.
Herman, C. J. Insulating Materials Department, General Electric Company, Schenectady, New York.
- Additional Readings
The insulated copper or aluminum wire used in the coils of all types of electromagnetic machines and devices. It is made of single-strand wire insulated with enamel, varnish, cotton, glass, asbestos, or combinations of these. To meet the immense variety of uses and to gain competitive advantage, a large number of kinds of enamel and of fiber insulations have been developed and are widely available. To ensure that the many synthetic materials and combinations are properly applied, many elaborate test procedures have been devised to evaluate heat shock, solubility, blister and abrasion resistance, flexibility, and so on as covered in the National Electrical Manufacturers Association (NEMA) Standards. Most important, the thermal endurance is determined by repeated exposure to high temperature, moisture, and electrical stress, as specified in the standards developed by the American Society for Testing and Materials (ASTM).
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 9000 highly qualified scientists and 43 Nobel Prize winners.
MORE THAN 8500 articles and Research Reviews covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information