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Illustrate the difference between different types of insulation and enumerate the various classes of electrical equipment....

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Electrical Engineering

Illustrate the difference between different types of insulationand enumerate the various classes of electrical equipment. Giveexamples for each class.

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3.6 Ratings (419 Votes)
Class A Class A insulation consists of materials such as cotton silk and paper when suitably impregnated or coated or when immersed in a dielectric liquid such as oil Other materials or combinations of materials may be included in this class if by experience or tests they can be shown to be capable of operation at the Class A temperature Maximum allowed temperature IEC600341 NEMA MG11243 105C 221F Class B Class B insulation consists of materials or combinations of materials such as mica glass fibre asbestos etc with suitable bonding impregnating or coating substances    See Answer
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