IEC 60085:1957 ED1

Recommendations for the classification of materials for the insulation of electrical machinery and apparatus in relation to their thermal stability in service IEC 60085:1957 ED1

Publication date:   Jan 1, 1957

Scope

Describes recognized thermal classes for the insulation of electrotechnical products. Considers the thermal evaluation of insulation materials and systems, their interrelationship and the influence of service conditions. Defines the responsibility for assigning thermal identification and classification.