Description : What are the classes of insulation?
Last Answer : Y - 90ο C (max) cotton, silk, paper, wood without oil impregnation A - 105ο C Materials of class Y impregnated with natural resins,insulating oils. E - 120ο C Synthetic resin enamels, cotton and ... mica with silicon resins. C - >180ο C Mica, ceramics, glass, quartz and asbestos without binders.