Question
Download Solution PDFWhat is the maximum safe temperature of class H insulation
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
There are 7 class of insulating materials, each suitable for different application:
The permissible temperature limit at which the insulators may be worked safely without deterioration depends upon the type and class of the insulation as detailed below.
|
Class |
Maximum temperature in °C |
|
Class Y |
Maximum temperature 90°C |
|
Class A |
Maximum temperature 105°C |
|
Class E |
Maximum temperature 120°C |
|
Class B |
Maximum temperature 130°C |
|
Class F |
Maximum temperature 155°C |
|
Class H |
Maximum temperature 180°C |
|
Class C |
Maximum temperature above 180°C (limited stability up to 225°C) |
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