Insulation Group
Insulation group is the classification of equipment according to environmental and operating conditions and takes into account
- the reduction of insulation
of equipment due to environmental effects at the site,
- Increases in voltage that result from activities in the plant or in the atmosphere
- direct results of insulation m
alfunction
depending on short-circuit power.
| Insulation group |
Reduction in insulation due to environmental influences |
Loading due to overvoltages |
|
A0
|
low
|
very small
|
|
A
|
low
|
small
|
|
B
|
medium
|
medium
|
|
C
|
large
|
large
|
|
D
|
very large
|
large
|
(source: DIN 57110b / VDE 0110b (2/79) page 1 f.)
|
