U [kv] | D1 [m] | D2 [m]
------------------------
2.5    | 0.041  | 0.060
3.0    | 0.035  | 0.055
3.5    | 0.031  | 0.051
4.0    | 0.028  | 0.048
4.5    | 0.027  | 0.044
5.0    | 0.025  | 0.043
5.5    | 0.025  | 0.041
6.0    | 0.023  | 0.038