Main Type 5
- Last UpdatedDec 01, 2025
- 1 minute read
This is a completely open cutout with flat top, see the figure below.
Figure 2:18. Main type 5, clearances.
All the normal profile types are allowed including U-bars.
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Irrelevant radii: |
R2, R3, R5, R7, R8. In normal use, R1 and R9 are irrelevant as well. |
For the use of C1/C3 and C5/C7, respectively, see the general principles above.
Normally C3 and C5 would be defined, and C1 and C7 would be supposed to be calculated from them. For other profile types than T:s, C1 is equal to C3. Therefore, if both C1 and C3 are given, C3 will be used only for the T-bars.