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Figure 56: Example of 12 kV switchgear on a foundation frame on concrete floor, with pressure relief to the outside (IEC
version only).
C Panel depth
H Panel height
G Width of operating aisle = 1000 mm
1) Minimum dimension
2) The dimension must be verified in the documentation of the relevant order
1 Operation aisle
2 Control cabinet
3 Opening for ventilation
4 Concrete
5 Opening for power cables
6 Door
7 Wall opening for pressure relief
8 Opening for LV cable
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