IG-123-EN version 11; 23/07/2021
23
General instructions
cpg.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
Installation
6.4.1. Recommended dimensions
Minimum recommended dimensions based on the trench
dimensions used in the tests in accordance with Standard
IEC 62271-200. The dimensions of the trench may vary in
accordance with the minimum radius of curvature of the
cables used.
Figure 6.4. Trench dimensions
Minimum distances [mm]
Trench
Depth (e)
> 500*
Depth (f)
750*
(*) The dimensions of the trench depend on the characteristics of the
cables used.
Table 6.2. Minimum recommended dimensions for the cable connection
trench
6.5. Fixing to floor
Secure the cubicles to the oor at the relevant xing points
inside the bottom supports using the M8X50 hexagonal
bolts provided with the material.
Figure 6.5. Fixing points inside the cable compartment
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