IG-123-EN version 11; 23/07/2021
22
Installation General instructions
cpg.0: GIS medium-voltage switchgear,
gas insulated, up to 40.5 kV,
in accordance with IEC Standard
6.3. Minimum installation distances
The minimum distances to the walls and ceiling, in
accordance with Standard IEC-62271-200 Annex AA, are as
follows:
Figure 6.1. Minimum installation distances detail
Minimum distances [mm]
Cubicle
Side wall (a)
> 100
Roof (b)
> 350*
Front clearance (c)
Operation:
> 1000
Cubicle
removal:
> 1500
Rear wall (d)
> 100**
(*) 150 mm, in the case of installation with gas ducting to outside the
cubicle room (see chapter 6.9)
(**) If the cubicle is AFLR 600 mm.
Table 6.1. Minimum installation distances
For other building work layouts, please check with
Ormazabal
6.4. Cable connection trench
The surface where the cubicles will be installed must be
level with a tolerance of ± 1 millimetre per metre. The
general layout of the cubicles should be checked to verify
the measurement of the medium- and low-voltage cable
area.
Figure 6.2. Cable trench with tracks detail
Figure 6.3. Cable trench detail
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