Installation
14
General instructions
cgmcosmos
system
Medium voltage switchgear and control gear, fully insulated in SF
6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4.4 Incoming cable pits recommended
Recommended minimum dimensions based on the
dimensions of the trench used in the tests according to
standard IEC 62271-200. Depending on the curvature
radius of the cables these dimensions may vary.
Feeder function
Fig. 4.4
Dimensions [mm] of cable trench for
cgmcosmos
-l
Trench needed for the feeder function [“L” or “T” terminal 400/630 A]
Cable data
Guiding
radius of
curvature*
[mm]
Minimum depth
Cable
insulation
Cable type
Cable cross-
section [mm
2
]
Cable
diameter
[mm
2
]
D2
D4
Dry insulation
Single phase
150
38
500
370
550
185
42
600
400
650
240
42
300
48
750
550
800
400
48
Three phase
[6]
150
85
600
600
185
85
D2 for front (F) or rear (R) input.
D4 for side input.
* Each cable should be checked against the manufacturer's data.
Dimensions in mm.
[4]
[6] For other types of cable sections, please contact
Ormazabal
.
Summary of Contents for cgmcosmos-2lv
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