General instructions
Installation
IG-136-EN version 10; 23/06/2016
24
cgm.3 system
Fully SF6 gas insulated medium voltage switchgear up to 40.5 kV in accordance with IEC Standards
Circuit-breaker function with AV / RAV driving
mechanism
Figure 4.9 Dimensions [mm] of the cable trench for cgm.3-v
with AV / RAV driving mechanism.
Front and rear cable input
or output (D1)
Side cable input or
output (D2)
Trench necessary for the circuit-breaker function with AV / RAV driving mechanism
Cable data
Approximate radius
of curvature*
[mm]
Minimum depth
Cable insulation Cable type
Cable section
[mm
2
]
Cable diameter
[mm]
D1 [mm] D2 [mm]
Height 1400 mm(***)
Dry insulation
Single-core 18/30 kV
< 150 (**) 41 555 750 750
185 43 590
800 800
240 45.2 640
300 47.5 685
850 900
400 48 745
3-core 18/30 kV < 150 92.7 805 1200 1200
Height 1745 mm
Dry insulation
Single-core 18/30 kV
< 150 (**) 41 555 400 400
185 43 590
400 500
240 45.2 640
300 47.5 685
500 600
400 48 745
3-core 18/30 kV < 150 92.7 805 850 850
(*) Check against the data of the manufacturer of the cable used.
(**) 150 mm
2
cable only valid up to 21 kA.
(***) Exclusively for cgm.3-v cubicles .
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