Circuit-breaker function with AV3 driving mechanism
Dimensions in mm.
Front and rear cable input or output (D1/D2)
Side cable input or output (D3/D4).
Figure 4.11.
Dimensions [mm] of the cable trench for
cgmcosmos
-v
with
AV3 driving mechanism
Trench necessary for the circuit-breaker function with AV3 driving mechanism
Cable insulation
Cable type
Cable
section
[mm
2
]
Cable
diameter
[mm]
Approximate
radius of
curvature*
[mm]
Minimum depth
D1
D3
Height
1300 mm
Dry insulation
Single-phase
150**
38
500
550
400
185
42
600
650
650
240
42
300
48
750
800
800
400
48
Three-phase
150
85
850
850
185
85
D2
D4
Height
1740 mm
Dry insulation
Single-phase
150
38
500
370
400
185
42
600
370
650
240
42
300
48
750
370
800
400
48
Three-phase
150
85
600
850
185
85
* Check against the data of the manufacturer of the cable used.
** Valid exclusively for functions with I
cc
21 kA 1 s.
Table 4.9.
Trench necessary for the circuit-breaker function with AV3 driving mechanism
IG-078-EN version 12; 23/04/2020
28
Installation
General Instructions
cgmcosmos
: Medium-voltage cubicles with full insulation
in SF
6
gas up to 24 kV in accordance with IEC Standard
Summary of Contents for velatia cgmcosmos
Page 119: ......
