Ormazabal velatia cgmcosmos, General Instructions Manual

Page: 21 / 120

4.4.1. Cubicles with internal arc in tank up to 20 kA
[7]
- 0.5 s
[7]
Tests carried out with a test current of 21 kA.
Feeder function, busbar rise and cable rise
Dimensions in mm.
Front and rear cable input or output (D1/D2).
Side cable input or output (D3/D4).
Figure 4.4.
Dimensions [mm] of the cable trench for
cgmcosmos
-l ,
cgmcosmos -rb and cgmcosmos -rc
Trench necessary for the feeder, busbar rise and cable rise ["L" or "T" Terminal 400/630 A]
Cable data
Approximate
radius of
curvature*
[mm]
Minimum depth
Cable insulation Cable type
Cable
section
[mm
2
]
Cable
diameter
[mm]
D1 D3
Height
1300 mm
Dry insulation
Single-phase
150 38 500 350 400
185 42
600 400 500
240 42
300 48
750 600
650
400 48
Three-phase
150 85
600
185 85
D2 D4
Height
1740 mm
Dry insulation
Single-phase
150 38 500
(T) 0*
(F) 250
400
185 42
600
(T) 150
(F) 350
500
240 42
300 48
750
(T) 250
(F) 450
650
400 48
Three-phase
150 85
(T) 300
(F) 550
500
185 85
* Check against the data of the manufacturer of the cable used.
(T) Rear cable input or output.
(F) Cable front input or output.
Table 4.2.
Trench necessary for the feeder, busbar rise and cable rise function
IG-078-EN version 12; 23/04/2020
21
General Instructions
cgmcosmos
: Medium-voltage cubicles with full insulation
in SF
6
gas up to 24 kV in accordance with IEC Standard
Installation