Velatia ORMAZABAL gae.630, Manual

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IG-322-EN version 03; 22/07/2022
23
General instructions
SF
6
-insulated circuit-breaker panel:
Type
gae
.630 -1LSV(G)-/5/
in modular extensible design up to 24 kV, 20 kA
Transport and installation
3.10. Earthing
The circuit-breaker panel must be earthed in accordance
with DIN VDE 0141/0101.
The gae .630 circuit-breaker panel is fitted with an earthing
rail, which runs across the whole width of the base of the
panel.
As a measure to ensure an electrically conductive connection
of the metal enclosure, earthing rail and enclosure are
bolted with contact washers.
This makes sure that, in case of a ground leak or a double
ground leak, the fault currents are safely discharged to the
earth connection.
The earthing rail is equipped with a screw connection (M12)
for the connection of an earthing line to establish earthing
of the unit (Figure 3.16).
The earthing points on the cable fixing iron are occupied
by the cable lugs of the cable screens. The cable fixing
iron is designed with additional, freely assignable earthing
terminals.
To simplify assembly, the earthing points are provided with
M10 riveting nuts (Figure 3.16).
1
Earthing line connection
2
Earthing terminals
Figure 3.16.