4.6. Connecting the cubicles
The cubicles must be joined as indicated in the Spare parts
and accessories instructions
Ormazabal
’s
RA 146
spares
and accessories document, which is supplied with the
materials kit for connecting cubicles.
4.7. Earthing the switchgear
When connecting the general earth collector, follow the
fi gure below.
Figure 4.42.
Equipment earthing
1.
Bolt the earth strip between every 2 medium-voltage
cubicles, in the rear of the cable compartment, using 2
hexagonal M8 x 20 bolts. Apply a torque of 15 Nm.
Tools:
- 13 mm open-end wrench.
- Torque wrench with 13 mm adapter.
2.
Connect the end earthing bar, marked with the symbol
, to the general earth connection of the facility.
Earthing the equipment is an essential condition for
safety.
IG-078-EN version 12; 23/04/2020
39
General Instructions
cgmcosmos
: Medium-voltage cubicles with full insulation
in SF
6
gas up to 24 kV in accordance with IEC Standard
Installation
Содержание velatia cgmcosmos
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