64 ZX2 GAS-INSULATED MEDIUM VOLTAGE SWITCHGEAR
3.9. Concluding installation work
• Remove all tools and other foreign bodies from
the switchgear.
• Refit any cladding, covers, cable ducts, etc.
removed during the installation work.
Hazard warning
Use only chlorine-free cleansers for
cleaning of the switchgear.
• Clean the external surfaces of the enclosure and
low voltage compartments where necessary.
• Touch up any damage to paintwork with a
suitable paint.
• Check that the switchgear room is in proper
condition for operation and establish that
condition if necessary.
3.7. Fitting blanking plugs
Innercone sockets (cable sockets and sockets for
voltage transformers) are equipped with dust
covers (Fig. 3.7.1) on the factory side.
Hazard warning
The dust covers are not voltage-proof.
Close unused cable sockets and voltage
transformer sockets with voltage-proof
• Treat the silicone insulating parts of
the blanking plugs and the sockets for
the voltage transformers as described
in section 3.1.3.
•
-
age transformer socket, if fitted.
• Insert the blanking plugs into the sock-
ets and, without tilting them, fasten
them in place by tightening the screws
to the specified tightening torque
3.8. Fitting insulating covers for unused outer
cones in double panels
• Close off all unused outer cones with insulating
covers in accordance with the manufacturer’s
instructions.
—
Fig. 3.7.1:
Dust cover for inner-
cone sockets (not
voltage-proof!)
—
Fig. 3.7.2:
Blind plug, voltage-proof
—
Fig. 3.7.1
—
Fig.3.7.2
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