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6. Assembly of the switchgear at site
6.7 Installation of the busbars
Preparation of the material
• Clean the insulation on the busbar sections
with a soft, dry cloth, and check for any
insulation damage. Remove greasy or
adhesive dirt.
• Busbar connections:
– The silver-plated surfaces of the
connections must be cleaned with a metal-
free non-woven cleaning cloth and thinly
and evenly coated with SYN-setral-EK 339
grease
– The non silver-plated surfaces of the
connections are either brushed with a wire
brush, preserving the grease film, or
cleaned with a metal-free non-woven
cleaning cloth and evenly greased with a
thin coat of SYN-setral-EK 339
• Prepare insulating covers 2 and lids 3 to suit
the relevant busbar connections and pull
them on the busbar. (For insulated busbars
only)
Figure 102: 12 / 17.5 kV panels, instalation of the busbars. The lower picture shows the installation at the busbar ends.
1 Busbar bushing
2 Insulating cover
3 Lid
4,7 Support for cover (at end panels only)
5 Washer, ISO 7089
6 Washer, 25 mm diameter
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