ASSEMBLY OF THE SWITCHGEAR AT SITE 29
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5/14 Busbar barriers
a) Detail of a busbar bushing, sectional view. Always check that there is
proper contact between the metal tube in the bushing and the
busbar via the contact spring.
3.12 Busbar section (length)
29.1 Busbar mounting for single conductor
29.2 Busbar mounting for double conductor
29.3 Contact spring
29.4 Metal tube
b) Installation position of the phase barriers, viewed from top.
28 Bushing plates
29 Busbar bushing
29.2 29.4 29.3 3.12
The shrink-on sleeves must be
cut-out above the bores in the
busbars. The bores are required
for the inset of the contact spring 29.3.
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5/14
Caution:
The contact arm springs 29.3 or 8.3 must be
inserted during the installation of the
busbars. These contact springs prevent
damages by glow discharges inside the
bushings on Live busbars.
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