Closure Of Extendable Busbar Sockets - ABB ZX0 Manual For Installation And Operation

− Check the position of the newly connected panel block,
align it if necessary, and fasten it to the foundation frame
with the panel fastening screws (figure 2.3.2.1).
− Lead the control wiring for the panel-panel connection
through the opening in the adjacent panel.
− Connect the earthing bars of the panel blocks together.
− Assemble the further panel blocks in the manner de-
scribed.
Fig. 2.3.2.10: View into the cable termination compartment: Earthing bar
2.3.3 Closure of extendable
busbar sockets
If your system is fitted with extendable end panels, the extendable
busbar sockets on the outsides of the end panels are as a rule
fitted ex-works with insulating blanking plugs (figures 2.3.3.1 a
and b).
If extendable busbar sockets at the ends of the end
panels are not closed off with insulating blanking
plugs, the blanking plugs must be fitted at site in
accordance with section 2.1.3 and with the aid of the assem-
bly drawings provided.
Operation of the switchgear with open busbar sockets (including
those in the course of the busbars, e.g. in sectionalizer panels,
etc.) is not permissible!
Fig. 2.3.3.1a: High dielectric strength blanking plugs in the busbar sockets
– sectional view
Fig. 2.3.3.1b: High dielectric strength blanking plugs in the busbar sock-
ets
M10 x 50 cheese head screw
with washers and nut
Tension clamp
Blanking plug
Busbar socket
Thrust plate
Manual ZX0 HB 600 en - Revision 05 | 25