System P application guide
Vertical distribution busbar
Principle of the Prisma Plus solution
Just like the main busbar (horizontal), the distribution busbar (vertical) is
placed in the same depth of 400 mm at the front of the cubicles (without
affecting busbar efficiency), in the reserved 150 mm wide zone known as
the busbar compartment.
There are two possible busbars:
b flat, drilled, 5 or 10 mm thick busbars
b Linergy alu+copper channelled busbars.
In both cases, the installation principle is the same:
b in one 150 mm wide duct, by placing either:
v 1 Linergy busbar up to 1600 A
v 1 or 2 flat busbars: 80 x 5 mm up to 1600 A and
80 x 10 mm up to 2500 A
b in 2 associated 150 mm ducts, by placing either:
v a double Linergy busbar up to 3200 A
v a double 80 x 10 mm flat busbar up to 3200 A.
The neutral at the front
Just as for the horizontal busbar, the neutral of the vertical busbar is
placed at the front.
Connection logic throughout the switchboard is thus the same:
connections are simplified.
The catalogue / the standard / the tests / internal test report
Linergy Icw in ASEFA and Linergy temperature rise (up to 1600 A).
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Alternative solution
According to distributed current strength, the busbar can also be placed:
b at the back of the cubicle, with flat or Linergy busbars up to 1600 A
b in a 300 mm wide duct
b for heavy currents, the 300 mm duct (cat. no. 08403 width 300, depth
400 or cat. no. 08603 width 300, depth 600) allows mounting of
120 x 10 mm busbars:
v better access to connections
v CT mounting in duct on flat or Linergy busbars.
Linergy busbar at back of cubicle
For currents less than 630 A, the Powerclip busbar is also a “ready to
use solution”: an insulated busbar fitted with pre-cut-outs for tap-off
connection.
Powerclip busbar in cubicle
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System P application guide
Vertical distribution busbar
Technical / commercial / environmental selling points
The copper V aluminium upgrade for the new Linergy busbar offers
many technical advantages during implementation.
b Lighter weight.
Weight is far lighter due to the low density of aluminium.
Weight of a new 630 A busbar: 1.4 kg (Prisma: 3.8 kg), 1600 A: 4.1 kg
(Prisma: 10.4 kg).
These busbars are thus easier to handle and the risk of accident for
people is minimised (back problems, fatigue, etc.).
Transport and installation of cubicles is facilitated.
Linergy busbars
b A new more rigid bar.
The new busbar is made up of closed bars and a continuous groove
running the full length.
This new highly technical bar design, made possible by the malleability of
aluminium, guarantees the bar better mechanical rigidity. Thus, in event
of a short-circuit, the risk of breakage or deformation is lower and the
number of supports can be reduced.
b Maximum power in a compact volume.
The profiling process allows production of complex shapes, with internal
partitions, increasing current flow surface. While preserving smaller
external dimensions, busbar efficiency is optimised.
Up to 1600 A, the busbar is installed in a duct 150 mm wide and 400 mm
deep.
b Always at the right temperature.
The increased exchange surface increases natural convection of busbars.
Anodisation of bars increases heat loss by radiation (and thus discharge
of calories) and protection against oxidation (appearance and lifetime) as
well as insulating the bar (safety).
Mounting the Linergy busbar
b An aluminium bar with copper quality contact.
Thermal copper powder spraying takes place at supersonic speed over
the entire busbar. It forms a rough surface of exceptional hardness. The
quality of the electrical connection is thus increased by multiplication
of contact points. The result is superior to the traditional copper-copper
connection.
b With respect to the environment, choice of aluminium is an asset.
This is because this resource is available in large quantities whereas
copper is becoming rare.
Furthermore, Linergy busbars are delivered pre-cut to the right length:
thus avoiding scraps synonymous of material loss.
Besides the advantages due to aluminium technology, Linergy
design allows:
b Extreme connection flexibility.
Feeders can be connected at any level of the busbar, without prior drilling,
by sliding screws, with easy access from the front: easy extension.
b Simple mounting of the Linergy busbar in cubicle :
v the supports are easily fixed to the framework and are reversible
(busbar to the right or left)
v partitioning ensuring form 2 throughout busbar height, is possible once
the busbar has been installed.
Form 2 partitioning
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