ABB 70AA01a-E HESG324442R112F Automatic DCS spare parts system

Description

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In electrical installations for industrial environments, busbar trunking systems
(BTSs) optimize the power distribution despite the inevitable modifications that
are carried out (additions, displacements, replacement of loads) and to facilitate maintenance work and safety verifications.
They are mainly used for:
– supplying sources of light, safety and low power distribution;
– lighting lines (medium power);
– power supply and distribution (medium and large power);
– supplying moving equipment (bridge cranes).
Busbar trunking systems are subject to the following Standards:
– IEC 60439 – 1 “Low-voltage switchgear and controlgear assemblies – Part 1:
Type-tested and partially type-tested assemblies”
– IEC 60439 – 2 “Low-voltage switchgear and controlgear assemblies – Part 2:
Particular requirements for busbar trunking systems (busways)”.
BTSs consist of:
– conductors/busbars;
– coupling: electrical and mechanical connecting elements for different elements;
– straight elements: base elements of the line for carrying energy from the source
to the loads;
– routing elements: flexible joints for the creation of curves or overcoming
obstacles, horizontal and vertical angles, tee joints and cross elements to
create any type of route;
– pull boxes: elements that enable lamps or operating machines to be supplied
directly with integrated protection (fuses or circuit breakers);
– suspensions/accessories: hanging and fixing elements for BTS and for any
support required for special loads (lighting components, etc).