Electrical busbar system
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Electrical busbar systems (sometimes simply referred to as busbar systems) are a modular approach to
electrical wiring Electrical wiring is an electrical installation of cabling and associated devices such as switches, distribution boards, sockets, and light fittings in a structure. Wiring is subject to safety standards for design and installation. Allowable ...
, where instead of a standard cable wiring to every single electrical device, the electrical devices are mounted onto an adapter which is directly fitted to a current carrying
busbar In electric power distribution, a busbar (also bus bar) is a metallic strip or bar, typically housed inside switchgear, panel boards, and busway enclosures for local high current power distribution. They are also used to connect high volt ...
. This modular approach is used in
distribution board A distribution board (also known as panelboard, breaker panel, electric panel, DB board or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse ...
s,
automation Automation describes a wide range of technologies that reduce human intervention in processes, namely by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines ...
panels and other kinds of installation in an electrical enclosure. Busbar systems are subject to safety standards for design and installation along with
electrical enclosure An electrical enclosure is a cabinet for electrical or electronic equipment to mount switches, knobs and displays and to prevent electrical shock to equipment users and protect the contents from the environment. The enclosure is the only pa ...
according to IEC 61439-1 and vary between countries and regions.


Content & types of busbar systems

A busbar system usually contains couple of busbar holders, busbars, Adapters to mount devices, clamps either with protective covering or without covering to powerup or distribute the current from the busbar system & busbar mountable electrical devices. Electrical busbar systems can be differentiated by the distance between center of each busbar and vary according to maximum current carrying capacity of the system which depends on IEC standards. commonly known busbar system types. * 40 mm Busbar System (Current carrying capacity up to 300–400 Amps) * 60 mm Busbar System (Current carrying capacity up to 800–2500 Amps) * 100 mm Busbar System (Current carrying capacity up to 1250 Amps) * 185 mm Busbar System (Current carrying capacity up to 2500 Amps)


Advantages and disadvantages over traditional electrical wiring


Advantage

* Electrically Safe installation up to IP 60 inside the cabinet, * Drastically reduce space required inside the cabinet * Easy trouble shooting in case of switch gear failure * Pre-tested short circuit rating * Mounting of 2, 3, 4 or 5 pole switchgear in a single construction * Time saving during construction of the cabinet


Disadvantages

* Commercially not viable if the number of switch gears is low * Specialists needed for construction of the busbar system from a wiring diagram * Lack of adapters for mounting different electrical devices on the busbar * Special type of busbars needed to construct busbar system which can carry current more than 800 Ampere


See also

* 10603 – a frequently used
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(RoHS) *
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References

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