Conductivity and durability are essential characteristics

Trunking systems are intended to carry high currents; therefore, their electrical conductivity is a key parameter. Constructing a busbar or busway out of highly conductive copper brings about advantages at several levels:


1) The ability to transport high power in a limited space


Busbars must sometimes be installed within a very limited space such as a switchboard or other electrical equipment


The costs of busway enclosures and support structures rise with the size of the conductor


2) Low energy losses, resulting in:


Limited heat production—a considerable advantage when installing busbars inside compact switchboard cabinets or other electrical equipment


Reduced energy costs and a lower life cycle cost of the installation


The environmental benefit of reduced CO2 emissions


Electrical installations in buildings and switching stations are built for a long useful life—usually several decades. Durability is consequently another essential quality for a trunking system


Joints and connections must be able to withstand cyclical loading/unloading


Busbar and busway materials must have sufficient strength to withstand the mechanical forces of short circuit currents


The busbar material must resist accelerated corrosion, even in chemically aggressive environments

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