Posts Tagged ‘type tested’

Busbar and distribution systems in electrical switchboards : make or buy?

May 14th, 2009 | 38 Comments | Posted in Panel Building
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3-montage-cuivre-packshotFor more than 30 years, electrical equipment manufacturers have developed some very attractive busbar and distribution systems (standard busbar profiles & sizes, busbar supports, comb busbar, distribution systems & accessories) to distribute power inside these electrical equipments in an easy and safe way, especially when they are type-tested.
As far as I see it a lot of panel builder use partially or totally these busbar systems


New standard IEC61439-2 for low-voltage switchgear and controlgear assemblies

April 3rd, 2009 | 7 Comments | Posted in Panel Building
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Last week I met Jean-Paul Lionet, a member of IEC technical committee who participates to the evolution of Low Voltage Switchgear & Control Gear Assemblies standards. Below is the summary he prepared for me. Don’t hesitate to add your comments or questions !


link to IEC web site

The IEC 60439-X standards cover all Low Voltage switchgear and controlgear assemblies, i.e. all kind of switchboards and busbar trunking systems. Intended to ensure safety and power availability, they have a long track record of well proven and widely recognized tools, both for design and verification rules and as a reference for certification.

They are now evolving towards a new IEC 61439-X series, aiming to better cover all Assemblies and ensure that the specified performances are achieved.

The main changes may be summarized as follows :

1 – Recognition is made of the evolution of the organization of the industry, between Original Manufacturer and Assembly Manufacturer :

  • The conditions for Assembly Manufacturers to benefit from the design verifications made by the Original Manufacturer are stated.


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