Introduction to IEC 61439 – A new standard on Switchgear and Controlgear Assemblies (photo by ba-online.info) IEC 60439, the standard for low-voltage switchgear and controlgear assemblies, was under restructuring from the last decade. The new series of IEC 61439 standards were published in January 2009. This standard has brought considerable clarity in technical interpretation. The new standard follows the philosophy of IEC 60947 series i.e. IEC 61439-1 is ‘ General Rules’ standard to be referred to by subsidiary product parts of IEC 61439 series. The IEC 60439 standards were ambiguous about how to assess compliance of partially type tested assemblies. As a result manufacturers and testing bodies often treated partially type-tested assemblies differently. One of the main features of IEC 61439-1 is that the discrimination between Type Tested Assemblies ( TTA) and Partially Type Tested Assemblies ( PTTA) has been eliminated by the verification approach. The three different but equivalent types of verification methods are introduced and these are: Verification by Testing Verification by Calculation/ Measurement Verification by Design rules The requirements regarding short circuit performance, temperature rise, dielectric properties and rated diversity factor have been covered in more detail. Introduction to IEC 61439 – A new standard on Switchgear and Controlgear Assemblies Shape Up Your Knowledge / Want to be a better electrical engineer? Subscribe to professional technical articles. Sharpen up your knowledge in field of electrical engineering now! Subscribe Now Page edited by E. C. ( Google).
You are here: Home > Support > Download Documents and Software > IEC 61439-2 standard The reference for safe and reliable LV switchboards Share Share on facebook Facebook Share on twitter Twitter Share on delicious Delicious Share on myspace My Space Share on linkedin Linked In More sharing services. Share more. Email Back prm-javascript-back-follow Preview online Document Reference: DESWED101028 EN Document Type: Brochure Download (.pdf 459.5 KB) Add to my Documents More information Document Languages: English Document Date: Version: 1.2 Related Product Ranges Product Ranges: Blokset, i PMCC, Okken, Prisma, Prisma G, Prisma i PM File(s) Showing 1 result. prm-table-data-filename DESWED101028 EN_web.pdf (459.5 KB) My Documents.
The coming into force of the new IEC 61439 series of international standards, adopted in Europe (with possible variations) as EN 61439, has changed the requirements for low-voltage power distribution boards in the European Economic Area. It significantly impacts electrical power distribution in buildings and industrial applications. The entirely restructured series of standards came into force on June 1, 2010. After the end of the transition period, the IEC 61439 series replaced the previous IEC 60439 series of standards. The low-voltage power distribution boards ensure energy-efficient power distribution Contents 1 General information 2 Scope of the standards 3 Significant changes to EN 60439 3.1 Black box concept 3.2 Design and Routine verification 4 Itemized verification 5 External links General information[edit] The new IEC 61439 series of international standards defines clear regulations for low-voltage switchgear and controlgear assemblies. It specifies the safety requirements for the electrical equipment of planners, system engineers, electricians and end users in order to define protection objectives for people and industrial plants with regards to electrical installations. A low-voltage switchgear and controlgear assembly is defined as the combination of one or more low-voltage switching devices and associated equipment for control, measuring, signaling, protecting and switching. Low-voltage switchgear and controlgear assemblies includes: Arc fault detection device ( AFDD circuit breakers, miniature circuit breakers, residual current protective devices, cables, terminals, etc. The standard applies for power distribution boards, switching and control systems, meter cabinets and distribution cabinets in residential and non-residential buildings, distribution boards for construction sites and power distribution cabinets as well as for controlgear assemblies in.
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