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IEC 62271-208-ed.1.0
High-voltage switchgear and controlgear - Part 208: Methods to quantify the steady state, power-frequency electromagnetic fields generated by HV switchgear assemblies and HV/LV prefabricated substations, both for rated voltages above 1 kV and up to and including 52 kV
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STANDARD published on 23.12.2025
The information about the standard:
Designation standards: IEC 62271-208-ed.1.0
Publication date standards: 23.12.2025
SKU: NS-1253499
The number of pages: 105
Approximate weight : 346 g (0.76 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Annotation of standard text IEC 62271-208-ed.1.0 :
IEC 62271-208:2025 gives practical guidance for the evaluation and documentation of the external steady state power-frequency electromagnetic fields which are generated by HV switchgear and controlgear assemblies and prefabricated substations. Basic requirements to measure or calculate the electric and magnetic fields are summarised for assemblies covered by IEC 62271-200 and IEC 62271-201, and for prefabricated substations covered by IEC 62271-202. NOTE 1 The methods described in this document refer to three-phase equipment. However, the methodology can be used correspondingly for any single- or multi-phase equipment covered by this document. This document applies to equipment rated for voltages above 1 kV up to and including 52 kV and power-frequencies from 15 Hz to 60 Hz. The electromagnetic fields which are generated by harmonics or transients are not considered in this document. However, the methods described are equally applicable to the harmonic fields of the power-frequency. Detailed generic information on requirements and measurements of low-frequency electromagnetic fields is given in IEC 61786-1 and IEC 61786-2. This document covers evaluation under factory or laboratory conditions before installation. The electric and the magnetic fields can be evaluated either by measurements or by calculations. NOTE 2 Where practicable, the methods described in this document can also be used for installations on site. It is not within the scope of this document to specify limit values of electromagnetic fields or methods for the assessment of human exposure. IEC 62271-208:2025 La presente partie de lIEC 62271 fournit des recommandations pratiques pour levaluation et la documentation des champs electromagnetiques a frequence industrielle en regime etabli externes qui sont generes par les ensembles dappareillages et les postes prefabriques HT. Les exigences elementaires pour le mesurage ou le calcul des champs electriques et magnetiques sont recapitulees pour les ensembles couverts par lIEC 62271-200 et lIEC 62271-201 et pour les postes prefabriques couverts par lIEC 62271-202. NOTE 1 Les methodes decrites dans le present document sappliquent aux equipements triphases. Toutefois, la methodologie peut etre utilisee respectivement pour tout equipement monophase ou multiphase couvert par le present document. Le present document sapplique aux equipements assignes pour des tensions superieures a 1 kV et inferieures ou egales a 52 kV et des frequences industrielles comprises entre 15 Hz et 60 Hz. Les champs electromagnetiques qui sont generes par des harmoniques ou des transitoires ne sont pas pris en compte dans le present document. Toutefois, les methodes decrites sappliquent egalement aux champs harmoniques de la frequence industrielle. LIEC 61786-1 et lIEC 61786-2 fournissent des informations generiques detaillees concernant les exigences et les mesurages des champs electromagnetiques a basse frequence. Le present document traite de levaluation dans les conditions dusine ou de laboratoire avant linstallation. Les champs electriques et magnetiques peuvent etre evalues par des mesurages ou par des calculs. NOTE 2 Lorsque cela est possible, les methodes decrites dans le present document peuvent egalement etre utilisees pour les installations sur site. La specification de valeurs limites pour les champs electromagnetiques ou de methodes devaluation de lexposition humaine ne releve pas du domaine dapplication du present document.
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