Diretrizes para montagem de painéis de baixa tensão em conformidade com a norma IEC 61439 partes 1 e 2

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Diretrizes para montagem de painéis de baixa tensão em conformidade com a norma IEC 61439 partes 1 e 2

Publicado: 17 de julho de 2013 · Categoria: Technical Papers

Deste documento

Technical Application Papers No.11 Guidelines to the construction of a low-voltage assembly complying with the Standards IEC 61439 Part 1 and Part 2 Technical Application Papers Index Introduction................................................ 3 6 Forms of internal separations........................................................... 17 1 Standards on low-voltage assemblies and relevant ap- 7 Verification of the temperplicability ature-rise limits inside assemblies 1.1 The Std. IEC 61439-1................................ 4 2 Rated electrical characteristics of an assembly...................... 8 3 Classification of electrical assemblies 7.1 Introduction..................................................... 18 7.2 Thermal verification of the assembly.............. 20 7.3 Calculation of temperature rise in compliance with the Standard IEC 60890.......................... 24 3.1 Open-type and enclosed assemblies............. 10 3.2 External design................................................ 10 3.3 Conditions of installation................................. 10 3.4 Functional classification.................................. 11 8 Verification of performances under short-circuit conditions 4 Degree of protection IP of an assembly...................................... 12 8.2 Short-circuit current and suitability of the as- 8.1 Verification of short-circuit withstand strength.... 29 sembly to the plant.......................................... 30 4.1 Degree of protection IP of...