Quadros de baixa tensão de potência e controlo motor (PCC e MCC) resistentes a arcos eléctricos

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Quadros de baixa tensão de potência e controlo motor (PCC e MCC) resistentes a arcos eléctricos

Publicado: 13 de setembro de 2013 · Categoria: Cadernos técnicos

Deste documento

6 Technical Application Papers February 2008 1SDC007105G0201 Arc-proof low voltage switchgear and controlgear assemblies Technical Application Papers Arc-proof low voltage switchgear and controlgear assemblies Index 1 Generalities about LV switchgear and controlgear assemblies 1.1 Introduction.............................................. 2 1.2 Standards concerning switchboards and relevant applicability................................ 3 1.3 Electrical characteristics of assemblies... 4 1.4 Classification of assemblies.................... 4 1.4.1 Constructional types............................................... 4 1.4.2 Primary distribution switchgear (Power Center)........................................................ 4 1.4.3 Secondary distribution switchgear.......................... 5 1.4.4 Motor Control Center (MCC)................................... 5 1.4.5 Control, measurements and protection boards...... 6 1.4.6 Assemblies for construction sites (ACS)................. 6 1.5 Degree of protection IP............................ 7 1.5.1 Degrees of protection provided by switchgear and controlgear assemblies.................................... 8 2 The electric arc 2.1 Electrical arc phenomenon.................... 13 2.2 Effects of the electric arc inside switchgear and controlgear assemblies................... 13 2.3 Effects of the electric arc on human beings.................................................... 14 3 Internal arc-proof switchgear and controlgear...