IEC 62548-ed.1.0

Annotation of standard text IEC 62548-ed.1.0 :

IEC 62548:2016 sets out design requirements for photovoltaic (PV) arrays including DC array wiring, electrical protection devices, switching and earthing provisions. The scope includes all parts of the PV array up to but not including energy storage devices, power conversion equipment or loads. An exception is that provisions relating to power conversion equipment are covered only where DC safety issues are involved. The interconnection of small DC conditioning units intended for connection to PV modules are also included. The object of this document is to address the design safety requirements arising from the particular characteristics of photovoltaic systems. Direct current systems, and PV arrays in particular, pose some hazards in addition to those derived from conventional AC power systems, including the ability to produce and sustain electrical arcs with currents that are not greater than normal operating currents. LIEC 62548:2016 definit les exigences de conception relatives aux groupes photovoltaiques, y compris les dispositions concernant le cablage en courant continu des groupes, les dispositifs de protection electrique, la commutation et la mise a la terre. Le domaine dapplication couvre toutes les parties du groupe photovoltaique, a lexception des dispositifs de stockage denergie, des equipements de conversion de puissance et des charges. Les dispositions relatives aux equipements de conversion de puissance ne sont cependant couvertes que dans le cas ou il existe des problemes de securite en courant continu. Linterconnexion de petites unites de traitement en courant continu destinees a la connexion des modules photovoltaiques est egalement couverte. Le present document vise a traiter des exigences de securite de conception qui decoulent des caracteristiques particulieres des systemes photovoltaiques. Les systemes a courant continu, les groupes photovoltaiques en particulier, presentent certains dangers qui viennent sajouter a ceux des systemes dalimentation en courant alternatif conventionnels, notamment leur tendance a produire et a maintenir des arcs electriques sous des intensites de courant inferieures ou egales a celles des courants de fonctionnement normal.