IEC 63257-ed.1.0

Annotation of standard text IEC 63257-ed.1.0 :

IEC 63257:2026 applies to photovoltaic (PV) system components and communication networks supporting the communication of the DC shutdown equipment using power line communication. This document defines how to propagate the operational state of the entire PV system (normal / shutdown) to the individual power production components comprising the PV system. The document also describes requirements and constraints associated with power line communication networks that are used to support this application. This document defines the communication requirements for reducing the output voltage of the DC cables that leave a PV array. This output voltage reduction function can support emergency responders during firefighting operations. For this function, communication is necessary from the inverter / initiator to the PV-modules. IEC 63257:2026 s’applique aux composants d’un systeme photovoltaique (PV) et aux reseaux de communication qui soutiennent la communication de l’equipement d’arret du courant continu au moyen d’une communication de ligne electrique. Le present document definit comment diffuser l’etat de fonctionnement de tout le systeme photovoltaique (normal/arret) vers chacun de ses composants de production de puissance. Il decrit egalement les exigences et les contraintes associees aux reseaux de communication de ligne electrique utilises pour soutenir cette application. Le present document definit les exigences de communication qui permettent de reduire la tension des cables de courant continu en sortie d’un groupe photovoltaique.