SAFE DISCONNECTION OF THE PLANT
In order to be able to disconnect the inverters from voltage sources for replacement or repair, NEN1010 (provision 536.3.1) requires an isolating switch on the AC and DC circuits. This switch is clearly recognizable for laymen and switches off the entire installation. If the switch is not in sight of the technician during work, it shall be locked or have a warning sign. To indicate dangerous DC voltage, indication shall be provided at the connection of DC lines to equipment.