Page 19Operation of systems with LV fuse-switch-disconnectors8.4.3DANGER! Risk of fatal injury from electric shock!Never partially open LV fuse switch disconnectorsOperate the LV fuse switch disconnectors on the handle.Its intended that LV fuses are only used by qualified electricians or persons trained in elec-trical engineering eg: IEC 60269-2 or certified with respect to the local wiring and safetyregulations applicable in your country.When switching the devices, the following must be observed: Ensure that commissioning, decommissioning and operation are only carried out byqualified electricians or persons trained in electrical engineering in accordance withVDE 0105-100. or certified with respect to the local wiring and safety regulations appli-cable in your country. Ensure that only fuse links with silver-plated knives or silver-plated disconnectionknives are used. Only operate LV fuse switch disconnectors by the operating handle. Always operate LV fuse switch disconnectors quickly.Figure 8-8 Operation fuse switch disconnector