ABB ZX0 Manual For Installation And Operation page 38

Fig. 4.1.3: Example switchgear, consisting of two busbar sections, in operation
Fig. 4.1.4: Opening the circuit-breakers in the feeder panels in the area of the busbar section to be earthed
Fig. 4.1.5: Opening the disconnectors and switch-disconnectors in the feeder panels in the area of the busbar section to be earthed
38 | Manual ZX0 HB 600 en - Revision 05