Earthing The Non-Extendable Switchgear; Interconnecting The Earthing Busbars - Siemens 8DJH Installation And Operating Instructions Manual

7 | Installation

7.17.2 Earthing the non-extendable switchgear

7.18 Interconnecting the earthing busbars

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1. Connect the earthing point of the non-extendable switchgear to the substation earth.
Fig. 95: Earthing point (view from outside)
Earthing point (earthing bolt M12)
1
The units of the earthing busbar must be interconnected at the joints of the switchgear. The
earthing busbars are interconnected with a link. The link is pre-assembled on the earthing
busbar as standard.
Fig. 97: Position of the earthing busbar
Fig. 98: Interconnecting the earthing busbars
1. Remove the bolted joints
2. Brush the oxidized copper surfaces of the earthing busbars
of the supplied mounting paste.
8DJH • Installation and Operating Instructions • Version 11 • 500-8384.9
Fig. 96: Earthing point
Earthing busbar
1
Link
2
and of the link.
3 4
1 Earthing busbar (left-hand panel)
2 Link
Bolted joint of the link (left-hand
3
panel)
Bolted joint of the link (right-hand
4
panel)
5 Earthing busbar (right-hand panel)
and , and apply a thin film
1 5