IG-273-EN version 03; 05/08/2020
59
General instructions
cpg.0 ENA range
Operations sequence
Earthing of the left busbar
Initial situation: Disconnector, earthing switch and
circuit-breaker open.
1. Move left hand SHUTTERS down to OPEN and insert
the lever in the left disconnector driving shaft lever
with the disconnector open symbol aligned with the
“I” in the Disconnector operation area (grey). Then
turn it CLOCKWISE. Check that the disconnector status
indicator on the left shows closed.
Figure 7.71. Left busbar earthing sequence (i)
2. Move right hand SHUTTERS down to OPEN and insert
the lever in the right earthing switch driving shaft lever
with the earthing switch open symbol aligned with the
“I” in the earthing switch operation area (yellow). Then
turn CLOCKWISE. Check that the earthing switch status
indicator on the right shows closed.
Figure 7.72. Left busbar earthing sequence (ii)
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