Maintenance 105
For this purpose, two grounding harnesses are needed. They can be ordered separately
as an optional grounding harness set (consisting of two grounding harnesses plus a
telescopic insulating pole) for the 3-phase power input.
Notice: To adapt grounding harness ordered from ABB, ball type grounding studs are
provided as option.
Example for grounding harness
1. Open the COU door.
2. Connect the enclosure grounding clamp (item 2 in the figure above) to the cabinet’s
PE busbar.
3. Remove the protective plate between COU and TEU.
1 Telescopic insulating pole
2 Enclosure ground clamp
3 Busbar ground clamp
1
2
3
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