Switchgear Earthing - Siemens NXPLUS C Installation And Operating Instructions Manual

802-9074.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C Wind • Revision 05
Detach the pre-assembled link provided at the joint, and push it through the opening of the

side wall of the subframe.
Brush oxidized copper surfaces and apply a thin film of mounting paste.

Bolt the link together with the adjacent unit of the earthing busbar using an M 10 bolt.

Tightening torque: 50 Nm.
Proceed in the same way with the other joints.

14.6

Switchgear earthing

The cross-sections and materials of the earthing conductors are specified in the DIN/VDE 0101
(IEC 61936-1) standard or in the relevant country-specific standards.
Connect the earthing busbar of the two end panels - at least - (bolt M 12) to the substation

earth. In addition, earth approximately every fifth panel.
The diameter of the earthing cable must be at least 70 mm
Lay the earthing cable through the right-hand wiring duct into the cable basement.

Example for an earthing with a 95 mm
2
.
2
cable
Installation
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