Siemens 8DA10 Series Installation And Operating Instructions Manual page 81

Earthing the panels
861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11
➭ Repeat the assembly operations for the short-circuit bridges at the panel connection
housings until all bar ends of the switchgear are interconnected.
Fig. 77: Earthing at the short-circuit bridge of the panel connection housings
(work-in-progress earthing)
The cross-sections and materials of the earthing conductors are specified in the DIN/VDE 0101
or IEC 61936-1 standard and in the relevant country-specific standards.
➭ Connect the earthing busbar to the substation earth.
Recommendation:
In case of panel groups, earth the end panels and every fifth panel at least.
➭ Mount an earthing cable or an earthing bar to the earthing bolt of the earthing busbar.
Fig. 78: Earthing bolt of earthing busbar at the right end panel (example)
①
Short-circuit bridge at the circuit-breaker housings
② Earthing bolt M12 (earthing point for substation earth)
③ Earthing bar in the switchgear frame
Installation
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