Assembling The Switchgear - Siemens NXPLUS C Installation And Operating Instructions Manual

802-9081.9 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • Revision 11
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Assembling the switchgear

In the instructions given in the following sections it is assumed that a new switchgear is being
installed which has not yet been connected to the mains, and that it is therefore not live.
Hazardous voltage.
Will cause death, serious injury and property damage.
Always observe the Five Safety Rules:
➭ Isolate.
➭ Secure against reclosing.
➭ Verify safe isolation from supply.
➭ Earth and short-circuit.
➭ Cover or barrier adjacent live parts.
Functional failure due to pollution
Pollution or stepping on the switchgear can lead to functional failures during operation.
➭ Avoid any work that could pollute the switchgear (e. g. sawing, filing, painting or
plastering in the switchgear room, etc.).
➭ Do not step on the switchgear.
Damage to the operating mechanism
Undoing the sealed bolts can damage the Siemens high-voltage vacuum contactor.
Components inside the operating mechanism can come loose.
➭ Do not remove the bolts sealed with wax.
➭ If the sealing wax is broken, contact the regional Siemens representative.
Fig. 65: Bolts with sealing wax at the Siemens high-voltage vacuum contactor
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