Protect PV.500_MH Operating Instructions
2.8.4Risks due to Loss of Control
ATTENTION
Failure of remote signalling.
If remote signalling fails or the signal lines are interrupted, the control room can no longer control the equipment.
In such an event, faults can only be identified locally at the unit itself.
Failure of external emergency switching device
Disconnect the equipment safely.
ATTENTION
Failure of the display and operation unit.
If the display and operation unit fails, the skilled personnel will no longer be able to control the equipment.
In such an event, faults will no longer be displayed.
Inform the control room.
2.8.5Risks from Maintenance and Repair Work
i
Only trained and qualified skilled personnel (as de- scribed above) may work on or around the equipment while strictly observing the safety regulations.
DANGER
Risk to life due to electric shock.
Potentially fatal voltages are present in the equipment.
Disconnect safely.
Secure the unit against being switched back on.
Verify that all poles are
Earth and
Provide protection in the form of covers or barriers for any neighbouring live parts.
ATTENTION
Damage to property.
Only use original spare parts.
Do not intervene in the equipment without authorisa- tion to do so.
Observe the safety regulations.
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