Eaton EMR-3MP0 - Commissioning; Safety precautions:

8 Commissioning
Before starting work on an open switchboard, it is required that the switchboard is de-
energized and the following 󰊎ve safety regulations have been met.
DANGER!
Safety precautions:
• Disconnect the power supply;
• Secure against reconnection;
• Verify that the equipment is de-energized;
• Connect to ground and short-circuit all phases; and
• Cover or safeguard all live adjacent parts.
DANGER!
The secondary circuit of a current transformer must never be opened during operation.
The prevailing high voltages can cause severe injury or death.
WARNING!
Even when the auxiliary voltage is switched o󰊍, it is likely that there are still hazardous
voltages at the component connections.
All locally applicable national and international installation and safety regulations for
working at electrical power installations MUST always to be followed.
WARNING!
Prior to the initial voltage connection, the following must be guaranteed:
• Correct grounding of the device;
• All signal circuits must be tested;
• All control circuits must be tested;
• The transformer wiring must be checked;
• Correct rating of the CTs;
• Correct burden of the CTs;
• The operational conditions must be in line with the Technical Data;
• Correct rating and function of the CT fuses;
• Correct wiring of all digital inputs;
• Polarity and capacity of the supply voltage; and
• Correct wiring of the analog inputs and outputs.
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8 Commissioning