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Installation and maintenance - Three-phase induction motors
4850 en - 2018.11 / f
IMPORTANT
These symbols
appear in this document whenever it is important to take special precautions during installation,
operation, maintenance or servicing of the motors.
It is essential that electric motors are installed by experienced, qualified and authorized personnel.
In accordance with the main requirements of EU Directives, the safety of people, animals and property should be
ensured when fitting the motors into machines.
Particular attention should be given to equipotential ground or earthing connections.
The noise level of the machines, measured under standard conditions, conforms to the requirements of the standard.
The following preliminary precautions must be taken before working on any stationary device:
• mains voltage disconnected and no residual voltage present
• careful examination of the causes of the stoppage (blocked transmission - loss of phase
- cut-out due to thermal protection - lack of lubrication, etc)