NCF
11
EN
Depending on the applications that the client intends to use the fan for in the
factory and on the type of installation chosen, the following safety shields
must be fitted:
•
Type A installation: fixed shields at the intake and outlet.
•
Type B installation: shield fitted only at the outlet.
•
Type C installation: shield fitted only at the intake.
•
Type D installation: no shield at either the intake or outlet.
The shielding must be constructed to impede access to the parts of the fan
that could cause injury. It must be robustly built enough to stand the vibrations
and stress caused by the machine and by environmental conditions.It must
be securely fixed in position by devices that will not become loosened by
vibrations and that cannot be removed without the use of tools.
It is, in any case, the person installing the fan who is responsible for ensuring
that adequate measures have been taken to prevent accidental contact with
the fan’s moving parts.
The installer and the user must also take into account other types of risks
present, in particular those caused by foreign matter entering the fan and the
aspiration of explosive, inflammable or toxic gases at high temperatures.
The user must also bear in mind the risks inherent in maintenance work, which
must always be carried out in conditions of the utmost safety, with the fan
separated from the motor or isolated using suitable equipment.
Once the installer and/or user has decided which installation type is to be used
and all the above procedures have been applied, the machine can now be
considered a “complete machine” as described by machine use regulations. An
overall risk evaluation must be made.
2.2
Risks involved in incorrect handling or use
•
Never, for any reason whatsoever, disable, remove, modify or render
inoperative in any other way any of the safety, protective or control
devices of any single component or of the fan itself.
•
Never place hands, arms or any other part of the body near any moving
part.
•
Never extend any part of the body past the limits of the safety barriers.
Do not use any means that will increase normal accessibility to the fan
components.
•
Never use the fan in atmospheres where there is a risk of explosion.
•
Unauthorized operators must not attempt to rectify any malfunction of
the fan and/or modify the functional characteristics or and installation
type.
•
After any unprogrammed maintenance operation that required the
removal of shields, barriers or any other protective device, before
restarting the fan ensure that all these components have been refitted
and are fully functional.
•
All protective and safety devices must be kept in perfect working order
at all times. All indicative and warning plates fixed to the fan must also