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B - GENERAL SAFETY INSTRUCTIONS
ELECTRICAL SAFETY
Connection to the mains
Before you connect your machine, please make sure that:
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The meter, the overintensity protection system and the electrical installation are compatible with its maximum
power rating and its supply voltage.
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It can be connected, in a single-phase or three-phase with earth system, to a socket compatible with the plug
on its power cord (mobile equipment).
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If the cable is connected to a fixed point, the earth connection, if there is one, may never be cut off by the
system offering protection from electric shocks.
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The switch, if there is one, is set to OFF.
Workstation
Arc welding and cutting requires strict compliance with safety requirements in respect of electrical currents (Order
of 14 December 1988).
Working on the machine
Before any internal checking or repairs, make sure that the machine has been disconnected from the electrical
system by locking it out:
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Accidental connection of the cable of a fixed system has been made impossible
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Cutting off by means of a fixed connection device relates to all poles (phase and neutral. It must be in the
OFF position, with no possibility of being put into service by mistake
Some machines have an HV/HF arc ignition circuit (indicated by a plate). Never work inside such a box.
Any work on electrical systems must be carried out by persons qualified for that purpose (Decree 88-1056 of 14
November 1988, Section VI, Art 46).
Maintenance
From time to time, check that the machinery and its electrical accessories - connectors, flexible cables and
extension cords - are correctly insulated and connected.
Work for maintaining and repairing insulating enclosures and ducts may not be carried out in a haphazard manner
(Section VI, Art. 47 Decree 88-1056 of 14 November 1988).
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All repairs are to be carried out by specialists, or better yet, defective accessories should be replaced.
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Regularly check that the electrical connections are tight, with no heating.
Any fans placed in a circuit in which the air is laden with dust must be cleaned from time to time. That is because
the turbine may be fouled and become unbalanced, leading to increased noise and premature wear and tear of
bearings. Maintenance is required at least after every six months, depending on the type of dust treated.
The fan is an essential element of your extraction system.
Incorrect operating or inadequate maintenance could make the operating position less safe. That is why the fan
must be maintained in perfect condition.
Your installation has been selected for a specific application. The turbine is characterised by an operating point
based on extraction speed (speed of air in the piping) and head loss.
In accordance with the regulations of CARSAT and INRS, the system must be inspected from time to time to make
sure that it continues to comply with its reference values.
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8695 8014/A
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