THERMAL ARC 300 GMS NOT 124-r02

THERMAL ARC

Notice NOT 124

Rev : 02

300 GMS

Date : 15/10/09

SAFETY

2.

ELECTRIC SECURITY

2.1.

CONNECTION OF THE WELDING POWER SOURCE TO THE NETWORK

Before connecting your equipment, you must check that:

-The meter, the safety device against over-currents, and the electric installation are compatible with the maximum power and the supply voltage of the welding power source (refer to the instructions plates).

-The connection, either single-phase, or three-phase with earth can be effected on a socket compatible with the welding power source cable plug.

If the cable is connected to a fixed post, the earth, if provided, will never be cut by the safety device against electric shocks.

-The ON/OFF switch (if exists) situated on the welding power source, is turned off.

2.2.

WORKING AREA

The use of arc welding implies a strict respect of safety conditions with regard to electric currents (Decree dated

14.12.1988).

It is necessary to check that no metal piece accessible to the operators and to their assistants can come into direct contact with a phase conductor and the neutral of the network. In case of uncertainty, this metal part will be connected to the earth with a conductor of at least equivalent section to the largest phase conductor.

Make sure that all metal pieces that the operator could touch with a non insulated part of his body (head, hands without gloves on, naked arms ...) is properly grounded with a conductor of at least equivalent section to the biggest supply cable of the ground clamp or welding torch. If more than one metal ground are concerned, they need to be all interlinked in one, which must be grounded in the same conditions.

Unless very special care have been taken, do not proceed to any arc welding or cutting in conductive enclosures, whether it is a confined space or the welding machine has to be left outside. Be even more prudent when welding in humid or not ventilated areas, and if the power source is placed inside (Decree dated

14.12.1988, Art. 4).

2.3.

INTERVENING

-Before carrying out any internal checking or repair work, check that the power source has been separated from the electrical installation by locking and guard devices.

-The current plug has to be taken out. Provisions have to be taken to prevent an accidental connection of the plug to a socket.

-Cut-off through a fixed connecting device has to be omnipolar (phases and neutral). It is in the "OFF" position and cannot be accidentally put into operation.

-Maintenance works of electrical equipment must be entrusted to qualified people (Section VI, Art. 46).

USER’S MANUAL

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